EP2422972B2 - Dispositif d'inspection pivotant - Google Patents

Dispositif d'inspection pivotant Download PDF

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Publication number
EP2422972B2
EP2422972B2 EP11173908.2A EP11173908A EP2422972B2 EP 2422972 B2 EP2422972 B2 EP 2422972B2 EP 11173908 A EP11173908 A EP 11173908A EP 2422972 B2 EP2422972 B2 EP 2422972B2
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EP
European Patent Office
Prior art keywords
housing
control system
folding
light source
camera
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.)
Active
Application number
EP11173908.2A
Other languages
German (de)
English (en)
Other versions
EP2422972B1 (fr
EP2422972A1 (fr
Inventor
Dirk Bruns
Wolfgang Diehr
Uwe Hartstock
Frank Schmid
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.)
Masterwork Machinery Co Ltd
Original Assignee
Masterwork Machinery Co Ltd
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
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Application filed by Masterwork Machinery Co Ltd filed Critical Masterwork Machinery Co Ltd
Publication of EP2422972A1 publication Critical patent/EP2422972A1/fr
Publication of EP2422972B1 publication Critical patent/EP2422972B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • 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
    • B65H2301/542—Quality control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/25—Driving or guiding arrangements
    • B65H2404/254—Arrangement for varying the guiding or transport length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B65H2404/2613—Means for changing the transport path, e.g. deforming, lengthening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/42—Cameras

