Automatic bending apparatus and marking device for band-shaped work

An automatic bending apparatus for bending a band-shaped work adapted to be fed in a longitudinal direction of said work thereof, comprising:

• a fixed bending jig removably provided so as to be opposed to a side surface of said work, wherein said fixed bending jig comprises:
• a first jig for bending said work in a first direction;
• a second jig for bending said work in a second direction opposite to said first direction;
• a movable base on which said first and second jigs are fixedly mounted in a positional relationship such that said first and second jigs are offset from each other;
• and
• an actuator operatively connected to said movable base for moving said movable base to select one of a first position where said first jig is opposed to one side surface of said work or a second position where said second jig is opposed to another side surface of said work;
• a movable work holder provided movably toward and away from said fixed bending jig, said holder having a passage extending in said longitudinal direction for holding said work therein and permitting passing of said work therethrough, wherein said work is partially projected from an outlet of said passage and is pressed against said fixed bending jig by moving said holder, thereby effecting bending of said work;
• a work feeding device for intermittently feeding said work to project said work from said outlet of said passage of said holder;
• and
• a pair of cutting members opposed to each other for cutting said work across the thickness thereof with said work interposed between said cutting members, said cutting members being mounted on said movable base so as to be offset from said first and second jigs and located downstream of said first and second jigs in respect of said longitudinal directions of said work, said actuator moving said movable base to select one of said first position, said second position, or a third position where said cutting members are opposed to both surfaces of said work.

An automatic bending apparatus for bending a band-shaped work adapted to be fed in a longitudinal direction of said work thereof, comprising:

• a movable work holder:
• a fixed bending jig removably provided so as to be opposed to a side surface of said work, wherein said fixed bending jig has a hollow structure comprising a fixed portion and a bending portion adapted to abut against said side surface of said work to define an opening between said fixed portion and said bending portion, whereby a previously bent portion of said work comes into said opening in the course of approach of said movable work holder to said jig, thereby preventing interference between said work and said jig;
• said movable work holder provided movably toward and away from said fixed bending jig, said holder having a passage extending in said longitudinal direction for holding said work therein and permitting passing of said work therethrough, wherein said work is partially projected from an outlet of said passage, presented on a side of said bending portion opposite said opening in said fixed bending jig, and pressed against said side of said bending portion of said jig by moving said holder, thereby effecting bending of said work;
• and
• a work feeding device for intermittently feeding said work to project said work from said outlet of said passage of said holder.