发明名称 METODO E DISPOSTITIVO PER L'ALIMENTAZIONE DIRETTA A CALDO DI TRATTI DI UN BATTISTRADA ESTRUSO AD UNA MACCHINA DI FORMATURA DI PNEUMATICI DI AUTOVEICOLI
摘要 A method and device for feeding hot portions (4) of extruded tire tread (3) directly to a tire building machine (5), whereby tread portions (4) of given length, obtained by cutting a tread (3) produced continuously by an extruder (2) at a first speed (V1), are fed successively to the tire building machine (5), with no distortion or stretching and at a second speed (V2) differing from the first (V1), by means of a feed device (1) having an input conveyor (11) for receiving the continuous tread (3) at the first speed (V1) and feeding it through a cutting station (12) to an output conveyor (17) at least equal in length to the tread portion (4). During each cycle for feeding each tread portion (4) to the tire building machine (5), the output conveyor (17) undergoes at least four variations in speed, so as to assume, at least once, a speed substantially equal to zero, and three different traveling speeds (V1, V2, V3), of which two (V1, V2) are equal to the first (V1) and second (V2) speed respectively. <IMAGE> <IMAGE>
申请公布号 IT9067319(A1) 申请公布日期 1991.10.28
申请号 IT19900067319 申请日期 1990.04.27
申请人 FIRESTONE INTERNATIONAL DEVELOPMENT S.P.A. 发明人 VORIH WILLIAM J.
分类号 B29D30/08;B29C47/00;B29D30/30;B29D30/58;B29D30/62;B29K21/00 主分类号 B29D30/08
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