Definitions

  • the invention relates to an inspection device for flat, sheet-like material made of paper, cardboard or the like according to the preamble of claim 1.
  • control systems comprising at least one line scan camera and a corresponding lighting device.
  • the control device is arranged above and / or below the sheet transport plane.
  • Different systems are known for transporting the sheets past the control system.
  • transport systems which have two or more conveying means for transporting the sheets.
  • transport systems are known which have at least one upper conveyor belt and at least one lower conveyor belt, between which the sheets are transported trapped.
  • systems are known in which the sheets are transported by means of conveyor belts, which act together with a suction roll.
  • Other transport systems which can not be enumerated here, are known and can be combined in a corresponding arrangement with control systems to control the lower and / or upper side of a sheet.
  • the sheets are first printed wide web in a printing press. On the sheets, several benefits of the cartons to be produced are printed in each case, which are then punched out in a punch. The punched-out folding box blanks are then fed to a folding box gluing machine and processed here into folding boxes.
  • the individual processing stations have conveying means driven for transporting the folding box blanks. These consist, for example, each one arranged on the side of the machine upper and lower conveyor belt, the lower conveyor belt is guided in a roller cheek and the upper conveyor belt in a roller rail.
  • the conveyor belts are arranged transversely adjustable and can thus be adjusted to the respective folding carton blank format.
  • the blanks are transported printed side down between the top and bottom conveyor belts. From the DE 10 2004 022 344 A1 Such a folding box gluing machine is known.
  • the line scan camera Since the blanks are transported in the Faltschachtelklebemaschine with the printed side down from the transport device through the individual processing stations, the line scan camera must be located below the blank transport plane. Since the camera is to take a picture of the entire printed cut width, interfere with the lower continuous conveyor elements. From the DE 10 2005 050 040 A1 a device is known in which an inspection of a resting on a conveyor belt sheet on the back is possible. The camera is mounted in a gap of the conveyor belt below the sheet transport plane. For this purpose, the conveyor belt is placed over pulleys in a loop.
  • the problem with controlling the sheets is the recognition of different errors. For example, color smudges are easier to see when the light source is oriented perpendicular to the object to be inspected instead of obliquely. If the light source illuminates the object vertically, the contrast increases and color smear can be better detected. On the other hand, for example, scratches on the sheets can be better recognized if the light source is arranged obliquely to the inspecting object, because the scratches can be better recognized by the oblique illumination due to other reflective properties of the surface. The angle of the camera to the object as well as the angle between the camera and the light source influence the control possibilities of the errors to be examined.
  • a digital scanning device for decoding a digitally coded symbol comprising a light source having a plurality of individually controllable light elements for generating dark field illumination and additionally a bright field light source for providing bright field illumination.
  • the control of the light sources via a controller depending on the decoding quality of the symbol.
  • the solution shown is complex and not suitable for the processing of sheets with high transport speed.
  • an inspection device for flat sheet material is known with a control system comprising a camera and a light source.
  • the camera and the light source are mounted on a common holder and arranged transversely to the transport direction. In this way, the control device can be set to different blank formats.
  • the device has a control system in the form of an optical glass fiber sensor. Transmitter and receiver are independently adjustable in motor with respect to the monitoring angle to the surface to be controlled.
  • the inspection device has a control system, which consists of a camera, a light source and a housing. Arc-shaped material is passed by means of a transport device to the control system.
  • the control system is arranged below the transport device.
  • the camera angle with respect to the surface to be controlled of the sheet material and the angle of incidence of the rays of the light source on the sheet material via an adjustment of the camera and the light source or the transport device is changeable.
  • the inspection device can be adapted in a simple manner to different inspection requirements, so that errors of different types are easier to detect.
  • the light source is part of the housing.
  • the housing can be pivoted via a pivoting device. This allows a particularly simple adjustment of the camera angle and the illumination angle.
  • the control system is adjustably mounted transversely to the sheet or box transport direction.
  • the camera is mounted with housing, for example, on two round guides and can be adjusted in a known manner by means of a spindle transverse to the transport direction of the sheet or cartons.
  • several cameras can be arranged side by side and / or one behind the other in this way easily, whereby the inspection device can be adapted to different working widths and controls in a simple and cost-effective manner.
  • the housing of the camera is connected to a blown air connection, via which an air flow is conducted into the housing, which exits at the upper gap of the housing, which is slit-shaped.
  • the upper gap is formed either by the housing itself or from the composite of housing and light source by the upward air flow through the housing and the slot-shaped gap on the one hand, the sheet material, such as a box blank, pressed against the upper conveyor element, which significantly increases the smoothness of the carton blank in the area of the camera and thus makes the inspection possible even with high resolution.
  • the inspection device has a transport device which has at least one upper and one lower conveying device with contacting conveying means.
  • the lower conveyor is designed split and consists of at least two conveyors with a gap between these conveyors.
  • the control system is placed in the gap between these lower conveyors.
  • the upper conveyor can be carried out divided.
  • the gap between the two lower conveyors is variable in their distance. This can be achieved for example via telescopic lower belt conveyors. Thus, the gap can be adapted to different camera or housing dimensions or angular positions.
  • the inspection device is integrated into an already existing processing module.
