니들 밸브

• Main Authors: HERRE FRANK, BUCK THOMAS, BAUMANN MICHAEL, MELCHER RAINER, MICHELFELDER MANFRED
• Format: Patent
• Language: Korean
• Published: 09.03.2018
• Subjects: ACTUATING-FLOATS; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; NOZZLES; PERFORMING OPERATIONS; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TAPS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VALVES; WEAPONS

본 발명은 도장 시스템의 코팅제(H, SL)의 유체 흐름을 제어하기 위한 니들 밸브에 관한 것으로, 두 가지 코팅제 성분, 즉 마스터 배치(SL) 및 경화제 (H)로 이루어진 2 성분 페인트로서, 밸브 시트(7) 및 니들 스템 및 밸브 헤드가 구비된 변위 가능한 밸브 니들(7)을 포함하며, 밸브 헤드(5)는 밸브 니들(7)의 폐쇄 위치에서는 밸브 시트(7)를 폐쇄하고, 개방 위치에서는 밸브 시트(7)를 개방시킨다. 본 발명은 밸브 니들(7)을 니들 헤드(5) 전의 상류측에서 환형 및 밀봉 방식으로 둘러싸는 가요성 멤브레인(18)을 제공한다. The disclosure relates to a needle valve for controlling a fluid flow of a coating agent (H, SL) in a painting system, particularly for controlling a fluid flow of a two-component mixture consisting of two coating agent components (H, SL), particularly a two-component paint made from a master batch (SL) and a curing agent (H), comprising a valve seat (7) and a displaceable valve needle (7) with a needle stem and a valve head (5), wherein the valve head (5) closes the valve seat (7) in a closed position of the valve needle (7), while the valve head (5) opens the valve seat (7) in an opened position of the valve needle (7). The disclosure provides a flexible membrane (18) which surrounds the valve needle (7) annularly and in a sealing manner upstream before the needle head (5).