EP3221221A1 - Device for optically controlling a face of a blank - Google Patents

Device for optically controlling a face of a blank

Info

Publication number
EP3221221A1
EP3221221A1 EP15797861.0A EP15797861A EP3221221A1 EP 3221221 A1 EP3221221 A1 EP 3221221A1 EP 15797861 A EP15797861 A EP 15797861A EP 3221221 A1 EP3221221 A1 EP 3221221A1
Authority
EP
European Patent Office
Prior art keywords
box
suction
suction section
downstream
upstream
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
EP15797861.0A
Other languages
German (de)
French (fr)
Other versions
EP3221221B2 (en
EP3221221B1 (en
Inventor
Sacha Bourgeois
Dimitri Favini
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.)
Bobst Mex SA
Original Assignee
Bobst Mex SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=52016369&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3221221(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bobst Mex SA filed Critical Bobst Mex SA
Priority to PL15797861T priority Critical patent/PL3221221T3/en
Publication of EP3221221A1 publication Critical patent/EP3221221A1/en
Application granted granted Critical
Publication of EP3221221B1 publication Critical patent/EP3221221B1/en
Publication of EP3221221B2 publication Critical patent/EP3221221B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/126—Feeding carton blanks in flat or collapsed state
    • 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
    • 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
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/07—Feeding sheets or blanks by air pressure or suction
    • 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
    • B31B50/74—Auxiliary operations
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/006—Controlling; Regulating; Measuring; Safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/145—Feeding carton blanks from piles or magazines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/224—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/226—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction rollers
    • 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
    • B65H7/06—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 responsive to presence of faulty articles or incorrect separation or feed
    • 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
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • B31B2120/302—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing collapsible into a flat condition
    • 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
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/042—Feeding sheets or blanks using rolls, belts or chains
    • 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
    • B31B50/25—Surface scoring
    • 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
    • B31B50/26—Folding sheets, blanks or webs
    • 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
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B50/624—Applying glue on blanks
    • 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
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2220/00—Function indicators
    • B65H2220/01—Function indicators indicating an entity as a function of which control, adjustment or change is performed, i.e. input
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2220/00—Function indicators
    • B65H2220/03—Function indicators indicating an entity which is measured, estimated, evaluated, calculated or determined but which does not constitute an entity which is adjusted or changed by the control process per se
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4473—Belts, endless moving elements on which the material is in surface contact
    • B65H2301/44734—Belts, endless moving elements on which the material is in surface contact overhead, i.e. hanging material ba attraction forces, e.g. suction, magnetic forces
    • 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
    • B65H2404/255—Arrangement for tensioning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/32—Suction belts
    • B65H2406/323—Overhead suction belt, i.e. holding material against gravity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/363—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum for a plurality of suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/40—Identification
    • B65H2511/413—Identification of image
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/52—Defective operating conditions
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/111—Plane geometry, contour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1764—Cut-out, single-layer, e.g. flat blanks for boxes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

A device (10) for optically controlling a face (13) of a blank (12), comprises a vacuum conveyor (20) capable of transporting the blank (12) along a path of travel (15) and comprising a conveyor belt (22) having an apertured structure of which the conveying path follows the path of travel (15) of the blank (12), and suction means (40) that are suitable for pressing the blank (12) against the conveyor belt (14), and inspection means (30) for inspecting the face (13) of the blank (12) during the transportation of same by the vacuum conveyor (20), located on the side opposite the vacuum conveyor (20). The suction means (40) delimit three separate successive suction sections (41, 42, 43) along the path of travel (15), including a central suction section (42) that extends opposite the inspection means (30), an upstream suction section (41) and a downstream suction section (43).

