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1. 发明公开

EP2712690A1 CORE SAND FILLING DEVICE AND CORE SAND FILLING METHOD IN CORE MAKING MACHINE 有权转让
标题翻译：制芯机中的核心砂填充装置和核心砂填充方法
公开(公告)号：EP2712690A1
公开(公告)日：2014-04-02
申请号：EP12793868.6
申请日：2012-05-18
申请人： Sintokogio, Ltd.
发明人： KATO Shigeyoshi , TSUZUKI Shuichi , HARADA Hisashi
IPC分类号： B22C15/24 , B22C9/10 , B22C13/08
CPC分类号： B22C9/10 , B22C7/06 , B22C13/08 , B22C15/24 , B22C19/04
摘要： There is provided a core sand filling device in an under-blow type core making machine in which core sand is blown from a lower part of a core box to an upper part of the core box. The core sand filling device includes the core box, a blow head which is placed below the core box so as to move up and down in a relative manner to the core box and divided into a sand blowing chamber and a sand storage chamber that are communicatively connected to each other, a compressed air supply unit which is communicatively connected to the sand storage chamber and supplies compressed air into the sand storage chamber, an aeration air supply unit which is communicatively connected to the sand blowing chamber and supplies into the sand blowing chamber aeration air for suspending and fluidizing core sand inside the sand blowing chamber, and an exhaust valve which is communicatively connected to the sand blowing chamber and exhausts compressed air remaining in the sand blowing chamber.
摘要翻译：本发明提供了一种在下吹式制芯机中的芯砂填充装置，其中芯砂从芯盒的下部吹到芯盒的上部。芯砂填充装置包括芯盒，位于芯盒下方的吹气头，可相对于芯盒上下移动，分为通风式的吹砂室和储砂室压缩空气供应单元，其连通地连接到所述储砂室并将压缩空气供应到所述储砂室中;曝气供气单元，其与所述喷砂室连通地连接并供应到所述喷砂室中使砂芯内部的芯砂悬浮流化的曝气空气;以及排气阀，该排气阀与喷砂室连通并排出残留在喷砂室内的压缩空气。

2. 发明公开

EP2826574A1 CORE SAND FILLING METHOD 有权转让
标题翻译： KERNSANDFÜLLVERFAHREN
公开(公告)号：EP2826574A1
公开(公告)日：2015-01-21
申请号：EP13794598.6
申请日：2013-02-07
申请人： Sintokogio, Ltd.
发明人： KATO Shigeyoshi , HARADA Hisashi
IPC分类号： B22C15/24 , B22C9/10 , B22C13/16
CPC分类号： B22C9/10 , B22C13/12 , B22C13/16 , B22C15/24 , B22C19/04
摘要： When employing an under-blow scheme for blowing core sand into a core box located on the upper side, a core sand filling method which can favorably fill the core box with core sand, thereby contributing to improving the efficiency in manufacturing cores, is provided.
The core sand filling method comprises a step of operating an aeration air supply means 9A, so as to float and fluidize core sand within a sand blow chamber 4 and, when a pressure Pf of the sand blow chamber 4 measured by the first pressure sensor 14 reaches a first pressure P1, operating a compressed air supply means 7A and a step of stopping the aeration air supply means 9A and compressed air supply means 7A from operating when each of the pressure Pf within the sand blow chamber 4 and a pressure Pc within a sand storage chamber 5 is a second pressure P2 or higher while a differential pressure ΔP = Pc - Pf is a third pressure P3 or lower.

3. 发明授权

EP2712690B1 CORE SAND FILLING DEVICE AND CORE SAND FILLING METHOD IN CORE MAKING MACHINE 有权转让
标题翻译：制芯机中的核心砂填充装置和核心砂填充方法
公开(公告)号：EP2712690B1
公开(公告)日：2016-06-29
申请号：EP12793868.6
申请日：2012-05-18
申请人： Sintokogio, Ltd.
发明人： KATO Shigeyoshi , TSUZUKI Shuichi , HARADA Hisashi
IPC分类号： B22C15/08 , B22C15/24 , B22D47/02 , B22C7/06 , B22C9/10 , B22C13/08 , B22C19/04
CPC分类号： B22C9/10 , B22C7/06 , B22C13/08 , B22C15/24 , B22C19/04

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