DE2913410C2 - Photoelectric measuring device - Google Patents

Photoelectric measuring device

Info

Publication number
DE2913410C2
DE2913410C2 DE2913410A DE2913410A DE2913410C2 DE 2913410 C2 DE2913410 C2 DE 2913410C2 DE 2913410 A DE2913410 A DE 2913410A DE 2913410 A DE2913410 A DE 2913410A DE 2913410 C2 DE2913410 C2 DE 2913410C2
Authority
DE
Germany
Prior art keywords
measuring device
sheet
photoelectric
optical fiber
optical fibers
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
Application number
DE2913410A
Other languages
German (de)
Other versions
DE2913410A1 (en
Inventor
Siegfried Alfons 8702 Rottendorf Stark
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 DE2913410A priority Critical patent/DE2913410C2/en
Priority to IT20942/80A priority patent/IT1131077B/en
Publication of DE2913410A1 publication Critical patent/DE2913410A1/en
Application granted granted Critical
Publication of DE2913410C2 publication Critical patent/DE2913410C2/en
Expired legal-status Critical Current

Links

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
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/14—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors by photoelectric feelers or detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/20—Assisting by photoelectric, sonic, or pneumatic indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/342—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells the sensed object being the obturating part

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Description

3535

Die Erfindung betrifft eine Meßeinrichtung zur wertmäßigen Erfassung einer Lage einer Kante eines Bogens zu einer Bezugslinie auf einer Fläche einer Bogenrotationsdruckmaschine gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a measuring device for the value detection of a position of an edge of a Arc to a reference line on a surface of a sheet-fed rotary printing press according to the preamble of claim 1.

Derartige Einrichtungen sind z. B. durch die DE-OS 59 469 bekanntgeworden.Such facilities are z. B. has become known from DE-OS 59 469.

Aus der DE-OS 22 02 087 ist eine lichtelektrische Meßeinrichtung zur Erfassung der Lage einer Bogenkante bei einer Bogenrotationsdruckmaschine bekannt. Bei dieser Meßeinrichtung wandelt jede lichtelektrische Auswerteinheit ein Lichtsignal in ein elektrisches Signal ' um, das einem Zähler zugeführt wird.From DE-OS 22 02 087 a photoelectric measuring device for detecting the position of a sheet edge is known in a sheet-fed rotary printing press. With this measuring device every photoelectric converts Evaluation unit converts a light signal into an electrical signal, which is fed to a counter.

Jedoch muß jede einzelne Fotozelle für sich verstellbar auf dem Anlegeblech angeordnet sein, weil bekanntlich in den meisten Fällen bei Fotozellen die mechanische und optische Achse nicht übereinstimmen. Beim Auswechseln der einzelnen Fotozellen ist also eine diffizile justierarbeit zu leisten. Beim Einsatz von Multifotozellen ist beim Defekt einer einzigen Fotozelle die gesamte Multifotozelle zu ersetzen. Fotozellen haben aber auch einen relativ großen Außendurchmesser und müssen daher in entsprechendem Abstand voneinander eingebaut werden; hierzu kommt noch der Bereich, der zum genauen Justieren der Fotozellen notwendig ist. Diese großen Abstände der Fotozellen voneinander erlauben nur relativ große Meßinkremente. However, each individual photocell must be arranged on the mounting plate so that it can be adjusted because, as is well known, in most cases with photocells the mechanical and optical axes do not coincide. When changing the individual photocells, a difficult adjustment work has to be done. When using multi-photo cells, if a single photo-cell is defective, the entire multi-photo cell must be replaced. However, photocells also have a relatively large outer diameter and must therefore be installed at an appropriate distance from one another; in addition there is the area that is necessary for precise adjustment of the photocells. These large distances between the photocells allow only relatively large measuring increments .

Der Erfindung liegt die Aufgabe zugrunde, eine Meßeinrichtung zur wertmäßigen Erfassung der Lage einer Kante eines Bogens auf einem Gegenstand, z. B.The invention is based on the object of a measuring device for the value detection of the position an edge of a sheet on an object, e.g. B.

eines Anlegebleches, einer Bogenrotationsdruckmaschine zu schaffen; hierbei soll eine Messung der Lage der Bogenkahte auf mindestens 0,01 mm genau möglich sein, und außerdem soll jedes Meßinkrement für sich digital auswertbar sein.a feed sheet, a sheet-fed rotary printing press to accomplish; in this case a measurement of the position of the curved seam should be possible with an accuracy of at least 0.01 mm and each measuring increment should be digitally evaluable for itself.

