The utility model relates to a hot box sand shooting nozzle comprises a sand shooting nozzle body and T type shunt block; the sand shooting nozzle body is provided with a cavity in the cavity of the T type shunt block enlargement and sand shooting nozzle body fit, and its narrow and sand shooting nozzle the inner chamber of the body between the formation of a material channel; the T type shunt block enlargement part is provided with a cavity and a sand shooting nozzle body connected material cavity, and the upper end is connected with the material cavity extends to the narrowed portion, a lower end part is provided with a discharge cavity narrowed, the receiving cavity side wall a material passage communicated with the plurality of feed through holes; the several back side wall material cavity is provided with a material passage communicated with the through hole. The sand shooting nozzle of the utility model has the advantages of simple structure and reasonable structure, and can block the outflow of sand after the sand spraying nozzle is finished by shooting sand, thereby reducing the waste of the coated sand and the cleaning work in the later stage.
【技术实现步骤摘要】
一种新型热芯盒射砂嘴
本技术涉及铸造领域,特别是涉及一种新型热芯盒射砂嘴。
技术介绍
热芯盒是热芯盒射芯机上的专用芯盒,制芯时芯盒被加热到200℃至250℃的高温且受到芯砂的冲刷。如图1所示,其是现有技术热芯盒的结构示意图。现有的热芯盒一般包括射砂板10、射砂嘴30和模具本体30,所述射砂嘴30设置在射砂板10的内腔中并连通射砂板10的入砂口E和模具本体30的模具型腔C。如图1箭头方向所示为覆膜砂的射砂路线,覆膜砂从射砂板10的入砂口E流进射砂嘴30,流经射砂嘴30后从射砂嘴30的下料端最终进入到模具本体30的模具型腔C中,完成射砂工作。当射砂嘴30射砂完毕后,射砂嘴30随着射砂板10一起与模具本体30相互分离,然而,射砂嘴30在分离的过程中继续出砂,最终导致模具本体30的表面堆积了大量的散砂,造成了覆膜砂的资源浪费,还增加了后期的清洁工作,同时降低了生产的效率。为了解决上述问题,现有技术中采用单独增加挡砂板来阻塞砂子的外流,但这种技术方案的缺点在于,增加了工人的重复劳动强度,每次射砂完毕后需要人工将射砂板放进去,射砂作业时又将挡砂板抽出来。另外,这种技术方案对外 ...
【技术保护点】
一种新型热芯盒射砂嘴,其特征在于:包括射砂嘴本体和T型分流块;所述射砂嘴本体设有一中通的内腔,所述T型分流块套设于所述射砂嘴本体的内腔中;所述T型分流块的上部为膨大部,下部为收窄部,所述T型分流块的膨大部与射砂嘴本体的内腔配合,且其收窄部与射砂嘴本体的内腔之间形成一物料通道;所述T型分流块的膨大部设有与射砂嘴本体的内腔相通的接料腔,且该接料腔延伸至收窄部的上端,所述收窄部的下端设有出料腔,所述接料腔与出料腔上下设置并相互隔离;所述接料腔的侧壁设有连通所述物料通道的若干个分料通孔;所述出料腔的侧壁设有连通所述物料通道的若干个回流通孔。
【技术特征摘要】
1.一种新型热芯盒射砂嘴,其特征在于:包括射砂嘴本体和T型分流块;所述射砂嘴本体设有一中通的内腔,所述T型分流块套设于所述射砂嘴本体的内腔中;所述T型分流块的上部为膨大部,下部为收窄部,所述T型分流块的膨大部与射砂嘴本体的内腔配合,且其收窄部与射砂嘴本体的内腔之间形成一物料通道;所述T型分流块的膨大部设有与射砂嘴本体的内腔相通的接料腔,且该接料腔延伸至收窄部的上端,所述收窄部的下端设有出料腔,所述接料腔与出料腔上下设置并相互隔离;所述接料腔的侧壁设有连通所述物料通道的若干个分料通孔;所述出料腔的侧壁设有连通所述物料通道的若干个回流通孔。2.根据权利要求1所述的新型热芯盒射砂嘴,其特征在于:所述若干个分料通孔的轴线方向垂直于所述接料腔的轴线方向。3...
【专利技术属性】
技术研发人员:吴志强,张建勇,
申请(专利权)人:广东富华铸锻有限公司,
类型:新型
国别省市:广东,44
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