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公开(公告)号：JPS59191542A
公开(公告)日：1984-10-30
申请号：JP6721783
申请日：1983-04-15
Applicant: Toyota Motor Corp
Inventor： TAYA TAKEYOSHI , UENO HARUMI
Abstract: PURPOSE:To obtain a casting having no casting defects such as shrinkage cavity, etc. without using a riser by adhering a solid cooling medium to the thick walled part of a pattern corresponding to the thick walled part of the casting and charging a molten metal therein in this state. CONSTITUTION:A solid cooling medium of an iron chiller 10, etc. is attached by using an adhesive agent 9, etc. to the thick walled part 8 in the product part 1 of a pattern. A separately manufactured casting plan part 2 is attached thereto by an adhesive agent to manufacture the pattern. Such pattern is embedded in mold sand 6 which is a heat resistant granular material in a molding flask 5 and finally a pouring bush 7 is provided. A melt of an Al alloy, etc. is cast into the mold through the bush 7, and the mold is knocked out upon solidification, then the casting is subjected to a post treatment such as gate breaking. The casting having no defects such as shrinkage cavity, etc. in the thick walled part is obtd. by said investment casting method.
Abstract translation: 目的：为了通过将固体冷却介质粘附到与铸件的厚壁部分相对应的图案的厚壁部分并且在其中充入熔融金属来获得没有铸造缺陷的铸件，例如收缩腔等而不使用提升管 在这个状态。 构成：通过使用粘合剂9等将铁水冷却器10等的固体冷却介质附着到图案的产品部分1中的厚壁部分8上。 通过粘合剂将单独制造的铸造平面图部分2附接到其上以制造图案。 这种图案嵌入在模型砂5中的耐热颗粒材料的模砂6中，最后设置有浇注衬套7。 Al合金等的熔体通过衬套7铸造到模具中，并且在凝固时将模具敲掉，然后对铸件进行诸如闸门破碎的后处理。 在厚壁部分中没有诸如收缩腔等的缺陷的铸件被实现。 通过投资铸造方式。
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公开(公告)号：JPS59114035A
公开(公告)日：1984-06-30
申请号：JP22332082
申请日：1982-12-20
Applicant: Toyota Motor Corp
Inventor： TAYA TAKEYOSHI , UENO HARUMI , FUKUDA TOKIHARU
CPC classification number: B29C44/445
Abstract: PURPOSE:To manufacture a molded article with fine external appearance at low cost by a method wherein a cavity is vacuumized by sucking the air in the cavity and expandable thermoplastic resin particles are filled in the cavity by the suction force. CONSTITUTION:A cavity 3 is formed by closing a mold. Expandable resin particles are charged in a hopper and then fed in a pipe 10 by opening a stopper 11. Simultaneously, a suction apparatus is put into operation to produce negative pressure in the cavity 3 in order to suck the expandable resin particles, which is supplied into the pipe 10 by a predetermined amount, from the pipe 10 and to fill them in the cavity 3. Because pipes 8 and venting grooves 7 are fitted to thin parts 5, the complete filling of particles to which is regarded as specially difficult conventionally, and to the corners of the cavity 3 in order to suck the air in the cavity 3 therethrough, no filling failure of resin particles occurs, resulting in producing no rejected part.
