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1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 发明专利

JPS57206550A SAND SUPPLYING DEVICE IN MOLDING MACHINE FOR MOLD 失效
公开(公告)号：JPS57206550A
公开(公告)日：1982-12-17
申请号：JP9129181
申请日：1981-06-13
申请人： TOYOTA MOTOR CO LTD , TOYO SANKI KK
发明人： MIGAMI TAKANORI , ITOU UMEKAZU
IPC分类号： B22C5/12 , B22C15/24
摘要： PURPOSE:To prevent the leakage of sand from a shutter part in the stage of blowing the molding sand in a hopper into a molding flask by means of a blow head and molding a mold for casting, by providing a rotary shutter between the hopper and the blow head. CONSTITUTION:Molding sand compounded and kneaded with a binder is blown into a molding flask 35 for molding a mold consisting of a top part 26 and a bottom part 38 from a blow head 14, whereby the mold is molded. The molding sand mixed beforehand with the binder is supplied at a constant rate from a hopper 8 into the head 14 then the head 14 is advanced to connect a blow plate 34 to the flask 35 and the molding sand is blown by the pressurized air from a hose 28 into the cavity for molding the mold in the flask 35. In this case, a rotary shutter 20 is provided between the sand supply hose 22 from the hopper 8 and the inlet of the head 14. When the molding sand is going to be blown into the flask 35, the opening of said shutter is closed to prevent the leakage of the molding sand from the shutter part to the outside.

7. 发明专利

JP2000237841A DEVICE FOR TAKING OUT SAND MOLD 失效
公开(公告)号：JP2000237841A
公开(公告)日：2000-09-05
申请号：JP3738999
申请日：1999-02-16
申请人： TOYOTA MOTOR CORP , AISIN TAKAOKA LTD , TOYO SANKI KK
发明人： NISHIMURA YASUO , SHIMIZU YASUYUKI , HOTTA YUKIO
IPC分类号： B22C21/08
摘要： PROBLEM TO BE SOLVED: To improve the versatility of a device, to prevent the development of crack, etc., of a sand core at the clamping time and to improve the productivity of the sand core. SOLUTION: In a taking-out device 10 of a sand mold for taking out the formed sand core from a formed mold by holding it with a clamping mechanism, the clamping mechanism is provided with a clamp interval variation means for changing the clamp interval of clamp claws 27, 37 holding the sand core W according to the size of the sand core W. Therefore, many kinds of the sand cores W having different sizes can be held in the state of loading no clamping force.

8. 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.

9. 发明专利

JPH0152101B2 失效
公开(公告)号：JPH0152101B2
公开(公告)日：1989-11-07
申请号：JP9129181
申请日：1981-06-13
申请人： TOYOTA JIDOSHA KK , TOYO SANKI KK
发明人： MIGAMI TAKANORI , ITO UMEKAZU
IPC分类号： B22C5/12 , B22C15/24

10. 发明专利

JPS6178536A Deflashing machine for core 失效
标题翻译：用于核心的破碎机
公开(公告)号：JPS6178536A
公开(公告)日：1986-04-22
申请号：JP20249184
申请日：1984-09-26
申请人： Toyo Sanki Kk , Toyota Motor Corp
发明人： UEKAWA TOMIO , ITOU UMEKAZU
IPC分类号： B22C23/00 , B22C9/18
CPC分类号： B22C9/18
摘要： PURPOSE:To make possible the automatic deflashing of a non-circular type core by pressing a roller cutter fitted loosely to a cutter shaft to the inside circumferential surface of a core bore by centrifugal force and rotating the cutter along the inside circumferential surface of the bore. CONSTITUTION:The roller cutter 24 which is provided with a blade 24b on the outside circumferential surface and is tapered in the lower part is loosely fitted to the cutter shaft 22 and the shaft 22 is attached to the bracket 21 of a revolving shaft 11a driven by an air motor 1. The water jacket core (a) set to a positioning jig 26 is fixed by the retaining jig 15 of a core retaining plate 13 and the bracket 21 inserted into the core (a) is rotationally driven. The cutter 24 rotates to deflash the core (a) while the cutter is held pressed to the inside surface of the bore (b) of the core (a) by the centrifugal force. The automatic deflahsing of the non-circular type core of the water jacket is thus made possible.
摘要翻译：目的：通过将通过离心力将通过离心力将通过离心力将松动地装配到切割轴的滚子切割器压入芯孔的内周面而使切割器沿着孔的内周面旋转来使得非圆形型芯的自动除屑。构成：在外周面上设置有叶片24b并在下部锥形的滚子切割器24松动地装配到切割器轴22上，并且轴22安装在由轴驱动的旋转轴11a的支架21上设置到定位夹具26的水套芯（a）通过芯保持板13的保持夹具15固定，并且插入到芯（a）中的支架21被旋转地驱动。当刀具通过离心力将切割器保持压到芯（a）的孔（b）的内表面时，切割器24旋转以使芯（a）摆动。因此，能够使水套的非圆形型芯自动脱水。

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