The invention belongs to the field of die technology. At present, the effect of die feeding for casting is poor, and the casting is prone to shrinkage defects. In view of the problems in the prior art, the invention discloses a casting mould for continuous feeding moulding of castings. A gate is provided on the mould, and the gate is connected with a cross channel through a straight gate. The straight gate includes a cylindrical channel and an arc channel, the cylindrical channel is connected with the gate, and the arc channel is located in a cylindrical channel. Below, the top of the arc passage is connected with the cylindrical passage, and the bottom of the arc passage is connected with the transverse passage. The inner passage is connected with the transverse passage in the die. The shape of the inner passage is the same as that of the casting. There is also a feeding passage in the die. The feeding passage is set at the junction of the transverse passage and the inner passage, and the feeding passage is set at the junction of the transverse The channel is connected with both the transverse channel and the inner runner. The invention has simple structure and good feeding effect for casting.
【技术实现步骤摘要】
一种铸件连续补缩成型的铸造模具
本专利技术涉及一种模具,具体涉及一种铸件连续补缩成型的铸造模具,属于模具
技术介绍
在生产实践中,很多废品铸件是由于产生了缩松缩孔造成的,即铸件浇注后,液体金属在凝固过程中,体积要缩小,如果得不到足够液体来补充,就会在铸件最后冷却的地方产生缩松和缩孔。图1所示这类铸件在铸造时容易在A位置处出现缩孔,目前用于铸造该类铸件的模具通常采用普通砂型冒口进行补缩,补缩效果差,产品合格率低。
技术实现思路
针对现有技术中的问题,本专利技术提供一种铸件连续补缩成型的铸造模具,该模具通过设置相互配合的补缩通道和直浇道,可以实现对铸件铸造时的连续补缩,补缩效果好。为实现以上技术目的,本专利技术的技术方案是:一种铸件连续补缩成型的铸造模具,所述模具上开设有浇注口,浇注口通过直浇道与横通道相连通,直浇道包括圆柱形通道和弧形通道,圆柱形通道与浇注口相连通,弧形通道设于圆柱形通道下方,弧形通道顶端与圆柱形通道相连通,弧形通道底端与横通道相连通,所述模具内设有内浇道,内浇道与横通道相连通,内浇道与铸件形状相同,所述模具内还设有补缩通道,补缩通道设置在横通道与内浇道的连接处,补缩通道与横通道和内浇道均连通。本专利技术模具结构简单,通过设置相互配合的补缩通道和直浇道,在热量补缩过程中,补缩通道给A位置处铸件供给热量,直浇道给补缩通道处铸件供给热量,创造了一个从需要补缩的热节位置向补缩冒口连续的凝固顺序,可以实现对铸件铸造时的连续补缩,补缩效果好;此外,通过将直浇道现有圆台状的内腔改进为圆柱形通道与弧形通道,增大了直浇道的内腔容积,增加了冒口补缩热容量 ...
【技术保护点】
1.一种铸件连续补缩成型的铸造模具,所述模具上开设有浇注口,浇注口通过直浇道与横通道相连通,所述模具内设有内浇道,内浇道与横通道相连通,内浇道与铸件形状相同,其特征在于,所述直浇道包括圆柱形通道和弧形通道,圆柱形通道与浇注口相连通,弧形通道设于圆柱形通道下方,弧形通道顶端与圆柱形通道相连通,弧形通道底端与横通道相连通,所述模具内还设有补缩通道,补缩通道设置在横通道与内浇道的连接处,补缩通道与横通道和内浇道均连通。
【技术特征摘要】
1.一种铸件连续补缩成型的铸造模具,所述模具上开设有浇注口,浇注口通过直浇道与横通道相连通,所述模具内设有内浇道,内浇道与横通道相连通,内浇道与铸件形状相同,其特征在于,所述直浇道包括圆柱形通道和弧形通道,圆柱形通道与浇注口相连通,弧形通道设于圆柱形通道下方,弧形通道顶端与圆柱形通道相连通,弧形通道底端与横通...
【专利技术属性】
技术研发人员:曲家龙,游庆荣,岳涛,
申请(专利权)人:无锡蠡湖增压技术股份有限公司,
类型:发明
国别省市:江苏,32
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