Auxiliary tool and method for manufacturing beveled pocket

The invention discloses a beveled pocket manufacturing auxiliary tool and a manufacturing method.The beveled pocket manufacturing auxiliary tool comprises an outer fixing plate, an inner supporting plate, an edge folding plate and a sewing thread guide plate, the outer fixing plate is provided with a containing groove used for containing a to-be-sewn pocket, and the inner supporting plate is arranged in the containing groove and matched with the containing groove; one end of the containing groove is provided with an opening facilitating taking out of the inner supporting plate, one end of the first flanged plate and one end of the second flanged plate extend into the containing groove, the containing groove is covered with the sewing thread guide plate, one end of the sewing thread guide plate is hinged to the outer fixing plate, and the sewing thread guide plate is provided with a guide groove. And the middle part of the pocket to be sewn is arranged between the inner support plate and the sewing thread guid