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Procedure maintenance of mold (1)

Aug 06, 2018

The mold structure 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 are of great significance for maintaining the normal production of the enterprise and improving the efficiency of the enterprise. 

First, choose 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.

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.

瓶坯模具(PET Preform Mould@2x.png

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 only be used after sufficient requirements. 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.

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.