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公开(公告)号：US06257866B1
公开(公告)日：2001-07-10
申请号：US09286046
申请日：1999-04-05
IPC分类号： A01J2100
CPC分类号： B29C51/06 , B29C51/10 , B29C51/42 , B29C51/422 , B29C51/426 , B29C2791/006 , B29C2791/007 , B29C2795/002
摘要： A sheet of thermoformable plastic material is positioned by air pressure adjacent a planar surface of a heating plate to heat and at least soften the sheet. The softened sheet is draped over a mold by the force of air pressure to form a molded part upon cooling. Registration pins engaging the sheet maintain the sheet in registration with the mold to insure correct positioning of any indicia on the sheet with corresponding elements of the mold. A plurality of sheets may be fused to one another during heating of the sheets.
摘要翻译： 一片可热成形的塑料材料通过与加热板的平坦表面相邻的空气压力定位，以加热并且至少软化片材。 通过空气压力将软化的片材覆盖在模具上，以在冷却时形成模制部件。 与纸张接合的定位销保持纸张与模具对准，以确保在模具上具有相应元件的任何标记上的任何标记的正确定位。 在片材的加热期间，多个片材可以彼此熔合。
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公开(公告)号：US06210623B1
公开(公告)日：2001-04-03
申请号：US09365035
申请日：1999-08-02
申请人： Michael L. Fritz , Alton L. Fritz
发明人： Michael L. Fritz , Alton L. Fritz
IPC分类号： B29C4302
CPC分类号： B21D26/029 , B21D22/12 , B21D26/031 , B21D26/059 , B29C33/0038 , B29C51/10 , B29C51/262 , B29C2791/007
摘要： A method for blow down hydroforming sheet material includes hydraulically inflating a seal intermediate a pair of wall members and disposed between a platen and a table in circumscribing relationship with a cavity formed in the platen to seal the cavity and injecting gas into the cavity to urge conformance of the sheet material with a mold placed upon the table.
摘要翻译： 用于吹扫液压成形片材的方法包括液压地膨胀一对壁构件中间的密封件，并且设置在压板和台之间，与形成在压板中的空腔形成封闭关系，以密封空腔并将气体注入空腔以促进一致性 的模具放置在桌子上。
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公开(公告)号：US5545026A
公开(公告)日：1996-08-13
申请号：US451549
申请日：1995-05-26
申请人： Michael L. Fritz , Alton L. Fritz
发明人： Michael L. Fritz , Alton L. Fritz
CPC分类号： B29C43/3642 , B29C43/3607 , B29C51/10 , B29C43/12 , B29K2069/00 , Y10S425/019 , Y10S425/047
摘要： A platen for applying pressure during hydroforming of polycarbonate and similar sheet material includes a flexible diaphragm for applying pressure in response to hydraulic fluid under pressure within a platen cavity and a diaphragm circumscribing sealing member for inhibiting seepage of hydraulic fluid and for preventing outward migration of the material of the diaphragm during a hydroforming operation. The junction between the sealing member and the diaphragm is conforming and void free to prevent hydraulic fluid flow therebetween. To help contain the hydraulic fluid within the platen cavity, a circumscribing inwardly extending foot of the diaphragm provides a mechanical and dynamic seal against an adjacent surface of the platen cavity.
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公开(公告)号：US5466146A
公开(公告)日：1995-11-14
申请号：US239258
申请日：1994-05-06
申请人： Michael L. Fritz , Alton L. Fritz
发明人： Michael L. Fritz , Alton L. Fritz
CPC分类号： B29C43/3642 , B29C43/3607 , B29C51/10 , B29C43/12 , B29K2069/00 , Y10S425/019 , Y10S425/047
摘要： A platen for applying pressure during hydroforming of polycarbonate and similar sheet material includes a flexible diaphragm for applying pressure in response to hydraulic fluid under pressure within a platen cavity and a diaphragm circumscribing sealing member for inhibiting seepage of hydraulic fluid and for preventing outward migration of the material of the diaphragm during a hydroforming operation. The junction between the sealing member and the diaphragm is conforming and void free to prevent hydraulic fluid flow therebetween. To help contain the hydraulic fluid within the platen cavity, a circumscribing inwardly extending foot of the diaphragm provides a mechanical and dynamic seal against an adjacent surface of the platen cavity.
