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公开(公告)号：US4103733A
公开(公告)日：1978-08-01
申请号：US682469
申请日：1976-05-03
申请人： Albert Edwards
发明人： Albert Edwards
摘要： A method and apparatus for preparing foundry moulds or cores from a cold-setting sand based foundry mixture. The foundry mixture is introduced to a mould or core box and during setting of the mixture in the box suction is applied to the box to accelerate the setting time.
摘要翻译： 一种用于从冷冻砂基铸造混合物制备铸造模具或芯的方法和装置。 将铸造混合物引入到模具或芯盒中，并且在箱中的混合物的设置期间将吸力施加到箱体上以加速凝固时间。
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公开(公告)号：US3989086A
公开(公告)日：1976-11-02
申请号：US508328
申请日：1974-09-23
申请人： Erwin Buhrer
发明人： Erwin Buhrer
CPC分类号： B22C15/245
摘要： A storage vessel filled with a granular composition for forming mold parts has a bottom opening aligned with an opening in a pressure vessel located directly below the storage vessel. Upon being filled with the granular composition from the storage vessel, the pressure vessel is arranged so that the opening can be closed. The pressure vessel is movable vertically toward and away from the storage vessel. In its upper position it can be filled with the composition, and in its lower position can evacuate the granular composition into a cavity in a core molding device through nozzles situated at the bottom of the pressure vessel. The nozzles are directed into bores in the molding device and allow the granular material to exit when a compressed air source within the pressure vessel is activated.
摘要翻译： 填充有用于形成模具部件的颗粒组合物的储存容器具有与位于储存容器正下方的压力容器中的开口对齐的底部开口。 当从储存容器填充颗粒状组合物时，压力容器被布置成可以关闭开口。 压力容器可垂直移动并远离储存容器移动。 在其上部位置，其可以填充组合物，并且在其较低位置可以通过位于压力容器底部的喷嘴将颗粒组合物排出到芯模制装置中的空腔中。 喷嘴被引导到模制装置中的孔中，并且当压力容器内的压缩空气源被激活时允许颗粒物质离开。
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公开(公告)号：US3974872A
公开(公告)日：1976-08-17
申请号：US425493
申请日：1973-12-17
申请人： Erwin Buhrer
发明人： Erwin Buhrer
CPC分类号： B22C15/12
摘要： In a system for the production of molds for casting, a pair of pattern plates are disposed in an opposed facing relationship with a frame located therebetween in a manner whereby the opposing pattern surfaces of the plates, together with the frame, define an enclosed cavity within which a casting mold section may be formed. The frame is preferably provided with an opening through which the cavity may be filled with molding material which, after hardening, forms a mold section. After separation of the pattern plates and frame, the mold section is conveyed into assembled relationship with one or more other mold sections in order to form a mold for casting. Pattern plates and frames may be arranged in a mass production facility to continuously form mold sections which, when assembled, will provide a mold stack for producing multiple castings.
摘要翻译： 在用于生产用于铸造的模具的系统中，一对图案板以与位于其间的框架相对的对置关系设置，使得板的相对的图案表面与框架一起在其内限定了封闭的腔体 可以形成铸模部分。 框架优选地设置有开口，空腔可以通过该开口填充有模制材料，其在硬化之后形成模具部分。 在分离图案板和框架之后，将模具部分与一个或多个其它模具部分输送成组装关系，以形成铸造模具。 图案板和框架可以布置在批量生产设备中以连续地形成模具部分，其在组装时将提供用于生产多个铸件的模具堆叠。
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公开(公告)号：US3688830A
公开(公告)日：1972-09-05
申请号：US3688830D
申请日：1969-08-28
摘要： A series of expendable shell molds is formed in a permanent pattern having a series of connected mold cavities. A passage extends from outside the pattern into each end of the series. A suspension of parting agent is blown by gas or superheated steam into the cavities through one of the passages while the other is vented through an orifice of controlled size to maintain the desired pressure. To coat evenly the parting agent may then be blown in the opposite direction through the cavities. Thereafter molding sand is blown into the pattern through one or both of the passages. Imperfect closing of the separatable pattern is detected by blowing air into a third passage which ends at the parting plane. The air is supplied from a constant pressure source through an orifice of predetermined size and the pressure is measured on the down-stream side of the orifice. A blow box connected to a sand hopper is pivoted to be swung toward and away from the pattern. A sand valve and a vent valve cooperate to dump sand from the hopper rapidly into the blow box. Gas under pressure is distributed throughout the sand from below to fluidize the sand and simultaneously force is applied above the sand to flow the mass into the pattern.