Die mit der Erfindung erzielbaren Vorteüe bestehen insbesondere darin, daß jedes Meßinkrement für sich allein digital auswertbar ist. Hierdurch ist eine einfache und genaue Messung, und Auswertung der Lage des Bogens auf z. B. einem Anlegetisch möglich. Ferner sind Umfonneinrichtungen nicht notwendig, um einen digitalen Meßwert aus einem analogen zu erhalten.The advantages that can be achieved with the invention are, in particular, that each measurement increment for itself can only be evaluated digitally. This enables a simple and precise measurement and evaluation of the position of the Arc on z. B. a feed table possible. Furthermore are Forming facilities are not necessary in order to have a to obtain a digital measured value from an analog one.

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

Fig. 1 ein Anlegeblech einer Bogenrotationsdruckmaschine mit der erfindungsgemäßen Einrichtung,1 shows a contact plate of a sheet-fed rotary printing press with the device according to the invention,

F i g. 2 einen Schnitt H-II durch F i g. 1.F i g. 2 shows a section H-II through FIG. 1.

In einem Anlegeblech 1 ist ein rechteckiger Ausbruch 2 von ca. 30 mm Länge und 5 mm Breite quer zur Bogenlaufrichtung ausgestanzt. Dieser Ausbruch 2 dient zur Aufnahme einer Meßeinrichtung 3, welche zur Messung der Vorder-Seitenkanteniage eines (nicht dargestellten) Bogens auf dem Anlegeblech 1 dient. Meßeinrichtung 3 besteht aus einer Vielzahl von mindestens in einer Reihe dicht an dicht liegenden Lichtleitfasern 5. Diese Lichtleitfasern 5 sind z. B. in eine Kunststoffmasse 6 eingegossen und können so bequem am Anlegeblech 1 verschraubt werden, daß sie in den Ausbruch 2 hineinragen. Die Stirnflächen 7 der Lichtleitfasern 5 können gemeinsam überschliffen werden, so daß sie eine vollkommen plane Fläche bilden. Oberhalb in einem Abstand »a« von ca. 50 mm der Stirnflächen 7 der Lichtleitfasern 5 ist eine Lichtquelle 8 angebracht.A rectangular opening 2 approximately 30 mm long and 5 mm wide is punched out transversely to the sheet running direction in a contact plate 1. This cutout 2 is used to accommodate a measuring device 3, which is used to measure the front side edge position of a sheet (not shown) on the contact plate 1. Measuring device 3 consists of a plurality of at least one row of closely spaced optical fibers 5. These optical fibers 5 are z. B. cast in a plastic compound 6 and can be screwed so conveniently on the mounting plate 1 that they protrude into the outbreak 2. The end faces 7 of the optical fibers 5 can be ground over together so that they form a completely flat surface. A light source 8 is attached above at a distance “a” of approx. 50 mm from the end faces 7 of the optical fibers 5.

Von der Lichtquelle 8 tritt z. B. monochromatisches Licht 9 aus und trifft auf die Stirnflächen 7 der Lichtleitfasern 5. Von diesen wird das Licht 9 aufgenommen und über Lichtleitfasern 5 auf Auswerteinheiten 10 geleitet. Jede Lichtleitfaser 5 endet in einer Auswerteinheit 10. Diese kann z. B.-aua einer Fotodiode mit angekoppeltem Verstärker bestehen. Der Verstärker kann mit einer Kippstufe versehen sein, so daß je nachdem, ob Licht 9 auf die Stirnfläche 7 einer Lichtleitfaser 5 auftrifft oder nicht, am Verstärkerausgang ein L- oder Null-Signal ansteht. Dieses Signal kann dann einzeln oder in Verbindung mit einer Zählschaltung ausgewertet werden.From the light source 8 occurs, for. B. monochromatic light 9 and strikes the end faces 7 of the Optical fibers 5. The light 9 is received by these and sent to evaluation units via optical fibers 5 10 headed. Each optical fiber 5 ends in an evaluation unit 10. This can, for. B.-aua a photodiode exist with a coupled amplifier. The amplifier can be provided with a flip-flop so that each according to whether light 9 strikes the end face 7 of an optical fiber 5 or not, at the amplifier output an L or zero signal is present. This signal can then be used individually or in conjunction with a counting circuit be evaluated.

