Suzhou Jiopeng intelligent introduction: How are precision injection parts processed and produced?

Automated production has been popularized in all walks of life, and precision injection parts are no exception. Zhejiang Yiwei precision, stamping, injection molding, fully automated production, greatly improve production efficiency, to ensure product consistency and stability, reduce costs, but also for customers to create higher value. So how are precision injection parts processed and produced in the injection molding machine?

Precision injection parts

1. Heating and preplasticizing

The screw is driven by the transmission system, the material from the hopper is transported forward, compacted, and the material is gradually melted under the mixing action of the heater, the screw and the cutting and friction of the barrel outside, and a certain amount of molten plastic has accumulated in the head of the barrel, and the screw slowly recedes under the pressure of the melt. When the predetermined injection amount is reached, the screw stops rotating and retracts.

2. Mold closing and locking

The clamping mechanism drives the template and the mold moving part installed on the moving template to close and lock the mold moving part on the moving template to ensure that sufficient clamping force can be provided to lock the mold.

3. The injection device moves forward

When the mold closing is complete, the entire injection seat is pushed forward, so that the injection machine nozzle and the mold main gate completely fit.

4. Inject and maintain pressure

After the mold lock and nozzle are completely fitted to the mold, the injection hydraulic cylinder enters the high pressure oil and pushes the screw forward relative to the barrel. The melt accumulated in the head of the barrel is injected into the mold cavity with sufficient pressure, and the plastic volume shrinks due to the decrease in temperature. In order to ensure the density, dimensional accuracy and mechanical properties of the plastic parts, it is necessary to maintain a certain pressure on the melt in the mold cavity. To replenish supplies.

5. Relieve pressure

When the melt at the mold gate freezes, the pressure can be relieved.

6. Step back the injection device

After the pressure relief is completed, the screw can be rotated and retreated to complete the next feeding and pre-plasticizing process.

7. Open mold and push out plastic parts

After the plastic parts in the mold cavity are cooled and shaped, the mold locking mechanism opens the mold and pushes out the plastic parts in the mold.