摘要翻译： 一系列消耗性壳模具形成为具有一系列连接的模腔的永久模式。 通道从图案外部延伸到系列的每一端。 分离剂的悬浮液通过气体或过热蒸汽通过一个通道吹入空腔，而另一个通过可控尺寸的孔排放以保持所需的压力。 为了均匀地涂覆分离剂，然后可以通过空腔沿相反方向吹送。 此后，通过一个或两个通道将型砂吹入图案。 通过将空气吹入在分型平面上结束的第三通道来检测可分离图案的不完全关闭。 空气从恒压源通过预定尺寸的孔提供，并且在孔的下游侧测量压力。 连接到砂斗的吹气箱枢转以朝向和远离模式摆动。 砂阀和排气阀配合，将料斗中的沙子快速吸入吹风箱。 压力下的气体从下面分布在整个沙子中，以使沙子流态化，同时将力施加在沙子上方以将物质流入模式。
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公开(公告)号：US3684000A
公开(公告)日：1972-08-15
申请号：US3684000D
申请日：1969-08-28
发明人： DEBERG WALTER H VAN
摘要： A series of expendable shell molds is formed in a permanent pattern having a series of connected mold cavities. A passage including the cavities extends through the pattern. A swinging blow-vent nozzle is mounted at each end of the passage, the two nozzles being rotationally fixed to each other. In one position the first nozzle blows into the pattern while the second nozzle vents the pattern. In a second position the second nozzle blows into the pattern while the first nozzle vents the pattern. In a third position one of the nozzles blocks the passage while the other has been swung out of the way to provide access for a sand blow box which can then blow sand into the pattern. The nozzles are clamped against the pattern by a hydraulic cylinder which moves them toward each other on a shaft. The device includes means for separating the pattern, lifting the gang of molds out of the pattern and stripping the molds from pins on which they are formed or by which they are lifted. The device for elevating the finished molds includes means for blowing out the molds as the patterns are raised. The apparatus is particularly suitable for making cores for making tappet bodies and for making molds for casting engine valves.
