Abrégé

A sewing machine movable blade structure, a thread cutting device, a thread cutting method, a control program of the thread cutting method, and a sewing machine. The sewing machine movable blade structure comprises a movable blade body (1); a first cutter (4) is arranged on the movable blade body (1); a second cutter (5) is arranged corresponding to the first cutter (4); the second cutter (5) comprises a needle falling slot (6) and a second cutter edge (7); at the beginning of sewing, the needle falling slot (6) corresponds to a falling position of a sewing machine needle. The movable blade structure has a simple structure, a sewing thread and a thread residue can be cut off, redundant thread residues or bird nest-like thread residues on sewn clothes are effectively avoided, the labor intensity of workers is effectively reduced while the quality of the clothes is guaranteed, and the labor efficiency is improved.

Classes IPC  ?

• D05B 65/00 - Dispositifs pour sectionner le fil de l'aiguille ou le fil du dessous dans les machines à coudre
• D05B 65/06 - Dispositifs pour sectionner le fil de l'aiguille ou le fil du dessous dans les machines à coudre et pour évacuer les bouts de fils sectionnés
• D05B 19/12 - Machines à coudre commandées par programme comprenant une mémoire électronique ou une unité de commande par microprocesseur caractérisées par la commande du fonctionnement de la machine

Abrégé

A rotary hook basket, comprising a rotary hook basket body (1). A positioning slot (2) and a rotary hook basket needle slot (3) are formed in an extension section of the rotary hook basket body. A positioning column mounting base (4) is provided on the hook basket body. The distance between two sides of the rotary hook basket needle slot is not uniform, so that during sewing, a gap between a needle and the rotary hook basket needle slot is adjustable. In the rotary hook basket, the gap between an edge of the rotary hook basket needle slot and the needle can be effectively adjusted, so that a good needle protection effect is achieved, the adaptability of the rotary hook basket is improved, and a good sewing effect is ensured. Also disclosed is a rotary hook structure comprising the rotary hook basket.

Classes IPC  ?

• D05B 57/26 - Porte-canettes ou boîtes à canetteProtection de porte-canettes ou de boîtes à canetteDispositifs d'évacuation de la canette
• D05B 57/10 - Navettes

Abrégé

A rotary hook shuttle structure, comprising a rotary hook shuttle body (1), a mounting base (2) being arranged on the rotary hook shuttle body (1), a mounting hole (3) being formed on the mounting base (2), a rotary hook shuttle bowl (4) being arranged in the rotary hook shuttle body (1), a retaining ring (5) being arranged on the rotary hook shuttle body (1), a first tail hook (8) being arranged on the retaining ring (5), a retaining ring edge strip (6) matching the rotary hook shuttle bowl (4) being arranged on the retaining ring (5), a rotary hook shuttle skin (7) being arranged on the rotary hook shuttle body (1) to correspond to the retaining ring (5), and a second tail hook (9) corresponding to the first tail hook (8) being arranged on the rotary hook shuttle body (1). The present rotary hook shuttle structure effectively prevents the sewing thread from curling, ensuring the quality of the sewing thread stitches and improving the clothes sewing quality.

Classes IPC  ?

• D05B 57/14 - Navettes avec crochets rotatifs