Description

DISPOSITIF DE CONTRÔLE OPTIQUE D'UNE FACE D'UNE DÉCOUPE  DEVICE FOR OPTICALLY CONTROLLING A FACE OF CUTTING
La présente invention concerne le domaine de la fabrication d'emballages, et notamment d'emballages fabriqués à partir de feuilles ou de bandes prédécoupées, notamment des découpes de papier, de plastique ou de carton, qu'il soit plat, ondulé ou mixte. De façon non exclusive, la présente invention est utilisée dans le domaine de la fabrication des boîtes pliantes. Plus précisément, la présente invention concerne un dispositif permettant de contrôler la qualité de découpes circulant dans une machine de traitement telle qu'une machine plieuse colleuse. The present invention relates to the field of the manufacture of packaging, including packaging made from sheets or strips precut, including paper cuts, plastic or cardboard, whether flat, corrugated or mixed. Non-exclusively, the present invention is used in the field of manufacturing folding boxes. More specifically, the present invention relates to a device for controlling the quality of blanks circulating in a processing machine such as a folder-gluing machine.
Dans l'industrie de l'emballage, la fabrication des boîtes pliantes s'effectue traditionnellement en ligne, en pliant et en collant des découpes au moyen de machines communément appelées plieuses-colleuses. A cet égard, il est connu de contrôler la qualité des découpes au sein même de la plieuse-colleuse. Pour cela un module spécifique est utilisé et est directement intégré dans la plieuse-colleuse. Ce module est en mesure d'inspecter individuellement chaque découpe lorsque cette dernière passe à travers le module. Comme le déplacement des découpes s'accomplit faces imprimées tournées vers le bas au sein de la plieuse-colleuse, leur transport à travers le module de contrôle est réalisé en les maintenant par le dessus, tandis que leur inspection s'effectue par le dessous.  In the packaging industry, the manufacture of folding boxes is traditionally done online, by folding and gluing cuts by means of machines commonly called folder-gluers. In this respect, it is known to control the quality of the cuts within the folder-gluer. For this a specific module is used and is directly integrated into the folder-gluer. This module is able to inspect each cut individually as it passes through the module. As the displacement of the cuts is accomplished with the printed faces turned down in the folder-gluer, their transport through the control module is achieved by holding them from above, while their inspection is carried out from below.
En pratique, le transport par le dessus des découpes s'opère en utilisant un convoyeur vacuum qui associe une pluralité de bandes transporteuses à un caisson vacuum positionné directement au-dessus, chaque découpe est ainsi maintenue par le dessus au niveau de sa face interne, de sorte que sa face imprimée, qui est tournée vers le bas, se trouve entièrement dégagée. L'inspection par le dessous est quant à elle menée au moyen d'une caméra qui est implantée sous le convoyeur vacuum, et qui fonctionne en contre-plongée. Associé à un système d'éclairage adéquat, la caméra effectue une prise de vue de chaque face imprimée au fur et à mesure que les découpes défilent.  In practice, the transport from above of the cuts takes place using a vacuum conveyor which associates a plurality of conveyor belts to a vacuum box positioned directly above, each cutout is thus maintained from above at its internal face, so that its printed face, which is turned downwards, is entirely unobstructed. The bottom inspection is carried out by means of a camera which is located under the vacuum conveyor, and which operates against the surface. Associated with a suitable lighting system, the camera shoots each printed side as the cuts scroll.
Etat de la technique State of the art
Le document EP 2578521 peut être cité comme décrivant des machines de l'art antérieur réalisant un tel contrôle. Dans ce cas, le chemin de circulation de la découpe passe dans un tronçon avec un élément d'arrière-plan qui améliore le contrôle du contour et qui se situe entre deux tronçons distinct et légèrement espacés du chemin de circulation, munis chacun d'un caisson dans lequel est générée une dépression pour maintenir la découpe plaquée par sa face supérieure contre une bande transporteuse, tandis que sa face inférieure imprimée est contrôlée. De cette façon, non seulement des défauts présents à l'intérieur de la découpe, mais également des défauts des défauts présents sur le contour de la découpe sont en mesure d'être détectés. Les défauts sont définis à titre d'exemple comme étant notamment respectivement des erreurs d'impression dans le texte, les couleurs, le registre des couleurs, etc., des erreurs d'embossage, d'autres défauts d'aspect, tels que des trous, des cassures, des déchirures, etc., des erreurs de découpe, des taches d'huile, et d'autres encore. EP 2578521 may be cited as describing machines of the prior art performing such a control. In this case, the flow path of the cut passes into a section with a background element that improves contour control. and which is located between two separate sections and slightly spaced from the circulation path, each provided with a box in which a depression is generated to maintain the cutting plate on its upper face against a conveyor belt, while its printed lower face is controlled . In this way, not only defects present inside the cut, but also defects defects present on the contour of the cut are able to be detected. The defects are defined by way of example as, in particular, errors of printing in the text, colors, color register, etc., embossing errors, other appearance defects, such as holes, breaks, tears, etc., cutting errors, oil stains, and more.
Cependant, cette technique apporte une instabilité de position de la découpe du fait que dans la zone de l'élément d'arrière-plan, d'étendue certes très inférieure à la longueur de la découpe, cette dernière n'est pas maintenue par aspiration. En effet, au cours de l'avancée de la découpe depuis la section amont du convoyeur vacuum vers la section aval du convoyeur vacuum, la découpe est en porte-à-faux lorsque son bord avant puis son bord arrière n'est plus aspiré.  However, this technique provides a positional instability of the cutout because in the area of the background element, although certainly much smaller than the length of the cutout, the latter is not maintained by suction . Indeed, during the advance of cutting from the upstream section of the vacuum conveyor to the downstream section of the vacuum conveyor, the cut is cantilever when its front edge and then its trailing edge is no longer sucked.