摘要翻译： 一系列消耗性壳模具形成为具有一系列连接的模腔的永久模式。 包括空腔的通道延伸穿过图案。 在通道的每个端部安装有摆动吹风嘴，两个喷嘴彼此旋转地固定。 在一个位置，第一喷嘴吹入图案，而第二喷嘴喷出图案。 在第二位置，第二喷嘴吹入图案，而第一喷嘴排出图案。 在第三位置，其中一个喷嘴堵住通道，而另一个已经向外摆动，以提供进入沙子吹扫箱的通道，然后可以将沙子吹入图案中。 喷嘴通过液压缸夹紧在图案上，液压缸使它们在轴上彼此相对移动。 该装置包括用于分离图案的装置，将模具的组合从图案中提出，并将模具从它们所形成的销或者被提升的销上剥离。 用于提升成品的模具的装置包括当图案升高时吹出模具的装置。 该装置特别适于制造用于制造挺杆体的芯和用于制造用于铸造发动机阀的模具。
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公开(公告)号：US3477493A
公开(公告)日：1969-11-11
申请号：US3477493D
申请日：1967-05-04
申请人： OGLEBAY NORTON CO
CPC分类号： B22D7/10
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公开(公告)号：US3442320A
公开(公告)日：1969-05-06
申请号：US3442320D
申请日：1966-08-16
申请人： ROY C HATHORN
发明人： HATHORN ROY C
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公开(公告)号：US4318437A
公开(公告)日：1982-03-09
申请号：US182429
申请日：1980-08-29
申请人： Willard E. Kemp
发明人： Willard E. Kemp
CPC分类号： B22C9/03
摘要： A metal casting system including novel process and apparatus wherein the shape of the casting is defined by a thin thermal degrading film supported by a particulate bed. A pattern having the shape of the desired casting is surrounded by the tight fitting film with one end of the pattern exposed. A particulate bed is tightly packed about the film-surrounded pattern. A reduced fluid pressure is established within the particulate bed relative to the pattern so that the surrounding film is tightly held by atmospheric pressure against the particulate bed and slightly released from the pattern. The pattern is removed from the surrounding film and leaves therein a cavity bounded by the film with the shape of the desired casting. The cavity is filled with molten metal for forming the desired casting simultaneously with the vaporization of the film. The present metal casting system is especially useful for the casting of cylindrical shapes using unique molds and a novel flask is provided for such a casting process.
摘要翻译： 一种金属铸造系统，包括新颖的工艺和装置，其中铸件的形状由由颗粒床支撑的薄的热降解膜限定。 具有所需铸件形状的图案被紧密贴合的薄膜包围，图案的一端露出。 颗粒床围绕胶片包围的图案紧密包装。 在颗粒床内相对于图案建立了减小的流体压力，使得周围的膜被大气压紧紧地保持在颗粒床上并且稍微从图案中释放出来。 将图案从周围的膜上除去，并在其中留下由膜所界定的具有所需铸件形状的空腔。 空腔充满熔融金属，用于与薄膜蒸发同时形成所需的铸件。 本发明的金属铸造系统对于使用独特的模具铸造圆柱形形状特别有用，并且为这种铸造工艺提供了新的烧瓶。
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公开(公告)号：US3983923A
公开(公告)日：1976-10-05
申请号：US564143
申请日：1975-04-01
CPC分类号： B22C15/24
摘要： A sand blowing head includes an air accumulator above a tank in which a metered quantity of sand may be charged. The tank is charged when offset from the accumulator and is movable to a blowing position in which an upper tank inlet is aligned with a downwardly extending outlet from the accumulator. A seal between the inlet and outlet is provided.
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10.发明授权Apparatus for preparing foundry molds or cores from cold quick setting sand/binder/catalyst mixtures 失效用于准备快速定型砂糖/粘合剂/催化剂混合物
公开(公告)号：US3822737A
公开(公告)日：1974-07-09
申请号：US23769972
申请日：1972-03-24
申请人： BAKER PERKINS LTD
发明人： EDWARDS A
CPC分类号： B22C5/0472 , B22C15/24
摘要： A method and apparatus for preparing foundry moulds or cores wherein separate charges of sand and binder on the one hand and sand and catalyst on the other hand are supplied to a mixing chamber in which the separate charges are mechanically intermixed to produce a final sand/binder/catalyst mixture. The final mixture is then passed by gravity into a blowing chamber and the mixing chamber and the blowing chamber are moved apart to allow the final mixture to be blown from the blowing chamber into a mould or core box and further to allow the mixing chamber to be cleaned by suitable cleaning means.
摘要翻译： 一种用于制备铸造模具或芯的方法和装置，其中一方面砂和粘合剂的单独装料和另一方面的砂和催化剂被供应到混合室，其中分离的装料机械地混合以产生最终的砂/粘合剂 /催化剂混合物。 然后将最终混合物通过重力通入吹风室，并将混合室和吹风室分开移动，使最终混合物从吹风室吹入模具或芯盒中，并进一步允许混合室为 用合适的清洁手段清洗。
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