EP4330146A1 - Étiqueteuse à surveillance d'image de colle - Google Patents

Étiqueteuse à surveillance d'image de colle

Info

Publication number
EP4330146A1
EP4330146A1 EP22717794.6A EP22717794A EP4330146A1 EP 4330146 A1 EP4330146 A1 EP 4330146A1 EP 22717794 A EP22717794 A EP 22717794A EP 4330146 A1 EP4330146 A1 EP 4330146A1
Authority
EP
European Patent Office
Prior art keywords
labels
glue
label
containers
inspection
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.)
Pending
Application number
EP22717794.6A
Other languages
German (de)
English (en)
Inventor
Bernhard Duenzinger
Olaf ETIENNE
Peter Lindner
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.)
Krones AG
Original Assignee
Krones 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 Krones AG filed Critical Krones AG
Publication of EP4330146A1 publication Critical patent/EP4330146A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/40—Controls; Safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/40—Controls; Safety devices
    • B65C2009/402—Controls; Safety devices for detecting properties or defects of labels
    • B65C2009/404—Controls; Safety devices for detecting properties or defects of labels prior to labelling

Definitions

  • the present invention relates to a device and a method for labeling containers. Such devices and methods have long been known from the prior tech technology. It is known that labels are applied with glue shortly before they are applied to the containers.
  • Hot melt from the roll is usually used for wrap-around labelling. Labels are fed to the cutting unit and then given initial and final gluing, which is applied either with a roller or by spraying.
  • the initial glue is pressed against the container.
  • Pre-cut labels are typically used for cold or wet glue applications.
  • pallets are moved past a gluing roller and thus have glue applied to them.
  • These glued pallets oscillate past the stack of labels and remove one label at a time.
  • the Grabber HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 2 grips the label with its fingers and conveys it along the transport path to the container.
  • the labels provided with the glue are usually attached directly to the containers.
  • the present invention is therefore based on the task of improving the quality of such label processes. Also, for example, ill-fitting labels or HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT
  • the containers are transported along a given transport path and at least one area of the containers is equipped or applied with labels, these labels in particular being attached to an outer surface of the container.
  • labels are made available and these labels are applied with glue on a rear surface with which they are arranged and in particular glued to the containers.
  • the labels applied to the containers are then arranged and in particular glued to the containers.
  • the labels to which the glue has been applied are inspected by means of an inspection device before they are attached to the containers.
  • the labels are inspected by means of a first inspection device, the first inspection device recording at least one image of the labels by means of an image recording device and labeling being controlled using this image.
  • Both variants according to the invention therefore propose that an inspection of the label is carried out and, in particular, on the basis of a result of this inspection, (in particular future) labeling is acted upon.
  • the inspection takes place while the labels are being transported.
  • the inspection takes place while the labels are being held by means of a holding device or while the labels are already arranged on the containers and are being transported with them.
  • the labels are particularly preferably transported by means of a label transport device.
  • a label transport device This can be, for example, a so-called vacuum cylinder HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 4 preferably has a large number of vacuum stations, by means of which the labels can be transported.
  • the glue is preferably selected from a group of glues including a cold glue, a hot glue and a nozzle sprayed glue.
  • the labels are attached to a base body of the containers.
  • the containers are in particular bottles and in particular beverage bottles.
  • the containers are plastic, for example PET, or glass containers and in particular glass bottles.
  • the surface of the label to which the glue is applied is inspected (that is to say in particular its rear side).
  • the glue pattern and/or a position of the labels are preferably visualized before they are applied to the container and in particular while they are on a gripper or vacuum cylinder and in particular visualized by means of an image recording device such as a camera. This inspection is particularly preferably carried out shortly after the gluing and particularly preferably before the label is attached to or transferred to the container.
  • the label or labels are preferably inspected by means of an image recording device.
  • the image recording device records at least one image of the backs of the labels to which the glue has been applied. It is possible that several recordings or image recordings are made and preferably these are then combined. It is also possible for these image recordings to be made one after the other at a very short time interval and thus at the same place on the label, so to speak.
