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    • 1. 发明授权
    • Process for the manufacture of PET containers designed to be filled with
a hot liquid
    • 设计用热液体填充的PET容器的制造工艺
    • US5145632A
    • 1992-09-08
    • US545179
    • 1990-06-28
    • Gerard DenisJean-Michel RuisPaul La Barre
    • Gerard DenisJean-Michel RuisPaul La Barre
    • B29C49/08B29C49/16B29C49/18B29C49/64B29C49/78B29K67/00B29L22/00
    • B29C49/16B29C49/64B29C2049/6646B29C49/18B29C49/783B29K2067/00
    • A process for the manufacture of a polyethylene terephthalate (PET) container from a hollow amorphous PET preform which includes an open end and a closed end, the open end forming a neck section having dimensions already conformed to its final size and shape, the container being able to withstand relatively severe thermal conditions encountered when the container is filled with a hot liquid, without appreciable deformation, including the steps of: a) rapidly heating only the body of the PET preform, exclusive of the neck section, to a temperature at which subsequent longitudinal and transverse stretching cause no stresses in the PET; b) transferring the hot preform from step (a) to a mold whose walls are maintained at a temperature lower than the temperature of the hot preform body; c) longitudinally stretching the preform body while simultaneously transversely expanding it by blow-molding using a pressurized fluid so as to mold the preform body to the shape of the mold cavity; d) rapidly evacuating the pressurized fluid from the molded container of step (c); and e) removing the container from the mold.
    • 一种从中空非晶PET预成型件制造聚对苯二甲酸乙二醇酯(PET)容器的方法,其包括开口端和封闭端,开口端形成尺寸已经符合其最终尺寸和形状的颈部,容器为 能够承受当容器充满热液体时遇到的相对严重的热条件,而没有明显的变形,包括以下步骤:a)仅将PET预制件的主体(不包括颈部部分)快速加热至 随后的纵向和横向拉伸在PET中不产生应力; b)将热预制件从步骤(a)转移到其壁保持在低于热预成型体的温度的温度下的模具; c)纵向地拉伸预成型体本体,同时通过使用加压流体的吹塑使其横向膨胀,从而将预成型体本体模制成模腔的形状; d)从步骤(c)的模制容器中快速排出加压流体; 以及e)从所述模具中取出所述容器。
    • 4. 发明申请
    • METHOD AND EQUIPMENT FOR DECREASING THE CYCLE TIMES OF MACHINES FOR PRODUCING ARTICLES IN THERMOPLASTIC MATERIAL
    • 降低热塑性材料制品生产机器周期的方法与设备
    • US20090302510A1
    • 2009-12-10
    • US12306582
    • 2007-06-22
    • Fabrizio CastellariMoreno MinghettiEmmanuel Velut
    • Fabrizio CastellariMoreno MinghettiEmmanuel Velut
    • B29C49/00B29C49/28
    • B29C49/66B29C49/04B29C49/12B29C49/4289B29C49/783B29C51/427B29C2049/6646B29L2031/712B29L2031/7128B29L2031/7158
    • The method comprises the following sequence of stages of operation: feeding the blowing air into the parison enclosed in the mould (1), with the maximum pressure characteristics required for the blow moulding thermoforming cycle, and maintaining this blowing condition for a minimum period depending on the characteristics of the container to be produced; reducing the blowing air pressure to a specified minimum level sufficient to keep the blown container adhering to the inner walls of the mould (1) which contains and shapes it; discharging the blowing air at low pressure from the inside of the blown container, in such a way that the inner surface of the container is bathed by a flow of air which is constantly renewed at the appropriate flow rate, which rapidly reduces the internal temperature of the container, while the external temperature of the container is reduced by contact with the walls of the mould (1) which are cooled by the forced circulation of a cooling fluid; interrupting the blowing cycle and the said cycle for the discharge of the cooling air at low pressure, and appropriately reducing the pressure inside the formed container, in such a way that the container can be discharged from the mould which can be prepared for the execution of a new operating cycle.
    • 该方法包括以下操作步骤:将吹入空气送入包封在模具(1)中的型坯中,具有吹塑热成型循环所需的最大压力特性,并根据 要生产的容器的特点; 将吹送空气压力降低到足以保持吹塑容器粘附到包含并成形它的模具(1)的内壁的规定的最小水平; 从吹出的容器的内部排出低压吹送空气,使得容器的内表面被以适当流量不断更新的空气流沐浴,这迅速降低了内部温度 容器通过与冷却流体的强制循环冷却的模具(1)的壁接触来减小容器的外部温度; 中断吹送循环和所述循环以在低压下排放冷却空气,并适当地降低成形容器内部的压力,使得容器可以从可以准备执行的模具中排出 一个新的运营周期。