EP0361071B1 - Verfahren und Einrichtung zum Zählen von in Schuppenformation anfallenden flachen Gegenständen wie Druckbogen, Zeitschriften und dgl. - Google Patents

Verfahren und Einrichtung zum Zählen von in Schuppenformation anfallenden flachen Gegenständen wie Druckbogen, Zeitschriften und dgl. Download PDF

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Publication number
EP0361071B1
EP0361071B1 EP89115406A EP89115406A EP0361071B1 EP 0361071 B1 EP0361071 B1 EP 0361071B1 EP 89115406 A EP89115406 A EP 89115406A EP 89115406 A EP89115406 A EP 89115406A EP 0361071 B1 EP0361071 B1 EP 0361071B1
Authority
EP
European Patent Office
Prior art keywords
ultrasonic
imbricated formation
ultrasound
region
counting
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
EP89115406A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0361071A3 (de
EP0361071A2 (de
Inventor
Hanspeter Duss
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.)
Grapha Holding AG
Original Assignee
Grapha Holding 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 Grapha Holding AG filed Critical Grapha Holding AG
Publication of EP0361071A2 publication Critical patent/EP0361071A2/de
Publication of EP0361071A3 publication Critical patent/EP0361071A3/de
Application granted granted Critical
Publication of EP0361071B1 publication Critical patent/EP0361071B1/de
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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M7/00—Counting of objects carried by a conveyor
    • G06M7/08—Counting of objects carried by a conveyor wherein the direction of movement of the objects is changed at the station where they are sensed
    • G06M7/10—Counting of flat overlapped articles, e.g. of cards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/54—Auxiliary process performed during handling process for managing processing of handled material
    • B65H2301/541—Counting
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M2207/00—Indexing scheme relating to counting of objects carried by a conveyor
    • G06M2207/02—Counting of generally flat and overlapped articles, e.g. cards, newspapers

