2results about How to "Reduce deformation defects" patented technology

The utility model relates to the technical field of shaping tools, in particular to a flexible shaping tool for curved-surface products. According to the technical scheme, the die comprises four guide rods used for supporting and guiding, the lower ends of the guide rods are fixedly sleeved with a lower die assembly, and the upper ends of the guide rods are movably sleeved with an upper die assembly; the first spring is arranged on the outer wall of the guide rod in a sleeving mode, the lower end of the first spring is fixedly connected with the lower die assembly, and the upper end of the first spring is fixedly connected with the upper die assembly. The curved-surface product shaping device can be adaptively adjusted according to the actual shape of a product, the problem that the shaping effect is poor due to rigid extrusion is solved, the shaping accuracy of curved-surface products is greatly improved, deformation flaws caused by excessive or uneven stress of the products are effectively reduced, the shaping effect is remarkably improved, and the production efficiency is improved. And the requirements of actual production on high-precision products are met.

This utility model provides a hot-press forming machine for curved panels of electronic products, including several sets of hot-pressing devices and cooling and shaping devices distributed in a straight line, as well as forming mold assemblies that move sequentially. Each hot-pressing device includes a lower support base, an upper heating plate assembly, and a first hydraulic drive device for driving the upper heating plate assembly to rise and fall. Some hot-pressing devices are equipped with a vacuum device, which includes an upper sealing cover sealed to the outer periphery of the upper heating plate assembly, a lower sealing cover sealed to the outer periphery of the lower support base, and a vacuum port on either the upper or lower sealing cover. The bottom of the lower sealing cover is supported on the frame by several springs, allowing the lower sealing cover to rise and fall elastically. After closing, a vacuum is drawn, expelling air from the cavity of the forming mold assembly, thus preventing air bubbles from easily forming during the material's flow and shaping process. The multiple sets of hot-pressing devices and cooling and shaping devices not only improve production efficiency but also reduce product stress deformation.