Bref résumé de l'invention Brief summary of the invention
Un but de la présente invention est de proposer un dispositif de contrôle amélioré qui assure une position stable de la découpe lorsqu'elle passe devant les moyens d'inspection et de contrôle de sa surface.  An object of the present invention is to provide an improved control device which ensures a stable position of the blank when it passes the means of inspection and control of its surface.
Selon l'invention, ces buts sont atteints notamment au moyen d'un dispositif de contrôle optique d'une face d'une découpe, comprenant: According to the invention, these objects are achieved in particular by means of an optical control device of a face of a blank, comprising:
un convoyeur vacuum, qui est apte à transporter la découpe le long d'un chemin de circulation, et le convoyeur vacuum comportant  a vacuum conveyor, which is able to transport the cut along a circulation path, and the vacuum conveyor comprising
une bande transporteuse, ayant une structure ajourée dont le trajet de défilement suit le chemin de circulation de la découpe, et  a conveyor belt, having a perforated structure whose travel path follows the circulation path of the cut, and
des moyens d'aspiration, qui sont aptes à plaquer la découpe contre la bande transporteuse, et  suction means, which are capable of pressing the blank against the conveyor belt, and
des moyens pour inspecter la face de la découpe au cours de son transport par le convoyeur vacuum, les moyens pour inspecter étant situés du côté opposé au convoyeur vacuum,  means for inspecting the face of the blank during its transport by the vacuum conveyor, the means for inspecting being situated on the opposite side to the vacuum conveyor,
Le dispositif de contrôle optique est caractérisé en ce que les moyens d'aspiration délimitent trois tronçons d'aspiration distincts successifs le long du chemin de circulation, parmi lesquels un tronçon d'aspiration central qui s'étend en regard des moyens d'inspection, un tronçon d'aspiration amont et un tronçon d'aspiration aval. The optical control device is characterized in that the suction means delimit three successive distinct suction sections along the circulation path, including a central suction section which extends opposite the inspection means, an upstream suction section and a downstream suction section.
Un tel dispositif permet de réguler la dépression permettant d'aspirer et de retenir la découpe contre bande transporteuse au niveau du tronçon d'aspiration central et donc au niveau des moyens d'inspection. Ainsi, l'intensité de dépression la plus adaptée peut être choisie pour stabiliser la découpe en vue de son contrôle par les moyens d'inspection. Such a device makes it possible to regulate the vacuum allowing the conveyor belt blank to be sucked and retained at the level of the central suction section and therefore at the level of the inspection means. Thus, the most appropriate vacuum intensity can be chosen to stabilize the cut for inspection by the inspection means.
Selon une disposition avantageuse, le dispositif de contrôle comprend en outre, en regard des moyens d'inspection, des moyens de mise en tension de la bande transporteuse. De cette façon, la tenue et la rigidité de la bande sont améliorées en regard des moyens d'inspection, ce qui empêche des mouvements et/ou changements d'orientation de la découpe lorsqu'elle passe devant les moyens d'inspection. En particulier, ces moyens de mise en tension peuvent être agencés pour garantir une planéité de la bande transporteuse afin que la position de la découpe sur la bande permette un contrôle optique optimal, grâce à une orientation maîtrisée et constante de la découpe par rapport d'une part au système d'éclairage et d'autre part à la caméra.  According to an advantageous arrangement, the control device further comprises, facing the inspection means, means for tensioning the conveyor belt. In this way, the strength and rigidity of the strip are improved with respect to the inspection means, which prevents movements and / or changes in orientation of the cut as it passes the inspection means. In particular, these tensioning means can be arranged to ensure a flatness of the conveyor belt so that the position of the cut on the strip allows optimal optical control, thanks to a controlled and constant orientation of the cut with respect to one part to the lighting system and the other to the camera.
Par ailleurs, l'invention peut être mise en œuvre quelle que soit la direction de déplacement des découpes, en adaptant en conséquence l'agencement de la bande transporteuse, des moyens d'inspection et des moyens d'aspiration, le long du chemin de circulation des découpes.  Furthermore, the invention can be implemented regardless of the direction of displacement of the blanks, adapting accordingly the arrangement of the conveyor belt, inspection means and suction means, along the path of circulation of cuts.
Ainsi, un tel dispositif de contrôle peut se faire pendant le déplacement de chaque découpe qui est réalisé avec la face imprimée tournée vers le bas, par exemple en maintenant la découpe par le dessus, tandis que l'inspection de la face imprimée s'effectue par le dessous.  Thus, such a control device can be done during the displacement of each cut that is made with the printed side facing downwards, for example by keeping the cutout from above, while the inspection of the printed face is carried out from below.
Selon une autre possibilité, il est possible d'agencer le dispositif de contrôle selon l'invention de manière à ce que chaque découpe se déplace via la bande transporteuse avec sa face imprimée orientée vers le haut, de sorte que l'inspection s'effectue par le dessus, et par exemple le maintien de la découpe s'effectue par le dessous.  According to another possibility, it is possible to arrange the control device according to the invention so that each cutout moves via the conveyor belt with its printed face facing upwards, so that the inspection takes place from above, and for example the maintenance of the cut is carried out from below.
Le dispositif de contrôle est également possible dans le cas où le déplacement des découpes est réalisé dans un plan sensiblement vertical.  The control device is also possible in the case where the displacement of the cuts is made in a substantially vertical plane.