Abstract translation: 目的：通过以下方式制造具有外观小的成型制品，其中通过吸入空腔中的空气将空腔抽真空，并通过吸力将可膨胀热塑性树脂颗粒填充到空腔中。 构成：通过闭合模具形成空腔3。 将可膨胀树脂颗粒装入料斗中，然后通过打开止动件11进入管道10中。同时，在空腔3中投入运行以产生负压的抽吸装置，以便吸收所供应的可膨胀树脂颗粒 从管道10排入预定量的管道10并将其填充到空腔3中。由于管道8和通气槽7装配到薄壁部分5上，因此，传统上被认为是特别困难的颗粒的完全填充， 并且到空腔3的角部以吸入空腔3中的空气，不会发生树脂颗粒的填充失败，导致不产生被拒绝部分。
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公开(公告)号：JPS63168251A
公开(公告)日：1988-07-12
申请号：JP31586086
申请日：1986-12-29
Applicant: TOYOTA MOTOR CORP
Inventor： FUKUDA TOKIHARU , TAYA TAKEYOSHI , FUJIO SHUNICHI
IPC: B22C9/04
Abstract: PURPOSE:To prevent the casting defect, such as misrun, cold shut, etc., caused by temp. drop of molten metal even in thin part by melting an expendable pattern by heating means before pouring the molten metal. CONSTITUTION:After packing heat resistant granular material 2 in the molding flask 1, compressed air is flowed from an air introducing hole 8, and then, the air is become to fine bubbles from upper part of a filter 7 to disperse and raise up, and the granular material 2 is made to floating state. Under this condition, the expendable pattern 3 integrated product part 32 with casting plan part 31 is laid into the granular material 2, so that the product part 32 is positioned between fixed plates 6, and the mold 1 is vibrated by a vibrator in order to increase the mold strength. Next, just before pouring the molten metal, the product part 32 of expendable pattern 3 is melted by heating a heater 4. In succession, the molten metal is poured into the portion of the pattern 3 and the solidification of molten metal is started and at the same time of reaching to binary eutectic temp., the compressed air is injected from an air nozzle 5. After completely solidifying, the compressed air is again introduced from the air introducing hole 8 to make the granular material 2 the floating state and take out the finished casting.
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公开(公告)号：JPS61193767A
公开(公告)日：1986-08-28
申请号：JP3244885
申请日：1985-02-20
Applicant: TOYOTA MOTOR CORP
Inventor： UENO HARUMI , TAYA TAKEYOSHI
Abstract: PURPOSE:To obtain a titled equipment for improving the casting quality and the productivity by providing a molding set robot, automatic carrying conveyor line of a casting frame, a pressure reducing system for holding the inside of the casting frame in a pressure-reduced state, a charging robot, a fetching robot of a casting, a casting frame inverting device, and a sand cooling device. CONSTITUTION:A casting frame 15 is transferred by an automatic carrying conveyor line by fluidizing the sand 17 in the casting frame 15 by a pressure flow mechanism containing a pressure valve 15b, a pressure system 18 and a pressure pipeline 19, and in this state, by embedding a disappearing model consisting of a design part 10a and a product part 10b by a molding set robot 4. When the casting frame is being transferred, the inside of the casting frame is evacuated to a prescribed degree of pressure reduction for a prescribed time by a pressure reducing mechanism, and by synchronizing with said line 5, a charging robot 7 executes charging to the casting frame 15. When it is coagulated, a fetching robot 8 fetches a casting by synchronizing with the line 5, and the casting frame 15 is transferred further and inverted by a casting frame inverting device, and cooled by a sand 17 cooling device by recovering the sand 17.
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公开(公告)号：JPS6164435A
公开(公告)日：1986-04-02
申请号：JP18700384
申请日：1984-09-06
Applicant: Toyota Motor Corp
Inventor： FUKUDA TOKIHARU , MIZUNO KUNIAKI , TAYA TAKEYOSHI , UENO HARUMI , HARAGA TETSUO
IPC: B29C44/00
Abstract: PURPOSE: To improve reinforcing strength and permit to effect foam molding by one kind of forming material by a method wherein the forming material at a position in an expandable resin molded product, whereat a strength is requested, is pressed and compressed locally by a pressurizing means attached to a forming mold to increase the filling density of the position.
