Decoration method, control system and decoration machine

Patent metadata

Field	Value
Publication number	US-2017266949-A1
Application number	US-201515388360-A
Country	US
Kind code	A1
Filing date	Jul 24, 2015
Priority date	Jul 25, 2014
Publication date	Sep 21, 2017
Grant date	—

Abstract

The present invention relates to a decoration method, for applying a new décor ( 170 ) on a surface ( 2 ) of an object ( 1 ) including an existing décor ( 120 ), characterized in that the method comprises the following successive steps: a step a) for measuring at least two identification points ( 120 a, 120 b, 120 f ) of the existing décor ( 120 ) applied on the surface ( 2 ) of the object ( 1 ); a step b) for dynamic correction of localization points ( 170 a, 170 b, 170 f ) of the new décor ( 170 ) to be applied on the surface ( 2 ) of the object ( 1 ), using the identification points ( 120 a, 120 b, 120 f ) measured during the measuring step a); and a step c) for application of the new décor ( 170 ) on the surface ( 2 ) of the object ( 1 ), by using the localization points ( 170 a, 170 b, 170 f ) determined in the dynamic correction step b). The invention also relates to a control system and a decoration machine comprising such a control system.

First claim

1 . A decoration method, for applying a new décor on a surface of an object (*including an existing décor, characterized in that the method comprises the following successive steps:
a step for measuring at least two identification points of the existing décor applied on the surface of the object;
a step for dynamic correction of localization points of the new décor to be applied on the surface of the object, using information relating to a theoretical décor and the identification points measured during the measuring step a); and
a step for application of the new décor on the surface of the object, by using the localization points determined in the dynamic correction step b).

2 . The decoration method according to claim 1 , characterized in that the identification points comprise at least one starting point and/or one ending point of the existing décor, preferably at least the starting point and the ending point of the existing décor.

3 . The decoration method according to claim 1 , characterized in that the existing décor and the new décor comprise neighboring borders that are rectilinear and substantially parallel projected in a plane, in that the identification points are measured only along a first direction in the measuring step a), and in that a substantially constant gap between the existing décor and the new décor, defined along a second direction orthogonal to the first direction, is obtained by closed-loop control of a decoration device in the application step c).

4 . The decoration method according to claim 1 , characterized in that the identification points are measured along two directions in the measuring step a).

5 . The decoration method according to claim 4 , characterized in that the existing décor and the new décor comprise neighboring borders that are non-rectilinear and/or non-parallel and in that the identification points are measured along the border of the existing decoration in the measuring step a).

6 . The decoration method according to claim 1 , characterized in that the existing décor and the new décor comprise several discontinuous sections.

7 . The decoration method according to claim 6 , characterized in that the identification points comprise at least one starting point and/or one ending point for each of the discontinuous sections of the existing décor.

8 . A control system, configured to carry out a decoration method according to claim 1 , characterized in that the control system comprises a detection device suitable for measuring at least two identification points of the existing décor, so as to perform dynamic correction of the localization points of the new décor to be applied on the surface of the object, by using the identification points.

9 . The system according to claim 8 , characterized in that the detection device is a linear camera.

10 . A decoration machine, characterized in that it comprises a control system according to claim 8 .

Assignees

• Illinois Tool Works

Inventors

• Paita Marco
• Lastrucci Tiziano
• Villeneuve Arnaud
• Demange Florent

Classifications

• B41F17/18

  on curved surfaces of articles of varying cross-section, e.g. bottles, lamp glasses · CPC title

• B41F16/0026 Primary

  with means for applying print under heat and pressure, e.g. using heat activable adhesive · CPC title

• B41F17/001 Primary

  Pad printing apparatus or machines · CPC title