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21. 发明授权

US5939107A Preheater for differential pressure forming machine 失效
标题翻译：差压成型机预热器
公开(公告)号：US5939107A
公开(公告)日：1999-08-17
申请号：US873342
申请日：1997-06-11
申请人： Albert W. Arends , Andrew P. Richard
发明人： Albert W. Arends , Andrew P. Richard
IPC分类号： B29B13/02 , B29C51/42 , B29C31/00
CPC分类号： B29B13/023 , B29C51/421
摘要： A preheater and method of preheating a thermoplastic sheet prior to entry of the sheet into a differential pressure forming machine which forms an article in the sheet. The preheater includes mechanism for initially threading a sheet in a generally horizontal plane, mechanism for concurrently displacing upstream and downstream portions of the sheet in vertically opposite directions relative to the horizontal plane to dispose a portion of the sheet in an upstanding plane. A heater is provided for heating the upstanding portion of the sheet in the upstanding plane. After the sheet has been repositioned with a portion in the upstanding plane, the heater is laterally moved from an inoperative position to a sheet heating position receiving the portion of the sheet at the sheet heating station. Mechanism is provided for selectively moving the sheet downstream after the sheet has been vertically displaced.
摘要翻译：在将片材进入压片成型机之前预热热塑性片材的预热器和方法，该压差成型机在片材中形成制品。预热器包括用于在大致水平的平面中初始地穿过纸张的机构，用于同时地使片材的上游和下游部分相对于水平平面在垂直相反的方向上移位的机构，以将片材的一部分布置在直立平面中。提供加热器用于加热直立平面中片材的直立部分。在片材已经被重新定位在直立平面中的一部分之后，加热器横向从不工作位置移动到片材加热位置，该片材加热位置在片材加热站处接收片材的该部分。提供了用于在片材已经垂直位移之后选择性地移动片材下游的机构。

22. 发明授权

US4666544A Thermoforming methods 失效
标题翻译：热成型方法
公开(公告)号：US4666544A
公开(公告)日：1987-05-19
申请号：US776685
申请日：1985-09-16
申请人： Robert C. Whiteside , Albert W. Arends , Roland Karklin
发明人： Robert C. Whiteside , Albert W. Arends , Roland Karklin
IPC分类号： B29C51/22 , B29C51/26 , B32B31/00
CPC分类号： B29C51/262 , B29C51/22 , Y10T156/1028 , Y10T156/1051
摘要： Thermoforming machines with a heating station and a downstream mold station have carrier clamp frames for gripping the edges of sheets of plastic at a load station and indexing them successively to a heating station and a mold station. The carrier frame members to which the plastic may be releasably clamped carry their own remotely operated clamps and are themselves expandable and contractible to a condition in which, prior to molding, they control the sag in the sheet formed during heating of the sheets to differential pressure forming temperature. The plastic sheet can be molded to only a portion of a product which functions as a mold member.
摘要翻译：具有加热站和下游模具站的热成型机具有用于在装载站处夹持塑料片边缘的载体夹持框架，并将它们依次分配到加热站和模具站。可以可释放地夹紧塑料的承载框架构件携带它们自己的远程操作的夹具，并且本身可膨胀和收缩到其中，在模制之前，它们控制在片材加热期间形成的片材中的下垂到差压成型温度。塑料片可以仅模制成用作模具构件的产品的一部分。

23. 发明授权

US4555377A Thermoforming methods and apparatus 失效
标题翻译：热成型方法和装置
公开(公告)号：US4555377A
公开(公告)日：1985-11-26
申请号：US526077
申请日：1983-08-24
申请人： Robert C. Whiteside , Albert W. Arends , Roland Karklin
发明人： Robert C. Whiteside , Albert W. Arends , Roland Karklin
IPC分类号： B29C51/18 , B29C51/22 , B29C51/26 , B29C51/38 , B29C31/08
CPC分类号： B29C51/262 , B29C51/22
摘要： Thermoforming machines with a heating station and a downstream mold station have carrier clamp frames for gripping the edges of sheets of plastic at a load station and indexing them successively to a heating station and a mold station. The carrier frame members to which the plastic may be releasably clamped carry their own remotely operated clamps and are themselves expandable and contractible to a condition in which, prior to molding, they control the sag in the sheet formed during heating of the sheets to differential pressure forming temperature. The plastic sheet can be molded to only a portion of a product which functions as a mold member.
摘要翻译：具有加热站和下游模具站的热成型机具有用于在装载站处夹持塑料片边缘的载体夹持框架，并将它们依次分配到加热站和模具站。可以可释放地夹紧塑料的承载框架构件携带它们自己的远程操作的夹具，并且本身可膨胀和收缩到其中，在模制之前，它们控制在片材加热期间形成的片材中的下垂到差压成型温度。塑料片可以仅模制成用作模具构件的产品的一部分。

24. 发明授权

US4255382A Thermoforming machine with automatically mechanically operated web stripping element 失效
标题翻译：具有自动机械操作的卷筒纸剥离元件的热成型机
公开(公告)号：US4255382A
公开(公告)日：1981-03-10
申请号：US131880
申请日：1980-03-20
申请人： Albert W. Arends , Ronald E. Henke
发明人： Albert W. Arends , Ronald E. Henke
IPC分类号： B29C51/38 , B29C51/44 , B29C17/00 , B29C7/00
CPC分类号： B29C51/38 , B29C51/44
摘要： In differential pressure synthetic plastics thermoforming machinery, mold support assemblies mounted on a frame have relative movement between a mold open and a mold closed position. Power operated mechanism is provided for axially moving at least the female mold support assembly, and the female mold on the assembly which carries a stripper element mounted for relative movement with the mold. Mechanism is provided for automatically latching the stripper element to the frame as the female mold moves toward mold closed position, and abutments are provided on the mold support assembly and latch for automatically unlatching it only after the female mold has withdrawn a predetermined distance in its movement toward mold open position.
摘要翻译：在差压合成塑料热成型机械中，安装在框架上的模具支撑组件在模具打开和模具关闭位置之间具有相对运动。提供动力操作机构用于至少轴向移动阴模支撑组件，以及组件上的阴模，其携带安装成与模具相对移动的剥离元件。提供机构，用于当阴模移动到模具闭合位置时，将剥离器元件自动地锁定到框架上，并且在模具支撑组件和闩锁上提供抵靠件，仅在阴模移动之后才能自动解锁，朝模具开放位置。

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