La présente invention se rapporte également à une machine de traitement, et en particulier à une machine plieuse-colleuse, équipée d'un dispositif de correction tel que décrit dans le présent texte. Brève description des figures The present invention also relates to a processing machine, and in particular to a folder-gluer machine, equipped with a correction device as described in the present text. Brief description of the figures
Des exemples de mise en œuvre de l'invention sont indiqués dans la description illustrée par les figures annexées dans lesquelles:  Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:
- la Figure 1 représente de manière schématique une plieuse-colleuse dans laquelle est intégré un dispositif de contrôle conforme à l'invention; et  - Figure 1 shows schematically a folder-gluer in which is integrated a control device according to the invention; and
- la Figure 2 est une vue en coupe longitudinale du dispositif de contrôle selon l'invention.  - Figure 2 is a longitudinal sectional view of the control device according to the invention.
Exemples de mode de réalisation Examples of embodiment
La Fig. 1 représente une machine plieuse-colleuse 100, c'est-à-dire une machine de traitement qui est chargée de plier et de coller des découpes en vue de fabriquer des boîtes pliantes. Dotée d'une structure modulaire, cette plieuse-colleuse 100 est classiquement composée, d'amont en aval, d'un module margeur 1 10 ou table de marge, d'un module d'alignement 120, d'un module d'embossage 130, notamment pour du braille, d'un module de précassage des plis 140, d'un module d'encollage 150, d'un module de pliage 160, d'un module de transfert 170 et d'un module de réception 180. Les découpes se déplacent de l'amont vers l'aval d'un module à l'autre dans la machine plieuse-colleuse 100, selon la direction longitudinale (sens de la Flèche A visible sur les Figs. 1 et 2).  Fig. 1 shows a folder-gluer machine 100, i.e., a processing machine that is responsible for folding and pasting blanks to make folding boxes. With a modular structure, this folder-gluer 100 is conventionally composed, from upstream to downstream, of a feeder module 1 10 or margin table, an alignment module 120, an embossing module 130, in particular for braille, a pleat pre-fold module 140, a gluing module 150, a folding module 160, a transfer module 170 and a receiving module 180. The cuts move from upstream to downstream from one module to another in the folder-gluer machine 100, in the longitudinal direction (direction of the arrow A visible in Figs 1 and 2).
La plieuse-colleuse 100 est en outre pourvue d'un dispositif de contrôle 10 qui est intégré directement entre le module d'alignement 120 et le module d'embossage 130. Ce dispositif de contrôle 10 est destiné à réaliser un contrôle qualité en ligne au sein même de la plieuse-colleuse 100, en inspectant de manière systématique toutes les découpes 12 qui y circulent avec leur face imprimée 13 tournées vers le bas (face inférieure), et leur face interne 14, non imprimée, orientée vers le haut (face supérieure).  The folder-gluer 100 is further provided with a control device 10 which is integrated directly between the alignment module 120 and the embossing module 130. This control device 10 is intended to perform an online quality control at same within the folder-gluer 100, by systematically inspecting all the cutouts 12 which circulate with their printed face 13 facing downwards (lower face), and their inner face 14, not printed, facing upwards (face higher).
Le dispositif de contrôle 10 (voir Fig. 2) comprend un convoyeur vacuum 20. Le convoyeur 20 comprend tout d'abord une bande transporteuse 22, qui est chargée de convoyer de façon continue chaque découpe 12. Chaque découpe 12 est convoyée en étant maintenue par le dessus au niveau de sa face supérieure 14, destinée à constituer la face interne d'une boîte, le long d'un chemin de circulation donné 15. Cette bande transporteuse 22 est mise en mouvement par le moteur 23 selon une boucle sans fin.  The control device 10 (see Fig. 2) comprises a vacuum conveyor 20. The conveyor 20 first comprises a conveyor belt 22, which is in charge of continuously conveying each cutout 12. Each cutout 12 is conveyed while being maintained from above at its upper face 14, intended to form the inner face of a box, along a given travel path 15. This conveyor belt 22 is set in motion by the motor 23 in an endless loop .
Le plus souvent, la face inférieure 13 de la découpe 12 à inspecter est pourvue de signes, qu'ils soient en relief, des creux et/ou des bosses, et/ou imprimés avec des textes, des images, etc. et de manière générale tout type de symboles. Le dispositif de contrôle 10 présente également des moyens d'inspection 30 permettant d'inspecter par le dessous la face inférieure 1 3 de chaque découpe 12 au cours de son transport le long du chemin de circulation 1 5 qui traverse de part en part le dispositif de contrôle 10, de la droite vers la gauche sur la Fig. 2. Les moyens d'inspection 30 comportent notamment une caméra 32 et un système d'éclairage 31 orientés et convergeant (cf. traits tillés en Fig. 2) vers une même zone de contrôle 33. La zone de contrôle 33 peut par exemple se présenter sous la forme d'une ligne transversale ou d'un rectangle allongé transversalement situé au niveau du chemin de circulation 15. Most often, the lower face 13 of the blank 12 to be inspected is provided with signs, whether in relief, hollows and / or bumps, and / or printed with texts, images, etc. and in general all types of symbols. The control device 10 also has inspection means 30 making it possible to inspect by below the lower face 1 3 of each blank 12 during its transport along the flow path 1 5 which passes right through to the control device 10, from right to left in FIG. 2. The inspection means 30 include in particular a camera 32 and a lighting system 31 oriented and converging (see lines tapered in Fig. 2) to the same control zone 33. The control zone 33 can for example be present in the form of a transverse line or elongated rectangle transversely located at the level of the circulation path 15.
