Design of injection mould for internal thread plastic cap
The interal thread on the plastic cap couldn't be removed by forced demoulding,it need install a mechanical transmission mechanism on the mould to rotate the thread core.The outer cyl-inder of the plastic cap was designed to prevent the product from rotating in the cavity.According to the product structure,a mould with four cavities were designed,and the four cavities were ar-ranged in a square manner.In order to improve production efficiency and make the internal thread starting point of different injection batches of products consistent,the demoulding mechanism that driven by the"inclined guide post+rack+gear"to rotate the threaded core was used.In order to prevent the inclined guide post from driving the screw core rotation immediately when opening the mould,the angled pin was set up with the function of delay opening the mould.
internal threadconsistencyangle pinrackdelay opening die
NETL
NSTL
万方数据
