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    • 9. 发明申请
    • PROCESS FOR FORMING CONTAINERS, WHICH COMPRISES A STEP OF FLUSHING THE INTERNAL VOLUME OF THE CONTAINER OF VARIABLE DURATION OVER AT LEAST ONE GIVEN COMPENSATION TIME
    • 形成容器的方法,其包括以至少一个补偿时间冲洗容器的内部容积的步骤
    • WO2009044067A2
    • 2009-04-09
    • PCT/FR2008051603
    • 2008-09-09
    • SIDEL PARTICIPATIONSDERRIEN MIKAELPROTAIS PIERRICK
    • DERRIEN MIKAELPROTAIS PIERRICK
    • B29C49/66B29C49/06B29C49/12B29C49/36B29C49/78
    • B29C49/66B29C49/06B29C49/12B29C49/36B29C49/78B29K2067/00Y02P70/271
    • Process for forming containers from a blank, preferably a preform, made of a thermoplastic, the containers being formed using a stretch-blow moulding machine of rotary type comprising at least one blow-moulding mould mounted on the periphery of a carousel rotated continuously about its axis, the blow-moulding mould operating in cyclic manner according to a blow-moulding cycle comprising the following steps: a step of placing a preheated blank in a blow-moulding mould; a step of closing the blow-moulding mould; a step of blowing the blank in the blow-moulding mould; a step of flushing the inside of the container with a cooling gas, by injecting air thereinto; a step of grasping the blow-moulded container by external gripping means; and a step of opening the blow-moulding mould, which process consists in automatically varying the duration of said flushing step at each start of production of the containers, in a temporary and evolving manner for a few minutes, in order to establish, in said containers, thermal conditions enabling the first containers to be formed at a temperature that gives them a final volume corresponding to the final volume of the containers formed during the stead-state operation of said stretch-blow moulding machine.
    • 用于由热塑性塑料制成的坯件,优选预成型件形成容器的方法,所述容器使用旋转型拉伸吹塑机形成,所述旋转型拉伸吹塑机包括至少一个吹塑模具,所述吹塑模具安装在旋转盘周围连续旋转 所述吹塑模具根据吹塑循环以循环方式操作,所述吹塑模具包括以下步骤:将预热坯料放置在吹塑模具中的步骤; 关闭吹塑模具的步骤; 将坯料吹入吹塑模具中的步骤; 通过向其中注入空气而用冷却气体冲洗容器内部的步骤; 通过外部夹持装置夹持吹塑容器的步骤; 以及打开吹塑模具的步骤,该过程包括在每次开始生产容器时自动改变冲洗步骤的持续时间,以临时和演变的方式持续几分钟,以便在所述 容器的热状态使得第一容器能够形成的温度使得它们的最终体积对应于在所述拉伸吹塑机的稳态操作期间形成的容器的最终体积。