公开(公告)号：EP2511025A4

公开(公告)日：2017-12-27

申请号：EP10835736

申请日：2010-07-20

申请人： SINTOKOGIO LTD

发明人： HADANO YUTAKA ,  KOMIYAMA TAKAYUKI ,  TAKASU SHUJI ,  IDE SHUICHI ,  NITTA TAKUYA

IPC分类号： B22C15/02 ,  B22C11/00 ,  B22C15/08

CPC分类号： B22C11/00 ,  B22C15/02 ,  B22C15/08

摘要： Disclosed is a molding machine for simultaneously making upper and lower molds with cope and drag flasks, a matchplate, upper and lower squeezing boards, and a lower filling frame. This machine also includes a cylinder for raising and lowering the lower squeezing board, a driving mechanism that includes pneumatic and hydraulic piping systems for driving the cylinder using an air-on-oil system, and a controller for controlling the driving mechanism. The drag flask, the matchplate, the filling frame, and the lower board define a lower molding space, while the matchplate, the upper board, and the cope flask define an upper molding space such that the controller controls the driving mechanism to drive the cylinder at a low pressure. The lower squeezing board is raised to squeeze the molding sand for simultaneously making the two molds such that the controller controls the driving mechanism to drive the cylinder at a high pressure.

公开(公告)号：EP1897634B8

公开(公告)日：2017-08-09

申请号：EP06746991.6

申请日：2006-05-30

申请人： SINTOKOGIO, LTD.

发明人： HIRATA, Minoru c/o Sintokogio, Ltd. ,  KOMIYAMA, Takayuki c/o Sintokogio, Ltd.

IPC分类号： B22C15/02 ,  B22C11/00 ,  B22C11/10 ,  B22C15/08

CPC分类号： B22C11/10 ,  B22C11/04 ,  B22C15/08

摘要： This invention provides a flaskless molding apparatus for an upper and a lower mold that can produce molds comprised of molding sand with a substantially uniform density, the apparatus, comprising a match plate held between a cope flask and a drag flask, a squeezing mechanism having a plurality of upper and lower segmented-squeeze feet, wherein the upper and the lower segmented-squeeze feet are insertable into each opening of the cope flask and the drag flask respectively, which openings are opposite to the match plate, and wherein the squeezing mechanism can support and rotate the cope flask and the drag flask so that the mechanism allows the cope flask and the drag flask to be rotated clockwise or counterclockwise in a perpendicular plane about a supporting shaft and so that the cope flask and the drag flask can be perpendicular or horizontal, and a means for moving the segmented-squeeze feet, wherein the means can control the positions of the upper and the lower segmented-squeeze feet, which positions determine the condition of the molding sand in the molding spaces, according to the intervals between the match plate and each of the upper and the lower segmented-squeeze feet opposite to the match plate.

摘要翻译： 本发明提供一种用于上下模的无箱成型设备，该设备可以生产出密度基本均匀的型砂构成的模具，该设备包括一个夹持在上砂箱和下砂箱之间的双面模板，一个挤压机构， 多个上部分段挤压脚和下部分段挤压脚，其中上部分段挤压脚和下部分段挤压脚可以分别插入到上砂箱和下砂箱的每个开口中，所述开口与所述匹配板相对，并且其中挤压机构可以 支撑和旋转上砂箱和下砂箱，使得该机构允许上砂箱和下砂箱在垂直于支撑轴的平面内顺时针或逆时针旋转，并且上砂箱和下砂箱可以垂直或 水平的，以及用于移动分段挤压脚的装置，其中所述装置可以控制上部和下部分段挤压的位置 该位置根据匹配板与相对于匹配板的每个上分段挤压脚和下分段挤压脚之间的间隔来确定模制空间中的型砂状态。

