Produits et services

Overlock sewing machine; cloth cutting machine; stitching machines; sewing machine; industrial sewing machine table; crimping machine; overlock stitching machines; ironing machine; driving motors other than for land vehicles.

Produits et services

(1) Overlock sewing machine; cloth cutting machine; stitching machines; sewing machine; industrial sewing machine table; crimping machine; overlock stitching machines; ironing machine; driving motors other than for land vehicles.

Produits et services

Sewing machines; cloth cutting machines; benches being parts of industrial sewing machines; machines for the electronic industry.

Abrégé

An automatic rear dragging wheel lifting structure on a sewing machine, relating to the technical field of garment manufacturing devices. The technical problem that an existing rear dragging wheel lifting driving structure is inconvenient to mount and the like are solved. The sewing machine comprises a machine housing (1), a dragging wheel shaft (2) vertically provided on the machine housing (1) and capable of moving up and down, and a rear dragging wheel (3) fixedly provided at a lower end of the dragging wheel shaft (2); the automatic rear dragging wheel lifting structure comprises a lifting block (4) fixedly provided on the dragging wheel shaft (2) and a driving member (5) fixedly provided on an outer side surface of the machine housing (1); a lever (6) capable of swinging and a crank (7) capable of swinging are respectively hinged to the outer side surface of the machine housing (1), one end of the lever (6) is connected to one end of the crank (7) by means of a connecting rod (8), the other end of the lever (6) is connected to an output shaft of the driving member (5), the other end of the crank (7) is connected to the lifting block (4), and the crank (7) swings to drive the lifting block (4) to move up and down. According to the present automatic rear dragging wheel lifting structure, the driving member (5) is provided on the outer side of the machine housing (1), mounting space and moving space are large, the driving member (5) is convenient to mount, detach and maintain, and interference and collision with other parts are avoided.

Classes IPC  ?

• D05B 27/18 - Coupelles d'entraînement
• D05B 27/10 - Moyens d'entraînement de l'ouvrage pour machines à coudre avec organes d'entraînement rotatifs et circulaires
• D05B 29/02 - Dispositifs de commande du presseur
• D05B 69/02 - Entraînements mécaniques
• D05B 69/10 - Dispositifs électriques ou électromagnétiques

Produits et services

Sewing machines; ironing machines; hemming machines; stitching machines; driving motors, other than for land vehicles.

Abrégé

Disclosed are an automatic pressing foot lifting thread-loosening mechanism and a sewing machine. The pressing foot lifting thread-loosening mechanism comprises a motor (1), a pressing foot assembly, a thread-loosening assembly, a pressing foot lifting thread-loosening cam (2), and a pressing foot lifting thread-loosening top plate (3). The pressing foot lifting thread-loosening cam (2) is arranged on a rotating shaft (4) of the motor (1), a first tension spring base (5) being arranged on the end of the pressing foot lifting thread-loosening cam (2) furthest from the rotating shaft (4) of the motor (1), the pressing foot lifting thread-loosening top plate (3) comprising a first bifurcated part (6), a second bifurcated part (7), and a third bifurcated part (8), the middle of the pressing foot lifting thread-loosening top plate (3) being rotatably connected to a machine shell (10) by means of a pressing foot lifting thread-loosening pin (9), a second tension spring base (11) being arranged on the outer end of the second bifurcated part (7), the first tension spring base (5) and the second tension spring base (11) being connected by means of a tension spring (12) such that the surface of an outer column of the second tension spring base (11) is in contact connection with the surface of an outer column of the pressing foot lifting thread-loosening cam (2), the outer end of the first bifurcated part (6) being positioned below a pressing rod guide bracket (13) of the pressing foot assembly, and the outer end of the third bifurcated part (8) being positioned at one side of a thread-loosening auxiliary nail (14) of the thread-loosening assembly. The thread-loosening and pressing foot lifting action of the automatic pressing foot lifting thread-loosening mechanism is controlled by a motor; the structure is compact, and the pressing foot lifting thread-loosening cam (2) is in contact connection with the second tension spring base (11) to drive the pressing foot lifting thread-loosening top plate (3) to rotate; there is little noise, and production costs are low.

Classes IPC  ?

• D05B 47/04 - Dispositifs de commande automatique de tension du fil
• D05B 29/02 - Dispositifs de commande du presseur

Produits et services

Stitching machines; hemming machines; ironing machines; sewing machines; overlock sewing machines; edge sewing machines; cloth cutting machines; panels for industial sewing machines; driving motors, other than for land vehicles.

Produits et services

Printing presses; leather-working machines; sewing machines.

Produits et services

Printing presses; machines for the textile industry; leather-working machines; sewing machines.