  • At least one physical property of the label to which the glue is applied is determined, this property preferably being selected from a group of properties which include a structure of the glue applied to the label, a distribution of the glue on the label, a position of the label relative to a holder, a rotational position of the label, an amount of glue applied, and the like.
  • the labels are applied with the glue and/or the labels are positioned on the containers and/or the holding devices, taking into account the inspection or a result of this inspection.
  • the labels to which the glue has been applied are illuminated by means of an illumination device for the purpose of inspection.
  • a challenge when inspecting the labels is that very often the glue color and the label color are identical and can hardly be visualized due to the weak contrast.
  • a nozzle In order to obtain sufficient glue for applying glue with a spraying process, for example, a nozzle must apply glue beads carried out at high power and/or speed or many glue dots or several consecutive lines of glue must be applied in inching mode or at low power.
  • the glue images are applied differently depending on the speed, analyzes are proposed within the scope of the invention in which the evaluation parameters and/or evaluation conditions switch accordingly. It is thus possible for the gluing to be adjusted depending on the inspection. For example, the speed-dependent evaluation conditions can switch the gluing parameters accordingly and thus generate or expect a different glue pattern.
  • Both the position of the labels and the glue pattern can be adjusted and optimized using correction loops. It is therefore possible that a glue pattern is often recorded, in particular from different containers, and the gluing or HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 6 the glue pattern to be produced is adapted to it, which can be done in particular by means of a control loop.
  • This adjustment of the glue pattern can also be visualized for a user, for example by means of a monitor.
  • the recorded glue pattern is therefore preferably also indicated to the user at least temporarily, so that the user can track a change in the glue pattern.
  • the glue image can also be continuously output to the user in a suitable manner that allows him to visualize it quickly.
  • the corresponding glue image is preferably output or visualized to the user, which can also be done in particular by means of a computer animation.
  • a corresponding adjustment can also take place automatically by changing the reservoir or by actuators or by changing the vacuum.
  • other parameters are also taken into account when adapting or correcting the glue pattern, such as in particular characteristics of the containers to be labeled.
  • the material of the containers to be labeled can be taken into account (e.g. whether the containers are made of glass, PET or metal), or the wall thickness of the containers to be labeled or the size of the containers to be labeled, the filling level of the containers (i.e. whether empty containers or already filled and sealed containers are to be labeled, a structure of the surface to be labeled (ie whether the surface is smooth or has structures such as grooves) and the like.
  • environmental parameters are preferably also taken into account when correcting the glue pattern, such as in particular but not exclusively an ambient temperature, an air pressure, an air humidity, a geographic location of a corresponding system and the like.
  • the above-mentioned illumination of the label takes place frontally or from above and in particular at a steep angle.
  • This is preferably an angle with respect to a vertical direction and/or a tangent direction of the label to be labeled which is less than 40°, preferably less than 30°, HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 7 preferably less than 25°, preferably less than 20°, preferably less than 15° and particularly preferably less than 10°.
  • the glue color is often similar or also transparent, so that visualization or inspection can be achieved by means of the lighting. Illumination at a steep angle causes the glue dots or glue lines to cast shadows that can be detected.
  • the illumination is preferably triggered with the image recording. This can be done, for example, via a light barrier control, or via an evaluation of a rotational position of the transport device that transports the containers.
  • the lighting device is arranged in a vertical direction above the image recording device or to the side of it.
  • the illuminator emits directional radiation.
  • the lighting device it would also be possible for the lighting device to emit diffuse radiation.
  • the labels are inspected using the incident light method.
  • the lighting device preferably has at least one LED and in particular a large number of LEDs.
  • a glued image is attached to the label and is therefore slightly raised.
  • a lighting device such as a lamp illuminates the label or the glue picture steeply from above.
  • Glue beads cast shadows with it. This shadow cast by the beads of glue can be clearly seen in a photograph. In this way, an evaluation of the image is possible. This checks the position of the label and preferably also the completeness of the glue pattern. If necessary, the gluing can be readjusted until the parameters specified in advance are within a specified range.
