Mold forming device, mold quality evaluation device, and mold quality evaluation method

Patent metadata

Field	Value
Publication number	US-2021060636-A1
Application number	US-201916965213-A
Country	US
Kind code	A1
Filing date	Apr 25, 2019
Priority date	May 7, 2018
Publication date	Mar 4, 2021
Grant date	—

Abstract

A casting mold molding device, a casting mold quality evaluation device, and a casting mold quality evaluation method are capable of evaluating the quality (casting mold strength) of a molded green sand mold without measuring a green sand mold by using a casting mold strength gauge each time a green sand mold is molded in one frame. A green sand mold molding sensor that, during molding of a green sand mold, measures a pressure value applied to a joining section between green sand introduced into a casting mold molding space and a plate having a model attached thereto; and a casting mold quality evaluation device that evaluates the quality of a molded green sand mold from the pressure value.

First claim

1 . A casting mold molding device comprising:
a green sand mold molding sensor that, during molding of a green sand mold, measures a pressure value applied to a joining section between green sand introduced into a casting mold molding space and a plate having a model attached thereto; and a casting mold quality evaluation device that evaluates the quality of a molded green sand mold from the pressure value.

2 . The casting mold molding device according to claim 1 , wherein the casting mold quality evaluation device comprises a casting mold strength calculation unit that calculates the casting mold strength of the green sand mold from the pressure value on the basis of a relationship between the pressure value and the casting mold strength of a green sand mold for which the pressure value was measured.

3 . The casting mold molding device according to claim 2 , wherein the casting mold quality evaluation device comprises a casting mold quality determination unit that determines the quality of the molded green sand mold from the calculated casting mold strength on the basis of a predetermined threshold value.

4 . The casting mold molding device according to claim 2 , wherein the casting mold strength calculation unit calculates the casting mold strength of a green sand mold for which the casting mold strength has not been measured.

5 . The casting mold molding device according to claim 2 , wherein the casting mold quality evaluation device further comprises a display means that displays the relationship between the pressure value calculated by the casting mold strength calculation unit and the casting mold strength of a green sand mold for which the pressure value was measured.

6 . The casting mold molding device according to claim 1 , wherein the casting mold quality evaluation device further comprises a recording means that records pressure value data, casting mold strength data associated with pressure values, calculation results of casting mold strength, and determination results of casting mold quality which were produced during molding of the green sand mold.

7 . The casting mold molding device according to claim 1 , wherein transmission of a pressure value from the green sand mold molding sensor to the casting mold quality evaluation device is carried out via wireless communication.

8 . The casting mold molding device according to claim 1 , wherein the casting mold molding device is a flaskless molding machine or a flask molding machine.

9 . The casting mold molding device according to claim 1 , wherein the plate is configured to be rectangular, a plurality of the green sand mold molding sensors are provided, and these pressure sensors are embedded in the four corners of the plate.

10 . A casting mold quality evaluation device that evaluates, during molding of a green sand mold, the quality of the molded green sand mold from a pressure value applied to a joining section between green sand introduced into a casting mold molding space and a plate having a model attached thereto.

11 . The casting mold quality evaluation device according to claim 10 , comprising a casting mold strength calculation unit that calculates the casting mold strength of a green sand mold from the pressure value on the basis of a relationship between the pressure value and the casting mold strength of a green sand mold for which the pressure value was measured.

12 . The casting mold quality evaluation device according to claim 11 , comprising a casting mold quality determination unit that determines the quality of a molded green sand mold from the calculated casting mold strength on the basis of a predetermined threshold value.

13 . A casting mold quality evaluation method comprising: measuring, during molding of a green sand mold, a pressure value applied to a joining section between green sand introduced into a casting mold molding space and a plate having a model attached thereto; and
evaluating the quality of a molded green sand mold from the pressure value.

14 . The casting mold quality evaluation method according to claim 13 , wherein the evaluating the quality of a green sand mold comprises calculating the casting mold strength of a green sand mold from the pressure value on the basis of a relationship between the pressure value and the casting mold strength of a green sand mold for which the pressure value was measured.

15 . The casting mold quality evaluation method according to claim 14 , wherein the evaluating the quality of a green sand mold comprises determining the quality of a molded green sand mold from the calculated casting mold strength on the basis of a predetermined threshold value.

Assignees

• Sintokogio Ltd

Inventors

• Ishii Takato
• ASAOKA Yasuaki
• Harada Hisashi
• Sugino Takehiro

Classifications

• B22C9/02 Primary

  Sand moulds or like moulds for shaped castings · CPC title

• B22C21/12

  Accessories · CPC title

• G01N9/26

  by measuring pressure differences · CPC title

• B22C9/00

  Moulds or cores (uniquely adapted to particular casting processes B22D); Moulding processes · CPC title