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1. 发明专利

JPH08332548A METHOD FOR MOLDING SAND MOLD AND IS APPARATUS 失效
公开(公告)号：JPH08332548A
公开(公告)日：1996-12-17
申请号：JP13810995
申请日：1995-06-05
申请人： TOYO SANKI KK
发明人： SANO KOJI
IPC分类号： B22C9/14 , B22C15/24 , B22C23/00 , B22C25/00
摘要： PURPOSE: To improve productivity by separating a formed mold injecting molding sand from a de clamping mechanism, firing at a first firing position and setting the other forming mold at a second firing position into a die clamping mechanism to execute the injection into the other forming mold during firing. CONSTITUTION: When the de clamping of an A die completes, an injecting tank 32x is shifted to the A die direction with a traversing cylinder 34y and a nozzle 32n is connected with an opening hole of the A die to inject the molding sand and the nozzle is returned back to the original position. The A die is shifted to a firing part 40 direction by working the drawing-in mechanism 50 and fired at the first firing position C with a first roller conveyor 46a. A B die positioned at the second firing position D is shifted to a lower die supporting mechanism 22 with a second roller conveyor 46a and the drawing-in mechanism and the opening between an upper die and the lower die, is executed to take out a sand mold as the molding for product by pushing up with an ejecting pin. The B die is clamped as the same way as the A die to execute the injection of the molding sand. Since the injection of the molding sand into the B die is executed during firing the A die in such a way, the productivity can be improved.

2. 发明专利

JPH1110283A HORIZONTAL SPLITTING TOP BLOWING TYPE CORE MOLDING MACHINE 失效
公开(公告)号：JPH1110283A
公开(公告)日：1999-01-19
申请号：JP16741997
申请日：1997-06-24
申请人： TOYOTA MOTOR CORP , TOYO SANKI KK
发明人： SATO TAKUO , IWATA KIYOSHI , TANI DAISHIROU , NAKAJIMA ITSURO , SANO KOJI
IPC分类号： B22C15/24
摘要： PROBLEM TO BE SOLVED: To reduce an equipment space and to resolve such problem as leakage of sand. SOLUTION: A core molding machine is provided with upper and lower metallic molds 8, 4 vertically opened/closed, a blow head device 15 arranged above the upper metallic mold 8 and injecting raw material sand into the fastened upper and lower metallic molds 8, 4 and an ejecting device 29 arranged above the upper metallic mold 8 and ejecting a formed product formed in the upper and lower metallic molds 8, 4. The blow head device 15 is arranged so as to be elevatable/lowerable above the upper metallic mold 8. The ejecting device 29 can be advanced/retreated in the horizontal direction between the upper metallic mold 8 and the blow head device 15, and can be elevated/lowered integrally with the blow head device 15. The blow head device 15 is arranged so as to be only elevatable/lowable and only the ejecting device 29 is shifted in the horizontal direction. Therefore, the equipment space in the horizontal direction can be reduced and also, the leakage of the raw material sand supplied into the blow head device 15 can be prevented.

3. 发明专利

JPH09234547A MOLD FORMING DEVICE AND METHOD THEREFOR 失效
公开(公告)号：JPH09234547A
公开(公告)日：1997-09-09
申请号：JP25604096
申请日：1996-09-27
申请人： TOYOTA MOTOR CORP , TOYO SANKI KK
发明人： SATO TAKUO , TANI DAISHIROU , IWATA KIYOSHI , TAKAHASHI SETSUZO , SANO KOJI
IPC分类号： B22C15/24
摘要： PROBLEM TO BE SOLVED: To surely prevent the flow-out of molding sand from a nozzle after blowing the molding sand and to unnecessitate negative pressure source, etc., conventionally needed to prevent the flow-out of the molding sand. SOLUTION: In this mold forming device, the mold is formed by inserting the nozzle 14n by a prescribed depth to a molding sand blowing hole Ka in a forming mold K and blowing the molding sand into a cavity in the forming mold K from this nozzle with pressure gas. The device is provided with a molding sand discharging hole 14K formed on the side surface of the nozzle in the direction where the molding sand does not naturally drop, and guide means 14a, 14t, 14r for guiding the molding sand discharged from the molding sand discharging hole 14k to the front part of the nozzle 14n.