Ainsi, lors de son avancée continue dans le dispositif de contrôle 1 0, la découpe est retenue par la bande transporteuse 22 le long du chemin de circulation 15 qui suit le tronçon inférieur sensiblement horizontal et plan de la bande transporteuse 22. Plus précisément la découpe 1 2 est retenue par aspiration contre la face inférieure de la bande transporteuse 22 au moyen des moyens d'aspiration 40 disposés au-dessus de la bande transporteuse 22 le long du chemin de circulation 15 de la découpe 1 2.  Thus, during its continuous advance in the control device 1 0, the cut is retained by the conveyor belt 22 along the circulation path 15 which follows the substantially horizontal and flat lower section of the conveyor belt 22. 1 2 is retained by suction against the underside of the conveyor belt 22 by means of the suction means 40 disposed above the conveyor belt 22 along the circulation path 15 of the blank 1 2.
Conformément à l'objet de la présente invention, la bande transporteuse 22 est opérante au niveau de trois tronçons distincts 41 , 42 et 43 du chemin de circulation 15, traversés successivement par la découpe 12. Un tronçon d'aspiration amont 41 , est suivie par un tronçon d'aspiration central 42, qui s'étend en regard des moyens d'inspection 30, et qui est suivi par un tronçon d'aspiration aval 43. De cette façon, lors du contrôle, la découpe 12 se trouve parfaitement plaquée contre la bande transporteuse 22 entre les moyens d'inspection 30 et la bande transporteuse 22.  According to the object of the present invention, the conveyor belt 22 is operative at three distinct sections 41, 42 and 43 of the circulation path 15, traversed successively by the cutout 12. An upstream suction section 41, is followed by a central suction section 42, which extends opposite the inspection means 30, and which is followed by a downstream suction section 43. In this way, during the inspection, the cutout 12 is perfectly plated. against the conveyor belt 22 between the inspection means 30 and the conveyor belt 22.
Chacun des tronçons, le tronçon d'aspiration central 42, le tronçon d'aspiration amont 41 et le tronçon d'aspiration aval 43, comporte un caisson dans lequel est générée une dépression (Flèches V en Fig. 2). Plus précisément, un caisson amont 41 a, un caisson central 42a et un caisson aval 43a, sont respectivement alignés selon la direction d'avancement A. Les caissons 41 a, 42a et 43a sont situés au-dessus et en arrière de la bande transporteuse 22, elle-même située au-dessus et en arrière de la découpe 1 2, qui est elle-même située au-dessus et en arrière des moyens d'inspection 30, lors du contrôle visuelle de sa face inférieure 1 3 imprimée et/ou portant des reliefs.  Each of the sections, the central suction section 42, the upstream suction section 41 and the downstream suction section 43, comprises a box in which a vacuum is generated (arrows V in Fig. 2). More specifically, an upstream box 41a, a central box 42a and a downstream box 43a, are respectively aligned in the direction of advance A. The boxes 41a, 42a and 43a are located above and behind the conveyor belt 22, itself located above and behind the cutout 1 2, which is itself located above and behind the inspection means 30, during the visual control of its underside 1 3 printed and / or bearing reliefs.
La bande transporteuse 22 est maintenue plane et continue sur toute la surface inférieure s'étendant le long du chemin de circulation 1 5 des tronçons distincts 41 , 42 et The conveyor belt 22 is kept flat and continuous over the entire lower surface extending along the circulation path 15 of the separate sections 41, 42 and 42.
43 et des caissons 41 a, 42a et 43a. Le caisson d'aspiration central 42a comprend au moins une ouverture d'aspiration, la ou les ouvertures débouchant directement au niveau de la zone de contrôle 33. 43 and caissons 41a, 42a and 43a. The central suction box 42a comprises at least one suction opening, the opening or openings opening directly at the control zone 33.
Selon un mode de réalisation non représenté, chaque caisson 41 a, 42a et 43a peut communiquer avec une pompe à dépression. Cette solution avec une pompe d'aspiration individuelle pour le caisson amont 41 a, le caisson central 42a et le caisson aval 43a n'est pas toujours possible, notamment pour des raisons d'encombrement. De plus la présence de trois pompes à dépression présente un coût important. According to an embodiment not shown, each box 41a, 42a and 43a can communicate with a vacuum pump. This solution with an individual suction pump for the upstream box 41a, the central box 42a and the box downstream 43a is not always possible, especially for reasons of space. In addition, the presence of three vacuum pumps has a significant cost.
Le convoyeur vacuum 20 comporte une première pompe à dépression 44 et une deuxième pompe à dépression 45. La première pompe à dépression 44 est couplée et communique avec le caisson d'aspiration amont 41 a du tronçon d'aspiration amont 41 . La deuxième pompe à dépression 45 est couplée et communique à la fois avec le caisson central 42a du tronçon d'aspiration central 42 avec le caisson aval 43a du tronçon d'aspiration aval 43. A la sortie de la deuxième pompe à dépression 45 l'air sous dépression se partage entre le caisson central 42, servant au maintien d'un tronçon de la bande 22 faisant face aux moyens d'inspection 30, et le caisson aval 43, servant au maintien du tronçon de la bande 22 situés en aval des moyens d'inspection 30.  The vacuum conveyor 20 comprises a first vacuum pump 44 and a second vacuum pump 45. The first vacuum pump 44 is coupled and communicates with the upstream suction box 41a of the upstream suction section 41. The second vacuum pump 45 is coupled and communicates with both the central box 42a of the central suction section 42 with the downstream box 43a of the downstream suction section 43. At the outlet of the second vacuum pump 45 air under vacuum is shared between the central box 42, serving to maintain a section of the strip 22 facing the inspection means 30, and the downstream box 43, for maintaining the section of the strip 22 located downstream of the means of inspection 30.
