EP0408490A2 - Méthode et dispositif pour compter des produits imprimés - Google Patents

Méthode et dispositif pour compter des produits imprimés Download PDF

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Publication number
EP0408490A2
EP0408490A2 EP90810433A EP90810433A EP0408490A2 EP 0408490 A2 EP0408490 A2 EP 0408490A2 EP 90810433 A EP90810433 A EP 90810433A EP 90810433 A EP90810433 A EP 90810433A EP 0408490 A2 EP0408490 A2 EP 0408490A2
Authority
EP
European Patent Office
Prior art keywords
printed products
contact element
contact
printed
conveying direction
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
EP90810433A
Other languages
German (de)
English (en)
Other versions
EP0408490A3 (en
EP0408490B1 (fr
Inventor
Walter Reist
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.)
Ferag AG
Original Assignee
Ferag 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 Ferag AG filed Critical Ferag AG
Publication of EP0408490A2 publication Critical patent/EP0408490A2/fr
Publication of EP0408490A3 publication Critical patent/EP0408490A3/de
Application granted granted Critical
Publication of EP0408490B1 publication Critical patent/EP0408490B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 present invention relates to a method and a device according to the preambles of the independent claims.
  • the printed products in particular newspapers and magazines, coming from the rotary machine are fed to the further processing stations (for example, inserting devices of primary and main products, addressing and packaging stations, etc.) via suitable conveying means.
  • the further processing stations for example, inserting devices of primary and main products, addressing and packaging stations, etc.
  • suitable conveying means for example, inserting devices of primary and main products, addressing and packaging stations, etc.
  • the high conveying speed e.g.
  • Conventional mechanical counting devices generally have a protruding tongue, which experiences a certain deflection in each case through the upper edges of the printed products conveyed past and springs back into the rest position after passing the upper edge.
  • the number of deflection movements of this tongue is recorded by a counter.
  • the source of the error of such counting devices is, above all, that in the case of printed products which are provided with a pre-fold in order to ensure a precisely defined insertion of further printed products, individual printed products are often counted twice, since the tongue is separated by both the main and the Pre-fold is deflected.
  • optoelectronic counters are also known which, for example, use a laser beam to scan the product stream flowing past and are able to recognize the individual printed products on the basis of differences in contrast.
  • accuracy of such counters can be significantly affected by strong light-dark differences on the printed products (photos, etc.)
  • the high costs which often lead to the fact that not all strategically desirable places, are particularly important a counter can be installed.
  • the advantages of the present invention can essentially be seen in the fact that the counter is not based on a passive or static principle, but rather to a certain extent on an active or dynamic principle.
  • the concept is based on the idea that the counting element does not simply "react” as usual, but rather “acts”, which means that the counting element adapts to the varying conditions of the product flow on its own initiative and the accuracy is considerably increased.
  • the simplicity of the system also enables inexpensive designs.
  • FIGS. 1A, 1B, 1C illustrate the basic idea of the method according to the invention in a schematic manner.
  • the partially overlapping in the form of a shingled stream of printed products D are transported at the conveying speed v 1 in the indicated conveying direction, the illustration of the conveying means being dispensed with for the sake of clarity.
  • a contact element K which is shown in FIG. 1A in its initial position, is preferably moved parallel to the scale flow at a speed v2 which is higher than the conveying speed v1 and with the trailing edge (trailing fold) F k of the printed product D k in Brought into contact.
  • This contact is interpreted as a counting pulse by suitable means, which will be discussed in more detail in connection with the following figures, and registered by means of a counter (not shown) (FIG. 1B).
  • FIG. 1C shows the end position of the contact element K, which is offset by a distance H (stroke of the contact element) in the conveying direction with respect to the starting position (FIG. 1A). The contact element is then moved back to its starting position and the counting process starts again.
  • H stroke of the contact element
  • the method described above is an active counting method in which the contact element K is not stationary and is simply deflected by the printed products conveyed past, but rather by an independent movement is brought into suitable contact with the printed products.
  • the behavior of the contact element K must also be matched to this system cycle.
  • the distance S between two successive printed products is subject to certain statistical fluctuations, which also result in a significant source of error in conventional counting methods.
  • the dashed lines show schematically that the majority of the printed products D k , D k + 1 are within a range of ⁇ ⁇ S ( ⁇ S can be, for example, the standard deviation or mean quadratic variance) from the theoretical position (the relations are chosen at random).
  • ⁇ S can be, for example, the standard deviation or mean quadratic variance
  • the contact element K In order to ensure that the contact element K also detects a printed product D ′ k + 1 that is behind the theoretical position by ⁇ S, the contact element K must be controlled in such a way that its forward movement with respect to the normal position of the printed product is triggered with a corresponding delay.
  • the distance b In order for a given printed product to be caught by the contact element K, the distance b must be smaller than the stroke H: H ⁇ a / (1 - v1 / v2) (6)
  • the prak tables execution an average speed v2 of the contact element has proven, which corresponds essentially to twice the speed v1 of the product flow.
