1. Understand the relevant information of the mold:
It is best to get the design surface of the mold, analyze it in detail, and ask the mold technician to participate in the mold test work.
2. First check the mechanical cooperation on the workbench:
Pay attention to whether there are scratches, missing parts, looseness, etc., whether the movement of the mold slide is correct, whether there are leaks in the waterway and air pipe joints, and the mold should be marked on the mold if there is a limit to the opening process. If the above actions can be done before hanging the mold, you can avoid the waste of man-hours that occur when the problem is found during the hanging of the mold.
3. When it is determined that each part of the mold is in proper action, it is necessary to select a suitable test mold injection machine. When selecting, pay attention to:
(a) What is the maximum injection amount of the injection molding machine?
(b) Whether the lower die of the tie rod is placed
(c) Whether the maximum moving stroke of the movable template meets the requirements
(d) Whether other relevant test tools and accessories are ready
After confirming that there are no problems, the next step is to hang the mold. When hanging, you should pay attention not to remove all clamps before locking and opening the mold, so as not to loosen or break the mold and cause the mold to fall. After the mold is installed, you should carefully check the mechanical actions of each part of the mold, such as the slide, thimble, retracting structure and limit switch. And pay attention to whether the injection nozzle and the feeding port are aligned.
The next step is to pay attention to the mold clamping action. At this time, the mold closing pressure should be reduced. In manual and low-speed mold clamping actions, pay attention to see if there are any unsmooth movements and abnormal sounds. The process of hoisting the mold is actually relatively simple. The main thing to be careful about is the difficulty of calibrating the center of the mold gate and the nozzle. The test center can usually be used to adjust the center.
4. Increase the mold temperature:
According to the performance of the raw materials used in the finished product and the size of the mold, an appropriate mold temperature control machine is used to increase the temperature of the mold to the temperature required for production. After the mold temperature is increased, the movement of each part must be inspected again, because the steel may cause mold clamping after thermal expansion, so you must pay attention to the sliding of each part to avoid strain and vibration.