Method for embroidering three-dimensional workpieces

Abstract

A method for embroidering three-dimensional workpieces (2) uses an embroidery machine (100) with at least one embroidery head (101) for embroidering and at least one embroidery frame (1) for positioning the workpiece (2). The workpiece (2) is moved by means of the embroidery frame (1) by at least two angles (Θ, μ, ω) in relation to at least two axes (X, Y, Z), which are in relation to the movement axis of the embroidery head (101) positioned to introduce at least one stitch of embroidery into the workpiece (2).

What is claimed is: 
     
         1 . A method for embroidering a workpiece using an embroidery machine that comprises an embroidery head for embroidering and an embroidery frame for positioning the workpiece, comprising:
 positioning the workpiece by pivoting the embroidery frame about at least two angles around at least two axes which are arranged non-parallel in relation to an axis of movement of the embroidery head; and   introducing a stitch of an embroidery into the workpiece.   
     
     
         2 . The method according to  claim 1 , wherein positioning the workpiece includes
 pivoting the workpiece about a lateral axis,   pivoting the workpiece about a longitudinal axis, and   rotating the workpiece in a vertical axis.   
     
     
         3 . An embroidery frame for positioning a workpiece relative to an embroidery head in an embroidery machine, comprising:
 at least one drive for pivoting the workpiece about at least two angles.   
     
     
         4 . The embroidery machine as in  claim 3 , further comprising
 at least one embroidery head for embroidering, and   at least one embroidery frame for positioning the workpiece, the at least one drive being operatively connected to the at least one embroidery frame.   
     
     
         5 . The embroidery machine according to  claim 4 ,
 further comprising a plurality of embroidery frames, and   at least one embroidery head assigned to each of the embroidery frames.   
     
     
         6 . The embroidery machine according to  claim 4 ,
 wherein the embroidery machine is a post bed embroidery machine and comprises at least one post.   
     
     
         7 . A method for controlling an embroidery machine having an embroidery frame for pivoting a workpiece by at least two angles, comprising:
 pivoting the embroidery frame about two spatial axes to place the workpiece into a new position by controlling drives that are operatively connected to the embroidery frame.   
     
     
         8 . The method as in  claim 7 , further comprising
 determining the new position of the workpiece based on predetermined coordinate triplets.   
     
     
         9 . The method as in  claim 7 , further comprising
 calculating the new position of the workpiece stepwise from continuously transferred coordinates for each stitch of an embroidery.