  • the stroke H corresponds essentially to the mean distance S of the products in the shingled stream.
  • FIG. 3A a further variant is shown in a schematic manner, the printed products being indicated for the sake of simplicity merely by their linear speed v 1.
  • the contact element K is moved on a non-linear (e.g. circular or elliptical) path 51 at the average speed v2.
  • This path can be open or also closed, so that in the second case the contact element K is not to be moved back in the same way, but can always be moved in the same direction and transferred to its starting position via a part of the path 51 not shown in the figure.
  • the time cycle of the movement of the contact element K is preferably coupled to the superordinate system cycle T such that the contact element K executes a complete revolution during such a system cycle T.
  • FIG 3B several identical contact elements, for example K1 to K4, are moved at regular intervals on a circular track 61, for example.
  • You will be at an angular velocity ⁇ fixed, substantially transverse to the conveying direction of the printed products axis of rotation 62 rotated.
  • the rotational speed ⁇ and the radius R of the path 61 are chosen so that the tangential speed v2 of the contact elements K1 to K4 in turn is higher than the conveying speed v1 and the individual contact elements K1 to K4 based on a fixed viewer in turn follow in the system cycle T. .
  • FIG. 4 first shows a simple arrangement for linearly driving the contact element K.
  • This is mounted, for example, on a linearly displaceably mounted slide 1, which is moved back and forth by a crank drive 2 operating in the system cycle.
  • the printed products D located, for example, on a rotating conveyor belt 3 are preferably stabilized by a pressure roller 4 arranged in the region of the contact element K. It has been shown in practical tests that the counting accuracy is improved if this pressure roller 4 is not positioned directly opposite the contact element K, but slightly offset from it.
  • the drive device shown only schematically in FIG. 4 is only to be regarded as a particularly simple one of many possible solutions.
  • the contact means (s) K move on a circular (open or closed) path, for example (see FIGS.
  • FIG. 5A shows a counting device according to the invention in a section along the conveying direction (indicated by an arrow)
  • FIG. 5B shows the same device from behind in a section transversely to the conveying direction.
  • the contact element is designed as a wedge-shaped shell 10 and slidably mounted on the carriage 1.
  • the former is displaced relative to the carriage 1 in the counter-conveying direction against the force of a return spring 12.
  • FIG. 5A shows the normal position of the contact element 10 in dashed lines and the contact element displaced on the slide in a solid line.
  • a microswitch 13 is actuated, the signal of which is led via a cable 14 to a counter (not shown) and registered there.
  • FIG. 5B shows how the carriage 1 is mounted on rails 11 arranged below the conveying means, while the wedge 10 projects into the plane of the printed products D.
  • the conveying means for the printed products can consist, for example, of two conveyor belts (not shown) arranged in parallel, so that the counting device can be arranged in the space between them.
  • FIGS. 6A and 6B show a further embodiment of the device according to the invention, in which the contact element is designed as a pawl 20 which is rotatably mounted on the slide 1 about an axis 25.
  • This embodiment has the particular advantage that there is no risk that the printed products will be displaced from their position in the scale flow by the contact element will.
  • the pawl 20 shown in FIG. 6A at the moment of first contact with the printed product D is deflected by the latter to such an extent that the printed product is able to slide over it without being displaced (FIG. 6B) when the carriage 1 is advanced relative to the printed product.
  • the deflected pawl 20 is pulled back into the rest position by a return spring 22.
  • the deflection of the pawl is registered in this embodiment by a light barrier arrangement: a light beam emitted by an optical transmitter-receiver element 23 is reflected back by the pawl 20 when it is in the rest position ( Figure 6A) is located, while reflection of the light beam is prevented when deflecting the pawl, which is guided as a counting pulse via a cable 24 to a counter (not shown).
  • the detector 23 can also be designed as a passive light-sensitive element which reacts to the light incident when the pawl is deflected.
  • the above-described variants of the device according to the invention merely represent preferred embodiments thereof and the invention is of course not limited to these.
  • the preferred embodiment with a counting device located below the scale flow was shown in the preceding figures. This corresponds to the preferred arrangement, since the trailing edges to be detected thereby rest on the conveying means and thus have a defined height.
  • the counting device it is entirely within the scope of the invention to arrange the counting device above the scale flow, for example if, in a specific case, the scale flow is formed by overlapping printed products.
  • the accuracy to record each printed product twice by moving the contact element with a correspondingly increased speed v2. It is also evident that by arranging these devices at a given point in the production process and coupling them accordingly to a common counter, either the accuracy can be increased by redundancy or the operating frequency of the individual devices can be reduced.
  • the method according to the invention can of course also be used in other cases.
  • the detection of printed products conveyed at irregular time intervals can also be realized with the method according to the invention by, for example, another element (for example a simple light barrier) for rough detection of the Undertakes print products and accordingly activates the contact element according to the invention at irregular time intervals.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
EP90810433A 1989-07-10 1990-06-14 Méthode et dispositif pour compter des produits imprimés Expired - Lifetime EP0408490B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH256089 1989-07-10
CH2560/89 1989-07-10

