Oil discharge structure of looper mechanism on sewing machine

Abstract

The invention provides an oil draining structure of a sartorial looper mechanism. The oil draining structure comprises a base body oil draining part arranged on a sliding block base and a block oil draining groove formed in the upper surface of a sliding block body, the oil inlet end of the block oil draining groove is communicated with a block through hole, and the oil outlet end of the block oil draining groove is communicated with the base body oil draining part. According to the oil draining structure, oil liquid accumulated at the upper end of the block through hole of the sliding block body can be effectively drained away in time, and the phenomenon that due to the fact that oil liquid moves along with an upper looper sliding bar, stitches and sewing materials are polluted by the oil liquid scattered to the upper portion of the upper looper sliding bar is avoided. The oil draining structure is simple in structure, convenient to process, capable of reducing the cost and good in oil draining effect.

Description

technical field [0001] The invention relates to the technical field of an oil discharge structure of a sewing machine, in particular to an oil discharge structure of a looper mechanism on a sewing machine. Background technique [0002] The upper looper slider of the upper looper mechanism of the sewing machine moves at high speed in the slider through hole of the slider body. The upper looper slider needs enough lubricating oil during high-speed movement, and the excess lubricating oil will be absorbed by the upper looper slider. Bring the tape up to accumulate at the upper end position of the slide through hole. Then along with the upward movement of the upper looper slide bar, it will fly upwards, polluting the suture and sewing material. There are two types of solutions at present. One type has an oil discharge groove around the slider, relying on the gravity of the oil itself and the centrifugal force generated by the rotary motion of the slider to drain the oil to the ...

AI Technical Summary

Problems solved by technology

Then along with the upward movement of the upper looper slide bar, it will fly upwards, polluting the suture and sewing materials

There are two types of solutions at present. One type has an oil discharge groove around the slider, relying on the gravity of the oil itself and the centrifugal force generated by the rotary motion of the slider to drain the oil to the space below the slider through the oil discharge groove. The disadvantage of this type is that the effect is poor, and there is a risk that the lower oil will be brought up again by the slider; one type installs a rubber oil scraper in the slider, so that the upper looper slide rod passes through the rubber oil scraper, by Rubber wiper for oil scraping

The disadvantage of this type is that the rubber oil scraping parts are worn during the movement, which affects the oil scraping effect

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