The invention discloses a forming device, including a forming mesh cage, a vacuum forming drum, a concave roller and a needle roller. The forming mesh cage is a seamless cylindrical metal mesh cage with recessed areas and non-recessed areas all provided with through holes. The vacuum forming drum is equipped with vacuum suction ports; the concave roller surface has concave and non-concave areas; the needle roller surface has punching areas and counterbore areas. The forming mesh cage is sleeved on the vacuum forming drum, and the concave roller is matched with the forming mesh cage and the needle roller. The invention also provides a method for manufacturing porous films by using the above forming device. Compared with traditional secondary punching processes, the device and method reduce auxiliary equipment and transportation links, save energy consumption and production cost, improve efficiency and avoid secondary material pollution.
Area Code: CN
Application Number: CN201710867393.X
