The utility model discloses an ejector pin structure of an injection mould for an automobile ventilation grid, which comprises an ejector pin rod, an ejector pin connecting rod and a locking mechanism; the lower end of the ejector pin connecting rod is provided with a radial convex ring, and the bottom surface of the convex ring is provided with a number of screw holes, which are distributed along the circumferential direction of the convex ring; the upper part of the ejector pin rod has external threads and a locking machine. The structure includes a locking nut, which is connected to the top pin rod by matching external threads. The top end of the pin rod protrudes the top surface of the locking nut, and the top end of the pin rod is against the bottom end of the pin connecting rod. A deformation gap is formed between the locking nut and the convex ring. A number of through holes corresponding to a number of nut holes are arranged on the locking nut. Screws are installed in each through hole and corresponding screw holes. The utility model relates to an ejector structure of an injection mould for an automobile ventilation grid, which is reasonable in structure. The ejector rod replaces the ejector rod to eject injection products, effectively protects the ejector rod, and the connection between the ejector rod and the ejector rod is stable.
【技术实现步骤摘要】
一种汽车通风格栅注塑模的顶针结构
本技术涉及一种汽车通风格栅注塑模的顶针结构。
技术介绍
汽车通风格栅的主要作用在于水箱,发动机,空调等的进气通风,防止行驶中外来物对车厢内部部件的破坏。为实现汽车轻量化的要求,现在一些汽车通风格栅是通过注塑模具制得的注塑制品,注塑制品在成型后必须从模具型腔中取出,而完成这个取出注塑制品动作的机构即为顶出机构。常见的顶出机构通过顶针杆将注塑制品顶出,但传统的顶针结构安装困难,一旦顶针杆需要维修和更换时,需拆卸模具或整个顶针装置,极为不便。
技术实现思路
本技术的目的在于提供一种汽车通风格栅注塑模的顶针结构,其结构合理,通过在顶针杆上连接顶针接杆,由顶针接杆代替顶针杆顶出注塑制品,有效的保护了顶针杆;并且,顶针杆与顶针接杆的连接稳固。为实现上述目的,本技术的技术方案是设计一种汽车通风格栅注塑模的顶针结构,包括顶针杆和位于顶针杆正上方的顶针接杆,以及用于连接顶针杆和顶针接杆的锁紧机构;所述顶针接杆下端设有径向外凸的凸环,该凸环底面设有若干螺孔,该若干螺孔沿凸环的圆周方向均布;所述顶针杆上段具有外螺纹,所述锁紧机构包括锁紧螺母,该锁紧螺母通过与所述外螺纹配合连接于顶针杆,该顶针杆上端凸出锁紧螺母的顶面,且该顶针杆上端抵于上述顶针接杆下端;所述锁紧螺母与上述凸环之间形成变形间隙,该锁紧螺母上设有与上述若干螺孔一一对应的若干通孔,各通孔与对应螺孔中安装有螺钉。在上述方案中,通过在顶针杆上连接顶针接杆,由顶针接杆代替顶针杆顶出注塑制品,有效的保护了顶针杆,在需要拆卸顶针接杆时,只需拧下螺钉,便可取出顶针接杆。另外,由于锁紧螺母与凸环之间形成有变 ...
【技术保护点】
1.一种汽车通风格栅注塑模的顶针结构,其特征在于,包括顶针杆和位于顶针杆正上方的顶针接杆,以及用于连接顶针杆和顶针接杆的锁紧机构;所述顶针接杆下端设有径向外凸的凸环,该凸环底面设有若干螺孔,该若干螺孔沿凸环的圆周方向均布;所述顶针杆上段具有外螺纹,所述锁紧机构包括锁紧螺母,该锁紧螺母通过与所述外螺纹配合连接于顶针杆,该顶针杆上端凸出锁紧螺母的顶面,且该顶针杆上端抵于上述顶针接杆下端;所述锁紧螺母与上述凸环之间形成变形间隙,该锁紧螺母上设有与上述若干螺孔一一对应的若干通孔,各通孔与对应螺孔中安装有螺钉。
【技术特征摘要】
1.一种汽车通风格栅注塑模的顶针结构,其特征在于,包括顶针杆和位于顶针杆正上方的顶针接杆,以及用于连接顶针杆和顶针接杆的锁紧机构;所述顶针接杆下端设有径向外凸的凸环,该凸环底面设有若干螺孔,该若干螺孔沿凸环的圆周方向均布;所述顶针杆上段具有外螺纹,所述锁紧机构包括锁紧螺母,该锁紧螺母通过与所述外螺纹配合连接于顶针杆,该顶针杆上端凸出锁紧螺母的顶面,且该顶针杆上端抵于上述...
【专利技术属性】
技术研发人员:胥新成,严永刚,
申请(专利权)人:苏州双林汽车配件有限公司,
类型:新型
国别省市:江苏,32
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