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    • 49. 发明授权
    • Apparatus for deforming corrugated fiberboard
    • 瓦楞纸板变形装置
    • US4143587A
    • 1979-03-13
    • US817434
    • 1977-07-20
    • Toshihiko Fujii
    • Toshihiko Fujii
    • B30B9/00B29C33/00B29C43/00B29C43/02B29C43/32B29C43/36B29C43/58B29C51/00B29C51/26B31F1/00B32B3/28E04C2/32B30B15/34B31B43/00
    • B29C51/262B29C51/006B31F1/00B32B3/28E04C2/328B29C43/203B29K2995/0002Y10S425/11
    • Apparatus for inelastically deforming an initially flat blank of a corrugated fiberboard, comprising two die blocks movable relative to each other and having complementarily convex and concave pressing surfaces and blank retaining means adapted to clamp opposite marginal portions of a blank of a corrugated fiberboard being warped between the die blocks with the marginal portions urged sidewise inboardly of the die blocks, the blank retaining means being operative to restrain the blank from being moved in a direction parallel with the marginal portions but to allow the marginal portion of the blank to move the marginal portions of the blank sidewise inboardly of the die blocks in a direction perpendicular to the marginal portions so that not only production of creases in curved portions of the blank but production of fissures as would be caused if the blank is excessively stretched between the opposite marginal portions of the blank are precluded.
    • 用于使瓦楞纤维板的初始平坦的坯料非弹性变形的装置,包括两个可相对于彼此移动并具有互补的凸形和凹形的压制表面的模块,以及用于夹紧瓦楞纸板的坯料的相对的边缘部分的坯料保持装置, 具有边缘部分的模块被侧向地推压在模具块的内侧,坯料保持装置可操作地限制坯料沿平行于边缘部分的方向移动,但是允许坯料的边缘部分移动边缘部分 在坯料侧面沿垂直于边缘部分的方向的坯料侧面的坯料,使得不仅在坯料的弯曲部分中产生折痕,而且如果坯料在相对的边缘部分之间过度拉伸,则会产生裂缝 空白被排除。