Flexible connection device for air flotation needle rod of industrial sewing machine

Abstract

The invention discloses a flexible connection device for an air flotation needle rod of industrial sewing machine. The flexible connection device comprises an energy absorption barrel, an end face buffer pad, a fixing ring, a side buffer pad, a supporting rod, a needle sleeve, a needle rod, a rubber buffer pad, a rubber connection sleeve, an energy absorption spring, a transmission block, a slider, a supporting block, a buffer spring, an axial roller, radial rollers, a slide rail, a transmission sleeve and a tail end buffer pad. By the rubber buffer pads, radial vibration applied to the supporting rod can be absorbed effectively so as to prevent the defect of needle rod positioning inaccuracy caused by vibration of the supporting rod; by the energy absorption spring, energy received by thesupporting rod in the axial direction can be absorbed to further improve accuracy of the needle rod; under the action of the transmission sleeve, the tail end buffer pad, the axial roller and the radial rollers, the needle rod is enabled to react timely on the premise that energy absorption of the rubber buffer pads and the energy absorption spring is unaffected, and accordingly normal operationof the needle rod is unaffected.

Description

technical field [0001] The invention relates to a flexible connection device, in particular to a flexible connection device for an air-floating needle bar of an industrial sewing machine, and belongs to the technical field of industrial sewing machine parts. Background technique [0002] Industrial sewing machines are sewing machines suitable for sewing workpieces for mass production in sewing factories or other industrial sectors. Clothes, shoes and hats, and other factories that need sewing machines use industrial sewing machines. In industrial sewing machines, there is a part called air-floating needle bar, which is the main output part of industrial sewing machines. [0003] The air-floating needle bar is connected to the slider by a rod body. When the slider slides in the chute, it drives the air-floating needle bar to move up and down, so as to carry out sewing processing. Since the slider and the chute are slidingly connected, there is a certain cooperation The gap, ...

AI Technical Summary

Problems solved by technology

[0003] The air-floating needle bar is connected to the slider by a rod body. When the slider slides in the chute, it drives the air-floating needle bar to move up and down, so as to carry out sewing processing. Since the slider and the chute are slidingly connected, there is a certain cooperation The gap, during the movement of the slider, will produce slight vibration, and the air-floating needle bar and the slider are usually rigidly connected, and the vibration will be transmitted to the air-floating needle bar. When in use, the air-floating needle will The vibration of the rod affects the accuracy of the industrial sewing machine; if a complete flexible connection is used between the air-floating needle bar and the slider, it may cause the air-floating needle bar to respond untimely, thus affecting the normal operation of the sewing machine

Images