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    • 6. 发明申请
    • APPARATUS FOR RETAINING A HEATER AND THERMOCOUPLE ON AN INJECTION MOLDING NOZZLE
    • 用于在注射成型喷嘴上保持加热器和热电偶的装置
    • WO2004041504A1
    • 2004-05-21
    • PCT/CA2003/001385
    • 2003-09-10
    • HUSKY INJECTION MOLDING SYSTEMS LTD.
    • PILAVDZIC, JimFARMER, CharlesVON BUREN, StefanLAWRENCE, Thomas
    • B29C45/27
    • B29C45/1782B29C45/2737B29C2045/274B29C2045/2745
    • An apparatus for retaining a heater on an injection molding nozzle comprises a retaining body configured to fit around the injection molding nozzle. The retaining body has two flanges extending inward. One is configured to be received in a groove in the injection molding nozzle; the other is configured to be received in a groove in the heater. An axial slot allows the retaining body to elastically spread outward. The retaining body also has at least one aperture that receives a thermocouple. The aperture is preferably an elongated hole having an axis parallel to a longitudinal axis of the retaining body. Preferably the heater is a thick-film heater and the thermocouple is installed adjacent one on the resistive elements of the thick-film heater. When the resistive elements produce different heat levels, the thermocouple is preferably installed adjacent the resistive element that produces the greatest heat.
    • 用于将加热器保持在注射成型喷嘴上的装置包括构造成围绕注射成型喷嘴安装的保持体。 保持体具有向内延伸的两个凸缘。 一个被配置为容纳在注射成型喷嘴中的凹槽中; 另一个被配置为被接收在加热器中的凹槽中。 轴向槽允许保持体向外弹性扩展。 保持体还具有至少一个接收热电偶的孔。 该孔优选为具有平行于保持体的纵向轴线的轴的细长孔。 优选地,加热器是厚膜加热器,并且热电偶被安装在厚膜加热器的电阻元件上。 当电阻元件产生不同的热量时,热电偶优选地安装在产生最大热量的电阻元件附近。