The basic requirements for bumper mold mainly include the following aspects:
Adopt advanced internal parting surface technology to hide the parting line without affecting the appearance of the car. When designing, consider through holes and large area punch-throughs to ensure the service life of the bumper mold and reduce flash.
Use an integrated hot runner system to simplify assembly and disassembly, improve processing accuracy, and reduce the risk of glue leakage. Adopt 8-point sequential valve gate (SVG) hot runner technology to ensure no weld lines on the surface of the plastic part.
Design complex inclined top and straight top structures to ensure smooth core pulling, avoiding damage to the bumper mold. Design cooling channels on the moving mold side to ensure the stability of the bumper mold during the mold opening process.
Adopt straight-through and inclined cooling water pipes to ensure balanced mold temperature, improve forming cycle and product quality.
Use square guide pins and precision positioning guides to ensure the precision of plastic parts and the life of the bumper mold. Adopt a cone structure positioning on the parting surface to ensure accurate positioning.
Use direct ejection and ejector pins in the middle position to ensure smooth and safe demolding. Design anti-rotation structures to prevent the ejector pins from colliding with the fixed mold cavity surface.
Inspect the material, hardness, trimming edge, surface roughness, mating surface gaps, pin position and fit, pre-stress springs of the wedge and reset performance of the bumper mold. Ensure coordinated actions of all parts of the bumper mold, even gaps in the guiding parts, and accurate and stable positioning.
These requirements ensure that the design and manufacture of bumper mold can meet the high standards and safety requirements of automobile manufacturers, while also guaranteeing the quality and performance of the product.
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