Die Lichtleitfaserdurchmesser »d« werden zweckmäßig entsprechend den gewünschten Meßinkrementen gewählt. So wird man zweckmäßigerweise bei einem gewünschten Meßwertinkrement von 0,01 mm eine Lichtleitfaser wählen, deren Durchmesser 0,01 mm beträgt.The optical fiber diameters "d" are expediently selected according to the desired measurement increments. For example, if the desired increment of the measured value is 0.01 mm, an optical fiber with a diameter of 0.01 mm will be selected.

In einem Ausführungsbeispiel (F i g. 2) sind zwei Reihen mit hintereinander liegenden Lichtleitfasern 5 angeordnet. Die zwei Reihen Lichtleitfasern 5 sind dabei dicht an dicht und um einen halben Lichtleitfaserdurchmesser d/2 zueinander versetzt angeordnet.In one embodiment (FIG. 2), two rows with optical fibers 5 lying one behind the other are arranged. The two rows of optical fibers 5 are arranged close to one another and offset from one another by half an optical fiber diameter d / 2.

TeilelisteParts list

1 Anlegebleeh1 mooring

2 Ausbruch2 outbreak

MeßeinrichtungMeasuring device

LichtleitfaserOptical fiber

KunststoffmassePlastic compound

StirnflächeFace

SS. 8
9
108th
9
10 33 Lichtquelle
Licht
AuswerteinheitLight source
light
Evaluation unit ii
'■■Ρ'■■ Ρ a
d a
d Abstand
Lichtleitfaserdurchmesser.distance
Fiber optic diameter. 'Λ'Λ Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings ; ;;; ;;

Claims (3)

Patentansprüche:Patent claims: 1. Lichtelektrische Meßeinrichtung zur wertmäßigen Erfassung einer Lage einer Kante eines Bogens zu einer Bezugslinie auf einer Hache einer Bogenrotationsdruckmaschine, wobei im Bereich bei der Bezugslinie mehrere lichtelektrische Auswerteinheiten einer Lichtquelle gegenüber liegen, wobei jede lichtelektrische Auswerteinheit ein Lichtsignal in ein entsprechendes elektrisches Signal umwandelt, das einer Zählschaltung zugeführt wird, dadurch gekennzeichnet, daß zwischen Lichtquelle (8) und jeder Lichtelektrischen Auswerteinheit (10) je eine höchstens 0,01 mm dicke Lichtleitfaser (5) angeordnet ist und die lichtleitfa- ii sern (5) in mindestens einer Reihe dicht an dicht, auf die zu messende Bogenkante bezogen, hintereinander angeordnet sind, wobei die dem Bogen und der Lichtquelle (8) zugewandten Lichtleitfaserenden eine plane Stirnfläche (7) aufweisen.1. Photoelectric measuring device for the value detection of a position of an edge of a sheet to a reference line on a Hache of a sheet-fed rotary printing press, with in the area at several photoelectric evaluation units of a light source are opposite the reference line, wherein each photoelectric evaluation unit converts a light signal into a corresponding electrical signal, which is fed to a counting circuit, characterized in that between the light source (8) and each photoelectric evaluation unit (10) an optical fiber (5) with a maximum thickness of 0.01 mm is arranged and the optical fiber ii sern (5) in at least one row close together, based on the sheet edge to be measured, one behind the other are arranged, the optical fiber ends facing the arc and the light source (8) have a flat end face (7). 2. Lichtelektrische Meßeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwei Reihen mit hintereinander liegenden Lichtleitfasern (5) angeordnet sind, und daß die zwei Reihen Lichtleitfasern (5) dicht an dicht und um einen halben Lichtleitfaserdurchmesser (^) zueinander versetzt angeordnet sind.2. Photoelectric measuring device according to claim 1, characterized in that two rows are arranged with one behind the other optical fibers (5), and that the two rows of optical fibers (5) close together and offset from one another by half an optical fiber diameter (^) are arranged. 3. Lichtelektrische Meßeinrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Lichtleitfasern (5) in eine Kunststoffmasse (6) eingegossen sind und diese in einem Ausbruch (2) unterhalb eines Anlegebleches (1) einer Bogenrotationsdruckmaschine angeordnet sind.3. Photoelectric measuring device according to claims 1 and 2, characterized in that the optical fibers (5) are cast in a plastic compound (6) and these in an opening (2) below a contact plate (1) of a sheet-fed rotary printing press are arranged.
DE2913410A 1979-04-04 1979-04-04 Photoelectric measuring device Expired DE2913410C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2913410A DE2913410C2 (en) 1979-04-04 1979-04-04 Photoelectric measuring device
IT20942/80A IT1131077B (en) 1979-04-04 1980-03-27 PHOTOELECTRIC MEASUREMENT DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2913410A DE2913410C2 (en) 1979-04-04 1979-04-04 Photoelectric measuring device

