Compared with other molds, the injection mold is more c […]
Compared with other molds, the injection mold is more complicated and precise, and the requirements for operation and maintenance of the product are higher. Therefore, in the whole production process, the use of the positive solution and the meticulous maintenance and maintenance maintain the normal production of the enterprise and improve the enterprise. Benefits are of great significance.
First, select the appropriate molding equipment, determine the reasonable process conditions, if the injection molding machine is too small, it can not meet the requirements, too much is a waste of energy, and will damage the mold or template due to improper adjustment of the clamping force, and at the same time Reduce efficiency.
When selecting the injection machine, the maximum injection amount, the effective distance of the tie rod, the mold mounting size on the template, the maximum mold thickness, the minimum mold thickness, the template stroke, the ejection mode, the ejection stroke, the injection pressure, the clamping force, etc. should be performed. Verification, can be used after the request is sufficient. The reasonable determination of the process conditions is also one of the contents of the correct use of the mold, the clamping force is too large, the injection pressure is too high, the injection rate is too fast, the mold temperature is too high, etc., which will cause damage to the service life of the mold.
Second, after the mold is mounted on the injection machine, the empty mold must be operated first. Observe whether the operation of each part is flexible, whether there is abnormal phenomenon, the ejection stroke, whether the opening stroke is in place, whether the parting surface is tightly matched when the mold is closed, and whether the pressure plate screw is tightened.
Third, when the mold is used, it is necessary to maintain normal temperature and work under normal temperature to extend the service life of the mold.
Fourth, the sliding parts on the mold, such as the guide post, the return needle, the push rod, the core, etc., should be observed at any time, regular inspection, timely scrubbing and filling grease, especially when the summer temperature is high, at least two per shift Secondary oil to ensure that these slides are flexible and prevent tight seizures.
5. Before each mold clamping, it should be noted that whether the cavity is cleaned or not, no residual products or any other foreign objects are allowed. It is strictly forbidden to use hard tools during cleaning to prevent the surface of the cavity from being damaged.