Combination extrusion and laser-marking system, and related...

B - Operations – Transporting – 41 – M

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B41M 5/24 (2006.01) B29C 47/92 (2006.01)

Patent

CA 2759699

A combination extrusion (34) and laser (26) marking system and corresponding method are provided for creating an extruded article (10) with, a surface graphic image. The system includes an extruder (34), a laser (26), and a controller (22) or encoder. The extruder (34) is operable to pass an extrudable material through a die and discharge an extrudate (10) having a markable surface. The laser (26) is operable with the extruder (34) for forming an image on the markable surface of the extrudate (10) discharged from the extruder (34). The encoding system is operable to measure a rate of speed at which the extrudate (10)' is discharged from the extruder (34) and provide a feedback signal for controlling operation of the laser (26). The combination may further include an ink printer to form an additional image on the extruded article.

La présente invention concerne un système combiné dextrusion (34) et de marquage au laser (26) et son procédé correspondant, pour créer un article extrudé (10) dont la surface présente une image graphique. Le système comporte une extrudeuse (34), un laser (26), et un contrôleur (22) ou codeur. Lextrudeuse (34) sert à faire passer un matériau pouvant être extrudé à travers une matrice et à évacuer un extrudat (10) présentant une surface qui peut être marquée. Le laser (26) peut être exploité avec lextrudeuse (34) pour former une image sur la surface pouvant être marquée de lextrudat (10) évacué de lextrudeuse (34). Le système de codage sert à mesurer une vitesse à laquelle lextrudat (10) est évacué de lextrudeuse (34) et à fournir un signal de réaction destiné à commander le fonctionnement du laser (26). La combinaison décrite peut comporter en outre une imprimante à jet dencre pour former une image additionnelle sur larticle extrudé.

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