Publications (2)

Publication Number Publication Date
DE2913410A1 DE2913410A1 (en) 1980-10-16
DE2913410C2 true DE2913410C2 (en) 1983-08-04

Family

ID=6067337

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2913410A Expired DE2913410C2 (en) 1979-04-04 1979-04-04 Photoelectric measuring device

Country Status (2)

Country Link
DE (1) DE2913410C2 (en)
IT (1) IT1131077B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825295A1 (en) * 1988-07-26 1990-02-01 Heidelberger Druckmasch Ag DEVICE FOR DETECTING THE POSITION OF AN EDGE
DE102010064066A1 (en) * 2010-12-23 2012-06-28 Manroland Ag Light scanner for sampling forward edges in sheet aligned in sheet feeder of sheet processing machine i.e. printing machine, has sensors including measuring segments that are rearwardly arranged in sheet traveling direction

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232490A1 (en) * 1981-09-04 1983-03-31 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device for determining and evaluating ink measuring fields on a printed sheet
JPS5877606A (en) * 1981-09-04 1983-05-11 エム・ア−・エヌ−ロ−ラント・ドルツクマシ−ネン・アクチエンゲゼルシヤフト Detector for position of printing paper on supporter
ATE26674T1 (en) * 1983-01-29 1987-05-15 Roland Man Druckmasch DEVICE FOR DETERMINING AND EVALUATING COLOR MEASUREMENT FIELDS ON A PRINTING SHEET.
CH651807A5 (en) * 1983-03-31 1985-10-15 Bobst Sa DEVICE FOR CONTROLLING ORGANS DELIVERING SHEETS TAKEN FROM A CELL TO A MACHINE WORKING THEREWITH.
JPH0629095B2 (en) * 1983-11-28 1994-04-20 株式会社東芝 Displacement detection method for paper sheets
US4680806A (en) * 1984-12-04 1987-07-14 Koenig & Bauer Aktiengesellschaft Edge location measuring head
DE3541680A1 (en) * 1985-11-26 1987-05-27 Bernd Becker DEVICE FOR CONTROLLING A PLANT FOR PRODUCING STRING PROFILES
DE3644431A1 (en) * 1986-12-24 1988-09-01 Koenig & Bauer Ag ARCH GRIPPER DEVICE IN A ROTARY PRINTING MACHINE WITH ARC GRIPPERS THAT ARE MOVABLE IN THE AXIAL DIRECTION
DE4130677C2 (en) * 1991-09-14 1995-11-23 Roland Man Druckmasch Device for photoelectric monitoring of the run of webs in rotary printing machines
US5525809A (en) * 1994-10-26 1996-06-11 Minnesota Mining And Manufacturing Company Electro-optic sheet-sensing apparatus and method having a movable light emitting element
CH690544A5 (en) * 1995-05-08 2000-10-13 Bobst Sa Photoelectric detector for a register control device in a rotary printing machine.
DE19524891A1 (en) † 1995-07-08 1997-01-09 Heidelberger Druckmasch Ag Device for the lateral alignment of sheets in the feeder of a sheet-fed rotary printing machine
CN111532824A (en) * 2020-05-07 2020-08-14 杭州庚复科技有限公司 Automatic printer correction paper feeding device based on light sensation control principle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911769U (en) * 1962-07-30 1965-03-11 Siemens Ag PHOTOELECTRIC SCANNING DEVICE FOR PUNCH CARDS OD. DGL.
DE2202087A1 (en) * 1971-02-26 1972-09-07 Polygraph Leipzig Photoelectric measuring device on sheet-forming and sheet-processing machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3825295A1 (en) * 1988-07-26 1990-02-01 Heidelberger Druckmasch Ag DEVICE FOR DETECTING THE POSITION OF AN EDGE
DE102010064066A1 (en) * 2010-12-23 2012-06-28 Manroland Ag Light scanner for sampling forward edges in sheet aligned in sheet feeder of sheet processing machine i.e. printing machine, has sensors including measuring segments that are rearwardly arranged in sheet traveling direction

Also Published As

Publication number Publication date
IT8020942A0 (en) 1980-03-27
IT1131077B (en) 1986-06-18
DE2913410A1 (en) 1980-10-16

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