Definitions

  • the known device In the known device, the disadvantages of the known methods that use light sources as energy sources for reflection measurement are avoided. In contrast, the known device is based on the measurement of differences in intensity of the ultrasound waves of the two ultrasound transmitters reflected by the objects and can therefore lead to incorrect measurements if the reflective properties of the objects are uneven, which will often be the case with the overlapping conveyed printed products, and thus impair reliable payment of the objects.
  • the object of the present invention is to provide a method and a device of the type mentioned at the outset which operate independently of intensities of the reflected ultrasound waves in order to ensure reliable counting accuracy.
  • an echo sounder continuously creates two different surface profiles of the moving scale formation from two different points.
  • the narrow side (fold) of a flat object resting on the adjacent specimen in the scale formation, together with the detection of the broad profile of the flat objects moving in the scale formation, can thereby reliably differentiate from false edges, such as folds or protruding leaves at the end of an object and therefore be recorded correctly for the counting of the individual items.
  • an ultrasonic transmitter 7 which acts on the scale formations 6 and 6 'with ultrasonic waves in a form bundled by an aperture 8 in the direction of an axis 9.
  • the ultrasonic transmitter 7 is provided in the same housing with an ultrasonic receiver 7 ', which is designed to receive along the axis 9 from the surfaces of the scale formations 6 and 6' reflected ultrasonic waves and emit corresponding received signals.
  • the sliding plate 1 is provided with an opening 10, which also has a remote from the ultrasonic transmitter 7, firmly connected to the sliding plate 1 and a reflective reference plane 11 forming angle piece 12.
  • continuous scale formation 6 and 6 ' are emitted by the transmitter 7, approximately perpendicular to the broad sides of the printed products arranged in the scale formation by this or in the presence of a gap 5 in the scale formation reflected by the reference plane 11 of the opening 10, whereby the ultrasonic echo returning along the axis 9 is determined by the receiver 7 'and fed as an electrical signal via a control unit 13 to a data processing unit 14.
  • the control unit 13 is designed to use appropriate control signals to force the ultrasound transmitter 7 to emit successive ultrasound pulses, wherein the ultrasound transmitter 7 emits a plurality of ultrasound pulses during the passage of a printed product.
  • the second ultrasound receiver 15 behind the ultrasound transmitter 7 (or in front of it if it is a flipped formation) , which cuts the transmitter axis 9 in the area of the scale formation 6 with its reception axis 16 and whose reception axis 16 is aligned with the fold 17 of the respective printed product of the scale formation 6 located in this area.
  • the receiver 15 thus detects a second echo, scattered at the fold 17, of the ultrasound waves emitted by the ultrasound transmitter 7 in the direction of the axis 16.
  • the echo detected by the receiver 15 is also fed as an electrical signal via the control unit 13 to the data evaluation unit 14.
  • the data processing unit 14 accordingly takes over the Control unit 13 electrical echo pulses of the receivers 7 and 15 at time intervals on the one hand from the respective triggering of an ultrasound pulse by the ultrasound transmitter 7 and on the other hand from the arrival of the echoes in the receivers 7 'and 15 respectively.
  • the data evaluation unit 14 is designed to use this information to calculate the transit time of the sound waves of an ultrasound pulse on the one hand from the ultrasound transmitter 7 to the ultrasound receiver 7 'located at the same location and on the other hand to the second ultrasound receiver 15, and thus also to calculate the corresponding distances.
  • FIG. 2 the distances or distances of the ultrasonic pulses determined by the data evaluation unit from the ultrasonic transmitter 7 back to the ultrasonic receiver 7 'and back to the ultrasonic receiver 15 are shown schematically as a function of time.
  • the time axis t and the distance axis d are arranged somewhat unusual so that a direct vertical correspondence with the chronological sequence of the processes according to FIG. 1 is achieved.
  • the time axis t extends from right to left (for advancing time) and the distance axis d extends from top to bottom (for positive distance values).
  • the measured values of the row d1 relate to the echo signals picked up by the ultrasound receiver 7 '
  • the measured values of the row d2 relate to the echo signals picked up by the ultrasound receiver 15.
  • the measured value series d1 shows a profile which essentially corresponds to the profile of the scale formations 6 and 6' shown in FIG. 1.
  • the measured values d1 represented by small crosses represent the distance of the ultrasound wave from the transmitter 7 to the receiver 7 'calculated by the data evaluation unit 14' at the times in which an ultrasound pulse is triggered in the transmitter 7 by the control unit 13. It can also be clearly seen from the measured value series d1 in FIG. 2 that when the gap 5 between the scale formations 6 and 6 'lies in the area of the ultrasonic transmitter 7, significantly higher measured values are achieved because the ultrasonic pulse in this case is due to the opening 10 is reflected by the distant reference plane 11 of the angle piece 12.
  • the course of the measured value series d2 is composed of individual sections in which the measured values d2 essentially lie on a straight line inclined to smaller travel distances. This is due to the fact that for the receiver 15 each fold 17 is a scattering source for the ultrasonic pulses emitted by the transmitter 7, as long as the fold 17 lies in the effective range of the transmitter 7. With the continuous movement of the scale formations 6 and 6 'in the conveying direction 4, each fold 17 and thus each ultrasound scattering source continuously moves closer to the receiver 15, so that the measured values d2 are actually at least approximately on straight lines, like this is shown in Fig. 2.
  • the device described with reference to FIG. 1 and the operating procedure described with reference to FIG. 2 also advantageously make it possible to measure the conveying speed of the scale formations 6 and 6 'in the conveying direction 4 without further effort. Since the straight lines g (n-1), g (n) and g (n + 1) of the measured values d2 are calculated in the data evaluation unit 14, information regarding the steepness of this straight line is available in the data evaluation unit 14. Thus, the data evaluation unit 14 can also calculate the steepness of this straight line, that is to say the inclination angle ⁇ indicated in FIG. 2 or the tangent of the inclination angle ⁇ .
  • the value tg ⁇ is, however, proportional to the conveying speed of the scale formation, so that the conveying speed mentioned can also be seen at any time by means of a corresponding display in the data evaluation unit 14.
  • the described method and the described device can be used in a very wide range of the conveying speed of the scale formation for the reliable counting of the individual objects in the scale formation, for example in a passage range of 0 to 100 individual objects per second.
  • the frequency of the ultrasonic waves of the ultrasonic transmitter 7 is preferably between 40 kHz and 100 kHz, while the frequency of the ultrasonic pulses is preferably 300 Hz to 1000 Hz.
  • To the arrangement of the receiver 7 ' and 15 in the device of FIG. 1 can also be specified that measured from the common intersection of their axes 9 and 16 on the scale formation 6 from the distance of the ultrasound receiver 7 '(and thus also the ultrasound transmitter 7), for example 5 cm to 20 cm and that of the ultrasonic receiver 15 is, for example, 5 cm to 30 cm.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
EP89115406A 1988-09-30 1989-08-21 Verfahren und Einrichtung zum Zählen von in Schuppenformation anfallenden flachen Gegenständen wie Druckbogen, Zeitschriften und dgl. Expired - Lifetime EP0361071B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3654/88A CH676890A5 (enrdf_load_stackoverflow) 1988-09-30 1988-09-30
CH3654/88 1988-09-30