摘要翻译： 用于在聚碳酸酯和类似片材的液压成形期间施加压力的压板包括柔性隔膜，用于响应于压力腔内的压力下的液压流体施加压力，以及用于抑制液压流体渗出并防止液压流体的向外迁移的膜片外接密封构件 在液压成型操作期间隔膜的材料。 密封构件和隔膜之间的接合部是一致且无空隙的，以防止液压流体在其间流动。 为了帮助容纳压板空腔内的液压流体，隔膜的向外延伸的脚提供了抵靠压板空腔的相邻表面的机械和动态密封。
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公开(公告)号：US5932167A
公开(公告)日：1999-08-03
申请号：US833716
申请日：1997-04-09
申请人： Michael L. Fritz , Alton L. Fritz
发明人： Michael L. Fritz , Alton L. Fritz
IPC分类号： B21D22/12 , B21D26/029 , B21D26/031 , B21D26/059 , B29C33/00 , B29C51/10 , B29C51/26
CPC分类号： B21D26/029 , B21D22/12 , B21D26/031 , B21D26/059 , B29C33/0038 , B29C51/10 , B29C51/262 , B29C2791/007
摘要： A method for blow down hydroforming sheet material includes hydraulically inflating a seal intermediate a pair of wall members and disposed between a platen and a table in circumscribing relationship with a cavity formed in the platen to seal the cavity and injecting gas into the cavity to urge conformance of the sheet material with a mold placed upon the table.
摘要翻译： 用于吹扫液压成形片材的方法包括液压地膨胀一对壁构件中间的密封件，并且设置在压板和台之间，与形成在压板中的空腔形成封闭关系，以密封空腔并将气体注入空腔以促进一致性 的模具放置在桌子上。
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公开(公告)号：US5679388A
公开(公告)日：1997-10-21
申请号：US545970
申请日：1995-10-20
申请人： Michael L. Fritz , Alton L. Fritz
发明人： Michael L. Fritz , Alton L. Fritz
IPC分类号： B21D22/12 , B21D26/029 , B21D26/031 , B21D26/059 , B29C33/00 , B29C51/10 , B29C51/26
CPC分类号： B21D26/029 , B21D22/12 , B21D26/031 , B21D26/059 , B29C33/0038 , B29C51/10 , B29C51/262 , B29C2791/007
摘要： A blow down hydroforming apparatus for sheet material incorporates an hydraulically inflatable seal disposed between a platen and a table in circumscribing relationship with a cavity formed in the platen to maintain the pressure of gas in the cavity during forming of the sheet material.
摘要翻译： 用于片材的吹塑液压成形装置包括液压可充气密封件，其设置在压板和台之间，与形成在压板中的空腔形成外围关系，以在成形片材期间保持气体在空腔中的压力。
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公开(公告)号：US5460773A
公开(公告)日：1995-10-24
申请号：US105033
申请日：1993-08-11
申请人： Michael L. Fritz , Alton L. Fritz
发明人： Michael L. Fritz , Alton L. Fritz
IPC分类号： B21D22/12 , B21D26/029 , B21D26/031 , B21D26/059 , B29C33/00 , B29C51/10 , B29C51/26
CPC分类号： B21D26/029 , B21D22/12 , B21D26/031 , B21D26/059 , B29C33/0038 , B29C51/10 , B29C51/262 , B29C2791/007
摘要： A blow down hydroforming apparatus for sheet material incorporates an hydraulically inflatable seal disposed between a platen and a table in circumscribing relationship with a cavity formed in the platen to maintain the pressure of gas in the cavity during forming of the sheet material.
摘要翻译： 用于片材的吹塑液压成形装置包括液压可充气密封件，其设置在压板和台之间，与形成在压板中的空腔形成外围关系，以在成形片材期间保持气体在空腔中的压力。
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