  • the print image control system can also be integrated in a separate inspection module, which is then installed between two existing processing modules within the machine assembly of Faltschachtelklebemaschine. This increases the flexibility with respect to the place of use.
  • the inspection device can also be used as an off-line device, and thus be combined in an advantageous manner with the necessary for the specific application further modules such as feeder, discharge device and boom.
  • a sorting device is useful for the discharge device when it comes to the sorting of various products.
  • FIG. 1 shows by way of example individual processing stations a Faltschachtelklebemaschine.
  • the folding box gluing machine begins in FIG. 1, bottom right, with an insert 1, which withdraws the blanks to be processed at high speed from a stack in succession and supplies them individually to the subsequent processing station. Following the insert 1 is followed by an alignment station 4, in which the blanks are individually aligned against a lateral stop.
  • the alignment station is used to guide transversely positionable machine components in the form of two belt pairs, which serve as conveyor elements and can be transversely positioned via actuators.
  • transversely positionable machine components in the form of belt pairs guide the conveying elements, which are positioned transversely with an actuator depending on the type of blank.
  • the turning station 9 includes for rotating the blanks about a vertical axis by 90 ° two parallel juxtaposed conveyor lines whose speed is adjustable separately.
  • the blanks are on both conveyor lines, so that they are rotated at different speeds of the two conveyor lines.
  • the two conveyor lines contain driven rollers as conveying elements.
  • a further alignment station 10 which corresponds in its construction of the alignment station behind the insert 1. It thus again contains transversely positionable machine components in the form of pairs of conveyor belts as conveying elements.
  • the next processing station 13 serves to perform box-type dependent processing operations; For example, further score lines are pre-broken or special folds are performed. Also through the processing station 13 lead belt pairs as conveying elements that can be positioned transversely with actuators.
  • a folding station 14 in which the blank parts previously provided with an adhesive seam are folded over by 180 °.
  • the folding station 14 includes pairs of belts as conveying elements and an adhesive applicator, which can be moved by means of actuators in their dependent of the cutting type transverse position.
  • a transfer station 15 from which the folded blanks, provided with not yet set adhesive seams, are exactly aligned in all parts with the subsequent collecting and pressing device 16.
  • a shingled stream of folded blanks is first formed, which is subsequently held under pressure for some time between conveying press belts, so that the adhesive seams set.
  • the transfer station also contains pairs of belts which can be transversely adjusted by means of actuators.
  • FIG. 2 shows an example of a transport device 8, each with a left and right upper conveyor 3, 3 'and in each case a left and right lower conveyor 2.2', which is formed in the present example as a belt conveyor with corresponding conveyor belts as conveying means 5, 5 ', 12, 12'.
  • the conveyors 3, 3 ', 2, 2' are mounted on round trusses 11, so that they can be adjusted to the respective box cutting width.
  • FIG. 3 shows an inventive inspection device.
  • the sheet-like material 24 to be checked such as folding box blanks, is transported by the conveying module 30 in the conveying direction 25 by means of a transport device 20.
  • the transport device 20 has an upper conveyor 21 with an endless conveyor 23, which is guided around deflecting rollers, not shown.
  • two lower conveyors 22, 22 ' which form a gap with the distance width b to each other.
  • Both lower conveyors 22, 22 ' also have conveying means 23, which are guided around deflection rollers 26.
  • the roller 27 is connected to a drive, not shown, and thus serves as a drive roller 27 for the conveyor 23 of the lower conveyor.
  • the conveying means 23 in the present embodiment are designed as endless conveyor belts.
  • the upper conveyor is mounted in a known manner in a roller rail 29 and the lower conveyor in non-illustrated roller cheeks.
  • a control system 40 is mounted within the gap between the lower conveyors 22, 22 'such that the sheets transported across the gap can be tested from below by means of the control system 40.
  • the control system 40 comprises a camera 41, a light source 42 and a housing 43, wherein the light source 42 may be disposed either inside or outside the housing 43, and as in the present example is also part of the housing 43.
  • the housing 43 is provided with a blown air connection 44, via the blown air 45, which is guided, for example via a blower not shown in detail or even a side channel or roller compressor in the housing 43.
  • the blown air flows around the camera and possibly the light source and exits from a gap 46 at the upper end of the housing 43, which is preferably slit-shaped, from, strikes the sheet-like material and presses it against the upper conveyor means 23.
  • the smoothness of arcuate material in the control system positively influenced.
  • the gap between the conveying devices 22, 2 'points in the FIG. 3 the distance b on.
  • the lower conveyor devices are designed telescopically in a known manner, which is indicated by the arrows 31, 32.
  • the gap between the two lower conveying devices 22, 22 'is thus variable via the telescopic conveying devices, which results in FIG. 4 also by the changed distance width b 'is shown.
  • FIG. 3 is further shown that the housing 43 is connected via a flange 49 with a frame-fixed pivot bracket 50.
  • the pivot bracket 50 has a circular segment-shaped slot 51.
  • the pivot bracket 50 is pivotally connected, for example via a screw 48 to the lower part of the flange 49.
  • the upper part of the flange 49 is connected via a fastening element 47 with the pivot bracket 50.
  • the slot 51 allows the pivoting of the housing 43 by a pivot angle ⁇ .
  • the light source 42 is mounted outside of the housing 43 and forms part of the housing 43.
  • the two conveying devices 22, 22 ' have moved further apart via the telescopic devices (not shown) and form a gap with the distance b'.
  • This lighting is particularly well suited to inspect Braille cartons in the area under test. Due to the vertical lighting a shadow is avoided at the Braille points.
  • the angle between the light source and the camera in a manner not shown can also be adjusted against each other.
  • control system 40 can also be formed with other transport devices 20 to form an inspection module, as already explained above.
  • control system can of course also be used in other sheet-processing machines, such as in printing presses, folding machines or other finishing machines. It is also possible to use the control system as an inspection system in a separate offline facility for error control.

