■ Computer Controller PLC
Professional injection moulding machine controller with software and hardware of industrial standard is convenient to expansion and revision of performance.
Adopting double CPU control makes high speed.
Mainly adopting PID control, the control accuracy reaches±1°.
Has the function of network management, improving efficency.
■ The Mould Adjusting Units
The automatic mold adjusting device driven by hydraulic motor adopts gear coupling drive, features steadiness, high-efficiency and saving mold loading time.
| SPECIFICATION |
HJF-140 |
| |
A |
B |
C |
| Screw Diameter |
Mm |
38 |
42 |
45 |
| Screw L/D Ration |
L/D |
22.1 |
21.6 |
19.5 |
| Shot Size(Theoretical) |
cm3 |
193 |
227 |
278 |
| Injection Weight(PS) |
g |
176 |
206 |
252 |
| Injection Rate |
g/s |
94 |
105 |
135 |
| Injection Pressure |
MPa |
205 |
159 |
140 |
| Screw Speed |
rpm |
0~220 |
| Clamp tonnage |
KN |
1400 |
| Opening stroke |
mm |
380 |
| Space Between Tie Bars |
mm |
420*420 |
| Max.Mold Height |
mm |
450 |
| Min.Mold Height |
mm |
170 |
| Ejector Stroke |
mm |
120 |
| Ejector Tonnage |
KN |
33 |
| Max.Pump Pressure |
MPa |
16 |
| Pump Motor Power |
KW |
13 |
| Heater power |
KW |
7.2 |
| Machine Dimension(L*W*H) |
M |
4.5*1.2*1.7 |
| Machine weight |
T |
4.2 |
| Oil Tank Capacity |
L |
230 |
Hardened steel: Typically the most expensive material to use for a mold, and generally the longest-lasting (which can drive down price per unit). This makes hardened steel a good material choice for products where multiple hundreds of thousands are to be produced.
Prehardened steel: Does not last as many cycles as hardened steel, and is less expensive to create.
Aluminum: Most commonly used for single cavity "Prototype Tooling" when a relatively low number of parts are needed for testing. Once the injection molded parts from this tool are tested and approved, then a multi cavity steel production tool is produced. It is possible to get many thousands of parts from an aluminum tool but typically it is used for lower quantities.
Beryllium-Copper alloy: Typically used in areas of the mold that need fast heat removal or where shear heat is concentrated.
Just as with overall product design, mold design is another opportunity to prevent defects during the injection molding process. We have previously written blogs on the Top 10 Injection Molding Defects and Avoiding Mistakes in Injection Molding, but here are some examples of how poor mold design can be a costly mistake:
Not designing the proper draft: This refers to the angle at which the finished product is ejected from the mold. An insufficient draft can lead to ejection problems, costing significant time and money.
Improperly placed or sized gates: Gates are the openings in a mold through which thermoset or thermoplastic material is injected. Each will leave a vestige (scar), which can create aesthetic or functional problems if not properly placed.
The number of parts (cycles) required, as well as the material they will be made of will help drive decision-making as to how and with what materials to create the mold.
When a product has been properly designed, approved, and die cast, it’s time to start the actual manufacturing! Here are the basics of the injection molding process…
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