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公开(公告)号：US3743457A
公开(公告)日：1973-07-03
申请号：US3743457D
申请日：1971-07-13
发明人： CINI A
CPC分类号： B29C47/065 , B29C47/0023 , B29C47/0033 , B29C47/0052 , B29C47/126 , B29C47/20 , B29C49/0021 , B29L2016/00 , B29L2024/003 , B29L2031/601
摘要： A control assembly for extruders and the like in which stock is fed to the extruder at a substantially constant rate, passing through the outlet end into die members to form the plastic product defined by the mold members. The extruder head is provided with an additional outlet port for forming a skim along the interior surface of the product being formed which requires a cut-off of stock flow at periodic intervals. Rotatable means are provided for selectively diverting a portion of the main stock flow to be introduced into an opening within an extrusion die member so as to be diverted therethrough and passed through a central opening which communicates with an associated outlet opening provided in the extruder die head to form the skim layer. The control means comprises an axially rotatable plug member which, in a first angular position, provides for cut-off of the central stock flow while in a second position permits the main stock flow to be diverted therethrough and to enter into the extruder central opening. The control means, which is preferably a piston-driven structure, is loosely linked to the plug means so as to prevent any jarring or misalignment of the plug member while at the same time providing rapid and positive on/off action of the control means.
摘要翻译： 用于挤出机等的控制组件，其中以基本恒定的速率将原料供给到挤出机，通过出口端进入模具构件以形成由模具构件限定的塑料制品。 挤出机头设置有另外的出口，用于沿着正在形成的产品的内表面形成脱模，其需要以周期性间隔切断库存流。 提供可旋转装置，用于选择性地将待引入的主要原料流的一部分转移到挤出模具构件内的开口中，以便被分流穿过其中并通过与设置在挤出机模头中的相关出口开口连通的中心开口 以形成脱脂层。 控制装置包括轴向可旋转的塞子构件，其在第一角度位置中提供中心储料流的切断，而在第二位置允许主储料流从其中转移并进入挤出机中心开口。 优选地是活塞驱动结构的控制装置松动地连接到插塞装置，以便防止插塞构件的任何振动或不对准，同时提供控制装置的快速和正的开/关动作。
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公开(公告)号：US3743456A
公开(公告)日：1973-07-03
申请号：US3743456D
申请日：1971-08-20
发明人： CINI A
CPC分类号： B29C47/065 , B29C47/0023 , B29C47/0033 , B29C47/0052 , B29C47/126 , B29C49/0021 , B29L2016/00 , B29L2023/186 , B29L2024/003 , B29L2031/601
摘要： An adjustable die head for extruders and the like advantageous for use in forming corrugated tubing with or without an interior skim layer. The die head is secured to an extruder apparatus and utilizes a removable stock control spacer for controlling the rate of flow of stock from an annular shaped outlet. Separate conduits are provided within the extruder die head which communicate with air outlets arranged at longitudinally spaced intervals along the die head. A conduit is also provided for communication with stock outlet openings which are utilized to form the skim layer within the corrugated tubing. Adjustable collars are provided at axially spaced intervals along the die head for regulating the flow of air and stock through the aforesaid outlet openings or alternatively to cut off selected ones of the aforesaid flows, if desired.
摘要翻译： 用于挤出机等的可调节模头有利于用于形成具有或不具有内部撇膜层的波纹管。 模头被固定到挤出机装置上，并利用可移除的库存控制间隔件来控制来自环形出口的料料的流动速率。 在挤出机模头内提供分开的导管，该模头与沿着模头以纵向隔开间隔布置的空气出口连通。 还提供用于与用于在波纹管内形成脱模层的坯料出口开口连通的导管。 沿着模头以轴向间隔的间隔设置可调节的套环，用于通过上述出口开口调节空气和原料的流动，或者如果需要的话，切断所选择的上述流。
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