| 摘要 |
PURPOSE: A multistage rollover can of the tire building machine is provided to prevent the productivity reduction according to the swap time of the rollover can since the application of the rollover can, which is set to he tire standard change when molding tire, is form in a easy and simple way, and to save the labor and session. CONSTITUTION: The multistage rollover can of the tire building machine includes the steps of; inserting the medium diameter rollover can(1b) into the large diameter rollover can(1a); inserting and uniting the small diameter rollover can(1c) in the medium diameter rollover can; forming the inserting smoothly and accurately through the guide rail(3) and guide groove(2); a fixation pin(4) in which the spring installed, which is installed in the large diameter rollover can, selectively unpenetrating or penetrating the fixing hole(5) which are formed in the medium diameter and small diameter rollover can; and fixing the small diameter rollover can inside the large diameter and medium diameter rollover can by the fixation pin adjusted of the arranged fixing holes.
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