A needle bar assembly of a sewing machine and a sewing machine with the needle bar assembly

Abstract

The invention provides a needle bar assembly of a sewing machine and the sewing machine provided with the needle bar assembly, and belongs to the technical field of sewing equipment. The needle bar assembly solves the technical problems that lubricating oil in an existing needle bar assembly easily leaks and the long-time lubricating effect is poor. The sewing machine comprises a machine shell. The needle bar assembly comprises a bar sleeve fixedly arranged on the machine shell and a bar body inserted into the bar sleeve in a sliding mode, an oil storage box is fixedly arranged on the machine shell, the oil storage box is connected with a first oil guide element immersed with grease, and when the bar body ascends, the upper end face of the bar body moves to the end of the first oil guide element; a second oil guide element immersed with grease is arranged in the bar sleeve, the outer circumference of the bar body is sleeved wth the second oil guide element in a sliding mode, and the second oil guide element is connected with the oil storage box through a third oil guide element. The oil storage box is arranged so that the first oil guide element and the second oil guide element can be supplemented with grease conveniently in time after the grease on the first and second oil guide elements is consumed, the long-time lubricating capacity is maintained, and the lubricating effect is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of sewing equipment, and relates to a sewing machine, in particular to a needle bar assembly of the sewing machine and a sewing machine with the needle bar assembly. Background technique [0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. Sewing machine can sew fabrics such as cotton, fiber crops, silk, wool, artificial fiber and products such as leather, plastics, paper, and the stitching that sews out is orderly and beautiful, flat and firm, and sewing speed is fast, easy to use, so it is widely used. The needle bar is an important part of the sewing machine. The needle bar of the sewing machine will wear and generate a lot of heat during high-speed movement. Therefore, it needs enough lubricating oil to lubricate and cool it to ensure the normal operation of the sewing ma...

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Problems solved by technology

[0004] The lubricating structure of the needle bar sleeve in the above-mentioned patent documents immerses lubricating oil into the gap between the needle bar and the needle bar sleeve through the oil wick for lubrication. When the oil in the oil wick is large in the initial stage, it is easy to drip out. less, the needle bar cannot be fully lubricated, which affects the lubricating effect

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