Ce partage de l'aspiration fournie par la deuxième pompe à dépression 45 peut s'effectuer selon une répartition choisie en fonctions des données et dimensions du dispositif de contrôle 1 0, et notamment du volume du caisson central 42a et du caisson aval 43a. Par exemple, moins de la moitié de la section de sortie de la deuxième pompe à dépression 45 est couplée au caisson central 42a du tronçon d'aspiration central 42. Selon un autre agencement possible, moins de un tiers moins de la section de sortie de la deuxième pompe à dépression 45 est couplée au caisson central 42a du tronçon d'aspiration central 42. Selon une disposition préférentielle telle que représentée sur la Fig. 2, de l'ordre de un tiers de la section de sortie de la deuxième pompe à dépression 45 est couplée au caisson central 42a du tronçon d'aspiration central 42. Dans ce cas, le caisson central 42a et le caisson aval 43a représentent respectivement de l'ordre de 5% et 95% du volume total formé par le caisson central 42a et le caisson aval 43a.  This sharing of the suction provided by the second vacuum pump 45 can be performed according to a distribution chosen according to the data and dimensions of the control device 1 0, and in particular the volume of the central box 42a and the downstream box 43a. For example, less than half of the output section of the second vacuum pump 45 is coupled to the central box 42a of the central suction section 42. In another possible arrangement, less than one-third less than the exit section of the the second vacuum pump 45 is coupled to the central box 42a of the central suction section 42. In a preferred arrangement as shown in FIG. 2, of the order of one third of the outlet section of the second vacuum pump 45 is coupled to the central box 42a of the central suction section 42. In this case, the central box 42a and the downstream box 43a respectively represent of the order of 5% and 95% of the total volume formed by the central box 42a and the downstream box 43a.
Selon une disposition avantageuse, au moins un parmi le caisson amont 41 a, le caisson central 42a et le caisson aval 43a présente un volume d'aspiration réglable. According to an advantageous arrangement, at least one of the upstream box 41a, the central box 42a and the downstream box 43a has an adjustable suction volume.
Selon une disposition préférentielle telle que représentée sur la Fig. 2, le caisson amont 41 a et le caisson aval 43a présentent un volume modifiable. Une telle modularité s'obtient par exemple en compartimentant les caissons amont 41 a et aval 43a, avec des parois internes et en équipant les caissons amont 41 a et aval 43a avec un volet mobile à l'entrée de chaque compartiment, qui peut être ouvert ou fermé à volonté. En alternative, comme dans le cas de la Fig. 2, ce sont les panneaux latéraux du caisson amont 41 a (aval 43a) qui s'étendent selon la direction d'avancement A, qui sont coulissants afin de pouvoir élargir ou rétrécir la largeur du caisson amont 41 a (aval 43a). In a preferred arrangement as shown in FIG. 2, the upstream box 41a and the downstream box 43a have an editable volume. Such modularity is obtained for example by compartmentalizing the upstream 41a and downstream 43a caissons, with internal walls and by equipping the upstream 41a and downstream 43a caissons with a movable flap at the entrance of each compartment, which can be opened or closed at will. Alternatively, as in the case of FIG. 2, it is the side panels of the upstream box 41a (downstream 43a) which extend in the direction of advance A, which are slidable in order to expand or shrink the width of the upstream box 41a (downstream 43a).
De façon classique, le caisson amont 41 a et le caisson aval 43a comprennent une paroi ajourée inférieure, s'étendant le long du chemin de circulation 15 la bande transporteuse 22 présente une structure perforée, qui est apte à glisser contre chaque paroi ajourée. La bande 22 recouvre au moins partiellement la largeur de chaque paroi ajourée du caisson amont 41 a et du caisson aval 43a. Selon une disposition préférentielle, la bande 22 recouvre sensiblement complètement la largeur de chaque paroi ajourée du caisson amont 41 a et du caisson aval 43a. La section de sortie du caisson central 42a est de faible amplitude, et n'est pas équipée avec une paroi ajourée. Conventionally, the upstream box 41a and the downstream box 43a comprise a lower perforated wall, extending along the circulation path 15 the conveyor belt 22 has a perforated structure, which is able to slide against each perforated wall. The strip 22 covers at least partially the width of each perforated wall of the upstream box 41a and the downstream box 43a. In a preferred arrangement, the strip 22 substantially completely covers the width of each perforated wall of the upstream box 41a and the downstream box 43a. The outlet section of the central box 42a is of low amplitude, and is not equipped with a perforated wall.
Le convoyeur vacuum 20 comprend des moyens de mise en tension 50 de la bande 22, assurant une rigidité locale de la bande 22. Ces moyens de mise en tension 50 comportent une paire de galets 51 et 52 écartés le long du chemin de circulation 1 5. Plus précisément, chaque galet amont 51 et chaque galet aval 52 est disposé au-dessus de la bande transporteuse 22. Le vacuum généré par le caisson central 42a va plaquer la bande 22 au niveau et contre ces galets fixes 51 et 52, ce qui va garantir une surface d'inspection plane.  The vacuum conveyor 20 comprises tensioning means 50 of the band 22, ensuring a local rigidity of the band 22. These tensioning means 50 comprise a pair of rollers 51 and 52 spaced along the circulation path 1 5 More specifically, each upstream roller 51 and each downstream roller 52 is disposed above the conveyor belt 22. The vacuum generated by the central box 42a will press the strip 22 at and against these fixed rollers 51 and 52, which will guarantee a flat inspection surface.
Ainsi, les galets 51 et 52 sont situés le long du tronçon d'aspiration central 42. Par ailleurs, de préférence, les galets 51 et 52 délimitent respectivement la position amont et la position aval du tronçon d'aspiration central 43. Concrètement la sortie du caisson central 43a s'étend le long de la direction d'avancement A entre les galets 51 et 52. Par exemple, les galets 51 et 52 sont espacés l'un de l'autre le long de la direction d'avancement A d'une distance de l'ordre de 30mm, et de préférence entre 20mm et 50mm.  Thus, the rollers 51 and 52 are situated along the central suction section 42. Furthermore, preferably, the rollers 51 and 52 respectively delimit the upstream position and the downstream position of the central suction section 43. the central box 43a extends along the direction of advance A between the rollers 51 and 52. For example, the rollers 51 and 52 are spaced from each other along the direction of advance A d a distance of the order of 30 mm, and preferably between 20 mm and 50 mm.
La présente invention n'est pas limitée aux modes de réalisation décrits et illustrés. De nombreuses modifications peuvent être réalisées, sans pour autant sortir du cadre défini par la portée du jeu de revendications. The present invention is not limited to the embodiments described and illustrated. Many modifications can be made, without departing from the scope defined by the scope of the set of claims.