  • a height of the label with respect to a holding device such as a vacuum gripper can be adjusted.
  • the height can be clearly adjusted by a label transport roller or the like.
  • Such a level control can preferably react accordingly.
  • a lateral offset of the label in relation to a target position there can also be a lateral offset of the label in relation to a target position.
  • pallet processing can be checked and/or corrected.
  • a vacuum when using a vacuum HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 8 gripper for transporting the labels, a vacuum must be checked and corrected if necessary.
  • it is also possible to adapt charging in response to a corresponding inspection of the label for example by activating an antistatic unit.
  • a glue quantity and/or a glue position can also be changed in response to the inspection.
  • a scraper can be provided that spreads the cold glue on the labels.
  • This scraper or this scraper device can be regulated nachge, which can be done for example by means of an actuator.
  • a glue pattern that does not correspond to the desired state can result, for example, because individual nozzles for the glue application are clogged or otherwise not working. In this case, for example, a cleaning process can be initiated.
  • the inspection can show that a glue pattern appears too late or is applied too late.
  • the parameters of the glue application can be changed by a certain time offset, say, by a few milliseconds. If, for example, a glue pattern appears too late at high power, it is possible to increase the lead time so that the nozzles start spraying earlier even at high power.
  • Another possible error would be that too little (hot) glue is applied in a certain area of the label, for example in the upper area. In this case it is possible to increase the operating frequency of the glue pump.
  • Labels can contain one or more of the following criteria: color, grain direction, absorbency, smoothness, inhomogeneity or tendency to curl.
  • At least one physical property of the label to which the glue is applied is determined, this property being preferably selected from a group of properties of the labels which include its color, fiber direction, absorbency, smoothness, inhomogeneity, a includes curl and the like.
  • the labels recorded by an image recording device are evaluated by means of an evaluation device.
  • the recorded images can be compared with reference images or with images recorded earlier and instructions can be obtained from this as to how the gluing is to be changed.
  • This evaluation can be carried out in particular using artificial intelligence.
  • At least one defect size is determined by means of a defect evaluation device or error evaluation (preferably when a defect or error in the gluing is determined) on the basis of the (in particular locally resolved) sensor data (i.e. the data output by the image recording device). which is characteristic for the defect of a gluing.
  • at least one parameter which is linked to the defect size can preferably be determined and/or is determined on the basis of the defect size.
  • a large number of parameters, particularly preferably a combination of parameters, can preferably be determined and/or is determined, which is linked to the defect size.
  • a parameter characteristic of the gluing and/or the application of the label is preferably determined on the basis of at least one parameter and preferably on the basis of the large number of parameters of the labeling device, on the basis of which the defective container was labeled in the labeling device.
  • a value and/or a (relative and/or absolute) change in a value of the parameter or a variable characteristic of this is preferably determined for the determined parameter.
  • the ascertained parameter and/or the ascertained value and/or the ascertained change in the value of the parameter or (in each case) characteristic data for this is provided to a control device of the labeling device.
  • the control device changes and/or adjusts the respective value of the (in each case) Parameters of the labeling device.
  • a further treatment of containers preferably takes place on the basis of these changed and/or set (respective) values of the (respective) or the (respective) parameters of the labeling device.
  • the defect size is characteristic of a size that is selected from a group that includes (in particular locally) insufficient gluing, a local excess of glue, a glue pattern that deviates from a target pattern, a drape of a fold on the container Labels, contains from the container standing areas of the label and the like.
  • the defect or error that occurs is analyzed and it can thus be determined, for example in the form of a prognosis, as to how the occurrence of such a defect can be prevented or at least greatly restricted in the future.
  • An analysis of the defect can preferably be used to control and/or (fine) adjust the or a labeling process. Control and/or (fine) adjustment of the or a (different) labeling device preferably takes place on the basis of the defect size and/or the sensor data determined.
  • the sensor device mentioned in the context of the present application is in particular a component of the inspection device.
  • the defect (as an object) recorded and/or represented in the sensor data is preferably assigned to a (previously taught and/or predetermined) class.
