How to maintain the blow molding
machine? Coarse adjustment: Loosen the four front nuts of the tie rod and its pressure plate to move the adjustment plate back. At this time, the sprocket screw is tightly fixed on the rear pressure plate of the adjusting plate adjusting nut without the rear end, thereby eliminating the gap between the sprocket nut and the rear pressure plate. At the same time, due to the loosening of the front nut pressure plate of the tie rod, the tie rod moves forward under the driving of the sprocket screw, and there is no reaction force, and the gap between the front nut and the fixed template will increase. When it is determined that all four tie rods are moving forward (the gap between the four front screws and the fixed template will increase), tighten the front nuts evenly and press the front nut pressure plate to complete the rough adjustment of the parallelism between the moving template and the fixed template. Then, after quickly opening and closing the mold several times, when the double toggle lever mechanism is fully extended, measure the distance between the four corners of the movable template and the fixed template, and calculate the parallelism. Fine-tuning: The fine-tuning method is to adjust the position of the front nut separately according to the distance measured between the moving template and the four corners of the fixed template to improve the parallelism. The process of measurement and adjustment often needs to be repeated many times. During the fine adjustment process, pay special attention to the following two points: First, during the clamping action, measure the straightening accuracy of the double toggle lever mechanism. The damage of the mold adjusting mechanism of the blow molding machine
mostly occurs when the injection molding machine is locked under high pressure, and the linear state of the toggle mechanism in the clamping action is the closest to the locked state. After the mold is closed, under the action of the reaction force of the moving platen moving forward, the mold adjustment nut and the mold adjustment template are closely fitted, eliminating the gap between the mold adjustment screw and the mold adjustment template, and the direction of each kinematic pair of the toggle mechanism. The front clearance is the most suitable benchmark for adjustment. order
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