Method for manufacturing roll mold, roll mold manufacturing apparatus, non-transitory computer readable medium, and roll mold

A roll mold manufacturing apparatus, comprising:

• a rotating device comprising:
• a supporter configured to support an axis of a roll having a cylindrical or circular column shape in a circumferential direction, and a rotator configured to rotate the roll in a circumferential direction,
• a rotary encoder connected to the rotating device, configured to output a signal corresponding to a rotary position of the roll;
• a cutting tool stage holding a cutting blade, the cutting tool stage being movable in a radial direction of the roll;
• a signal generating unit configured to generate a control waveform, a waveform of the control waveform corresponding to a position of the cutting blade, in a radial direction of the roll, at each rotary position determined by the signal;
• and
• a controlling unit configured to move the cutting tool stage in the radial direction of the roll such that, while the rotating device rotates the roll, the cutting blade reciprocates in the radial direction of the roll in accordance with the control waveform to make a plurality of cuts on a surface of the roll,
• wherein:
• the plurality of cuts comprises a predetermined number of cuts of predetermined depth at each of a plurality of predetermined locations of the roll, based on the control waveform;
• and
• in multiple cuts made at a predetermined location, each subsequent cut will have a smaller depth than a preceding cut.

A non-transitory computer readable medium storing instructions that, when executed by a processor, cause the processor to perform operations, the operations comprising:

• receiving a signal outputted from a rotary encoder, the signal corresponding to a rotary position of a roll having a cylindrical or circular column shape;
• generating a control waveform, a waveform of the control waveform corresponding to a position of a cutting blade held by a cutting tool in a radial direction of the roll at each rotary position determined by the signal;
• and
• causing the cutting tool stage to move in the radial direction of the roll such that, while the roll is rotated, the cutting blade reciprocates in the radial direction of the roll in accordance with the control waveform, thereby making a plurality of cuts on a surface of the roll,
• wherein:
• at each of a plurality of predetermined locations of the roll, a predetermined number of cuts of predetermined depth are made based on the control waveform;
• and
• in multiple cuts made at a predetermined location, each subsequent cut will have a smaller depth than a preceding cut.