Molding mold and manufacturing method thereof
AssigneeKTX Co., Ltd.
InventorKatsuya Sato
Life of this patent
Estimating the term…
Abstract
A molding mold includes a shell mold provided with a plurality of vacuum suction holes and a backup mold for backing up the shell mold, a back surface of the shell mold and a front surface of the backup mold having the same shape and being fitted to each other. A ventilation groove is formed on the front surface of the backup mold or the back surface of the shell mold, leaving a receiving surface for receiving a mating surface, a plurality of striped grooves and ridges between the striped grooves are formed on the back surface of the shell mold or the front surface of the backup mold, the striped grooves having a feed pitch of 0.5 mm to 5.0 mm and a processing depth of 0.01 mm to 0.4 mm, and the vacuum suction holes and the ventilation groove communicate with each other through the striped grooves.
Claims10
A molding mold comprising:
- a shell mold provided with a plurality of vacuum suction holes;
- and a backup mold for backing up the shell mold, a back surface of the shell mold and a front surface of the backup mold having the same shape and being fitted to each other, wherein:
- a ventilation groove is formed on the front surface of the backup mold or the back surface of the shell mold, leaving a receiving surface for receiving a mating surface;
- a plurality of striped grooves and ridges between the striped grooves are formed on the back surface of the shell mold or the front surface of the backup mold, the striped grooves having a feed pitch of 0.5 mm to 5.0 mm and a processing depth of 0.01 mm to 0.4 mm;
- and
- the vacuum suction holes and the ventilation groove communicate with each other through the striped grooves.
A manufacturing method of a molding mold including a shell mold provided with a plurality of vacuum suction holes and a backup mold for backing up the shell mold, a back surface of the shell mold and a front surface of the backup mold having the same shape and being fitted to each other, the manufacturing method comprising:
- processing a ventilation groove on the front surface of the backup mold or the back surface of the shell mold, leaving a receiving surface for receiving a mating surface;
- and
- cutting the back surface of the shell mold or the front surface of the backup mold with an end mill provided with a non-flat tip to leave a plurality of striped grooves and ridges between the striped grooves as cutting marks, the striped grooves having a feed pitch of 0.5 mm to 5.0 mm and a processing depth of 0.01 mm to 0.4 mm.
Dependencies are inferred from the claim text.