| 摘要 |
<p>A method and apparatus for stitching a label to material, particularly to a quilted mattress panel, in which the material and the label are joined face side down rather than face side up. The label is held face side down with a clamp (20) and a panel is held over the label by another clamp (25). The label and panel are joined by a sewing machine (100). A mechanism is provided for activating the thread knife (151) of the sewing machine at such a time that the bobbin thread only is cut. A cutter and nipper (80) is provided for cutting and grabbing the thread section (81) on a side of the material facing the sewing machine. A masking mechanism is provided for masking electronic signals of the sewing machine that would otherwise cause the machine to reset at a normal needle height, so that a sewing operation can be stopped with a needle at a maximum clearance position. In a further aspect, pneumatic cylinders (362, 382) and linkage are provided for raising the needle (13) and presser foot (12) even farther at the end end of a stitching operation.</p> |