  • a location of a defect (as an object) recorded and/or represented in the sensor data is determined or determined (in particular with regard to the sensor data), which is marked and/or marked in particular by a so-called bounding box is highlighted.
  • each pixel of the sensor data is assigned a class (for classifying an object) (in particular from a multiplicity of classes, which is specified in particular) (class annotation).
  • the classes (for classifying the defect in particular) can include (among other things) (different) defect types (e.g. excess glue, lack of glue, glue pattern deviating from a target state, etc.) and/or defect shapes and/or defect dimensions and/or glue distributions in relation to the defect and/or a predetermined external and/or internal appearance of the label and/or other features of a defect described above in relation to the defect size and/or other features for classifying a defect or sizes characteristic thereof and the like. At least one class is preferably assigned to the defect.
  • defect types e.g. excess glue, lack of glue, glue pattern deviating from a target state, etc.
  • defect shapes and/or defect dimensions and/or glue distributions in relation to the defect and/or a predetermined external and/or internal appearance of the label and/or other features of a defect described above in relation to the defect size and/or other features for classifying a defect or sizes characteristic thereof and the like.
  • At least one class is preferably assigned to the defect.
  • a defect size and/or the large number of determined defect sizes preferably includes characteristic data for a defect determined and/or identified from the (raw) sensor data, in particular a glue pattern a crack and/or in particular produced by a glue pattern HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 12 pre-determined locations of the label and/or a class for classifying the defect.
  • the defect size is preferably determined from the class for classifying the defect.
  • the determination of the at least one defect size and particularly preferably the determination of a large number (or all) defect sizes of (in particular each) defect to be detected in a container is preferably based and/or in particular the determination of the sensor data is based on the raw sensor data generated by the sensor device or data derived therefrom Data (and in particular the execution of computer vision methods or perception methods) is based on (computer-implemented) machine learning methods, preferably on at least one (artificial) neural network-based machine learning method.
  • Such a neural network can be designed, for example, as a deep neural network (DNN) and/or a so-called convolutional neural network (CNN) and/or a recurrent neural network (RNN). be.
  • DNN deep neural network
  • CNN convolutional neural network
  • RNN recurrent neural network
  • the classes for classifying a defect are preferably specified.
  • the classes are preferably stored on an external storage device (described in particular below) and can be updated by retrieving these stored classes.
  • the classes can preferably be compared with at least one reference labeling device.
  • the glue is applied taking into account an application speed of the glue. For example, an application quantity or application position of the glue can be adjusted.
  • the application of glue to the labels, the transport of the containers, the transport of the labels and/or a storage device for storing the labels are controlled.
  • this control takes place using data that are obtained from the at least one inspection device.
  • a control circuit is particularly preferably provided which, as mentioned above, readjusts different parameters of the treatment of the containers at least temporarily and preferably permanently.
  • this takes place in a number of steps, with these individual steps preferably also being able to be assigned inspection steps and/or inspection steps taking place between these steps.
  • several inspection steps are carried out, in particular in several steps of the method, for example an inspection of an imprint applied to the label, an inspection of a cutting process of the label, an inspection of the gluing, an inspection of the label arranged on the container, an inspection of another print , such as an expiry date and/or an inspection of the container transport.
  • labels or label strips can be conveyed and preferably printed in one process step.
  • This printing can be detected by means of an inspection, for example by means of an image recording device.
  • the corresponding data or images can be evaluated.
  • this method step or after this method step it is preferably checked whether the inspection result corresponds to a target criterion or is within the framework of specified tolerance criteria. If it turns out that the inspection result does not exactly correspond to a target value, but is within the specified tolerance limits, corrective action can be taken and an adjustment to the target value can be achieved. For example, a print image can be adjusted.
  • the label in question is preferably rejected.
  • a label is preferably replaced and/or the resulting space is filled with another label.
  • the labels are cut.
  • a crop mark can be applied to the label and, in particular, printed on it.
