DEVICE AND METHOD FOR FLAW LOCATION DETECTION IN FABRIC AND MARKINGS
First Claim
1. A device for detecting flaws in a plastic woven fabric made of monoaxially drawn polymer ribbons, in particular polyolefin ribbons, preferably polypropylene ribbons, which is optionally coated with a thermoplastic material, in particular polyolefin, on one or two sides, wherein in order to monitor irregularities, which are characteristic of flawed sections of the plastic woven fabric, an inspection camera is provided for taking images of the plastic woven fabric and an analysis unit, which detects irregularities in the weaving pattern of the plastic woven fabric on the basis of the images taken by the inspection camera and which, when detecting irregularities in the weaving pattern indicating a flawed section of the plastic woven fabric, triggers an error signal, which actuates, for example, a flashing light or a horn, or which can be fed to a higher-level machine controller, further characterized in that there is provided a labelling device for attaching labels to the plastic woven fabric, wherein the labelling device is actuated directly or indirectly by the error signal, in order to attach at least one label to a flawed section.
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Accused Products
Abstract
The invention relates to a device for detecting flaws in a plastic woven fabric made of monoaxially drawn polymer ribbons, in particular polyolefin ribbons, preferably polypropylene ribbons, wherein in order to monitor irregularities, which are characteristic of flawed sections of the plastic woven fabric, an inspection camera is provided for taking images of the plastic woven fabric, and an analysis unit, which detects irregularities in the weaving pattern of the plastic woven fabric on the basis of the images taken by the inspection camera and which, when detecting irregularities in the weaving pattern indicating a flawed section of the plastic woven fabric, triggers an error signal, which actuates, for example, a flashing light or a horn, or which can be fed to a higher-level machine controller. There is further provided a labelling device for attaching labels to the plastic woven fabric, wherein the labelling device is actuated directly or indirectly by the error signal, in order to attach at least one label to a flawed section.
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Citations
11 Claims
- 1. A device for detecting flaws in a plastic woven fabric made of monoaxially drawn polymer ribbons, in particular polyolefin ribbons, preferably polypropylene ribbons, which is optionally coated with a thermoplastic material, in particular polyolefin, on one or two sides, wherein in order to monitor irregularities, which are characteristic of flawed sections of the plastic woven fabric, an inspection camera is provided for taking images of the plastic woven fabric and an analysis unit, which detects irregularities in the weaving pattern of the plastic woven fabric on the basis of the images taken by the inspection camera and which, when detecting irregularities in the weaving pattern indicating a flawed section of the plastic woven fabric, triggers an error signal, which actuates, for example, a flashing light or a horn, or which can be fed to a higher-level machine controller, further characterized in that there is provided a labelling device for attaching labels to the plastic woven fabric, wherein the labelling device is actuated directly or indirectly by the error signal, in order to attach at least one label to a flawed section.
- 4. A device for identifying flaws in a plastic woven fabric labelled by labels, characterized by a label sensor for detecting the position of the labels at the plastic woven fabric and by a processing unit, which identifies the flawed sections of the plastic woven fabric detected by the label sensor.
- 10. A method for labelling flaws of a preferably continuously moved plastic woven fabric, characterized by inspecting the plastic woven fabric, detecting irregularities in the weaving pattern of the plastic woven fabric and, when detecting irregularities in the weaving pattern of the plastic woven fabric indicating a flawed section of the plastic woven fabric, attaching at least one label to the flawed section of the plastic woven fabric.
Specification