A needle bar oil-proof structure of a sewing machine and a sewing machine

Abstract

The utility model provides a kind of tooth frame oil-proof structure and sewing machine of sewing machine belongs to sewing machine oil-proof technical field.It solves how to make tooth frame oil seal between not easy to accumulate oil and other technical problems.The tooth frame oil-proof structure of this sewing machine, including tooth frame, oil seal baffle and tooth frame baffle fixed in machine shell, at least two pieces of tooth frame oil seal plate are provided between oil seal baffle and tooth frame baffle, the middle part of tooth frame oil seal plate has the mounting hole for tooth frame to extend, the middle part of tooth frame oil seal plate is equipped with oil return groove, oil return groove extends from the middle part of tooth frame oil seal plate to bottom and can make oil liquid on oil return groove return to machine shell inside.The utility model is equipped with oil return groove in the middle part of tooth frame oil seal plate, when oil liquid enters between two layers of tooth frame, excess oil liquid can be accumulated on tooth frame oil seal plate, then under the action of gravity, oil liquid can return to machine shell inside by the oil return groove on corresponding tooth frame oil seal plate, is recycled and reused, so that tooth frame oil seal plate between not easy to accumulate oil.

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