Claims

Revendications claims
1 . Dispositif de contrôle optique (10) d'une face (13) d'une découpe (12), comprenant: 1. An optical control device (10) for a face (13) of a cutout (12), comprising:
- un convoyeur vacuum (20) apte à transporter la découpe (12) le long d'un chemin de circulation (15) et comportant  a vacuum conveyor (20) capable of transporting the cutout (12) along a circulation path (15) and comprising
une bande transporteuse (22) de structure ajourée dont le trajet de défilement suit le chemin de circulation (15) de la découpe (12), et des moyens d'aspiration (40) qui sont aptes à plaquer la découpe (12) contre la bande transporteuse (14), et  a conveyor belt (22) of perforated structure whose travel path follows the circulation path (15) of the cutout (12), and suction means (40) which are able to press the cutout (12) against the conveyor belt (14), and
des moyens (30) pour inspecter la face (13) de la découpe (12) au cours de son transport par le convoyeur vacuum (20), situés du côté opposé au convoyeur vacuum (20),  means (30) for inspecting the face (13) of the blank (12) during its transport by the vacuum conveyor (20), located on the opposite side of the vacuum conveyor (20),
caractérisé en ce que les moyens d'aspiration (40) délimitent trois tronçons d'aspiration (41 , 42, 43) distincts successifs le long du chemin de circulation (15), parmi lesquels un tronçon d'aspiration central (42) qui s'étend en regard des moyens d'inspection (30), un tronçon d'aspiration amont (41 ) et un tronçon d'aspiration aval (43).  characterized in that the suction means (40) delimit three successive distinct suction sections (41, 42, 43) along the circulation path (15), among which a central suction section (42) which extends towards the inspection means (30), an upstream suction section (41) and a downstream suction section (43).
2. Dispositif selon la revendication 1 , comprenant en outre, en regard des moyens d'inspection (30), des moyens de mise en tension (50) de la bande (22). 2. Device according to claim 1, further comprising, facing the inspection means (30), tensioning means (50) of the strip (22).
3. Dispositif selon la revendication 2, dans lequel les moyens de mise en tension (50) comportent une paire de galets (51 , 52) écartés le long du chemin de circulation (15). 3. Device according to claim 2, wherein the tensioning means (50) comprise a pair of rollers (51, 52) spaced along the circulation path (15).
4. Dispositif selon la revendication 3, dans lequel les galets (51 , 52) sont situés le long du tronçon d'aspiration central (42). 4. Device according to claim 3, wherein the rollers (51, 52) are located along the central suction section (42).
5. Dispositif selon la revendication 4, dans lequel les galets (51 , 52) délimitent la position amont et aval du tronçon d'aspiration central (42). 5. Device according to claim 4, wherein the rollers (51, 52) define the upstream and downstream position of the central suction section (42).
6. Dispositif selon l'une des revendications précédentes, dans lequel le tronçon d'aspiration central (42), le tronçon d'aspiration amont (41 ) et le tronçon d'aspiration aval (43) comportent chacun un caisson (41 a, 42a, 43a) dans lequel est générée une dépression. 6. Device according to one of the preceding claims, wherein the central suction section (42), the upstream suction section (41) and the downstream suction section (43) each comprise a box (41 a, 42a, 43a) in which a depression is generated.
7. Dispositif selon la revendication 6, dans lequel le caisson (41 a, 42a, 43a) communique avec une pompe à dépression. 7. Device according to claim 6, wherein the box (41a, 42a, 43a) communicates with a vacuum pump.
8. Dispositif selon la revendication 7, comprenant une première pompe à dépression (44) couplée à la fois avec le caisson amont (41 a) du tronçon d'aspiration amont (41 ) et avec le caisson central (42a) du tronçon d'aspiration central (42), et une deuxième pompe à dépression (45) qui communique avec le caisson aval (43a) du tronçon d'aspiration aval (43). 8. Device according to claim 7, comprising a first vacuum pump (44) coupled to both the upstream box (41a) of the upstream suction section (41) and the central box (42a) of the section of central suction (42), and a second vacuum pump (45) which communicates with the downstream box (43a) of the downstream suction section (43).
9. Dispositif selon la revendication 8, dans lequel moins de la moitié de la section de sortie de la deuxième pompe à dépression (45) est couplée au caisson central (42a) du tronçon d'aspiration central (42). The apparatus of claim 8, wherein less than half of the output section of the second vacuum pump (45) is coupled to the central box (42a) of the central suction section (42).
Dispositif selon l'une des revendications 7 à 9, dans lequel l'un au moins des caissons (41 a, 42a, 43a) présente un volume d'aspiration réglable. Device according to one of claims 7 to 9, wherein at least one of the boxes (41a, 42a, 43a) has an adjustable suction volume.
Dispositif selon l'une des revendications 7 à 1 0, dans lequel le caisson amont (41 a) et le caisson aval (43a) comprennent une paroi ajourée s'étendant le long du chemin de circulation (1 5), et en ce que la bande (22) présente une structure perforée qui est apte à glisser contre la paroi ajourée. Device according to one of claims 7 to 10, wherein the upstream box (41 a) and the downstream box (43a) comprise a perforated wall extending along the circulation path (1 5), and in that the band (22) has a perforated structure which is able to slide against the perforated wall.
12. Machine de traitement (1 00) équipée d'un dispositif de contrôle (10) selon l'une des revendications précédentes. 12. Processing machine (1 00) equipped with a control device (10) according to one of the preceding claims.
13. Machine plieuse-colleuse équipée d'un dispositif de contrôle (10) selon l'une des revendications 1 à 12. 13. Folder-gluer machine equipped with a control device (10) according to one of claims 1 to 12.
EP15797861.0A 2014-11-19 2015-11-10 Device for optically controlling a face of a blank, blank treatment machine and folder-gluer comprising said device Active EP3221221B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15797861T PL3221221T3 (en) 2014-11-19 2015-11-10 Device for optically controlling a face of a blank, blank treatment machine and folder-gluer comprising said device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14020088 2014-11-19
PCT/EP2015/025078 WO2016078776A1 (en) 2014-11-19 2015-11-10 Device for optically controlling a face of a blank

