Advice On The Installation Of Injection Molds

The accuracy of injection mold installation is also one of the important factors affecting high-quality mold manufacturing. Through practical work, mold staff must continuously improve their professional and technical capabilities and solve problems in mold work.

The following are some suggestions for the installation of injection molds that we have summarized through practical work:

1. Preparation before installation

Confirm the cooling water channel, the depth of the screw into the machine board is 1.5-1.8 times the diameter of the screw. If the screw is not enough, it is easy to slip the teeth, and there is a risk of the mold falling. Confirm whether the staff, materials, tools, documents, auxiliary equipment, etc. required for production are complete.

2. The method of hanging the mold

When the hanging mold is not level, there will be a different step difference between the front and rear mold cavities of the installed mold. For the production of precision products, there will be poor concentricity, poor step difference, poor tooth shape accuracy, and poor distance.

When installing the mold, we must pay attention to this problem. When the hanging mold enters and closes to a small position that can be pushed by the hand, stop the mold clamping. Loosen and tighten the lifting ring, take the front mold as the benchmark (because the front mold is fixed by the positioning ring), and watch the rear mold part. When the level of the front mold is very good, the position of the mold cavity is consistent, and continue to close the mold until it is completed, but do not start the high pressure comparison. it is good. (The first time the upper mold is closed, the high pressure must not be applied first, and the high pressure can be applied after confirming that the mold can be closed normally).

3. The method of screwing

Low temperature, that is, the mold temperature below 50 degrees, can be closed to high pressure when starting, tighten the screws diagonally on the front and rear molds, and 8 screws are enough. When the mold temperature is above 50 degrees, do not tighten the screws before the mold temperature reaches. After the mold temperature is reached, high pressure starts, and the screws are tightened diagonally.

As the temperature increases, the mold material will expand and increase in volume. It is more obvious when the mold temperature is high. If the screw is tightened before the temperature rises, it will have a certain impact on the life of the mold and the accuracy of the mold.

4. Use of accessories

When the thickness of the mold is not enough, it is necessary to install a template. When the mold temperature is high, it is recommended to install a heat insulation board between the machine plate and the mold. Whether it is a formwork or a heat shield, the flatness must be as small as possible.

If the flatness is large, the front and rear molds of the mold are not parallel, and there is a difference after the high pressure is closed, which affects the quality of the product. When the mold temperature reaches the set value, check the actual temperature of the mold and make a mold thickness adjustment.

Taizhou Minghuang Plastic Mould Co., Ltd. is a professional forging mold manufacturers. If you need it, please click the official website to contact us, we are willing to answer more information for you