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Injection molding machine can't open mold failure analysis

by:Hisson     2020-10-22
In the process of injection molding machine maintenance, often can't open mould failure, can't open mold of the main points: the pressure no action, by stress action, no pressure no action three kinds of failure phenomenon. From the analysis of injection molding machine manufacturer for you here under some related analysis of injection molding machine can't open mold failure. A. Have no action first look at the output pressure plate cavity valve shows that the light is not bright, light, if that computer output is normal, there is something wrong with the computer to open mold valve line, the simplest way is to a man with a small pencil top mould opening valve, another person to open the action, if can smoothly after top mould, is confirm the route, to pull a thread can solve, Circuit problem) 。 2. Pressure mould actions, but can't open mold that normal output board, output plate to the valve circuit is normal. There are four kind of situations: 1. Clamping cylinder piston fastening screws, screw in the hair in cylinder, piston rod stuck. 2. Mechanical lock, the best way to lock down the mold tubing, operating with a jack and so on mechanical damage. 3. Machine heave caused by fixed cause ( Such as ground edge burn, etc. ) 。 4. (which is caused by the interference of Oil and circuit) , in the event of a valve core, and cavity movement situation, oil pump injection mould opening to reach the required pressure and flow rate, of course also cannot open mould; Another kind of interference is the interference of the circuit, such as mould line and the open wire have mutually, because the mould valve and the open valve work at the same time, the pressure is about 20 kilograms, also can't open mold. 3. No pressure no action but check for normal computer output plate, pressure speed, output cavity valve, computer homepage has showed that this kind of circumstance, we will check the other actions, such as shoot, shoot a found all normal, explain this phenomenon belongs to mould oneness, general examination for one open action, another person to use multimeter, measuring cavity valve if there is a 22 - coil voltage - - - - - - Around 30 v, if you have, we will put mould pull out plug valve coil, open the action, if pressure without action, as long as we open mold under the oil cylinder, surely there is a piston from panasonic piston rod. Finally, points out because of the injection molding machine injection molding machine manufacturer is approximately the same oil, cavity there is this kind of situation, other actions. Repair machine is summarized, from the simple and complex fault we found repairing the machine, in a nutshell, largely from the circuit, oil, mechanical, hydraulic, four aspects change constant the Pope. General said complex, we should pay attention to the order of troubleshooting, from simple to complex, namely, circuit, hydraulic pressure, oil, machinery, if inappropriate, check order is both laborious and time-consuming to fix it.
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