Apparatus for roll stamping

An apparatus for roll stamping, the apparatus comprising:

• an inclined roll set including a first rotation roll and a second rotation roll rotating while facing each other, wherein each of the first rotation roll and the second rotation roll having a fixed position and an angle inclined with respect to a traveling direction of a material,
• wherein a first forming portion for forming the material is formed on an outer surface of the first rotation roll,
• the first forming portion includes a first circumferential groove portion inclined at an oblique angle rather than a right angle with respect to a rotation shaft of the first rotation roll,
• a second forming portion for forming the material is formed on an outer surface of the second rotation roll,
• the second forming portion includes a first circumferential protrusion part inclined at an oblique angle rather than a right angle with respect to a rotation shaft of the second rotation roll, and
• the first forming portion and the second forming portion have shapes corresponding to each other and registering with each other,
• the inclined roll sets are arranged in plural at predetermined intervals from each other in the traveling direction of the material,
• wherein in a case in which a number of inclined roll sets is plural, the inclined roll sets are arranged in such a way as to be misaligned on opposite sides based on a center of the material in a width direction in such a way as not to interfere with each other.