| 摘要 |
The apparatus allows to automatically change bobbin cases in quilting machines. The apparatus comprises a pick-up element which is mounted on a carriage which can move between a magazine which contains full cases and a hook assembly of a sewing machine in which an empty case is to be replaced. The pick-up element extracts the empty case and deposits it into a specifically provided container. It is further positioned at the magazine, from which it removes a full case and transfers the case into the hook assembly.
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