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How to check the clamping force of the connector injection molding machine?

writer:LI SONG Share

How to check whether the clamping force of the connector injection molding machine is sufficient?
1. Gradually increase the injection pressure of the connector injection molding machine. As the injection pressure increases, the spikes increase accordingly. The spikes are mainly generated on the parting surface of the mold, indicating that the clamping force is insufficient.

2. The clamping force of the machine increases gradually. When the mold locking force reaches a certain value, the front part of the shawl on the parting surface disappears, or the injection pressure is increased, and the front part of the shawl on the parting surface does not increase. It is considered that the value of the mode locking force is sufficient.

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Check whether the shawl is caused by the precision of mold manufacturing: lower melting temperature, lower underfill speed, lower injection pressure, the product will just fill (slightly shrink product). In this case, the ability to melt the connector injection molding machine mold fit gap is weak, when the burr occurs at this time, it can be determined as the mold manufacturing accuracy, it is necessary to solve the repair mode. You can consider abandoning a program to solve the method that produces glitches.

It should be pointed out that the above-mentioned "three lows" conditions are indispensable. The material temperature is high, the mold filling speed is fast, and the injection pressure is high. Although the product is not satisfied with the rubber at this time, it will increase the local pressure in the mold cavity, enhance the ability of the melt to penetrate the mold matching gap, and cause the mold to expand and produce a hump. Analyze the cause of the burr. It is established that the clamping force is insufficient when the clamping force is sufficient, so it is difficult to analyze the cause of the burr. If you need to know more about debugging the connector injection molding machine, you can visit the official website of Lisong Machinery and leave a message to us.

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