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    • 3. 发明申请
    • APPARATUS FOR COMPRESSION MOULDING PREFORMS FOR SYNTHETIC RESIN CONTAINERS
    • 用于合成树脂容器的压缩成型预制件的装置
    • WO2005058572A1
    • 2005-06-30
    • PCT/EP2004/014164
    • 2004-12-13
    • SACMI COOPERATIVA MECCANICI IMOLA SOCIETA' COOPERATIVAPARRINELLO, FiorenzoZUFFA, ZenoBALBONI, Alessandro
    • PARRINELLO, FiorenzoZUFFA, ZenoBALBONI, Alessandro
    • B29C43/42
    • B29C43/50B29B11/12B29C33/303B29C33/44B29C43/08B29C43/42B29C49/02B29K2105/253B29L2001/00
    • The apparatus is for compression moulding synthetic resin preforms by pressure-inserting a mould punch (15) into a die cavity (20a) loaded with a charge (8). The preforms (9) comprise an upper neck (91) provided with projections and a hollow body (92) positioned below the neck (91). The apparatus is characterized in that each die comprises a first tubular element (51) which is axially fixed during the charge loading and moulding stage, and a second tubular element (52) which is axially movable telescopically relative to the first tubular element (51), to assume a first position in which it projects out of the first tubular element (51) to a maximum extent in order to increase the axial dimension of the die cavity (20a), and a second position in which it is retracted into the first tubular element (51) to a maximum extent in order to define the die cavity (20a) provided for the final moulding stage, and thrust means (80) to normally maintain said second tubular element (52) in its first position, the action of said thrust means (80) being overcome during the moulding stage.
    • 该装置用于通过将模具冲头(15)压入到装载有电荷(8)的模腔(20a)中来压缩模制合成树脂预制件。 预型件(9)包括设置有突起的上颈部(91)和位于颈部(91)下方的中空本体(92)。 该装置的特征在于,每个模具包括在充电装载和模制阶段期间轴向固定的第一管状元件(51)和可相对于第一管状元件(51)可轴向移动的第二管状元件(52) 为了增加模腔(20a)的轴向尺寸,第一位置将其从第一管状元件(51)突出到最大程度,并且第二位置被缩回到第一管状元件 管状元件(51)以最大限度地限定为最终模制台设置的模腔(20a)和推动装置(80),以将所述第二管状元件(52)正常地保持在其第一位置, 所述推力装置(80)在成型阶段被克服。