公开(公告)号：EP2716385A4

公开(公告)日：2015-01-14

申请号：EP11866063

申请日：2011-12-08

申请人： ZAKRYTOE AKTSIONERNOE OBSCHESTVO LITAFORM

发明人： BEKH NIKOLAI IVANOVICH ,  VOLKOMICH ANATOLY ALEXANDROVICH ,  LUTTS RUDOLF RUDOLFOVICH

IPC分类号： B22C15/28 ,  B22C9/02

CPC分类号： B22C15/08 ,  B22C9/02 ,  B22C15/28

公开(公告)号：EP2457677A1

公开(公告)日：2012-05-30

申请号：EP11005825.2

申请日：2011-07-15

申请人： Sintokogio, Ltd. ,  Western Michigan University

发明人： Makino, Hiroyasu ,  Ramratten, Sam

IPC分类号： B22C15/28 ,  B22C15/30 ,  B22C15/34

CPC分类号： B22C15/08 ,  B22C9/02 ,  B22C15/00 ,  B22C15/10

摘要： The object of the present invention is to provide a method for green sand molding that prevents a bad casting by producing a mold that does not have a brittle surface. The method comprises the steps of filling the green sand into a flask while fluidizing the green sand by aeration at a pressure between 0.05 and 0.18 MPa, and squeezing the green sand that has been filled in the flask, wherein a mold is produced so that the friability of the mold is 10 or less. The friability is a value that is calculated by the following steps: putting the mold in a rotating cylindrical sieve that has a diameter of 177.8 mm and USA sieve size No. 8, rotating the cylindrical sieve at 57 rpm for 60 seconds, dividing the weight of the sand that has passed through the sieve by the weight of the sand that has been put into the sieve, and multiplying the quotient by 100.

摘要翻译： 本发明的目的是提供一种通过生产不具有脆性表面的模具来防止不良铸造的生砂砂铸造的方法。 该方法包括以下步骤：将生砂填充到烧瓶中，同时通过在0.05至0.18MPa的压力下曝气使生砂流化，并且挤压填充在烧瓶中的生砂，其中制造模具， 模具的脆性为10以下。 脆性是通过以下步骤计算的值：将模具放入直径为177.8mm的旋转圆柱形筛和美国筛孔号8，将圆筒筛在57rpm下旋转60秒，将重量除以 的已经通过筛子的沙子已经放入筛子中的沙子，并将商乘以100。

公开(公告)号：EP2195130B1

公开(公告)日：2012-03-07

申请号：EP08710815.5

申请日：2008-01-29

申请人： Sintokogio, Ltd.

发明人： HIRATA, Minoru ,  SAKAGUCHI, Koichi

IPC分类号： B22C9/10 ,  B22C11/10 ,  B22C15/02 ,  B22C15/08

CPC分类号： B22C9/108 ,  B22C11/10 ,  B22C15/02 ,  B22C15/08

摘要： These inventions provide a core-setting apparatus and a method for setting the core in a lower mold used for a molding apparatus, wherein the core-setting apparatus has a simple structure and can maintain the core in the mold in a highly accurate position. The inventions consist of: the core-setting apparatus to set a core in the lower mold while the upper and the lower mold and a match plate are separated from each other after molding the upper and lower mold that comprises: a handling tool having a holding means and a rotatable rod, wherein the handling tool is rotatably supported by the rod, a carrier for transferring the handling tool, wherein the carrier supports the rotatable rod and is moved to or from the location above the lower mold, and an actuator for lowering and lifting the cope flask together with the carrier and the handling tool which are located above the drag flask, wherein the actuator is mounted on the main body of the molding apparatus.

公开(公告)号：EP1707289A4

公开(公告)日：2009-03-11

申请号：EP05703919

申请日：2005-01-20

申请人： SINTOKOGIO LTD

发明人： HIRATA MINORU

IPC分类号： B22C11/10 ,  B01D21/06 ,  B01F5/10 ,  B01F7/16 ,  B01F7/18 ,  B01F7/28 ,  B02C17/00 ,  B02C17/16 ,  B09B3/00 ,  B22C15/02 ,  B22C15/06 ,  B22C15/24 ,  B22C15/28 ,  C02F1/00 ,  C02F1/38 ,  F26B17/10 ,  F26B17/24

CPC分类号： B22C21/12 ,  B01D21/06 ,  B01D21/2444 ,  B01D21/245 ,  B01D21/26 ,  B01D21/267 ,  B01F5/104 ,  B01F7/1625 ,  B01F7/18 ,  B01F7/285 ,  B01F13/1011 ,  B01F13/1041 ,  B01F15/00974 ,  B01F15/00987 ,  B01F2215/0014 ,  B01F2215/0032 ,  B01F2215/005 ,  B01F2215/0481 ,  B02C17/007 ,  B02C17/16 ,  B02C17/163 ,  B09B3/00 ,  B22C7/04 ,  B22C11/10 ,  B22C15/02 ,  B22C15/06 ,  B22C15/08 ,  B22C15/24 ,  B22C15/28 ,  B22C21/10 ,  C02F1/38 ,  C02F2103/08 ,  C02F2301/024 ,  C02F2301/026 ,  F26B5/00 ,  F26B17/107 ,  F26B17/24

