A forced oil return mechanism of looper slide bar on sewing machine

Abstract

The invention belongs to the technical field of sewing machines, and particularly to a forced oil return mechanism of an upper looper slide bar of a sewing machine. The forced oil return mechanism of the upper looper slide bar of the sewing machine comprises an upper looper slide bar seat, the upper looper slide bar in an upper looper slide bar hole of the upper looper slide bar seat, the upper looper slide bar seat is fixedly provided with oil absorption cotton, the oil absorption cotton contacts with and is connected to the upper lopper slide bar, the upper looper slide bar seat is provided with an oil return channel, the oil return channel is connected to an oil tube, the oil tube is connected to an oil pump, and the oil pump can make oil on the upper lopper slide bar forcedly return through the oil absorption cotton and the oil return channel. The forced oil return mechanism can make oil on the upper lopper slide bar forcedly return, oil stain can be prevented from being thrown away along with motion of the upper looper slide bar, so no oil stain splashes on the cloth, the cloth will not be polluted, order production cannot be affected. The forced oil return mechanism is good in oil return effect, simple in structure, low in cost and can be applied to the present sewing machine. The oil absorption cotton can be fixed to the upper looper slide bar seat through a cover plate, so the oil absorption cotton is convenient to mount and dismount, only the cover plate needs mounting / dismounting, and other parts do not need mounting / dismounting.

Description

Technical field: [0001] The invention belongs to the technical field of sewing machines, in particular to a forced oil return mechanism of a looper slide bar on a sewing machine. Background technique: [0002] During the working process of the upper looper mechanism, the oil will be thrown out. Therefore, an oil return mechanism needs to be provided to prevent the oil from being thrown out. However, the oil return mechanism of the upper looper mechanism used more at this stage is to throw the oil onto the oil baffle through the high-speed movement of the upper looper slider, and then the oil thrown out flows along the oil baffle to the oil return of the slider seat. hole, and then flow back to the inside of the casing along the oil return hole. But once there is too much oil at the oil return hole or the oil return hole is blocked by lint, dirt, etc., the oil in the slider seat will not flow back into the casing smoothly, but will be thrown out along the slider and splashe...

AI Technical Summary

Problems solved by technology

But once there is too much oil at the oil return hole or the oil return hole is blocked by lint, dirt, etc., the oil in the slider seat will not flow back into the casing smoothly, but will be thrown out along the slider and splashed on the fabric On the other hand, it will cause the pollution of the cloth and affect the orderly progress of production.

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