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  • Making Paper Articles (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Claims (4)

  1. Dispositif d'inspection pour un matériau plat en forme de feuille (24) en papier, carton ou similaire, en particulier des feuilles imprimées ou non imprimées, des découpes de boîtes pliantes ou des boîtes pliantes, comprenant un système de contrôle (40), qui se compose au moins d'une caméra (41), d'une source de lumière (42) et d'un coffret (43), dans lequel le matériau en forme de feuille (24) est guidé au moyen d'un dispositif de transport le long du système de contrôle (40), l'angle de la caméra (α) par rapport à la surface à contrôler du matériau en forme de feuille (24) et l'angle d'incidence (β) des rayons de la source de lumière (42) sur le matériau en forme de feuille (24) est modifiable par un déplacement de la caméra (41) et de la source de lumière (42) ou du dispositif de transport, et dans lequel le dispositif de transport présente au moins un dispositif de convoyage supérieur (21) et un dispositif de convoyage inférieur (22) comportant des moyens de convoyage (23) qui se touchent,
    caractérisé en ce que
    le système de contrôle (40) est disposé en dessous du dispositif de transport,
    la source de lumière (42) fait partie du coffret (43), le système de contrôle (40) est monté de façon déplaçable transversalement par rapport à la direction de transport des feuilles et des boîtes (25), et
    le dispositif de convoyage inférieur (22) est réalisé de façon divisée et se compose d'au moins deux dispositifs de convoyage (22, 22') avec un espace variable entre les dispositifs de convoyage, dans lequel le système de contrôle (40) est disposé de façon pivotante dans l'espace.
  2. Dispositif d'inspection selon la revendication 1, caractérisé en ce que le coffret (43) peut être basculé par l'intermédiaire d'un dispositif de basculement (49, 50, 51).
  3. Dispositif d'inspection selon l'une quelconque des revendications précédentes, caractérisé en ce que le coffret (43) est relié à un raccord d'air de soufflage (44), par l'intermédiaire duquel on amène dans le coffret (43) un courant d'air (45), qui sort par la fente supérieure (46) du coffret (43).
  4. Encolleuse de boîtes pliantes comportant un dispositif d'inspection selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'inspection est réalisé comme module séparé d'une encolleuse de boîtes pliantes dans un module d'inspection propre, qui est disposé entre deux modules de traitement, ou en ce que le dispositif d'inspection est intégré dans un module de traitement pour la fabrication de boîtes pliantes.
EP11173908.2A 2010-08-31 2011-07-14 Dispositif d'inspection pivotant Active EP2422972B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010036012 2010-08-31
DE102011012807A DE102011012807A1 (de) 2010-08-31 2011-03-02 Schwenkbare Inspektionsvorrichtung

Publications (3)

Publication Number Publication Date
EP2422972A1 EP2422972A1 (fr) 2012-02-29
EP2422972B1 EP2422972B1 (fr) 2013-09-11
EP2422972B2 true EP2422972B2 (fr) 2017-08-23

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ID=44719183

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Application Number Title Priority Date Filing Date
EP11173908.2A Active EP2422972B2 (fr) 2010-08-31 2011-07-14 Dispositif d'inspection pivotant

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EP (1) EP2422972B2 (fr)
DE (1) DE102011012807A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2422969B1 (fr) 2010-08-31 2013-09-11 Heidelberger Druckmaschinen AG Machine de collage de boîtes pliantes
DE102019105217A1 (de) * 2019-03-01 2020-09-03 Wilhelm Bahmüller Maschinenbau Präzisionswerkzeuge GmbH Faltmaschine für Faltschachtelzuschnitte und Verfahren zur Erfassung von Rillen und/oder Spalten eines Faltschachtelzuschnitts in Echtzeit
DE102020108611A1 (de) 2020-03-27 2021-09-30 Sig Technology Ag Verfahren zum Herstellen von Packstoffzuschnitten
CN118434657A (zh) * 2021-12-22 2024-08-02 鲍勃斯脱梅克斯股份有限公司 用于转换机的可调节的传送系统

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DE4321179A1 (de) † 1993-06-25 1995-01-05 Heidelberger Druckmasch Ag Verfahren und Einrichtung zur Steuerung oder Regelung von Betriebsvorgängen einer drucktechnischen Maschine
DE19604241A1 (de) † 1995-02-09 1996-08-14 Mitsubishi Heavy Ind Ltd Vorrichtung zum Prüfen der Druckgüte
DE102004021600A1 (de) † 2004-05-03 2005-12-08 Gretag-Macbeth Ag Vorrichtung zur Inline-Überwachung der Druckqualität bei Bogenoffsetdruckmaschinen
DE102008047265A1 (de) † 2008-09-12 2010-04-15 Heidelberger Druckmaschinen Ag Faltschachtelklebemaschine zur Herstellung von Faltschachteln aus Zuschnitten

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Publication number Priority date Publication date Assignee Title
DE4321179A1 (de) † 1993-06-25 1995-01-05 Heidelberger Druckmasch Ag Verfahren und Einrichtung zur Steuerung oder Regelung von Betriebsvorgängen einer drucktechnischen Maschine
DE19604241A1 (de) † 1995-02-09 1996-08-14 Mitsubishi Heavy Ind Ltd Vorrichtung zum Prüfen der Druckgüte
DE102004021600A1 (de) † 2004-05-03 2005-12-08 Gretag-Macbeth Ag Vorrichtung zur Inline-Überwachung der Druckqualität bei Bogenoffsetdruckmaschinen
DE102008047265A1 (de) † 2008-09-12 2010-04-15 Heidelberger Druckmaschinen Ag Faltschachtelklebemaschine zur Herstellung von Faltschachteln aus Zuschnitten

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Publication number Publication date
EP2422972B1 (fr) 2013-09-11
DE102011012807A1 (de) 2012-03-01
EP2422972A1 (fr) 2012-02-29

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