| 摘要 |
#CMT# #/CMT# The device has a drive with a plunger coil, a solenoid plunger (4) and a fixed magnet return path yoke (2), where the coil, the plunger and the yoke are arranged with respect to each other such that magnetic field produced by the drive is closed and runs in the plunger and the yoke. A retaining borehole (22) and a cross section of the plunger accommodated by the borehole are differently formed such that a gap between the yoke and the plunger has non-constant breadth along a circumference of the plunger. The gap is formed such that the magnetic field acting radially on the plunger is cancelled. #CMT# : #/CMT# An independent claim is also included for a yarn cleaner comprising a measuring unit for measuring a parameter of a yarn. #CMT#USE : #/CMT# Device for cutting a longitudinally movable thread-shaped body i.e. yarn, in a yarn cleaner (all claimed) that monitors and ensures quality of the yarn in a spinning and/or winding machine in a textile industry. Can also be used for cutting roving and band. #CMT#ADVANTAGE : #/CMT# The gap between the magnet return path yoke and the solenoid plunger of the drive is formed such that the magnetic field acting radially on the solenoid plunger is cancelled, thus forming the fixed magnet return path yoke in an asymmetrical shape e.g. C-shape or U-shape without producing asymmetrical forces, and hence reducing space of the cutting device, and cutting the thread-shaped body in a fast and efficient manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a side perspective, partial sectional view of a cutting device. 2 : Magnet return path yoke 4 : Solenoid plunger 21 : Retaining part of front end of solenoid plunger 22 : Retaining borehole 41 : Front end of solenoid plunger. |