Publications (3)

Publication Number Publication Date
EP0408490A2 true EP0408490A2 (fr) 1991-01-16
EP0408490A3 EP0408490A3 (en) 1992-06-03
EP0408490B1 EP0408490B1 (fr) 1994-09-07

Family

ID=4236551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810433A Expired - Lifetime EP0408490B1 (fr) 1989-07-10 1990-06-14 Méthode et dispositif pour compter des produits imprimés

Country Status (4)

Country Link
US (1) US5084906A (fr)
EP (1) EP0408490B1 (fr)
JP (1) JP2868294B2 (fr)
DE (1) DE59007042D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035612A1 (fr) * 1997-12-30 1999-07-15 Ferag Ag Dispositif pour compter des objets achemines en une formation a recouvrement
WO1999035614A1 (fr) * 1997-12-30 1999-07-15 Ferag Ag Dispositif pour compter des produits achemines en une formation a recouvrement
WO1999035613A1 (fr) * 1997-12-30 1999-07-15 Ferag Ag Dispositif pour compter des objets plans
EP1018704A1 (fr) * 1999-01-05 2000-07-12 Ferag AG Dispositif de détection
CH691202A5 (fr) * 1999-01-04 2001-05-15 G & E Bouille Sa Fabrique De M Boîte de montre comprenant une parure placée annulairement.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112140721A (zh) * 2020-09-27 2020-12-29 湖北泰友纸业有限公司 一种瓦楞纸板印刷用印刷量自调节计数系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1841711A (en) * 1927-04-11 1932-01-19 Production Meter Company Counting and displacing apparatus
CH652993A5 (de) * 1981-11-10 1985-12-13 Ferag Ag Zaehleinrichtung zum zaehlen von laengs einer foerderbahn bewegten flaechigen erzeugnissen.
CH661810A5 (fr) * 1984-10-12 1987-08-14 Bobst Sa Dispositif pour le comptage d'objets plats disposes en nappe.

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035612A1 (fr) * 1997-12-30 1999-07-15 Ferag Ag Dispositif pour compter des objets achemines en une formation a recouvrement
WO1999035614A1 (fr) * 1997-12-30 1999-07-15 Ferag Ag Dispositif pour compter des produits achemines en une formation a recouvrement
WO1999035613A1 (fr) * 1997-12-30 1999-07-15 Ferag Ag Dispositif pour compter des objets plans
US6349125B1 (en) 1997-12-30 2002-02-19 Ferag Ag Apparatus for counting flat objects
US6359954B1 (en) 1997-12-30 2002-03-19 Ferag Ag Device for counting products conveyed as an overlapping arrangement
AU746281B2 (en) * 1997-12-30 2002-04-18 Ferag Ag Device for counting products conveyed as an overlapping arrangement
AU750749B2 (en) * 1997-12-30 2002-07-25 Ferag Ag Device for counting sheet-like objects
AU752796B2 (en) * 1997-12-30 2002-10-03 Ferag Ag Device for counting objects conveyed in an overlapping arrangement
CH691202A5 (fr) * 1999-01-04 2001-05-15 G & E Bouille Sa Fabrique De M Boîte de montre comprenant une parure placée annulairement.
EP1018704A1 (fr) * 1999-01-05 2000-07-12 Ferag AG Dispositif de détection
AU756306B2 (en) * 1999-01-05 2003-01-09 Ferag Ag Verifying device

Also Published As

Publication number Publication date
EP0408490A3 (en) 1992-06-03
JP2868294B2 (ja) 1999-03-10
JPH03115067A (ja) 1991-05-16
EP0408490B1 (fr) 1994-09-07
US5084906A (en) 1992-01-28
DE59007042D1 (de) 1994-10-13

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