Constant clamping force injection molding machine

Date：2016-06-16 10:11:34

        Mold clamping force is to provide a locking force injection molding machine, which can offset the melt in the cavity produced by the mold force. Many people like to use the maximum injection clamping force, but rarely consider the size and form of the mold design and injection molds and products amounts, in fact, for economic and technical needs, while ensuring product quality, under the premise should clamping force transferred to the required minimum. Thus, one can significantly save energy, on the other hand can reduce the degree of wear of injection molding machines and molds, injection molding machines and help extend the life of the mold, but also the natural flow capacity of the mold can be improved, so that the mold filling state easier to control. Set the optimum clamping force of the program is: ¹ First, the clamping force injection molding machine to the highest, followed by the normal automatic or semi-automatic production. º were weighed three times the gross weight of the workpiece and calculates the average.
        The lower clamping force s t, until production stabilizes repeat º, find the gross average. ¼ then lower clamping force s t, and repeat º. Repeat ½ ¼, until a significant increase in the average gross weight. ¾ to obtain data lists, draw a workpiece clamping force gross curve. FIG. 1 is a production of A BS dumbbell-shaped tensile specimens piece weight parts a clamping force curve. Figure 1 shows that, when the clamping force from 70t reduced 4O t, parts gross value began to increase, which then reduces the clamping force, parts gross value more significantly increased, and produce flash, so in the production optimum clamping force under stable conditions is 4O t. For the mold of security, the main low-pressure test mold, which uses hierarchical control the clamping pressure, before the termination of the low-speed low-voltage shift mode, only when the mold is fully capable of bonding to achieve the desired clamping locking boost force.

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