The utility model discloses a partition isostatic molding core, including isostatic molding core and composite core surface film, a plurality of oil cavity is formed between the film and the core, all of the oil cavity core by region, the oil chamber within the same region with the oil chamber in different areas of isolation, core the matrix is respectively provided with a through hole communicated with each oil cavity. The oil cavity on the forming surface of the mold core is divided into a plurality of areas, and the oil cavities in the same area are communicated with each other, and the oil cavities in different areas are sealed and isolated. In such a way that each region of the oil chamber can be used to separate oil supply, oil pressure and independent regulation of each oil, for firing size error, fabric density difference, you can through the hydraulic adjustment of the corresponding region, so as to ensure the area density of pressed brick uniform, reduce firing size error.
【技术实现步骤摘要】
分区等静压成型模芯
本技术涉及陶瓷砖的成型模具
,具体涉及一种可分区域控制的等静压成型模芯。
技术介绍
陶瓷砖粉料成型采用等静压成型模具是目前陶瓷砖生产普遍使用的传统方式。目前,陶瓷砖等静压成型的坯体经变温烧成后,单腔件的烧成尺寸误差和多腔件的烧成尺寸误差,一般是采用调节布料误差、模具上垫垫片、增加模具的等静压面积、控制烧成气氛等方式解决。然而,传统的陶瓷砖烧成尺寸误差调节耗时较长,调节范围受到限制,致使陶瓷砖烧成尺寸误差,单腔件大小头、收腰的尺寸误差和多腔件之间的尺寸误差等质量缺陷。陶瓷砖有磨边和不磨边的陶瓷砖。不磨边尺寸差直接影响着产品的品质;磨边的陶瓷尺寸差影响着磨边量和磨边质量。等静压成型模具是在模芯的成型面上粘结胶片,并且在成型面与胶片之间分隔有若干相互连通的油腔,油腔内充注液压油。压制砖坯时,利用连通器原理,每个油腔的胶片的压强相等,以此来实现砖坯各处的密度均匀,减少烧成尺寸误差。但是这种等静压成型模具一般都局限于布料均匀度各个区域误差不大的情况,如果误差过大的话,还是难以保证压制砖坯时各区域密度均匀。原因是胶片不可能过度变形,对于缺粉严重的区域 ...
【技术保护点】
一种分区等静压成型模芯,包括有等静压成型模芯,模芯的型面复合有胶片,胶片与模芯之间形成有若干油腔,其特征在于:所述模芯的所有油腔按区域划分,同一区域内的油腔连通,不同区域的油腔封闭隔离,模芯的基体内分别开设有连通各个区域油腔的通孔。
【技术特征摘要】
1.一种分区等静压成型模芯,包括有等静压成型模芯,模芯的型面复合有胶片,胶片与模芯之间形成有若干油腔,其特征在于:所述...
【专利技术属性】
技术研发人员:周文鹏,周庆添,何键彬,
申请(专利权)人:佛山市新鹏工业服务有限公司,
类型:新型
国别省市:广东,44
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