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苏州机床厂生产的微震压实式造型机,在压实过程中需将压头摆动一定角度(ZB1410为112°30＇),以便进行装砂、砂箱翻转及起模等动作。压头的摆动是用摆动油缸来实现的。为了减少冲击,在油缸到达终点置位时,需要有缓冲装置。这种装置可在液压回路中设置减压阀、溢流阀,或在油缸内设缓冲头(柱塞)。目前ZB1410造型机所用的缓冲装置是在油缸盖上用一缓冲头与活塞孔d_4相配合。由于采用了标准圆锥形缓冲头,因而缓冲效果不好,其原因是缓冲头与活塞孔之间所形成的环形油路(阻尼环)不能满足限制油缸摆
The microseismic compacting machine produced by Suzhou Machine Tool Plant needs to swing the indenter at a certain angle during the compaction process (ZB1410 is 112 ° 30 ’) for the purpose of loading sand, turning the flask and removing the mold. Indenter swing is achieved using a swing cylinder. In order to reduce the impact, when the cylinder reaches the end of the set, the need for a buffer device. This device can be set in the hydraulic circuit pressure relief valve, relief valve, or buffer in the cylinder head (plunger). ZB1410 molding machine used in the current buffer device is used in the cylinder head with a buffer head and piston hole d_4 match. As a result of the standard conical buffer head, and thus the damping effect is not good, because the buffer head and the piston ring formed between the annular oil passage (damping ring) can not meet the restrictions cylinder