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    • 4. 发明申请
    • APPARATUS AND METHOD WITH SPECIFICALLY PROVIDED DEVICE FOR AUTOMATIC BURST DETECTION IN BLOW MOULDED CONTAINERS
    • 具有特殊设备的装置和方法,用于在吹塑容器中自动检测
    • WO2004045832A1
    • 2004-06-03
    • PCT/EP2003/009926
    • 2003-09-08
    • SIPA S.P.A.VENDRAMELLI, OttorinoZOPPAS, Matteo
    • VENDRAMELLI, OttorinoZOPPAS, Matteo
    • B29C49/78
    • B29C49/783B29C49/16B29C49/80
    • Apparatus for blow moulding hollow plastic bodies from plastic preforms, or parisons, which is adapted to detect bursts occurring in plastic bottles. To this purpose, the apparatus itself comprises a differential pressure transducer arrangement (10, 11), a low-pressure gas supply source (103) along with a related first supply channel (101), a high-pressure gas supply source along with a related second supply channel (105). The differential pressure transducer arrangement is made up by one or more tubes (3, 4) arranged crosswise in the second supply channel; these tubes contain respective separate chambers opening (5, 6) into the interior of said second supply channel (Pitot tubes). Two sensors (7, 8) adapted to detect respective pressures are connected in a distinct manner to said respective chambers. Any possible pressure variation at pre-determined moments during the blow-moulding cycle is processed and compared, and the result is an indication of whether a serious irregularity, such as a burst or a silent gas leakage, took place during the blow-moulding process of a given bottle.
    • 用于从塑料预制件或型坯吹塑中空塑料体的装置,其适于检测在塑料瓶中发生的爆裂。 为此,设备本身包括压差传感器装置(10,11),低压气体供应源(103)以及相关的第一供应通道(101),高压气体供应源以及 相关的第二供应通道(105)。 差压传感器装置由在第二供应通道中横向布置的一个或多个管(3,4)构成; 这些管将分开的各个开口(5,6)分隔开,进入第二供应通道(皮托管)的内部。 适于检测相应压力的两个传感器(7,8)以不同的方式连接到所述各个室。 在吹塑循环期间在预定时刻的任何可能的压力变化被处理和比较,结果是在吹塑过程中是否发生严重的不规则性,例如爆裂或静音的气体泄漏的指示 一个给定的瓶子。