  • This process is also inspected again in the manner described above, it being preferably checked again here whether an inspection result lies within predetermined tolerance values.
  • the cutting is preferably controlled in response to an inspection result of the previous inspection process (in which the conveying and/or the pressure of the container was inspected).
  • the position of the cutting mark can be checked as part of the cutting process.
  • a cutting operation of the label is preferably adapted to the result of this testing operation.
  • the inspection process is preferably carried out after the cutting process, so that in particular an adjustment for subsequent cutting processes can take place. For example, a position and/or length of the cut labels can be adjusted. A faulty label can also be rejected in this step.
  • the label is glued and/or printed. Even after this gluing and/or printing, the label is preferably inspected again in order to inspect this gluing and/or printing.
  • the gluing and printing (in particular after the following labels) can also be controlled here, taking this inspection process and/or inspection result into account.
  • the gluing and/or printing process is preferably also controlled using a previous inspection result, ie in particular an inspection result of one of the inspection processes described above.
  • a previous inspection result ie in particular an inspection result of one of the inspection processes described above.
  • the length, the position (of the gluing or the printing) or, for example, a unit speed can be controlled.
  • the label is applied to the container.
  • the position of the glued image can be controlled.
  • an inspection of the label now attached to the container preferably takes place. This inspection result can also be used for subsequent processes or for attachment HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT
  • the label arranged on the container is printed, in particular with data such as a best-before date. This process or this pressure is also advantageously inspected.
  • the now labeled container is transported further.
  • At least two, preferably at least three, inspection processes are carried out on the labels before the label is arranged on the container.
  • a conveying process of the labels can be inspected, a cutting process, the application of crop marks, a printing process and the gluing process.
  • the device described below therefore preferably has at least two, preferably at least three and preferably at least four inspection devices, which are preferably arranged one behind the other in a transport direction of the labels.
  • an inspection is carried out before the labels are glued.
  • At least one element of the labeling device is preferably controlled taking this inspection into account. It is thus possible for a position of a label container to be changed taking this inspection into account, for example a vertical position of the container and/or a lateral position.
  • the position of a label roll can also be changed taking this inspection into account and/or a position or another parameter of a vacuum cylinder. A shift in relation to 3 or 5 axes is possible.
  • a vacuum in particular a vacuum cylinder
  • a negative pressure of the vacuum cylinder can preferably be adapted to a quality of the label, for example its rigidity, in particular to prevent smaller “dents” from appearing on the label.
  • a pressure is controlled (in particular also as a function of this inspection) and/or a buffer device and/or a label tension of the labels to be attached.
  • defective labels are preferably discharged and/or removed from the process. These can be discharged before or after gluing, for example sucked off. It would also be possible to reject incorrectly labeled containers. Labels could also be rejected before they are provided with an imprint which is characteristic of a best-before date.
  • a pressure can also be tracked when an offset is detected.
  • the images recorded by the image recording device are evaluated using a neural network and in particular using a deep neural network.
  • a comparison of the recorded images can take place. It is also possible to draw conclusions about a first image (for example a glued image) from certain errors found in a certain image (for example a label already arranged on a container).
  • a disadvantage can arise with the inspection method described above if, for example, the labels are not lying flat and deformations occur, for example due to vacuum cups.
  • a contrast between the label and the glue can be increased.
  • a preferred method uses a fluorescent glue, particularly when a label paper is non-fluorescent. In this case, a recording with UV light is preferred.
  • the glue is (slightly) colored, for example colored slightly blue.
  • the blue color channel is activated and the result is a high-contrast image or an image with enhanced blue tones.
  • the label can be illuminated flatly, since a good contrast is created even with a very small amount of color pigments.
  • both the label and the glue can be visualized and evaluated independently and without shadows.
  • Labels that are longer in a longitudinal direction of the container or perpendicular to it can be further improved by the above-mentioned configurations, for example if complete visualization is no longer possible with an image recording due to cylindrical clamping on the gripping or vacuum cylinder. This can be the case, for example, with labels that are continuously unwound.
