US 12,447,700 B2
Mold, apparatus, and method for producing metal-resin composite
Kenichi Watanabe, Kobe (JP); Ryohei Ihara, Kobe (JP); and Zenzo Yamaguchi, Kobe (JP)
Assigned to KOBE STEEL, LTD., Hyogo (JP)
Filed by KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), Hyogo (JP)
Filed on Jun. 6, 2022, as Appl. No. 17/833,370.
Claims priority of application No. 2021-097316 (JP), filed on Jun. 10, 2021.
Prior Publication US 2022/0396041 A1, Dec. 15, 2022
Int. Cl. B29C 70/68 (2006.01); B29C 70/84 (2006.01); B29K 101/10 (2006.01); B29K 105/00 (2006.01)
CPC B29C 70/683 (2013.01) [B29C 70/682 (2013.01); B29C 70/84 (2013.01); B29K 2101/10 (2013.01); B29K 2105/256 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A mold for producing a metal-resin composite by press-forming a metal member followed by integrally molding the metal member that is press-formed and a resin material, the mold comprising:
an upper mold and a lower mold arranged so as to be opposed with each other, and being moved at least to an open position where the upper mold and the lower mold are apart from each other and a closed position where the upper mold and the lower mold define a cavity,
wherein the lower mold has a hollow inner space,
the lower mold includes:
a first inner molding lower surface defining a bottom surface of the hollow inner space, and
a pair of second inner molding surfaces defining side surfaces of the hollow inner space, each of the second inner molding surfaces extending upward from the first inner molding lower surface; and
wherein the upper mold includes:
a main body projecting toward the hollow inner space of the lower mold; and
a plurality of protruding portions, which are integral with the main body, projecting from outermost edges of the main body toward the first inner molding lower surface of the lower mold and arranged intermittently, wherein
each of the plurality of protruding portions has a first press surface for press-forming the metal member at a tip end thereof,
the main body has a second press surface for integrally molding the metal member and the resin material at a lower end portion thereof, and
a distance between the first press surface of each of the plurality of protruding portions and the first inner molding lower surface of the lower mold is shorter than a distance between the second press surface and the first inner molding lower surface of the lower mold at the closed position where the main body of the upper mold is disposed in the hollow inner space of the lower mold.