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    • 81. 发明授权
    • System for keeping the printing plates of a printing press at a moderate
temperature
    • 将印刷机的印版保持在中等温度的系统
    • US5309838A
    • 1994-05-10
    • US9549
    • 1993-01-26
    • Hans-Joachim Kurz
    • Hans-Joachim Kurz
    • B41F7/24B41F13/22B41F31/00B41F33/10B41F23/04B41F30/00
    • B41F7/24B41F13/22B41F31/002
    • A system for keeping the surface (4) of a rotating cylindrical printing plate (6) of a printing press at a moderate temperature. A cooling air blower girder (2) extends longitudinally over the printing plate surface (4) and blows cold air onto the printing plate surface (4), in order to keep its temperature at a desired value. The blast-air girder (2) contains at least one heat exchanger (52) and at least one blower (60) as well as at least one air-return duct (20, 22), which together forms a cooling air cycle, through which the air, blown onto the printing plate surface (4), is returned to the air inlet of the heat exchanger and, optionally mixed with fresh air, blown by the blower (60) once again through the heat exchanger (52) onto the printing plate surface (4). The blast-air girder (2) represents an energy-saving, compact structural unit for keeping the printing plate surface (4) at a moderate temperature.
    • 一种用于将印刷机的旋转圆柱形印版(6)的表面(4)保持在中等温度的系统。 冷却鼓风机梁(2)纵向延伸到印版表面(4)上并将冷空气吹到印版表面(4)上,以便将其温度保持在期望值。 鼓风空气大梁(2)包含至少一个热交换器(52)和至少一个鼓风机(60)以及至少一个回风管道(20,22),它们一起形成冷却空气循环,通过 吹送到印版表面(4)上的空气返回到热交换器的空气入口,并且可选地与新鲜空气混合,由鼓风机(60)再次通过热交换器(52)吹到 印版表面(4)。 喷气空气梁(2)代表用于将印版表面(4)保持在中等温度的节能,紧凑的结构单元。
    • 82. 发明授权
    • Ink temperature control system for waterless lithographic printing
    • 无水平版印刷油墨温度控制系统
    • US5272971A
    • 1993-12-28
    • US929984
    • 1992-08-14
    • Guenther Fredericks
    • Guenther Fredericks
    • B41F31/00B41F7/02B41F31/02
    • B41F31/002
    • A temperature regulation system for a lithographic press, usually of the type using a waterless plate, used to control ink temperature at application to a substrate to be printed. The system includes a contactless sensor for sensing ink temperature between the ink distribution system and application to a substrate and for operating a temperature regulation system that controls the temperature of regulatable rolls in the ink path and thus the sensed ink temperature. This regulation system includes a refrigeration circuit, a secondary heater circuit for obtaining hot fluid, a reservoir for cold fluid and a mixing valve. This system is energy efficient, variable and responsive. It has been found that using this system the ink temperature can be very accurately controlled. Usually the system is used with a waterless plate and it has been found that commercially available lithographic inks as well as the special waterless inks can be used.
    • 用于平版印刷机的温度调节系统,通常是使用无水板的类型,用于控制施加到待印刷基板上的油墨温度。 该系统包括一个非接触式传感器,用于感测油墨分配系统之间的油墨温度和对基板的应用,并用于操作温度调节系统,该温度调节系统控制油墨通路中可调节辊的温度,从而控制油墨温度。 该调节系统包括制冷回路,用于获得热流体的二次加热器回路,冷流体贮存器和混合阀。 该系统是节能,可变和响应。 已经发现,使用该系统可以非常精确地控制油墨温度。 通常该系统与无水板一起使用,并且已经发现可以使用市售的平版印刷油墨以及特殊的无​​水油墨。