5. If the experimental plan rule is not implemented in the factory, we recommend that only one condition be adjusted at a time when adjusting the test mold conditions in order to distinguish the impact of a single condition change on the finished product.
6. According to the different raw materials, do a proper baking of the original ravioli.
7. Trial mold and future mass production use the same raw materials as much as possible.
8. Do not try the mold completely with inferior materials. If you need color, you can arrange the color test together.
9. Internal stress and other problems often affect the secondary processing. After the mold is tested, the secondary processing should be performed after the finished product is stable. After the mold is closed slowly, the mold closing pressure should be adjusted and acted a few times to check whether the Uneven mold pressure to avoid burrs and mold deformation in the finished product.
After the above steps are checked, lower the mold closing speed and mold closing pressure, and set the safety buckle and ejection stroke, and then adjust the normal mold closing and mold closing speed. If the limit switch of the maximum stroke is involved, the mold opening stroke should be adjusted slightly shorter, and the high-speed mold opening action should be cut off before the maximum stroke of the mold opening. This is because during the entire mold opening stroke during the mold loading, the high-speed action stroke is longer than the low-speed stroke. On the plastic machine, the mechanical ejector must also be adjusted to act after the mold is opened at full speed to prevent the ejector plate or the peeling plate from being deformed by the force.
Please check the following items before making the first shot:
(a) Whether the feeding stroke is too long or insufficient.
(b) Whether the pressure is too high or too low.
(c) Whether the filling speed is too fast or too slow.
(d) Whether the machining cycle is too long or too short.
To prevent short shots, fractures, deformation, burrs and even damage to the mold. If the processing cycle is too short, the ejector pin will push through the finished product or peel the ring to crush the finished product. This kind of situation may make you spend two or three hours to take out the finished product. If the processing cycle is too long, the thin parts of the mold core may be broken due to the shrinkage of the rubber. Of course you can't anticipate all the problems that may occur during the mold trial process, but taking full consideration of the timely measures in advance will help you avoid serious and expensive losses.