摘要： A flask for containing mold sand within it prevents any mold shifting or mold dropping. Each of an upper flask 2 and a lower flask 3 includes a body that defines an opening in which a sand mold is to be molded. The body has at least one inlet 101 for introducing the mold sand into the opening. Two flanges 102 are extended from the body such that they are opposed to each other across the opening. Each flange has a through bore. The flask also includes engaging members for engaging an actuator in the outside of the flask such that a force or forces from said actuator could be transmitted to the flask. An upper flask 104 and a lower flask 105 are opposed to each other across a pattern plate 107. They are integrally assembled to make a flask unit by means of a pair of connecting rods 106 that are fitted in each bore.

公开(公告)号：EP1964626A1

公开(公告)日：2008-09-03

申请号：EP07012211.4

申请日：2007-06-21

申请人： SINTOKOGIO, LTD.

发明人： Hirata, Minoru

IPC分类号： B22C15/02 ,  B22C15/08 ,  B22C15/28

CPC分类号： B22C15/02 ,  B22C15/08 ,  B22C15/28

摘要： A method and a device for producing tight-flask molds, in as short a cycle as possible, is provided. The method of the invention is a method for producing a tight-flask mold by transferring a flask to a position between a pattern carrier and a sand hopper by a flask conveyor that horizontally transfers flasks at a transfer level. The method includes the steps of keeping the flask in the position at the transfer level, while lowering the sand hopper, squeeze means, and a filling frame to the flask and lifting the pattern carrier and a box-like frame to the frame, thereby defining a mold space by the sand hopper, the squeeze means, the filling frame, the flask, the pattern carrier, and the box-like frame; filling molding sand into the mold space; squeezing the molding sand in the mold space to produce a tight-flask mold; and lifting the sand hopper, the squeeze means, and the filling frame and lowering the pattern carrier and the box-like frame, thereby allowing the tight-flask mold to be ready to be transferred.

摘要翻译： 提供了尽可能短的循环的用于制造密闭模具的方法和装置。 本发明的方法是一种用于通过在转台水平转移烧瓶的烧瓶式输送机将烧瓶转移到图案载体和砂斗之间的位置来生产紧烧瓶模具的方法。 该方法包括以下步骤：将砂箱保持在转移水平的位置，同时将砂斗，挤压装置和填充框架降低到烧瓶并将图案载体和盒状框架提升到框架，从而定义 通过砂斗，挤压装置，填充框架，烧瓶，图案载体和箱状框架的模具空间; 将型砂填入模具空间; 挤压模具空间中的型砂以产生紧密模具; 提起砂斗，挤压装置和填充框架，并降低图案架和盒状框架，从而允许密闭式模具准备好转移。

公开(公告)号：EP1930101A1

公开(公告)日：2008-06-11

申请号：EP07013601.5

申请日：2007-07-11

申请人： SINTOKOGIO, LTD.

发明人： Hirata, Minoru ,  Komiyama, Takayuki ,  Oya, Toshihiko ,  Sakai, Tsuyoshi ,  Sakaguchi, Koichi

IPC分类号： B22C11/00 ,  B22C15/08

CPC分类号： B22C11/00 ,  B22C15/08

摘要： A hydraulic power unit 15 of a match-plate molding machine comprises a hydraulic pump 20 for supplying oil, a piping system 21, 25, and 26 that fluidly communicates with first and second hydraulic cylinder systems 7 and 10 for supplying the oil from the hydraulic pump 20 to them to perform a squeeze step, an accumulator 22 that is provided within the piping system, first and second electromagnetic directional control valves 23 and 24 for controlling the flow of the oil from the hydraulic pump 20 to the first and second hydraulic cylinder systems 7 and 10, first and second pressure sensors 27 and 28 for measuring pressures of the oil of the first and second hydraulic cylinder systems 7 and 10, and for generating output signals that correspond to the measured value, and a controller 29 for receiving the output signals from the first and second pressure sensors 23 and 24, and for controlling the turns of the first and second electromagnetic directional control valves 23 and 24 based on the output signals and the predetermined value within a range below the pressure holding the accumulator 22 against the oil.

