公开(公告)号：US11794394B2

公开(公告)日：2023-10-24

申请号：US16915770

申请日：2020-06-29

Applicant: AFROS S.P.A

Inventor： Marco Volpato ,  Maurizio Corti

IPC: B29C45/58 ,  B29C67/24 ,  B01F23/45 ,  B01F23/47 ,  B01F23/40 ,  B01F25/50 ,  B01F25/00 ,  B01F35/22 ,  B01F35/12 ,  B01F35/213 ,  B01F35/21 ,  B01F35/214 ,  B01F35/221 ,  B01F101/00

CPC classification number: B29C45/581 ,  B01F23/405 ,  B01F23/45 ,  B01F23/47 ,  B01F25/1051 ,  B01F25/50 ,  B01F35/123 ,  B01F35/213 ,  B01F35/2111 ,  B01F35/2113 ,  B01F35/2115 ,  B01F35/2142 ,  B01F35/22 ,  B01F35/2213 ,  B01F35/2215 ,  B29C67/246 ,  B01F2101/2805

Abstract: The invention relates to a high-pressure mixing, dosing and recirculation head for injection or casting reaction molding, said high-pressure mixing, dosing and recirculation head comprising a head body, a mixing chamber, obtained in the head body wherein a valve element or mixing valve slides and in fluid communication with a supply duct, and a self-cleaning element comprising a scraping portion, said self-cleaning element being structured to slide in said supply duct, as well as comprising an apparatus for controlling and commanding mixing, supply and recirculation comprising a plurality of sensors and transducers mounted on board of the head body and of the components parts of the head connected thereto to detect and transform representative physical quantities of at least one operational status of said high-pressure mixing, dosing and recirculation head into electrical signals and an electronic control and storing system adapted to synchronously control and scan said sensors and transducers and adapted to receive and process said electrical signals indicative of said at least one operational status, at the beginning and during the operational phases of said high-pressure mixing, dosing and recirculation head to compare them with each other and with electrical signals representative of a predetermined reference operational status. The invention also relates to a high-pressure mixing, dosing and recirculation method for injection or casting reaction molding.

公开(公告)号：US20150174540A1

公开(公告)日：2015-06-25

申请号：US14580573

申请日：2014-12-23

Applicant: AFROS S.P.A.

Inventor： Marco Volpato ,  Maurizio Corti

IPC: B01F13/06 ,  B01F15/02

CPC classification number: B01F13/06 ,  B01F15/0254 ,  B01F15/0279 ,  B01F2215/0049 ,  B29B7/7668 ,  B29B7/7694 ,  B29B7/805 ,  B29C67/246 ,  B29C67/247

Abstract: A method and high-pressure mixing device for co-injection of polymeric reactive components, in particular for polyurethane and epoxy mixtures. The polymeric components are supplied in a common pressure chamber where they flow at a same pressure and in an unmixed state into a forwardly converging fore portion of the pressure chamber, and through a settable co-injection orifice to be co-injected, in the unmixed state, into a mixing chamber transversely oriented to the pressure chamber. The settable co-injection orifice consists in an elongated restriction; a first cleaning member and a second cleaning member are sequentially reciprocable in the pressure chamber to eject the remaining unmixed polymeric components, respectively in the mixing chamber to eject the remaining mixture, and stop means are provided to set an open section of the elongated restriction.

Abstract translation: 用于共注射聚合物反应性组分的方法和高压混合装置，特别是用于聚氨酯和环氧混合物。 聚合物组分在公共压力室中供应，其中它们以相同的压力和未混合的状态流动到压力室的向前收敛的前部，并通过可共注入的共注射孔共同注入，在未混合 状态，进入横向定向到压力室的混合室中。 可设定的共注入孔由细长的限制构成; 第一清洁构件和第二清洁构件在压力室中顺序地往复运动，以将剩余的未混合的聚合物组分分别喷射到混合室中以排出剩余的混合物，并且设置停止装置以设定细长限制的开口部分。