Method for manufacturing flexible flat cable

Abstract

The present invention relates to a method for manufacturing flexible flat cable having a reinforcing film adhered without any wasted material to the ends of wires arranged at a connecting portion, so as to prevent the occurrence of peel-off in which the end of the wires arranged at the connecting portion lift off. The method for manufacturing flexible flat cable according to the present invention comprises: step (A) of boring an exposed window (10) at a predetermined gap (S1) in an upper film (F1) that unwinds from a first bobbin (B1); step (B) of feeding a plurality of copper lines (CL) arranged between the upper film (F1) and a lower film (F2), and heating and pressing the upper film (F1) and lower film (F2) using thermal bonding rollers (R1 and R2) to bond the upper film (F1) and lower film (F2) together when the copper lines (CL) are disposed between the upper film (F1) and lower film (F2); step (C) of attaching a first reinforcing plate (30) to a strip of flexible flat cable (F3) having the upper film (F1) bonded with the lower film (F2) so that the first reinforcing plate (30) attached to the lower surface of the lower film (F2) corresponds in position to the exposed window (10) defined in the upper film (F1); step (D) of attaching a reinforcing film (35) to the center of the reinforcing window (10) formed in the upper film (F1) of the strip of flexible flat cable (F3); step (E) of slitting both sides of the strip of flexible flat cable (F3) so that the strip of flexible flat cable (F3) has a predetermined width (d1); step (F) of winding the slit strip of flexible flat cable (F3) on a bobbin (B3); and step (G) of supplying the strip of flexible flat cable (F3) wound on the bobbin to a cutting device, and cutting the central portion of the reinforcing film (35) attached to the strip of flexible flat cable (F3) so as to complete a flexible flat cable (FFC).

Description

technical field [0001] The present invention relates to a method of manufacturing a flexible flat cable. In the method of manufacturing a flexible flat cable of the present invention, a reinforcing film is adhered without waste to the ends of wires arranged The phenomenon of peeling (peel off) caused by the end of the lead wire at the connection part floating. Background technique [0002] The applicant's Republic of Korea Patent Application No. 10-2010-18491 (filed on March 2, 2010) discloses a "flexible flat cable". [0003] The flexible flat cable heat-bonds the upper film and the lower film in a state where a plurality of aligned conductors are arranged in series between the upper film and the lower film, and forms a connecting portion at the end to expose the conductors to the outside. , The upper surface adhesion enhancing film of the leading end of the wire. [0004] However, in the production of the flexible flat cable, the existing method requires a punching machi...

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Problems solved by technology

[0004] However, in the production of the flexible flat cable, the existing method requires a punching machine to cut in front of the front end wire of the connection part or behind the rear end wire, or alternatively, needs to cut twice between the punched windows, so A waste section is generated between cut sections, and after cutting the front end of the flexible flat cable, the rear end of the flexible flat cable is cut, which requires separate measurement of the cut position, reducing productivity

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