摘要翻译： 匹配板成型机的液压动力单元15包括用于供给油的液压泵20，与第一和第二液压缸系统7和10流体连通的管道系统21,25和26，用于从液压供应油 泵20向其施加挤压步骤，设置在管道系统内的蓄能器22，用于控制从液压泵20到第一和第二液压缸的油流动的第一和第二电磁换向阀23和24 系统7和10，用于测量第一和第二液压缸系统7和10的油的压力并用于产生与测量值对应的输出信号的第一和第二压力传感器27和28，以及用于接收 来自第一和第二压力传感器23和24的输出信号，并且用于基于第一和第二压力传感器23和24控制第一和第二电磁方向控制阀23和24的转弯 e输出信号和在低于保持蓄能器22抵抗油的压力的范围内的预定值。

公开(公告)号：EP1920860A1

公开(公告)日：2008-05-14

申请号：EP06782480.5

申请日：2006-08-08

申请人： SINTOKOGIO, LTD.

发明人： HIRATA, Minoru ,  HADANO, Yutaka ,  SEKI, Tsutomu

IPC分类号： B22C19/04 ,  B22C15/02 ,  B22C15/08

CPC分类号： B22C9/02 ,  B22C11/10 ,  B22C15/08 ,  B22C19/04

摘要： The purpose of this invention is to provide a method for making upper and lower molds and an apparatus therefor that can prevent the resulting molds from being warped and match-plates from being broken.
The method of this invention comprises the step of holding a match-plate 1 between cope and drag flasks 2 and 3, inserting upper and lower squeezing means 4 and 5 into the respective openings of the cope and drag flasks 2 and 3, which openings are opposite to the match-plate 1, so as to define upper and lower molding spaces, supplying molding sand to the upper and lower molding spaces, and then causing the upper and lower squeezing means 4 and 5 to move forward to the match-plate 1 so as to squeeze the molding sand and make upper and lower molds, wherein during the step of causing the upper and lower squeezing means to move forward to the match-plate the difference between the squeezing pressures of the upper and lower molding spaces is kept within a predetermined tolerance.

摘要翻译： 本发明的目的是提供一种用于制造上模和下模的方法及其装置，其可以防止所得模具翘曲并且匹配板不被破坏。 本发明的方法包括在上下砂箱2和3之间保持配合板1的步骤，将上下压榨装置4和5插入上盖和下砂箱2和3的各个开口中，这些开口是 与模板1相对，以便限定上下成型空间，向上下成型空间提供型砂，然后使上下挤压装置4和5向前移动到匹配板1 以挤压型砂并制成上下模具，其中在使上下挤压装置向前移动到匹配板的步骤期间，上模制空间和下模制空间的挤压压力之间的差保持在 一个预定的公差。

公开(公告)号：EP1184106A4

公开(公告)日：2004-09-15

申请号：EP01904343

申请日：2001-02-08

申请人： SINTOKOGIO LTD

发明人： KANETO KIMIKAZU ,  HIRATA MINORU ,  HADANO YUTAKA

IPC分类号： B22C15/08 ,  B22C15/24 ,  B22C15/28 ,  B22C23/00 ,  B22C15/34

CPC分类号： B22C15/24 ,  B22C15/08 ,  B22C15/28 ,  B22C23/00

摘要： An apparatus for introducing molding sand into a mold space defined by a pattern plate (1) having a pattern, a flask (2) placed on the pattern plate (1) for surrounding the pattern, and a filling frame (3) placed on the flask (2) and for compacting the molding sand in the mold space. The apparatus includes a sand hopper (10) having an inlet pipe (7) for introducing a first airflow at a low pressure (0.05 to 0.18 MPa) and compressed air thereinto from an upper part thereof, and a plurality of separated nozzles (17) at a lower portion thereof for blowing and introducing the molding sand held in the sand hopper into the mold space by the first airflow. First and second chambers (11 and 12) supply a second airflow under a low pressure (0.05 to 0.18 MPa) and compressed air to the molding sand in the sand hopper (10) to fluidize the molding sand. Vertically movable, multi-segmented squeeze feet (16) are mounted on the lower portion of the sand hopper (10) at various locations, each of which is adjacent to a side of each nozzle, for compacting the molding sand in the mold space. In the sand hopper (10), a cutter (14) is provided to mill sand balls contained in the fluidized mold ing sand within the sand hopper (10).