| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing a mold for molding of tires which enable manufacture of siping blades having a complicated three-dimensional shape, require no complicated structure of the counter mold, allow inexpensive manufacture and prevent effectively the positional deviation in the process of bending siping blades because the siping blade is post-processed. SOLUTION: The pressurizing means 1 is formed and operated by making a blade body 4 protrude by a specified length from the molding surface Wa so as to form a tire-molding mold W (referred to as a simple piece of a sectional mold, in this embodiment), causing a pair of mold-holding plates 3a and 3b arranged on the same axial line in the side surface of a type-C frame 2 to hold both of the opposite sides of the tire-molding mold W and pressing the protruded portion 4a of the blade body 4 protruding from the tire-molding mold W held with the pair of the mold-holding plates 3a and 3b by means of a pair of molds 5a and 5b for siping plate molding of the pressurizing mechanism 1 so as to mold the protruded portion 4a into a predetermined shape. COPYRIGHT: (C)2009,JPO&INPIT |
