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    • 10. 发明公开
    • A method for the production of hollow articles of thermoplastic material using two sheets and helping means to pierce one sheet to blow mould the article
    • 一种用于使用两个膜和助剂用于刺穿的膜的产品的吹塑生产由热塑性材料中空体的过程
    • EP1053859A1
    • 2000-11-22
    • EP00102745.7
    • 2000-02-10
    • CRS Srl Centro Ricerche e Sperimentazioni
    • Ravera, Giorgio
    • B29C49/60B29C49/00
    • B29C49/0047B29C49/60B29C2049/6063
    • A method for producing hollow articles of thermoplastic material, comprising the steps of:

      placing a first sheet of thermoplastic material (12), heated at a plasticizing temperature, between two dies (18, 38) which define at least one cavity (20),
      placing a second heated sheet of thermoplastic material (14) above the first sheet (12), and
      closing the dies (18, 38) and injecting a jet of pressurised fluid for forming at least one cavity (16) between said sheets (12, 14).

      One of the said dies (18) has at least one needle (22) connected to a source of pressurised fluid and placed in correspondence with said cavity (20). After the deposition of the first sheet (12) a pressure is applied on the portion of the sheet placed in correspondence with said needle (22) so as to produce the perforation of the sheet (12) by said needle (22).
    • 一种用于生产热塑性材料的中空制品,其包括以下步骤的方法:将热塑性材料(12),在增塑温度下加热的第一片材​​,二所以之间(18,38),限定至少一个空腔(20) 将热塑性材料(14)的第二加热片的第一片材​​(12)的上方,和关闭,以便(18,38)和将加压流体的射流用于形成所述片材之间的至少一个腔体(16)(12, 14)。 其中一个说此(18)的具有连接到加压流体源和对应于所述腔(20)设置在至少一个针(22)。 所述第一片材的沉积之后(12)的压力被施加在片材的相对应放置与所述针(22),以便产生片材(12)通过所述针头(22)的穿孔的部分。