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The working principle of injection molding machine
Release time:2012-11-27 10:35/Source:admin/Reads:/Enquiry
The injection molding machine is a special plastic molding machinery, plastic thermoplastic melt by heating them to high pressure to quickly flow into the mold cavity, packing and cooling for a period of time, the various shapes plastic products(Like belt hangers, plastic seals, size clips and so on) were came out.

1, the work cycle of the injection molding machine
1) Lock mode: the mold pull fast approaching pull scheduled to die (slow - fast - slow), and confirmed the presence of no foreign body systems to high-pressure, the template lock (to keep the fuel tank pressure).
2) Hit the stage to move bits: radio sets to advance to the specified position (nozzle mold close).
3) Injection: You can set screw speed, pressure and stroke, the barrel front end of dissolved material into the mold cavity.
4) Cooling and packing: set a wide range of pressure and time segment, keep the cylinder pressure, cooling molding cavity.
5) cooling and preplastication: mold cavity products continued cooling, while the hydraulic motor driving the screw rotation before pushing the plastic particles, screw retracted backpressure control set, when the screw is retracted to a predetermined position, the screw stops rotating, injection cylinder set loose retire, is expected to end.
6) Radio station back: after preplastication, the radio station back to the specified location.
7) Mold: mold pull back to its original position (including slow - fast - slow)
8) Top: the thimble top of the products.
Each steps should control well, otherwise the plastic seals, belt hangers, size clips and so on, the products will not so beautiful.

2, the power consumption of the injection molding machine
The power consumption of the injection molding machine is mainly manifested in the following: ①hydraulic system pump energy consumption ②The heater power consumption (3) circulating cooling water pump power consumption (generally more than one injection molding machine injection workshop, shared a cooling water pump ), the entire injection molding machine with the hydraulic pump motor electricity accounts for more than 80% of the electricity, so reduce its power consumption is the key to the energy efficiency of the injection molding machine. Many factories to produce those plastic seals, belt hangers the machine are working on whole day no matter the day or night. If stop the machine and reopen it, it will waste much of power. 
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