Title:
SYSTEM FOR CUTTING SHAPES PRESET IN A CONTINUOUS STREAM OF SHEET MATERIAL
Document Type and Number:
WIPO Patent Application WO2003054646
Kind Code:
A3
Abstract:
Method and apparatus enable cutting out shapes (S) preset in moving sheet material (10) by locating coordinates of one or more fiducials (F,F2...) in the sheet material (10) with a vision system (12). The fiducials (F,F2...) correspond to a pattern (P) for the preset shape (S). A cutting system (11) superimposes the pattern (P) relative to the located one or more fiducials (F,F2...) for cutting out the preset shape (S) while the vision system (12) is concurrently locating subsequent one or more fiducials (F,F2...) in the moving sheet material (10). The concurrent processes of cutting and locating subsequent fiducials (F.F2...) are repeated substantially continuously. Preferably, using two or more fiducials (F,F2...), distortion is detected and the pattern (P) can be remapped before cutting for accurate superposition of the pattern (P) and distorted preset shape (S).
Inventors:
ANDREWS RANDALL G
BOURKE MARY M
SAWATZKY BRIAN D
REIF ANDREW Z
JOHNSTON BRAD
MAH CEDAR
BOURKE MARY M
SAWATZKY BRIAN D
REIF ANDREW Z
JOHNSTON BRAD
MAH CEDAR
Application Number:
PCT/CA2002/001901
Publication Date:
March 04, 2004
Filing Date:
December 10, 2002
Export Citation:
Assignee:
LACENT TECHNOLOGIES INC (CA)
International Classes:
B23K26/00; B23K26/02; B23K26/03; B23K26/38; B23Q15/013; B23Q35/128; G05B19/19; G05B19/4093; G05B19/42; (IPC1-7): G05B19/408
Foreign References:
| US5333111A | 1994-07-26 | |||
| US5353355A | 1994-10-04 | |||
| US4853866A | 1989-08-01 | |||
| US5791215A | 1998-08-11 | |||
| US5508936A | 1996-04-16 | |||
| US5172326A | 1992-12-15 | |||
| US5975743A | 1999-11-02 | |||
| CA2016554A1 | 1991-11-11 |
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