| 摘要 |
A method to increase and enhance tire mold height capability of various mechanical tire presses. The method accomplishes mold hold enhancement without imparting appreciable jarring and vibration during press operation. For presses with crank pins pressed into crank gears, the method utilizes removal of the existing crank pin and replacement with an eccentric pin thereby effectively reducing the distance of crank throw by a certain predetermined amount. Side link length is enhanced by a corresponding amount with the result being the repositioning of the press beam by an amount equal to a total of the foregoing. Thereafter, a tire mold of that enhanced height may be accommodated between the beam and base members of the press. In presses with crank pins cast as part of the gears, the method suggests machining off the crank pin from the main body of the crank gear and the boring of an orifice in the gear and the installation of a pin therein, the orifice and pin located so as to provide crank throw equal to the desired crank throw. Further, an increase of side link length of corresponding distance thereby enhances the mold height capability of the mechanical press.
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