The present invention relates to an apparatus for molding cogs for suture thread. More specifically, the apparatus of the present invention comprises: a first molding means for molding cogs on the upper end of a supplied suture thread; a second molding means for molding cogs on the lower end of the suture thread having multiple cogs on the upper end thereof molded by the first molding means; a first tension means disposed on the front side of the first molding means to prevent twisting of the suture thread and retain tension of the suture thread to guide the suture thread to the first molding means; and a second tension means interposed between the first and the second molding means to prevent twisting of the suture thread and retain tension of the suture thread to guide the suture thread to the second molding means. According to the present invention, cogs can be readily molded on the upper end and the lower end based on the a horizontal line passing through the center of the transferring suture thread and multiple cogs can be simultaneously molded, thereby increasing productivity and enhancing work efficiency.
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