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公开(公告)号：US20110180166A1
公开(公告)日：2011-07-28
申请号：US13060405
申请日：2008-11-04
IPC分类号： F15D1/00
CPC分类号： B22D17/32 , Y10T137/87249
摘要： A hydraulic circuit of an injection cylinder in a die-casting apparatus, which can achieve IN restriction and OUT restriction in a quickly switchable manner with a single circuit and which allows manufacturing of a high-quality molded product. The hydraulic circuit includes: a first pressure oil path supplying pressure oil to the injection cylinder; a second pressure oil path returning the pressure oil from the injection cylinder; a first flow control valve controlling a flow of the pressure oil through the first pressure oil path; a second flow control valve controlling a flow of the pressure oil through the second pressure oil path; a bypass pressure oil path connected to the second pressure oil path for bypassing the second flow control valve; a bypass on-off valve provided on the bypass pressure oil path and opening/closing the bypass pressure oil path with the pressure oil; and a controller controlling each valve.
摘要翻译： 压铸装置中的注射缸的液压回路，其能够通过单个回路以快速切换的方式实现IN限制和OUT限制，并且允许制造高品质的模制产品。 液压回路包括：向注射缸供给压力油的第一压力油路; 第二压力油路将来自注射缸的压力油返回; 控制压力油通过第一压力油路的流量的第一流量控制阀; 控制压力油通过第二压力油路的流量的第二流量控制阀; 连接到所述第二压力油路以绕过所述第二流量控制阀的旁路压力油路; 设置在旁通压力油路上的旁通开闭阀，并且用压力油打开/关闭旁路压力油路; 以及控制每个阀门的控制器。
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公开(公告)号：US08561400B2
公开(公告)日：2013-10-22
申请号：US13060405
申请日：2008-11-04
IPC分类号： F15B13/044
CPC分类号： B22D17/32 , Y10T137/87249
摘要： A hydraulic circuit of an injection cylinder in a die-casting apparatus, which can achieve IN restriction and OUT restriction in a quickly switchable manner with a single circuit and which allows manufacturing of a high-quality molded product. The hydraulic circuit includes: a first pressure oil path supplying pressure oil to the injection cylinder; a second pressure oil path returning the pressure oil from the injection cylinder; a first flow control valve controlling a flow of the pressure oil through the first pressure oil path; a second flow control valve controlling a flow of the pressure oil through the second pressure oil path; a bypass pressure oil path connected to the second pressure oil path for bypassing the second flow control valve; a bypass on-off valve provided on the bypass pressure oil path and opening/closing the bypass pressure oil path with the pressure oil; and a controller controlling each valve.
摘要翻译： 压铸装置中的注射缸的液压回路，其能够通过单个回路以快速切换的方式实现IN限制和OUT限制，并且允许制造高品质的模制产品。 液压回路包括：向注射缸供给压力油的第一压力油路; 第二压力油路将来自注射缸的压力油返回; 控制压力油通过第一压力油路的流量的第一流量控制阀; 控制压力油通过第二压力油路的流量的第二流量控制阀; 连接到所述第二压力油路以绕过所述第二流量控制阀的旁路压力油路; 设置在旁通压力油路上的旁通开闭阀，并且用压力油打开/关闭旁路压力油路; 以及控制每个阀门的控制器。
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公开(公告)号：US08307884B2
公开(公告)日：2012-11-13
申请号：US13055794
申请日：2009-07-27
申请人： Hiroshi Yukutomo , Akio Yamada
发明人： Hiroshi Yukutomo , Akio Yamada
CPC分类号： B22D17/32 , B22D17/02 , B22D17/2015
摘要： A die casting machine provided with an electric servomotor and a hydraulic cylinder as drive sources for injection is enhanced in operation stability in an injection step. In the injection step, the rotational speed of an injection electric servomotor (3) is pattern-controlled to follow a preset speed command pattern while the forward speed of a piston (5a) caused by driving of an injection hydraulic cylinder (5) is feedback-controlled with an addition signal of the forward speed of the piston (5a) caused by driving of the injection electric servomotor (3) and the forward speed of the piston (5a) caused by driving of the injection hydraulic cylinder (5). Alternatively, the forward speed of the piston (5a) caused by driving of the injection hydraulic cylinder (5) may be pattern-controlled to follow a preset speed command pattern while the rotational speed of the injection electric servomotor (3) is feedback-controlled with the addition signal.
摘要翻译： 设置有电动伺服电动机和液压缸作为喷射驱动源的压铸机在注射步骤中的操作稳定性得到提高。 在喷射步骤中，喷射电动伺服电动机（3）的转速被模式控制为跟随预设速度指令模式，而由喷射液压缸（5）的驱动引起的活塞（5a）的前进速度是反馈 - 通过喷射电动伺服电机（3）的驱动和由喷射液压缸（5）的驱动引起的活塞（5a）的前进速度引起的活塞（5a）的前进速度的相加信号。 或者，由喷射液压缸（5）的驱动引起的活塞（5a）的前进速度可以被模式控制，以遵循预设速度指令模式，同时喷射电动伺服电动机（3）的旋转速度被反馈控制 加上信号。
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公开(公告)号：US20110114281A1
公开(公告)日：2011-05-19
申请号：US13055794
申请日：2009-07-27
申请人： Hiroshi Yukutomo , Akio Yamada
发明人： Hiroshi Yukutomo , Akio Yamada
IPC分类号： B22D17/02
CPC分类号： B22D17/32 , B22D17/02 , B22D17/2015
摘要： A die casting machine provided with an electric servomotor and a hydraulic cylinder as drive sources for injection is enhanced in operation stability in an injection step. In the injection step, the rotational speed of an injection electric servomotor (3) is pattern-controlled to follow a preset speed command pattern while the forward speed of a piston (5a) caused by driving of an injection hydraulic cylinder (5) is feedback-controlled with an addition signal of the forward speed of the piston (5a) caused by driving of the injection electric servomotor (3) and the forward speed of the piston (5a) caused by driving of the injection hydraulic cylinder (5). Alternatively, the forward speed of the piston (5a) caused by driving of the injection hydraulic cylinder (5) may be pattern-controlled to follow a preset speed command pattern while the rotational speed of the injection electric servomotor (3) is feedback-controlled with the addition signal.
摘要翻译： 设置有电动伺服电动机和液压缸作为喷射驱动源的压铸机在注射步骤中的操作稳定性得到提高。 在喷射步骤中，喷射电动伺服电动机（3）的转速被模式控制为跟随预设速度指令模式，而由喷射液压缸（5）的驱动引起的活塞（5a）的前进速度是反馈 - 通过喷射电动伺服电机（3）的驱动和由喷射液压缸（5）的驱动引起的活塞（5a）的前进速度引起的活塞（5a）的前进速度的相加信号。 或者，由喷射液压缸（5）的驱动引起的活塞（5a）的前进速度可以被模式控制，以遵循预设速度指令模式，同时喷射电动伺服电动机（3）的旋转速度被反馈控制 加上信号。
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