Flexible connecting device convenient for adjusting air floating needle rod of industrial sewing machine

Abstract

The invention discloses a flexible connecting device convenient for adjusting the air floating needle rod of an industrial sewing machine. The flexible connecting device comprises a pull rope, a needle rod seat, a hook, a fixing ring, a needle rod connecting plate, a threaded rod, a sprocket, a mounting frame, a through hole, a telescopic pole, a pinion, a gearwheel, a torsional spring, a fixing plate, a sliding plate, a take-up reel, a lag, a spring, a threaded hole, a mounting base, a vertical rod and a bull stick. According to the flexible connecting device provided by the invention, through mutual cooperation of the pull rope, the torsional spring, the lag, the sliding plate, the spring and the fixing plate, buffering can be well provided to the needle rod connecting plate, the needlerod connecting plate can be prevented from having a crash during sliding, the balance of the needle rod connecting plate is maintained, and the practicability of the connecting device is improved; through mutual cooperation of the sprocket, the gear, the telescopic pole and the thread groove, the position of the air floating needle rod can be adjusted better, therefore, the use of an operator canbe more convenient, and the practicability is also enhanced.

Description

technical field [0001] The invention relates to a coupling device, in particular to a flexible coupling device for an air-floating needle bar of an industrial sewing machine that is easy to adjust, and belongs to the technical field of industrial sewing machines. Background technique [0002] Industrial sewing machines are sewing machines that are suitable for mass production in sewing factories or other industrial sectors. Industrial sewing machines are used in factories that require sewing machines such as clothing, shoes and hats. The driving force for the slider is transmitted to the needle bar through the needle bar connecting column, so that when the slider slides up and down in the chute seat, it drives the needle bar to move up and down in the bushing, realizing the synchronization between the slider and the needle bar sports. [0003] The existing needle bar connecting plate will slide when it is working, and the deviation of the actual movement direction of the ne...

AI Technical Summary

Problems solved by technology

[0003] The existing needle bar connecting plate will slide when it is working, and the deviation of the actual movement direction of the needle bar connecting plate from the given direction will occur due to the small gap of the needle bar connecting plate, so that the needle bar connecting plate Collision occurs, and there is a rigid connection between the needle bar and the needle bar seat, this displacement movement and force will be completely transmitted to the needle bar through the rigid connection, thereby causing damage to the needle bar, and the position of the existing air-floating needle bar Most of them are fixed, which will make some staff uncomfortable to use

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