CONSTITUTION: A cavity mold 1 and a core mold 5 are aligned and clamped, a piston is retreated by supplying compressed air to the compressed air intake port 15a of a cylinder 15 and a filling hole 13 is opened after the tip end of the piston is brought to the same plane as the end surface of a guide bush 14. Successively, the forming material M, constituting of polystylene resin particles prefoamed to 50 times, is loaded into a molding space 9 and a loading hole 13 from the introducing port 12b of a loader 10. The piston 16 is advanced successively by supplying compressed air to the compressed air introducing port 15b of the cylinder 15 and the forming material M is pushed to the forming surface 3a of the cavity section 3 to compress it. Heating medium, such as steam, hot air or the like, is supplied to the spaces A, B from the supplying port 2a of a box frame 2 and the supplying port 6a of the box frame 6. The forming material M is heated and foamed while the particles are fused mutually.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：为了提高增强强度并允许通过一种成型材料进行发泡成型，其中通过加压装置将需要强度的可膨胀树脂成型体中的位置处的成形材料压制和压缩 连接到成型模具以增加位置的填充密度。 构成：空腔模具1和芯模5被对准和夹紧，通过向气缸15的压缩空气吸入口15a供应压缩空气来回缩活塞，并且在活塞的顶端为活塞后，填充孔13打开 与引导衬套14的端面相同的平面。接着，将预先形成50次的聚苯乙烯树脂颗粒的成形材料M从引入口12b被装载到成型空间9和加载孔13中 装载器10.活塞16通过将压缩空气供给到缸体15的压缩空气引入口15b而连续前进，并且将成形材料M推到空腔部分3的成形表面3a以将其压缩。 加热介质如蒸汽，热空气等从箱体框架2的供应口2a和箱体6的供应口6a供应到空间A，B。成型材料M被加热和发泡 而颗粒相互融合。
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Patent Agency Ranking
公开(公告)号：JP2004122229A
公开(公告)日：2004-04-22
申请号：JP2003009582
申请日：2003-01-17
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： SATO MASAYUKI , TAYA TAKEYOSHI
CPC classification number: B21J5/004
Abstract: PROBLEM TO BE SOLVED: To provide a new method for forming a structural member which is different from a forming method by casting. SOLUTION: A material 4 to be formed is arranged on the projectingly provided part 1b of a lower die 1 and an upper die 3 is lowered to a position where it comes into contact with the material 4 to be formed. Next, the material 4 to be formed is softened or half melted by generating frictional heat between the material 4 to be formed and the lower die 1 by rotating the upper die 3 and also moving it while downward adding a prescribed load. When the material to be formed which is softened or sintered is filled in the cavity, the rotation of the upper die 3 is stopped and the material 4 to be formed is hardened or solidified by increasing the load. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JPH04191539A
公开(公告)日：1992-07-09
申请号：JP32383690
申请日：1990-11-26
Applicant: TOYOTA MOTOR CORP
Inventor： TAYA TAKEYOSHI
Abstract: PURPOSE:To prevent the separation of a cast iron liner by sticking an aluminum alloy layer onto the outer periphery of an aluminum coated steel plate through cast-forming process to form the cylindrical part of a brake drum, and fixing a frictional face between a brake shoe and the brake drum to the inner periphery of the steel plate through the cast-forming process. CONSTITUTION:The cylindrical part 12 of a brake drum 10 is cast-formed of aluminum alloy on the outside of a cylindrical steel plate 62 having an aluminum coated layer 66 on its outer periphery. In addition to that, a cast iron liner 64 opposite to the frictional member 40 of a brake shoe 26 is sticked to the inner periphery of the steel plate 62 by a cast-forming process. Thus since the cast iron liner 64, the steel plate 62, the aluminum coated layer 66 and an aluminum alloy layer 68 are mutually sticked in order, their sticking strength is high to make the occurrence of shear fracture difficult, and the reliability and durability of the brake drum can therefore be improved.
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公开(公告)号：JPS6360045A
公开(公告)日：1988-03-16
申请号：JP20278686
申请日：1986-08-29
Applicant: TOYOTA MOTOR CORP
Inventor： UENO HARUMI , TAYA TAKEYOSHI , FUJIO SHUNICHI
IPC: B22C9/04
Abstract: PURPOSE:To obtain a specified fluid condition automatically without dispersion by introducing compressed air to a molding material to fluidize the material and controlling the change in the fluid condition thereof according to the detection signal by a strain gage of a detecting member. CONSTITUTION:The compressed air flows through the pores of a bottom plate 2 into the upper chamber of a molding flask 1 and fluidizes the molding material 3 when the compressed air is supplied from a pipeline 10 into the lower chamber of the molding flask 1. The strain gage 5 does not output an voltage signal when the fluid condition at this time corresponds to a set value. However, if the fluid states varies and devices from the set value, the deflection quantity of the detecting member 4 changes and the strain gage 5 outputs the voltage signal. The signal is amplified by a power amplifier 8 and is then inputted to an electro-pneumatic proportional valve 9. Since the proportional valve 9 controls the pressure of the compressed air according to the voltage signal, the fluid state attains the specified state corresponding to the set value.
