Manufacturing method and manufacturing device of tire belt
AssigneeToyo Tire & Rubber Co., Ltd.
InventorJunji Itakura
Life of this patent
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Abstract
A manufacturing method includes cutting out a sheet-like belt for one full circle of tire by cutting a master roll diagonally with respect to a longitudinal direction between a master roll table 10 and a belt table 14, moving the belt table 14 carrying the cut-out sheet-like belt to a winding position of the sheet-like belt, winding the sheet-like belt around a winding cylinder 50 at the winding position, and unwinding the sheet-like belt from the winding cylinder 50 in a place facing a molding drum 64 and forming a cylindrical belt by winding the sheet-like belt around the molding drum 64.
Claims10
A manufacturing method of a tire belt for manufacturing a sheet-like belt first from a master roll formed by covering multiple belt cords lined up parallel to one another with rubber while aligning a longitudinal direction in an extending direction of the belt cords, and then forming a cylindrical belt by winding the sheet-like belt around a molding drum, comprising:
- placing the master roll on a master roll table;
- feeding the master roll from the master roll table to a belt table situated adjacent to the master roll table in a same direction as the longitudinal direction of the master roll;
- cutting out a portion of the master roll placed on the belt table as the sheet-like belt for one full circle of tire by cutting the master roll diagonally with respect to the longitudinal direction between the master roll table and the belt table;
- moving the belt table carrying the cut-out sheet-like belt for one full circle of tire to a winding position of the sheet-like belt;
- winding the sheet-like belt for one full circle of tire around a single winding cylinder at the winding position;
- moving the sheet-like belt wound around the winding cylinder to a place facing the molding drum;
- and
- unwinding the sheet-like belt from the winding cylinder in the place facing the molding drum and forming the cylindrical belt by winding the unwound sheet-like belt around the molding drum in one full circle.
A manufacturing device of a tire belt manufacturing a sheet-like belt first from a master roll formed by covering multiple belt cords line up parallel to one another with rubber while aligning a longitudinal direction in an extending direction of the belt cords, and then forming a cylindrical belt by winding the sheet-like belt around a molding drum, comprising:
- a master roll table on which the master roll is placed;
- a belt table situated adjacent to the master roll table and accepting the master roll fed from the master roll table;
- a cutting device cutting out a portion of the master roll placed on the belt table as the sheet-like belt for one full circle of tire by cutting the master roll diagonally with respect to the longitudinal direction between the master roll table and the belt table;
- a moving device moving the belt table carrying the cut-out sheet-like belt for one full circle of tire from a cutting position to a winding position of the sheet-like belt;
- a winding cylinder around which the sheet-like belt for one full circle of tire is wound at the winding position;
- and
- the molding drum around which the sheet-like belt unwound from the winding cylinder is wound in one full circle.
Dependencies are inferred from the claim text.