Publications (3)

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EP3221221A1 true EP3221221A1 (en) 2017-09-27
EP3221221B1 EP3221221B1 (en) 2019-03-20
EP3221221B2 EP3221221B2 (en) 2024-03-06

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EP15797861.0A Active EP3221221B2 (en) 2014-11-19 2015-11-10 Device for optically controlling a face of a blank, blank treatment machine and folder-gluer comprising said device

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US (1) US10647458B2 (en)
EP (1) EP3221221B2 (en)
JP (1) JP6560350B2 (en)
KR (1) KR102571872B1 (en)
CN (2) CN113103661A (en)
ES (1) ES2721780T3 (en)
PL (1) PL3221221T3 (en)
TR (1) TR201905630T4 (en)
WO (1) WO2016078776A1 (en)

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DE19728056A1 (en) † 1997-07-01 1999-01-07 Roland Man Druckmasch Feed table for the cyclical conveying of sheets to a sheet processing machine
DE19939163C1 (en) † 1999-08-20 2001-03-15 Koenig & Bauer Ag Procedures for processing securities
DE10008831C2 (en) 2000-02-25 2003-12-04 Daimler Chrysler Ag Conveying device for the suspended transport of flat objects, in particular metallic circuit boards
DE10057036C2 (en) * 2000-11-17 2002-12-12 Basler Ag Inspection system for flat glasses in display production
JP4571812B2 (en) 2003-02-24 2010-10-27 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Sheet transport device
DE102004005232A1 (en) † 2003-02-24 2006-02-16 Heidelberger Druckmaschinen Ag Conveying device for transporting sheets to sheet processing machine, has transport belt revolving endlessly over feed table and acted upon by pressure levels, and having through openings corresponding with suction and ventilation openings
CN2925861Y (en) * 2006-04-28 2007-07-25 上海今昌纸箱机械制造有限公司 Non-loss corrugating strength paper-transmission mechanism for automatic paper-feeding part
JP4977596B2 (en) 2007-06-26 2012-07-18 株式会社名南製作所 Standard sheet conveying method and conveying device
FI20070654A0 (en) * 2007-08-29 2007-08-29 Raute Oyj Hardware for moving plate-like objects
JP2009161342A (en) † 2008-01-10 2009-07-23 Seiko I Infotech Inc Conveying element and conveying device
DE102009032966A1 (en) 2009-07-14 2011-01-20 Gmg Grafische Maschinen Gesellschaft Mbh Device for treating arched substrates with light
US8157369B2 (en) * 2010-05-26 2012-04-17 Xerox Corporation Media hold-down system having cross process chambering
EP2422973B1 (en) † 2010-08-31 2013-06-05 Heidelberger Druckmaschinen Aktiengesellschaft Inspection module
CN102602722B (en) † 2011-01-19 2015-10-28 海德堡印刷机械股份公司 Suction band table
EP2578521A1 (en) 2011-10-03 2013-04-10 Bobst Mex Sa Control device for a blanks processing machine
CN102583076A (en) * 2012-03-09 2012-07-18 天津长荣印刷设备股份有限公司 Breadth regulating device for air bellow and working method of breadth regulating device

Also Published As

Publication number Publication date
US20170320607A1 (en) 2017-11-09
KR102571872B1 (en) 2023-08-28
EP3221221B2 (en) 2024-03-06
US10647458B2 (en) 2020-05-12
WO2016078776A1 (en) 2016-05-26
ES2721780T3 (en) 2019-08-05
CN107000866A (en) 2017-08-01
PL3221221T3 (en) 2019-07-31
KR20170087902A (en) 2017-07-31
EP3221221B1 (en) 2019-03-20
CN113103661A (en) 2021-07-13
JP2017536545A (en) 2017-12-07
JP6560350B2 (en) 2019-08-14
TR201905630T4 (en) 2019-05-21

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