4. 发明专利

JPH0985391A MOLDING-BURR REMOVING MACHINE FOR SAND CORE 失效
公开(公告)号：JPH0985391A
公开(公告)日：1997-03-31
申请号：JP24970995
申请日：1995-09-27
申请人： TOYO SANKI KK
发明人： SANO KOJI
IPC分类号： B22C9/10 , B22C23/00
摘要： PROBLEM TO BE SOLVED: To prevent the breakage of a molding-burr removing material and a sand core, in a molding-burr removing work. SOLUTION: In the burr removing machine for sand core removing the burr developed on a parting surface of a die at the time of forming the sand core, the deburring material 12 for shaving out the burr from a burr-sticking surface of the sand core, a shifting means for shifting the deburring material 12 while following on the burr-sticking surface of the sand core and a displacing mechanism 16 arranged between the burr removing material and the shifting means and displacing the burr removing material to the direction absorbing a force when the larger force than a prescribed force is applied to the molding deburring material 12, are provided. Therefore, when the larger force than the prescribed force is applied to the deburring material 12 at the time of removing this burr, the displacing mechanism 10 is moved and the deburring material 12 is displaced to the direction absorbing this force.

5. 发明专利

JPH08187546A METHOD FOR MOLDING CORE 失效
公开(公告)号：JPH08187546A
公开(公告)日：1996-07-23
申请号：JP32877094
申请日：1994-12-28
申请人： TOYOTA MOTOR CORP , TOYO SANKI KK
发明人： TOBITO MASAMI , INASAWA SHINJI , TSUJI KENJIRO , NAGAI SHUSUKE , SANO KOJI
IPC分类号： B22C9/10 , B22C13/08
摘要： PURPOSE: To make mold clamping mechanism in a core molding device a simple structure by preventing the deviation in a position of metallic molds caused by gravity. CONSTITUTION: In a core molding method for molding the sand core by filling molding sand into a cavity of the metallic molds 14, 16 from the upper part of the clamped metallic molds 14, 16, a process for mold clamping from the upper and the lower directions with mold clamping mechanism 13 for metallic molds 14, 16 and a process for positioning the metallic molds 14, 16 so that the molding sand blowing hole in the metallic molds 14, 16 becomes upward by removing the clamping metallic molds 14, 16 from a mold clamping mechanism 13 and singly turning, are provided. Therefor, the deviation in the position of the metallic molds caused by the gravity is not caused unlike the conventional method where the molds are clamped from side direction.

6. 发明专利

JPH0839195A MOLDING METHOD FOR SAND MOLD AND APPARATUS THEREFOR 失效
公开(公告)号：JPH0839195A
公开(公告)日：1996-02-13
申请号：JP17875294
申请日：1994-07-29
申请人： TOYOTA MOTOR CORP , TOYO SANKI KK
发明人： HITO MASAMI , INASAWA SHINJI , NAGAI SHUSUKE , SUGISHIMA SAKAE , SANO KOJI
IPC分类号： B22C15/24 , B22C11/02 , B22C13/12
摘要： PURPOSE:To improve the working ratio of a molding apparatus for sand mold by burning molding sand in a certain mold at a burning position during blowing the molding sand into another mold. CONSTITUTION:Metallic molds A are clamped by an upper mold fixing device 60 and a lower mold fixing device 16. a blow head 74 is connected to the metallic molds A to blow the molding sand into the metallic molds A. The blow head 74 is retreated, and the connection of the upper metallic mold A1 and the upper mold fixing device 60 are released. The metallic molds A are descended by operating a metallic mold elevating/lowering cylinder 13. Then, the metallic molds A are sent to a first fixed conveyor 41 from an elevating/ lowering roller conveyor 30 and the molding sand in the metallic molds A is burnt at this position. Metallic molds B placed on a second fixed conveyor 42 are drawn to the position of the roller conveyor 30 by a draw-in mechanism 52. The metallic molds B are clamped by the fixing devices 16, 60 and the molding sand is blown into the metallic molds B during burning the metallic molds A.

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