CENTRAL MECHANISM OF TIRE VULCANIZER

• Main Authors: ASADA MITSUNORI, KINO NATSUJIROU, NAKAGAWA KAZUHIKO, FUJIEDA YASUHIKO, KAWAHARA MASAKATSU, AMANO ITARU
• Format: Patent
• Language: English
• Published: 27.05.1982
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To obtain the titled device which is provided with a good transmission efficiency and capable of conducting well-balanced processing by equalizing heat loss of top and bottom annular bodies, by employing, as a driving device, a screw-rotating body by a screw nut and a step capable of converting the rotating body motion into symmetrical up-and-down linear motion. CONSTITUTION:Motive force of a motor 30 is transmitted to a screw shaft 35 through a transmitting body 32, and a rotary moving body consisting of a ball 36, a nut cylindrical body 37 and a bush 38 is turned by being screwed. A supply pipe 40 and a discharging pipe 41 are made to pass through a notched section 38A of the bush 38, and they are engaged with respect to the rotating direction, and therefore, the rotary motion is converted to a linear motion, and a top annular body 18 is lowered. A pressing medium is supplied from the supply pipe 40 into an elastic forming body 11, and shaping is conducted. After a mold is tightened by a top mold element 6, the thermal pressing medium is supplied from the supply pipe 40 into the elastic forming body 11 while increasing pressure of the pressing medium, and vulcanizing formation is conducted while being heated by top and bottom elements 2 and 6.