Method and device for creating sewing data

Abstract

A device and method for creating sewing data using sample patterns ( 4 ) is provided in which relative movement between a detection device ( 27 ) and a sample pattern ( 4 ) is detected using an optic sensor, such as the one used in computer mice. The detection of movements is independent from any potentially visible edges. A processing unit ( 32 ) converts the movement data detected into sewing data, which can be saved in a storage unit ( 34, 56 ). Using said sewing data, a sewing machine can create sewing patterns, which are proportional to the ones of the sample pattern ( 4 ).

1 . A method for creating sewing data according to a sample pattern ( 4 ), comprising: using a detection device ( 27 ) to detect a relative movement of the sample pattern ( 4 ) using an optic sensor, and processing measurements obtained by the detection device ( 27 ) into sewing data using a processing unit ( 32 ), which is suitable to control a transportation device ( 7 ) for displacing the article to be sewn ( 3 ) in a sewing machine ( 1 ) in such a manner that movement of the article to be sewn ( 1 ) proportional to the relative movement of the sample pattern ( 4 ) detected below the sewing needle ( 19 ) occurs.  
   
   
       2 . A method for creating sewing data according to  claim 1 , further comprising displacing the sample pattern ( 4 ) which is at least partially resting on a support surface along the support surface.  
   
   
       3 . A method for creating sewing data according to  claim 1 , further comprising moving the detection device ( 27 ) or parts thereof relative to the sample pattern ( 4 ).  
   
   
       4 . A method for creating sewing data according to  claim 1 , further comprising saving the sewing data in a storage medium ( 34 ,  56 ).  
   
   
       5 . A method for creating sewing data according to  claim 1 , further comprising transferring the sewing data into a work storage part of a sewing machine control ( 25 ) and further processing the sewing data to control a transportation device ( 7 ,  7   a ) for the article to be sewn ( 3 ).  
   
   
       6 . A method according to  claim 5 , further comprising incrementally displacing the article to be sewn ( 3 ) using the transportation device ( 7 ,  7   a ) from one puncture position to a subsequent puncture position each, with the puncture positions being predetermined by the sewing data or by the sewing machine control ( 25 ) calculated based on the sewing data, and initiating execution of a sewing stitch at each puncture position using the sewing machine control ( 25 ).  
   
   
       7 . A device for creating sewing data according to a sample pattern ( 4 ), comprising: a detection device ( 27 ) that is adapted to detect a relative movement of the sample pattern ( 4 ) including an optic sensor, and a processing unit ( 32 ) which is adapted to receive processing measurements obtained by the detection device ( 27 ) for conversion into sewing data, the processing unit being adapted to control a transportation device ( 7 ) for displacing the article to be sewn ( 3 ) in a sewing machine ( 1 ) in such a manner that movement of the article to be sewn ( 1 ) proportional to the relative movement of the sample pattern ( 4 ) detected below the sewing needle ( 19 ) occurs, the optic sensor is an image sensor ( 29 ) and the detection device ( 27 ) comprises an imaging optic ( 30 ) adapted to image surface areas of the sample pattern to be displayed with the image sensor ( 29 ).  
   
   
       8 . A device according to  claim 7 , further comprising the detection device ( 27 ) being located on the sewing machine ( 1 ) such that the surface and/or a bottom of the sample pattern ( 4 ) and/or the article to be sewn ( 3 ) can be detected in an area of a detection mark ( 44 ).  
   
   
       9 . A device according to  claim 7 , wherein the detection device ( 27 ) is at least partially integrated in a sewing foot ( 23 ).  
   
   
       10 . A device according to  claim 7 , wherein the detection device ( 27 ) for detecting movement patterns comprises a scanner head ( 5 ) that can be guided over the sample pattern.  
   
   
       11 . A device according to  claim 10 , wherein the detection device ( 27 ) comprises a communication device for a wireless or a wired communication to the processing unit ( 32 ) and/or an evaluation device ( 54 ) and/or a sewing machine control ( 25 ).  
   
   
       12 . A device according to  claim 7 , wherein the detection device ( 27 ) comprises a light source ( 55 ), and optic elements adapted to guide light emitted from the light source ( 55 ) onto a surface of the sample pattern ( 4 ) to be scanned such that it can be detected through high-contrast by the sensor ( 29 ).  
   
   
       13 . A device according to  claim 7 , wherein the processing unit ( 32 ) is adapted to transfer measurements or data generated by the sensor ( 29 ) into sewing data or into control data for influencing movement of a transportation device for the article to be sewn ( 3 ) and/or needle rod movement.  
   
   
       14 . A device according to  claim 13 , further comprising a storage medium ( 34 ,  56 ) for saving sewing data.