Synchronous rotary mechanism of sewing needle pole

• Main Author: WANG MANJIANG
• Format: Patent
• Language: English
• Published: 12.08.2015
• Subjects: EMBROIDERING; SEWING; TEXTILES; TUFTING

The utility model belongs to the technical field of the sewing machine technique and specifically relates to a synchronous rotary mechanism of sewing needle pole is related to, including installing the needle bar that is used for the cartridge sewing needle on the upper casing to and drive needle bar pivoted needle bar motor, the upper end of needle bar is worn to establish and is connected a roating seat, and is equipped with the first bearing that presss from both sides tight needle bar on the roating seat, forms rolling friction with first bearing during the needle bar up-and-down motion, on roating seat and the needle bar sleeve fixed connection together, the sleeve passes through second bearing group and establishes on the upper casing on the needle bar, the roating seat is connected with needle bar motor drive the utility model discloses using two bearings to press from both sides tight needle bar, guaranteeing the transmission zero clearance, improve sliding friction for rolling friction, reduce frictional force, the sleeve rotated on the motor drove synchronous pulley and needle bar, and the drive needle bar rotates, and the concentricity of rotatable parts with the needle bar has been guaranteed to this structure, simple structure, design benefit, equitable, improvement that can be very big the product the outward appearance with make the quality, improve the qualification rate of product