초록 ▼

In a quilting machine two or more series of stitches are applied to the product, the product to which stitches have already been applied being moved forward and/or backward, even over a considerable distance, while the exact superposition of the fabrics is maintained. One embodiment of the machine c

In a quilting machine two or more series of stitches are applied to the product, the product to which stitches have already been applied being moved forward and/or backward, even over a considerable distance, while the exact superposition of the fabrics is maintained. One embodiment of the machine comprises cylindrical containers (10, 11), in which are disposed the rolls (8, 9) of fabric (2, 3) which are to be quilted. During the backward rotation the cloth is wound over the constant diameter of these containers and in this way the tension applied is also constant. In another embodiment, return or loose rollers (160, 170) are provided, which take up a portion of fabric (102, 103) already unwound. The process also permits continuous embroidery, even very complicated embroidery.

대표청구항 ▼

A process for the bidirectional feeding of fabrics in a quilting machine for the application of stitches to a product comprising at least one web of fabric which is unwound from a roll, which comprises the following phases: (a) Unwinding a web of fabric (2,3; 102,103) from at least one roll (8,9; 10

A process for the bidirectional feeding of fabrics in a quilting machine for the application of stitches to a product comprising at least one web of fabric which is unwound from a roll, which comprises the following phases: (a) Unwinding a web of fabric (2,3; 102,103) from at least one roll (8,9; 108,109) during the phase of forward movement and applying a first series of stitches to the fabric during this forward movement; (b) Stopping the movement of the roll (8,9; 108,109) and locking the roll in position; (c) Moving back at least one time a portion of fabric (2,3;102,103) already stitched on in order to form the product by applying further stitches during this backward movement; (d) Resuming the normal unwinding of the fabric from the roll after unlocking the latter.