Dosing device for proportioning substance e.g. solid substance, has dosing element that adjusts size of inlet opening to regulate a flow rate, and velocity of to be dosed substance

摘要

#CMT# #/CMT# The device (1) has an inlet opening (7), an outlet opening (9), a dispensing tube (5) and dosing element (11). The dosing element adjusts size of inlet opening to regulate a flow rate, and velocity of to be dosed substance. The dosing element is covered with film-like material (15). A movably mounted tension element (17) is secured to the film-like material. The tension element is provided to exert force on the film-like material so as to stretch the film-like material. #CMT# : #/CMT# An independent claim is included for method for proportioning substance. #CMT#USE : #/CMT# Dosing device for proportioning substance such as solid substance and liquid substance packaged in bags, of racking plant (claimed). #CMT#ADVANTAGE : #/CMT# Since the dosing element adjusts size of inlet opening to regulate flow rate, and velocity of substance, precise proportioning of substances is performed. Contamination free proportioning of the substances is obtained and the film material can be exchanged in favorable manner. The structure of the dosing device is simplified. The manufacturing cost of the dosing device is reduced. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a cross-sectional view of the dosing device. 1 : Dosing device 5 : Dispensing tube 7 : Inlet opening 9 : Outlet opening 11 : Dosing element 15 : Film-like material 17 : Movably mounted tension element.