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    • 5. 发明专利
    • DEVICE FOR PRODUCING INSULATED STRAND
    • JPS6021118A
    • 1985-02-02
    • JP13176883
    • 1983-07-16
    • KOBE STEEL LTD
    • IKEGAMI YOSHIOKISHI SHIROUTAKASHITA TADASHIAKITA TOSHIAKISATOU HIDEFUMI
    • B21C1/12B29C47/02B29C48/92
    • PURPOSE:To provide a titled device which improves the cooling efficiency of a cooling tank behind an extruder and improves productivity by providing two sets of capstan pulleys which wind back and forth the strands plural times or above in the cooling tank and driving the pulleys with an electromagnetic clutch. CONSTITUTION:A device for producing an insulated strand is cascade-disposed with a let-off machine 1 for a core wire, a wire drawing machine 2, a softener 3 provided with the 1st and 2nd dancer rollers 24, 25, and the 1st capstan device 4, an extruder 5 for extrusion of a plastic provided with a cross head 6 for insulation covering, a cooling water tank 7, the 2nd capstan device 8, the 3rd dancer roller 26, a coiler 9, etc. The 3rd capstan device 28 consisting of two sets of capstan pulleys is disposed in said tank 7 of such device and the strand is wound back and forth plural times or above across the pulleys to improve cooling power. At least one of the above-mentioned capstan pulleys is driven to rotate at about 1.0-1.25 times the line speed of the strand via an electromagnetic clutch 35 by an independent power source 36, by which the increase in the tension on the inlet side of the device 8 is prevented and high productivity is maintained.
    • 10. 发明专利
    • Multi-layer coating crosshead
    • 多层涂层十字架
    • JPS59136231A
    • 1984-08-04
    • JP1171283
    • 1983-01-26
    • Kobe Steel Ltd
    • IKEGAMI YOSHIOKISHI SHIROUTAKASHITA TADASHI
    • B29C47/02B29B7/00B29C47/00B29C47/06B29C47/26B29C47/28B29C47/70B29L31/34
    • B29C47/28B29C47/0014B29C47/128
    • PURPOSE:To provide a multi-layer coating crosshead which makes it possible to obtain a uniform coating with an easy machining, by arranging the crosshead such that a coating material is uniformly developed all over the circumferential regions on the outer peripheral surface of a distributor through a developing passage, a ring-shaped reservoir and a lip. CONSTITUTION:A core material travels through a crosshead body 20 provided at the extruder outlet. The outer peripheral surface of the core material is coated with an inner-layer material, an outer-layer material, etc. by a multi-layer coating crosshead which has the following arrangement: A circumferential distributor 24 supplies a coating material 32, such as an inner- layer material or outer-layer material, to a conical passage 27 communicating with the whole surface of the outer periphery of the core material such that the coating material 32 is uniformly developed in the circumferential direction. The distributor 24 is incorporated concentrically with the core material. The distributor 24 is formed on its outer peripheral surface with the following parts: a recess 33 for receiving the coating material 32; a passage 34 for circumferentially developing the coating material 32 under a pressure drop substantially uniform all over the circumferential regions; a ring-shaped reservoir 37 communicating with the passage terminating end; and an annular lip 38 providing a communication between the reservoir 37, the conical passage 27 and the crosshead body 20 through a predetermined gap.
    • 目的:提供一种多层涂层十字头,其可以通过简单的机加工获得均匀的涂层,通过布置十字头使涂层材料在分布器外周表面的整个圆周区域上均匀地展开, 显影通道,环形储存器和唇缘。 构成:芯材穿过设在挤出机出口处的十字头体20。 芯材的外周表面通过具有以下布置的多层涂层十字头用内层材料,外层材料等涂覆:周向分配器24提供涂层材料32,例如 内层材料或外层材料连接到与芯材的外周的整个表面连通的圆锥形通道27,使得涂层材料32在圆周方向上均匀地展开。 分配器24与芯材同心地并入。 分配器24在其外周面上形成有以下部分:用于接收涂层材料32的凹部33; 用于在整个周向区域上基本均匀的压降下周向地显影涂层材料32的通道34; 与通道终止端连通的环形储存器37; 以及环形唇缘38,其通过预定间隙提供储存器37,锥形通道27和十字头主体20之间的连通。