The utility model discloses a hydraulic control device for the needle valve of the 120T injection molding machine, including the main cylinder and the auxiliary oil cylinder that controls the needle valve of the injection molding machine. The main oil cylinder and the auxiliary oil cylinder are connected to the main hydraulic pump and the auxiliary hydraulic pump through the hydraulic circuit respectively. The main hydraulic pump and the main oil cylinder are connected with the main electromagnetic reversing valve with the control oil path. The hydraulic circuit between the main oil cylinder and the main hydraulic pump also has the main overflow valve and the main throttle valve to control the oil pressure. The hydraulic circuit between the auxiliary oil cylinder and the sub hydraulic pump is connected with the auxiliary electromagnetic reversing valve controlling the oil path and the auxiliary relief valve and the auxiliary throttle valve controlling the oil pressure, the main hydraulic pump and the auxiliary hydraulic pump. The hydraulic oil tank is also connected. Through the main and the auxiliary electromagnetic reversing valves, the injection molding machine can be conveniently controlled by the single injection or double shooting mode. When the dual fire mode is opened, the oil path pressure is adjusted by the main, the auxiliary throttle valve and the synchronous valve to realize the synchronous action of the main oil cylinder and the auxiliary oil cylinder, and the injection molding is more stable and reliable.
【技术实现步骤摘要】
120T注塑机针阀液压控制装置
本技术涉及汽车注塑件生产
,尤其涉及120T注塑机针阀液压控制装置。
技术介绍
随着科技的进步,在现代化生产的过程中,自动化程度越来越高,在注塑件生产领域,传统的单射式注塑机效率较低,一些对称的注塑件也需要逐个去完成注塑,费时费力,因此,效率较高的双射式注塑机的应用就越来越普遍了,而目前120T双射式注塑机的副射机大都自身没有液压控制系统,需从其他机台用长油管连接,其他机台需启动马达供油,比较杂乱麻烦,使用完后需拆装,耗费人力物力,且两个不同的液压控制系统同时使用时,液压不同步,难以控制,注塑的工件有缺陷。
技术实现思路
本技术所要解决的技术问题是提供一种能自动调节压力,可按照实际需要选择液压油缸工作的120T注塑机针阀液压控制装置。为解决上述技术问题,本技术的技术方案是:120T注塑机针阀液压控制装置,设有双工位注塑机头,其中一注塑机头上安装有主针阀,所述主针阀对应设有主油缸,另一所述注塑机头上安装副针阀,所述副针阀对应设有副油缸,所述主油缸通过液压回路连接有主液压泵,所述副油缸通过液压回路连接有副液压泵,所述主液压泵连通有主电磁换向阀,所述主电磁换向阀出油端的油路上设有同步阀,所述同步阀的出油端连接至所述主油缸上,所述主油缸与所述同步阀之间的管路上还连通有主溢流阀,所述主液压油缸的回油端通过主节流阀连通至所述主电磁换向阀,所述副液压泵连通有副电磁换向阀,所述副电磁换向阀的出油端连接至所述副油缸上,所述副油缸与所述副电磁换向阀之间的管路上连通有副溢流阀,所述副液压油缸的回油端通过副节流阀连通至所述副电磁换向阀,所述主液压泵和 ...
【技术保护点】
1.120T注塑机针阀液压控制装置,设有双工位注塑机头,其中一注塑机头上安装有主针阀,所述主针阀对应设有主油缸,另一所述注塑机头上安装副针阀,所述副针阀对应设有副油缸,其特征在于:所述主油缸通过液压回路连接有主液压泵,所述副油缸通过液压回路连接有副液压泵,所述主液压泵连通有主电磁换向阀,所述主电磁换向阀出油端的油路上设有同步阀,所述同步阀的出油端连接至所述主油缸上,所述主油缸与所述同步阀之间的管路上还连通有主溢流阀,所述主油缸的回油端通过主节流阀连通至所述主电磁换向阀,所述副液压泵连通有副电磁换向阀,所述副电磁换向阀的出油端连接至所述副油缸上,所述副油缸与所述副电磁换向阀之间的管路上连通有副溢流阀,所述副油缸的回油端通过副节流阀连通至所述副电磁换向阀,所述主液压泵和所述副液压泵连接至设于注塑机内的液压油箱。
【技术特征摘要】
1.120T注塑机针阀液压控制装置,设有双工位注塑机头,其中一注塑机头上安装有主针阀,所述主针阀对应设有主油缸,另一所述注塑机头上安装副针阀,所述副针阀对应设有副油缸,其特征在于:所述主油缸通过液压回路连接有主液压泵,所述副油缸通过液压回路连接有副液压泵,所述主液压泵连通有主电磁换向阀,所述主电磁换向阀出油端的油路上设有同步阀,所述同步阀的出油端连接至所述主油缸上,所述主油缸与所述同步阀之间的管路上还连通有主溢流阀,所述主油缸的回油端通过主节流阀连通至所述主电磁换向阀,所述副液压泵连通有副电磁换向阀,所述副电磁换向阀的出油端连接至所述副油...
【专利技术属性】
技术研发人员:任汉龙,
申请(专利权)人:襄阳光瑞汽车零部件有限公司,
类型:新型
国别省市:湖北,42
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