公开(公告)号：US09962868B2

公开(公告)日：2018-05-08

申请号：US14410003

申请日：2013-04-11

Applicant: SINTOKOGIO, LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yusuke Kato ,  Toshihiko Zenpo ,  Toshio Kanno ,  Hirotsune Watanabe ,  Tomokazu Suda ,  Yasutake Nagata ,  Masaomi Mitsutake ,  Takumi Maegawa

IPC: B29C44/02 ,  B01F3/04 ,  B01F15/02 ,  B22C15/08

CPC classification number: B29C44/02 ,  B01F3/04446 ,  B01F15/0237 ,  B22C7/023 ,  B22C15/08 ,  B29C44/3442

Abstract: First, a supply device supplies a foamed kneaded material into a cylinder. Then, in a state in which an internal space of the cylinder is communicated with a pattern forming space of a mold, the piston disposed in the cylinder is moved toward the foamed kneaded material side while opening a gas release hole formed piercing through the piston. Then, at a timing when the piston has reached an expected position where the piston is expected to be on contacting the foamed kneaded material supplied into the cylinder, the gas release hole is closed by an open-close plug. Then, the foamed kneaded material supplied into the cylinder is pressed toward the pattern forming space side of the mold by moving the piston toward the foamed kneaded material side.

公开(公告)号：US10946436B2

公开(公告)日：2021-03-16

申请号：US15771301

申请日：2016-10-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  SINTOKOGIO, LTD.

Inventor： Masahide Seko ,  Masashi Morikawa ,  Takumi Maegawa ,  Takashi Nagaya ,  Toshio Kanno ,  Hirotaka Kurita

IPC: B22C15/02 ,  B22C19/04 ,  B22C9/02

Abstract: When pressing kneaded sand in a kneading sand tank into a mold by a pressing member, a pressing force applied to a kneaded sand layer in the kneading sand tank is monitored and a moving position of the pressing member is monitored from when the pressing member starts to move. A pressing start time at which the kneaded sand starts to flow into the mold is identified based on the pressing force applied to the kneaded sand layer in the kneading sand tank, and a pressing starting position of the pressing member at the pressing start time is identified. As a result, the pressing start time and the pressing starting position of the pressing member when the kneaded sand starts to flow into the mold are accurately identified, so the reliability of a filling evaluation of the kneaded sand into the mold is improved.

公开(公告)号：US20160045951A1

公开(公告)日：2016-02-18

申请号：US14780116

申请日：2014-01-22

Applicant: SINTOKOGIO, LTD.

Inventor： Takumi Maegawa ,  Hirotsune Watanabe ,  Tomokazu Suda ,  Massaomi Mitsutake ,  Toshio Kanno ,  Hirotaka Kurita

IPC: B22C7/06 ,  B22C9/02

CPC classification number: B22C7/065 ,  B22C9/02 ,  B22C9/12 ,  B22C15/08 ,  B22C19/00

Abstract: A sand-mold molding method for producing a molded article obtained by packing foamed sand may include stirring a binder with an aggregate to form foamed sand; forming a cavity via clamping a metallic mold closed; packing the foamed sand into the cavity of the metallic mold and then heating and solidifying the foamed sand; and opening the metallic mold partially to provide a gap in the metallic mold while maintaining the cavity.

Abstract translation: 用于生产通过包装发泡砂获得的模制品的砂模成型方法可以包括用骨料搅拌粘合剂以形成发泡砂; 通过将金属模夹紧而形成空腔; 将发泡砂包装到金属模具的空腔中，然后加热固化发泡砂; 并且部分地打开金属模具以在保持空腔的同时在金属模具中提供间隙。

公开(公告)号：US20150197044A1

公开(公告)日：2015-07-16

申请号：US14410003

申请日：2013-04-11

Applicant: SINTOKOGIO, LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yusuke Kato ,  Toshihiko Zenpo ,  Toshio Kanno ,  Hirotsune Watanabe ,  Tomokazu Suda ,  Yasutake Nagata ,  Masaomi Mitsutake ,  Takumi Maegawa

IPC: B29C44/02 ,  B01F15/02 ,  B01F3/04

CPC classification number: B29C44/02 ,  B01F3/04446 ,  B01F15/0237 ,  B22C7/023 ,  B22C15/08 ,  B29C44/3442

Abstract: First, a supply device supplies a foamed kneaded material into a cylinder. Then, in a state in which an internal space of the cylinder is communicated with a pattern forming space of a mold, the piston disposed in the cylinder is moved toward the foamed kneaded material side while opening a gas release hole formed piercing through the piston. Then, at a timing when the piston has reached an expected position where the piston is expected to be on contacting the foamed kneaded material supplied into the cylinder, the gas release hole is closed by an open-close plug. Then, the foamed kneaded material supplied into the cylinder is pressed toward the pattern forming space side of the mold by moving the piston toward the foamed kneaded material side.

Abstract translation: 首先，供给装置将发泡混炼物供给到气缸中。 然后，在气缸的内部空间与模具的图案形成空间连通的状态下，设置在气缸中的活塞朝向发泡捏合材料侧移动，同时打开穿过活塞形成的气体释放孔。 然后，在活塞达到活塞预期与供给到气缸中的发泡混炼物接触的期望位置的时刻，气体释放孔被开闭塞关闭。 然后，通过将活塞朝向发泡捏合材料侧移动，供给到气缸中的发泡捏合材料被压向模具的图案形成空间侧。