The utility model relates to a mould field, discloses an engine cylinder left exterior core, including the core and the gating system and pouring system comprises a sprue and runner cup, pouring cup is provided with a funnel-shaped hole communicated with the pouring cup, pouring cup and an inner hole of the sprue, runner cup and type one of the core forming, the pouring cup shape for the narrow width of the trapezoid body. Due to the integral forming of the gate cup and the core, the process of making the gate cup and the bonding process between the core and the gate cup are reduced, and the yield of the casting is increased, and the production cost and labor cost are reduced. The integral molded gate cup adopts the upper and narrow columns, which increases the contact area between the gate cup and the core, and increases the stability of the connection between the gate cup and the core. It ensures that during the pouring process, the runner cup is not overturned by molten iron, which improves the production efficiency.
【技术实现步骤摘要】
一种发动机缸体左外型芯
本技术涉及模具领域,具体涉及一种发动机缸体左外型芯。
技术介绍
传统的发动机缸体的左外型芯与浇口杯是分离的,在浇注时,通过人工涂抹粘接剂将型芯与浇口杯粘接在一起,在粘接过程中会出现粘接剂涂抹较多,造成粘接剂溢出,在浇注时粘接剂通过直浇道进行型腔,造成铸件报废;或者是粘接剂涂抹较少,浇口杯粘不牢固,或在粘接时浇口与浇口杯内孔下部未对准,在浇注时浇口杯被铁水冲翻,造成铸件不能成型;并且在粘接压紧浇口杯时,浇口杯或型芯易产生的摩擦,使型砂掉入直浇道内,造成产品报废。综上所述,传统分离式的浇口杯的在使用过程中操作繁琐,产品易报废,并且增加了浇口杯制作工序和型芯与浇口杯粘接工序。
技术实现思路
本技术的目的在于:针对上述分离式浇口杯在使用过程中存在的技术问题,本技术提供一种发动机缸体左外型芯。本技术采用的技术方案如下:一种发动机缸体左外型芯,包括型芯和浇注系统,所述的浇注系统包括直浇道和浇口杯,浇口杯上设置有漏斗形的浇口杯内孔,浇口杯内孔与直浇道相通,所述的浇口杯与型芯一体成型,其浇口杯的形状为上窄下宽的梯形台体。由于采用了上述技术方案,本技术的有益效果是: ...
【技术保护点】
一种发动机缸体左外型芯,包括型芯(1)和浇注系统,所述的浇注系统包括直浇道(2)和浇口杯(3),在所述的浇口杯(3)上设置有漏斗形的浇口杯内孔(4),浇口杯内孔(4)与直浇道(2)相通,其特征在于:所述的浇口杯(3)与型芯(1)一体成型,其浇口杯(3)的形状为上窄下宽的梯形台体。
【技术特征摘要】
1.一种发动机缸体左外型芯,包括型芯(1)和浇注系统,所述的浇注系统包括直浇道(2)和浇口杯(3),在所述的浇口杯(3)上设置有漏斗形的浇口杯...
【专利技术属性】
技术研发人员:谢许祥,张强波,
申请(专利权)人:四川省祥业机械铸造有限公司,
类型:新型
国别省市:四川,51
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