  • the time interval between two recordings is advantageously less than 30 ms, preferably less than 20 ms, preferably less than 10 ms and preferably less than 8 ms, preferably less than 6 ms, preferably less than 5 ms and preferably less than 4ms.
  • images with an exposure time of less than 1 ms, preferably less than 500 ps, preferably less than 200 ps, preferably less than 150 ps and particularly preferably less than 100 ps are preferred.
  • the order conditions can also switch accordingly.
  • a corresponding labeling device preferably allows a change or modification of gluing parameters.
  • the speed-dependent evaluation conditions described here also switch the parameters accordingly and thus lead to different glue patterns. So HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 18, for example, spot gluing can take place at a slow speed, line gluing at a medium speed and continuous line gluing at a high speed.
  • the parameters can be switched over by a control signal for switching over the parameters.
  • This control signal can come directly from a control of a gluing system and thus lead to a different glue pattern, for example a lined glue pattern.
  • the glue pattern can also be switched on the basis of machine output.
  • recorded images are compared with standard images or reference images and a decision is made as to whether the recorded image is within a target range. All in all, deviations can be reacted to quickly and one or more (manual or automated) optimization loops can be initiated in a targeted manner without having to accept any loss of quality. If the deviations are too great, targeted rejection can be carried out, with preference being given to rejecting containers that are not labeled or not sufficiently well labeled.
  • the containers are also inspected by means of a second inspection device before or after the inspection by means of the first inspection device.
  • the labels are inspected at least twice, for example before being attached to the containers and then in a state in which they are attached to the container.
  • one inspection device preferably inspects a rear side of the labels to which the glue has been applied, and another inspection device inspects the labels arranged on the containers.
  • An image recorded by the first inspection device is therefore preferably assigned to an image recorded by the second inspection device of the same label. It is possible that a comparison is made between these two images. This way can HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 19
  • At least one inspection is preferably carried out and both inspections are particularly preferably carried out during transport of the labels.
  • the inspection is preferably carried out while the labels are held by means of a holding device, such as in particular by means of a vacuum cylinder, a gripper and the like.
  • a physical property of the label to which the glue is applied is preferably determined here, this property preferably being selected from a group of properties which include a structure of the glue applied to the label, a distribution of the glue on the label, a position of the label , a rotated position of the label, an amount of glue applied, and the like.
  • the recorded images are preferably evaluated.
  • the evaluation method or methods working on the basis of artificial intelligence can include a deep neural network in order to evaluate the first measurement data and further measurement data together with the deep neural network.
  • the deep neural network can be trained particularly easily for the various environmental conditions.
  • the deep neural network may include an input layer, one or more hidden layers, and an output layer.
  • the deep neural network can include a so-called convolutional neural network with at least one convolutional layer and with a pooling layer.
  • the evaluation method working on the basis of artificial intelligence comprises at least one method step with a neural network in order to evaluate the first measurement data and the second measurement data together with the neural network.
  • Another advantage of a CNN convolutional neuronal network is that the glue pattern can be analyzed largely independently of label designs that may show through the label. The same applies to paper, fibers or brightness, since the application of glue is noted as a good criterion.
  • the present invention is also directed to a device for attaching labels to containers with a transport device which transports the containers to be labeled along a predetermined transport path and with a label transport device which removes labels from a label supply and transports these labels and with a glue application device , which applies glue to the labels transported by the label transport device.
  • the device has an inspection device which is suitable for inspecting the labels transported by the label transport device, with this inspection device being located in the transport device for the labels after the application device and preferably before the transport device which carries the containers transported, is arranged.
  • the device has an inspection device which is suitable for inspecting the labels, with the first inspection device having an image recording device which records at least one image of a label to be inspected, and with a control device also being provided which controls labeling using this image.