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公开(公告)号：JPS61241444A
公开(公告)日：1986-10-27
申请号：JP8222685
申请日：1985-04-19
Applicant: TOYOTA MOTOR CORP
Inventor： ITO TOSHIO , FUJIO SHUNICHI , TAYA TAKEYOSHI
Abstract: PURPOSE:To make the promotion of lightweightness attainable as well as to improve productivity ever so high, by forming a plastic mode in advance, while casting a crankshaft bearing cap part by means of a full-mold foundry. CONSTITUTION:Each crankshaft bearing cap part is first formed with a plastic model 10. At this stage, each plastic model 10 is easily formable into complex form without any consideration of a die releasing direction. Therefore, this plastic model is easily formable into such a fog form as abstracting unnecessary thickness while keeping the strength required. This plastic model is replaced with a metal by means of a full-mold process so that the crankshaft bearing cap part 12 replaced with a substitution metal is unnecessary to consider a split mold in time of casting, thus productivity is raised so high and, what is more, it is formable into an optimum light weight structure. Since a horizontal beam 11 is also formed with a separate single part in advance, geometrical form machining is made performable, thereby constituting to improvements in the promotion of lightweightness and productivity.
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公开(公告)号：JPS59191543A
公开(公告)日：1984-10-30
申请号：JP6721683
申请日：1983-04-15
Applicant: Toyota Motor Corp
Inventor： TAYA TAKEYOSHI , UENO HARUMI , FUKUDA TOKIHARU
Abstract: PURPOSE:To perform molding in a vacuum investment casting method with a good filling characteristic by providing pressuring and evacuating means in the bottom of a molding flask, using the molding flask having two mounting surfaces having an obtuse angle relative with each other and tilting and oscillating the flask. CONSTITUTION:A pressurizing means 5 and an evacuating means 6 are provided in the bottom of a molding flask 1 having a flat hexagonal columnar shape, etc. The flask 1 is fixed by the 1st mounting surface 7 to an oscillating table 8. Non-binding sand 3 is charged into the flask 1 and the sand 3 is fluidized by the means 5. A consumable pattern 4 consisting of a product part 9 and a casting plan part 10 is embedded in said sand. The opening of the flask 1 is covered with a combustible resin film 11, etc. and the inside of the flask is evacuated and solidifed by the means 6. The flask 1 is tilted in this state and is again fixed to the table 8 by the 2nd mounting surface 12 so that the flask 1 is oscillated by the same. The flask 1 is returned to the home position and while the evacuating state is maintained molten Al or the like is cast into the flask through a sprue 13. The mold is knocked out upon solidification. The casting having good dimensional accuracy without any casting defect is obtd. by such method.
Abstract translation: 目的：在具有良好填充特性的真空熔模铸造方法中通过在型坯的底部设置加压和抽空装置来进行成型，使用具有两个相对于彼此具有钝角的两个安装表面的倾斜摆动 烧瓶 构成：在具有平坦六边形柱形状的型砂箱1的底部设置有加压装置5和排气装置6.将烧瓶1通过第一安装面7固定在摆动台8上。 将沙子3装入烧瓶1中，砂3通过装置5流化。由产品部分9和铸造平面部分10组成的消耗型图案4嵌入所述砂中。 烧瓶1的开口用可燃性树脂膜11等覆盖，烧瓶内部通过装置6抽真空固化。烧瓶1在这种状态下倾斜并再次固定在工作台8上 第二安装表面12，使得烧瓶1摆动。 将烧瓶1返回到原始位置，并且在保持抽出状态的同时通过浇道13将Al或类似物投入烧瓶中。凝固时将模具敲掉。 没有任何铸造缺陷的铸件具有良好的尺寸精度。 通过这种方法。
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