The molding machine is roughly divided into three main parts:

1. Electric control part:

Traditional injection molding machines use contact relays to switch various actions. They often fail due to loose contact screws and aging contacts. Usually, they should be replaced with new ones after one million uses to ensure the stability of the electronic control. In particular, environmental factors such as dust adhesion and humid air will also affect the machine's operation.

Modern injection machines use contactless integrated circuits, which greatly reduces the connection of wires, significantly improves the undesirable phenomena caused by the wires, and improves the stability.

2. Institutional part:

The part of the mechanism should be regularly maintained and lubricated to reduce the coefficient of friction and reduce wear. The nuts and locking screws on the head plate should be checked regularly to prevent the elder pillar from breaking due to uneven force.

The mold thickness adjustment mechanism should regularly check whether the large gear or chain of the drive shaft is offset or slack. Whether the screw of the pressure plate on the gear is loose, whether the lubricating grease is enough, etc.

3. Oil pressure part:

In the hydraulic system, attention should be paid to the cleanliness of the hydraulic oil to maintain the quality of the hydraulic oil. The stable and high-quality hydraulic oil should be used. In addition to regular replacement, its working temperature should be properly controlled below 50C to avoid deterioration. And affect the stability of hydraulic action.

step:

1. The high pressure setting of mold clamping is 135bar, 10%; the low pressure speed is set to 20%, the low pressure position is set to 100mm; the low pressure time is set to 5 seconds.

2. Use the advance and retreat of the mold adjustment to establish the clamping force; take the maximum value of the pressure gauge rise when the system pressure gauge is at high pressure when the mold is closed, and refer to the clamping force hydraulic pressure comparison table.

3. Set the low pressure position to zero after opening the mold.

4. Press to close the mold until the mold is in contact and release immediately. At this time, the movable mold position is assumed to be "X", and the low pressure position is set to "X+1" mm.

5. Then set the low-voltage protection width: the low-voltage protection width is the distance from low speed to low pressure.

6. The set low-voltage protection time is usually 1.2 seconds.