Publications (3)

Publication Number Publication Date
EP0361071A2 EP0361071A2 (de) 1990-04-04
EP0361071A3 EP0361071A3 (de) 1992-01-22
EP0361071B1 true EP0361071B1 (de) 1994-12-07

Family

ID=4260659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115406A Expired - Lifetime EP0361071B1 (de) 1988-09-30 1989-08-21 Verfahren und Einrichtung zum Zählen von in Schuppenformation anfallenden flachen Gegenständen wie Druckbogen, Zeitschriften und dgl.

Country Status (6)

Country Link
US (1) US5005192A (enrdf_load_stackoverflow)
EP (1) EP0361071B1 (enrdf_load_stackoverflow)
JP (1) JPH02156391A (enrdf_load_stackoverflow)
AT (1) ATE115313T1 (enrdf_load_stackoverflow)
CH (1) CH676890A5 (enrdf_load_stackoverflow)
DE (1) DE58908728D1 (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2068509T3 (es) * 1990-06-01 1995-04-16 De La Rue Syst Metodo de deteccion de hojas en una pila.
US5221837A (en) * 1992-03-27 1993-06-22 Faraday National Corporation Non-contact envelope counter using distance measurement
US5428557A (en) * 1993-05-26 1995-06-27 Arco Heating & Air Conditioning Co. Sheet material coil counter
JP2589046B2 (ja) * 1993-11-01 1997-03-12 財団法人ダム水源地環境整備センター 魚数計測方法と装置および移動体計数方法
US5534690A (en) * 1995-01-19 1996-07-09 Goldenberg; Lior Methods and apparatus for counting thin stacked objects
DE19543634A1 (de) * 1995-11-23 1997-05-28 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zum Vereinzeln von Blattgut aus einem Stapel
US6212130B1 (en) * 1999-03-08 2001-04-03 Scan-Optics, Inc. Method and apparatus for plural document detection
US6167106A (en) * 1999-04-12 2000-12-26 Hyde Park Electronics, Inc. Apparatus and method for counting a series of progressively moving articles
DE19927865B4 (de) † 1999-05-07 2005-12-01 Leuze Electronic Gmbh & Co Kg Vorrichtung zur Detektion von Objekten
US6913259B2 (en) * 2003-01-27 2005-07-05 Daniel P. Phinney Apparatus for detection of multiple documents in a document transport
EP1953685B1 (de) * 2007-02-02 2010-04-07 Müller Martini Holding AG Vorrichtung zum Zählen von Druckprodukten eines Schuppenstromes
DE102010033993A1 (de) * 2010-08-11 2012-02-16 Giesecke & Devrient Gmbh Vorrichtung für die Überwachung des Transports von Blattgut
US8585050B2 (en) 2011-12-06 2013-11-19 Eastman Kodak Company Combined ultrasonic-based multifeed detection system and sound-based damage detection system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217491A (en) * 1978-06-29 1980-08-12 Nolan Systems Inc. Counting system for articles conveyed in a stream
US4296314A (en) * 1979-11-26 1981-10-20 Rockwell International Corporation Non-contact counter
SE433200B (sv) * 1980-06-04 1984-05-14 Dagens Nyheters Ab Sett och anordning for att rekna fiskfjellsartat lagda foremal
US4384195A (en) * 1980-06-09 1983-05-17 The Coe Manufacturing Company Edge-responsive apparatus for counting conveyor-transported articles
US4636949A (en) 1984-03-07 1987-01-13 Amf Incorporated Method and apparatus for controlling cooking cycles in a cooking system
GB8410943D0 (en) * 1984-04-28 1984-06-06 Quantity & Time Menagem Syst Object counting apparatus
JPH0814840B2 (ja) * 1986-03-27 1996-02-14 株式会社東京機械製作所 被搬送体計数装置

Also Published As

Publication number Publication date
EP0361071A3 (de) 1992-01-22
CH676890A5 (enrdf_load_stackoverflow) 1991-03-15
EP0361071A2 (de) 1990-04-04
JPH02156391A (ja) 1990-06-15
US5005192A (en) 1991-04-02
DE58908728D1 (de) 1995-01-19
ATE115313T1 (de) 1994-12-15

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