  • labeling is to be understood here as meaning at least one process that contributes to the labeling, such as transporting the labels, gluing the labels, attaching the labels to the containers and the like. Several of the processes mentioned are preferably controlled.
  • the inspection device is preferably suitable for inspecting the reverse side of the labels. However, it would also be possible for the first inspection device described here to inspect the labels arranged on the containers. HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT 21
  • the label transport device is a vacuum cylinder.
  • This label transport device preferably has a carrier which can be rotated about an axis of rotation and on which a plurality of vacuum elements are preferably provided, which serve to (temporarily) hold the labels.
  • the transport device for transporting the containers preferably also has a rotatable carrier.
  • the transport device for transporting the containers also has a rotating device, which is used to rotate the containers with respect to their longitudinal direction.
  • the device also has an image evaluation device which evaluates the images recorded by the inspection device.
  • the device preferably also has a controller which can control different system parts of the device, such as the label transport device, the container transport device, the application device which applies glue to the labels and the like.
  • the device preferably has a processor device which controls one or more of the units of the device, taking into account measurement data from the inspection device(s).
  • This processor device can also have the evaluation device mentioned above.
  • the inspection device has an image recording device which is suitable for recording at least one spatially resolved image of the glued labels.
  • the glue application device particularly preferably has a control device which controls the gluing, in particular also in response to a recorded image of the gluing.
  • the device has a second inspection device, one inspection device being suitable and intended for inspecting the labels transported by the label transport device and one inspection device being suitable and intended for inspecting the labels arranged on the containers.
  • the device also has an assignment device which assigns a further image, which shows the glued reverse side of this label, to a specific recorded image of a label which is arranged on the container.
  • this assignment can also be used to regulate the device. In this way, it can be determined what results a certain glue application or label quality leads to on the back of the label.
  • FIG. 1 shows a device 1 for labeling containers.
  • a (only cal matic) shown transport device 2 is provided which transports containers 10 benefits.
  • 10 labels 20 are attached to the containers.
  • a storage facility 14 is provided for this purpose, in which the individual labels are stored.
  • These labels are first transferred to a label transport device 4 .
  • This label transport device 4 has a large number of folding devices 44 which are arranged on a rotatable carrier 42 here. As shown in FIG. 1, these individual stations 44 each receive individual labels 20 .
  • the reference number 6 designates a glue application device which applies a specific glue pattern to the rear sides 20a of the labels.
  • This glue application device can have one or more nozzles which apply the glue to the backs of the labels.
  • Reference number 8 designates a first inspection device which inspects this glue pattern.
  • the reference number 82 designates an image recording device which records images of the labels provided with the glue.
  • a lighting device (not shown) can also be provided, which preferably illuminates the rear sides 20a of the labels 20 at a steep angle.
  • the image recording unit is preferably HA] WO 2022/228788 ; PARTNER PCT/EP2022/057702 'PT
  • the reference number 18 designates an evaluation device which evaluates the images recorded by the first inspection device 8 or the image recording device 82 .
  • the evaluation device can be a component of a processor device which is designated in its entirety by 30 and which is preferably used to control the entire device.
  • Reference number 16 designates a further inspection device which inspects the labels arranged on the containers.
  • This inspection device also preferably has an image recording device which records spatially resolved images of the labels arranged on the containers.
  • a lighting device for illuminating the containers provided with the labels can also be accommodated.
  • the evaluation device 18 evaluates the images taken by the inspection devices 8 and 16 . This is indicated by the two arrows P1 and P2.
  • data from the glue application device 6 can also be transmitted to the evaluation device, for example set parameters which are used when applying glue (arrow P3).
  • a control device which controls and/or regulates various units of the device, such as the storage device (arrow P5), the transport device or turntable control for aligning the containers 2 (arrow P6) or, conversely, the glue application device 8 (double arrow P4) .
  • the reference number 22 designates a visualization device which, for example, visualizes the recorded images or also the changes that are caused by the processor device 8, for example to the glued image.

