The utility model relates to a sand core processing field, especially with the top core plate quick change mechanism of sand making machine, which comprises a frame, an upper die and a lower die, a top core plate, frame comprises a plurality of supporting rod, the supporting plate and the fixed plate, the support plate is installed on the sand box and a gas storage tank of compressed air. The support plate is provided on the lower end face of the hydraulic push sand shooting hopper and a sand shooting plate, sand shooting plate is fixed in the lower end of the sand shooting hopper, sand box and gas storage tank are connected with sand shooting hopper, the lower the sand shooting plate is provided with a sand shooting nozzle on the mould is provided with sand and sand shooting nozzle relative the following top core plate is connected with the shooting plate, the top core plate comprises a plate body and a push rod is arranged in the following, the sand shooting plate is provided with a driving cylinder, U block and the claw type U block is fixedly arranged on the sand shooting plate, driving cylinder is connected with the sand shooting plate sliding push the cylinder and claw near the sand shooting hopper One end of the U block is hinged with the claw. The utility model carries out rapid loading and unloading of the top core plate by setting a claw.
【技术实现步骤摘要】
带有顶芯板快换机构的制砂机
本技术涉及砂芯加工领域,尤其是带有顶芯板快换机构的制砂机。
技术介绍
汽车发动机的缸体缸盖是汽车上所有铸件中最为复杂、铸造生产难度最大及铸件合格率很低的铸件。这两个铸件一般为铸铁件,也有少数缸盖和缸体是铸铝件,铸铁件通常用的是砂型铸造,铸铝件通常应用低压铸造的生产工艺方法。无论哪种铸造生产工艺,其缸体缸盖的内腔和部分外形结构都要应用砂芯来形成。目前,采用较广泛的工艺为树脂砂热芯盒法,通过制芯机对砂芯进行制造加工。现有的制芯机一般包括顶芯板、上模、下模、射砂嘴和射砂板,上模上竖向开设有砂道,其中树脂砂通过射砂嘴高压喷入上模内,通过上模的砂道进入上模和下模之间,对树脂砂进行高温加热,使其高温融化成型,等待一段时间,进而将砂芯压实成型、然后出砂芯。在出砂芯时,为了防止砂芯粘在上模板上,射砂板的下端面安装有位于上模板上方的顶芯板,射砂板与顶芯板通过螺栓固定连接,顶芯板上有很多的顶杆,出砂芯时,顶芯板移动到与上模板对应的时候,再向下移动,使得顶杆穿过上模板的孔,将砂芯顶出,使得上模板与砂芯脱离,然后下模板向下移动回到原位,再取出砂芯。但是,现有的 ...
【技术保护点】
带有顶芯板快换机构的制砂机,包括机架、上模、下模、顶芯板,所述上模的下表面和下模的上表面均设有加热机构,所述机架包括多个支杆、设置在支杆上端的支撑板和设置在支杆下端的固定板,所述支撑板上安装有砂箱和装有压缩空气的储气箱,支撑板的下端面设有液压推动的射砂斗和射砂板,射砂板固定安装在射砂斗的下端面,砂箱和储气箱均与射砂斗连通,射砂板的下端设有射砂嘴,所述上模内设有与射砂嘴相对应的砂道,所述顶芯板连接在射砂板的下面,所述顶芯板包括板本体和设置在下面的顶杆,其特征在于,所述射砂板上设有推动气缸、U型块和卡爪,U型块固定设置在射砂板上,推动气缸与射砂板滑动连接,推动气缸与卡爪靠近射砂 ...
【技术特征摘要】
1.带有顶芯板快换机构的制砂机,包括机架、上模、下模、顶芯板,所述上模的下表面和下模的上表面均设有加热机构,所述机架包括多个支杆、设置在支杆上端的支撑板和设置在支杆下端的固定板,所述支撑板上安装有砂箱和装有压缩空气的储气箱,支撑板的下端面设有液压推动的射砂斗和射砂板,射砂板固定安装在射砂斗的下端面,砂箱和储气箱均与射砂斗连通,射砂板的下端设有射砂嘴,所述上模内设有与射砂嘴相对应的砂道,所述顶芯板连接在射砂板的下面,所述顶芯板包括板本体和设置在下面的顶杆,其特征在于,所述射砂板上设有推动气缸、U型块和卡爪,U型块固定设置在射砂板上,推动气缸与射砂板滑动...
【专利技术属性】
技术研发人员:王江涛,陈龙,黄党怀,周麟升,邓浩,唐波,陈大元,
申请(专利权)人:重庆新红旗缸盖制造有限公司,
类型:新型
国别省市:重庆,50
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