MOLDING DIE AND MOLDING METHOD

• Main Authors: SAKAI HIDEO, TAMURA YOSHIKI, MARUYAMA TSUNEO
• Format: Patent
• Language: English; Japanese
• Published: 07.01.2021
• Subjects: PERFORMING OPERATIONS; PRESSES; PRESSES IN GENERAL; TRANSPORTING

To provide a molding die capable of accurately and easily molding a molding body including an undercut shape and a molding method using the molding die.SOLUTION: A molding die has a first die having a through-hole, a second die which is inserted into the through hole and is movable relatively to the first die, a first punch and a second punch respectively insertable into the through hole. An undercut molding part is provided in the second die. An end part of the first punch has a part with which an end part of the second die is engageable. A workpiece is compressively molded in a cavity surrounded by an inner surface of the through-hole, the first punch and the second punch.SELECTED DRAWING: Figure 1 【課題】アンダーカット形状を含む成型体を、高精度に、かつ容易に成型することが可能な成型金型、およびこれを用いた成型方法を提供する。【解決手段】貫通孔を有する第１ダイと、前記貫通孔に挿入され、前記第１ダイに対して相対移動が可能な第２ダイと、前記貫通孔にそれぞれ挿入可能な第１パンチおよび第２パンチと、を備え、前記第２ダイにはアンダーカット成型部が設けられ、前記第１パンチの端部には、前記第２ダイの端部が係合可能な部位が形成され、前記貫通孔の内側面、前記第２ダイ、前記第１パンチおよび前記第２パンチで囲まれたキャビティ内で、被成型物を圧縮成型することを特徴とする。【選択図】図１