Sewing-machine self-lubricating oil-storage connecting rod mechanism

Abstract

The invention discloses a sewing-machine self-lubricating oil-storage connecting rod mechanism. The sewing-machine self-lubricating oil-storage connecting rod mechanism comprises a large connecting-rod eccentric wheel. The surface of an outer ring of the large connecting-rod eccentric wheel is matched with a large connecting rod, one side of the large connecting-rod eccentric wheel is matched with a large-connecting-rod-eccentric-wheel fixing frame, the other side of the large connecting-rod eccentric wheel is matched with a cloth feeding cam pressing piece, a set of felt cushion blocks are arranged in the large-connecting-rod-eccentric-wheel fixing frame, a large-connecting-rod-eccentric-wheel shaft hole is formed in the large connecting-rod eccentric wheel, and an upper shaft is arranged in the large-connecting-rod-eccentric-wheel shaft hole, and sequentially penetrates through the large-connecting-rod-eccentric-wheel fixing frame, the large-connecting-rod-eccentric-wheel shaft hole and the cloth feeding cam pressing piece. The sewing-machine self-lubricating oil-storage connecting rod mechanism has the advantages that when the large connecting-rod eccentric wheel moves, lubricating oil of the felt cushion blocks is automatically oozed out to lubricate the large connecting-rod eccentric wheel, the self-lubricating effect is achieved, it is avoided that abrasion of the large connecting-rod eccentric wheel appears to cause damage, the service life of a sewing machine is prolonged, the felt cushion blocks only need to be filled with lubricating oil during maintaining, the felt cushion blocks can be reused, the using effect is good, and popularization is facilitated.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a self-lubricating oil storage link mechanism of a sewing machine. Background technique [0002] At present, the common sewing machine linkage mechanism on the market is composed of an upper shaft, a large connecting rod, a large connecting rod eccentric wheel, and a cloth feeding cam pressing piece. The large connecting rod eccentric wheel is set in the large connecting rod, and the upper The eccentric wheel of the over-large connecting rod is connected with the large connecting rod. The cloth feeding cam pressing piece is located on one side of the eccentric wheel of the large connecting rod and installed on the upper shaft. The eccentric wheel of the large connecting rod is made of powder metallurgy of oil-containing material, Dalian The lubrication of the rod eccentric wheel is lubricated by the lubricating oil leaked from its own high-speed operation. Since the lubri...

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Problems solved by technology

[0003] The present invention aims to solve the problems existing in the above-mentioned prior art, and provides a sewing machine self-lubricating oil storage connecting rod mechanism, which solves the problem of insufficient lubrication of the large connecting rod mechanism of the sewing machine at present, and satisfies the use requirements of the sewing machine

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