Landscapes

  • Labeling Devices (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

Est divulgué un procédé d'étiquetage de récipients (10), selon lequel les récipients (10) sont transportés le long d'un trajet de transport prédéfini et au moins une zone des récipients (10) est munie d'étiquettes (20), les étiquettes (20) étant mises à disposition et une surface arrière (20a) desdites étiquettes, qui est appliquée sur les récipients (10), est enduite de colle, après quoi les étiquettes enduites de colle (20) sont apposées sur les récipients (10), ledit procédé étant caractérisé en ce que les étiquettes sont inspectées au moyen d'un premier dispositif d'inspection (8, 16), ledit premier dispositif d'inspection (8, 16) capturant au moins une image des étiquettes au moyen d'un dispositif de formation d'image, et le processus d'étiquetage étant commandé sur la base de cette image.
EP22717794.6A 2021-04-28 2022-03-23 Étiqueteuse à surveillance d'image de colle Pending EP4330146A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021110837.3A DE102021110837A1 (de) 2021-04-28 2021-04-28 Etikettiermaschine mit Leimbildüberwachung
PCT/EP2022/057702 WO2022228788A1 (fr) 2021-04-28 2022-03-23 Étiqueteuse à surveillance d'image de colle

Publications (1)

Publication Number Publication Date
EP4330146A1 true EP4330146A1 (fr) 2024-03-06

Family

ID=81346560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22717794.6A Pending EP4330146A1 (fr) 2021-04-28 2022-03-23 Étiqueteuse à surveillance d'image de colle

Country Status (4)

Country Link
EP (1) EP4330146A1 (fr)
CN (1) CN117203131A (fr)
DE (1) DE102021110837A1 (fr)
WO (1) WO2022228788A1 (fr)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02139326A (ja) 1988-11-10 1990-05-29 Koyo Autom Mach Co Ltd ラベリングマシンにおける不良ラベルの除去装置
DE19911074B4 (de) * 1999-03-12 2005-11-10 Khs Maschinen- Und Anlagenbau Ag Vorrichtung zum Etikettieren von Flaschen mit einem Etikettieraggregat
US20020168212A1 (en) * 2001-05-09 2002-11-14 Nedblake Greydon W. On-demand label applicator system
JP2005345730A (ja) 2004-06-02 2005-12-15 Sansei Seiki Kk ラベル、ラベル貼着装置およびラベル貼着方法
JP2007161341A (ja) 2005-12-16 2007-06-28 Koyo Autom Mach Co Ltd ラベリングマシンおける不良ラベルの除去装置
DE102009035924A1 (de) 2009-08-03 2011-02-10 Krones Ag Vorrichtung und Verfahren zum Überprüfen eines Etiketts auf einem Etikettenträger
DE102010023431A1 (de) 2010-06-11 2011-12-15 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Beleimen von Etiketten
DE102011017448A1 (de) 2011-04-18 2012-10-18 Krones Aktiengesellschaft Verfahren zum Betreiben einer Behältnisbehandlungsanlage mit Störungsdiagnose
JP5908275B2 (ja) 2011-12-26 2016-04-26 サントリーホールディングス株式会社 ラベル搬送装置
JP5811457B2 (ja) 2011-12-26 2015-11-11 サントリーホールディングス株式会社 ラベルへの糊塗布装置並びにラベル貼付装置
JP5709058B2 (ja) 2011-12-26 2015-04-30 サントリー食品インターナショナル株式会社 ラベル貼付装置
DE102015212136A1 (de) * 2015-06-30 2017-01-05 Krones Ag Vorrichtung und Verfahren zum Etikettieren von Behältern
CN106516319B (zh) * 2016-11-21 2018-09-18 邓刚 一种无底纸标签贴标装置及方法
DE102018102055A1 (de) * 2018-01-30 2019-08-01 Krones Ag Vorrichtung und Verfahren zur Überprüfung der Etikettier- und/oder Druckgenauigkeit
JP7285069B2 (ja) 2018-12-25 2023-06-01 サッポロビール株式会社 ラベル糊量検査装置及びラベル糊量検査方法

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DE102021110837A1 (de) 2022-11-03
WO2022228788A1 (fr) 2022-11-03
CN117203131A (zh) 2023-12-08

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