Abrégé

A handbag forming machine and a bag body turning device thereof. The bag body turning device (200) comprises an input mechanism, a turning mechanism and an output mechanism. The input mechanism comprises a first roller set (500) including a driving shaft (510) and a driven shaft (520). Groups of driving wheels (511) and paper conveying rollers (512) are axially arranged on the driving shaft (510) side by side. Groups of driven wheels (521) and paper pressing rollers (522) are axially and correspondingly arranged on the driven wheel (520) side by side. The turning mechanism comprises a second roller set (600) including a turning roller (610) and a guide wheel mechanism. The driving wheels (511) and the turning roller (610) are surrounded by a lower endless belt (628). The driven wheels (520) and the guide wheel mechanism are surrounded by an upper endless belt (627). A bag body (100) inputted by the input mechanism is conveyed to the turning roller for turning by means of the upper and lower endless belts. The output mechanism comprises a paper tray (700) and a paper pushing device (800) for pushing the bag body out of the paper tray. By means of the turning mechanism, the bag body finishing an upper opening folded process is turned around and then transported to bottom sticking process via the bag body turning device, thereby realizing automatic and continuous running of the hand bag forming machine, and improving production efficiency of hand bags.

Classes IPC  ?

• B31B 1/74 - Opérations auxiliaires
• B31B 29/00 - Mécanismes caractérisés par le fait que les enveloppes ou sacs fabriqués comportent un fond configuré spécialement pour tenir compte de l'épaisseur du contenu

Abrégé

A paper bag machine and a paper upper-opening folding device. The paper upper-opening folding device (200) comprises a support assembly and an upper-opening folding assembly. The support assembly comprises a support rod (260), a paper passing plate (270) and a paper cushion block (280). The upper-opening folding assembly comprises a baffle plate (230) and bent pieces (240). The paper passing plate (270) is arranged on the upper surface of the support rod (260), the outer end of the paper passing plate (270) protrudes from the outer side surface of the support rod (260), the rear side surface of the paper cushion block (280) is closely attached to the inner end surface of the support rod (260) and the inner end surface of the paper passing plate (270), and the upper surface of the paper cushion block (280) is in the shape of a downward-inclined slope. The baffle plate (230) is fixed at the upper end of a baffle plate fixing rod (231), and the bottom surface of the baffle plate (230) is attached to the upper surface of the paper cushion block (280). The bent pieces (240) are arranged at the upper end of the baffle plate (230), a slide groove (241) is formed in the upper end of each bent piece (240), and the up-and-down positions of each bent piece (240) can be adjusted along with the slide groove (241). The paper bag machine and the paper upper-opening folding device have advantages of being simple in structure, convenient to operate, multi-purpose, and high in production efficiency.

Classes IPC  ?

• B31B 1/26 - Pliage des feuilles, flans ou bandes