Regarding several suggestions for the installation of injection molds, Henan Yongfeng Mould Co., Ltd. is summarized as follows, let's take a look!
1. Preparation before installation
Confirm the cooling water channel. The depth of the screw into the board is 1.5-1.8 times the diameter of the screw. If the screwing is insufficient, it is easy to slip and there is a risk of the mold falling. Confirm that the operators, materials, tools, documents, equipment auxiliary machines, etc. required for production are complete.
2, the method of hanging the mold
When the hanging mold is not horizontal, there will be different steps of the mold cavity before and after the installation of the mold. For the production of sophisticated products, there will be problems such as poor concentricity, poor step, poor tooth shape accuracy and poor distance.
When installing the mold, we must pay attention to this problem. When the mold is put in and can be pushed to the smaller position, the mold clamping is stopped. Loosen and tighten the lifting ring. The previous mode is the reference (because the front die has a positioning ring). When viewing the rear part, when the level of the front part is better, the position of the mold cavity is the same. Continue to close the mold to completion, but do not start the high pressure. it is good. (The first time the upper mold is closed, the high pressure must not be used first, and it is confirmed that the mold can be normal before starting the high pressure).
3, the method of screwing
The mold with low temperature, that is, the mold temperature below 50 degrees can be clamped to the high pressure start. The front and rear molds are tightened diagonally. The 8 screws can be screwed out. When the mold temperature is above 50 degrees, the screws should not be tightened too tightly before the mold temperature is reached. After the mold temperature arrives, start the high pressure and tighten the screws diagonally.
The mold material will swell and increase in volume with increasing temperature. When the mold temperature is high, it is more obvious. If the screw is tightened before the temperature rises, it will have a certain influence on the life of the mold and the accuracy of the mold.
4, the use of attached materials
When the mold thickness is not enough, it is necessary to add a template. When the mold temperature is high, it is recommended to install a heat shield between the plate and the mold. Whether it is a template 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, thereby affecting the product quality. When the mold temperature reaches the set value, the actual mold temperature is checked and a mold thickness adjustment is performed.