| 摘要 |
An under trimming device for a multi-needle sewing machine with multiple longitudinally extended loopers mainly including a cutting part and a clamping part. Both the cutting and the clamping parts are longitudinally and reciprocatingly movable, so that multiple looper threads may be pulled by multiple movable catchers of the cutting part into the clamping part before they and corresponding needle threads are simultaneously cut by a fixed cutter of the cutting part, permitting free ends of the cut threads to have uniform length and being held at the same position.
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