Arrangement for applying substances to a web of material
OwnerJohannes Zimmerinventor
Life of this patent
Estimating the term…
Abstract
In an arrangement for the application of substances to a web of material (4), whereby a doctor blade (9, 13) is magnetically pressed against the material or a stencil (5) by means of a working magnet, and rests against a profiled ledge (6) in its operational position, it is proposed that in the profiled ledge (6) at least one restraining magnet (7) be provided, which keeps the doctor blade (9, 13) in rolling or sliding contact with the profiled ledge when the working magnet is switched off and raises it from the application surface (4, 5) or stencil.
Claims32
An arrangement for applying substances to a web of material comprising:
- a working magnet positioned below an application surface;
- a profiled ledge positioned over said application surface;
- a doctor device which is magnetically pressed against said application surface and when in an operating position rests against said profiled ledge;
- and
- at least one restraining magnet which is provided within said profiled ledge for keeping said doctor device in rolling or sliding contact with said profiled ledge and for lifting said restraining magnet off said application surface when said working magnet is switched off.
An arrangement according to claim 11 wherein said restraining magnet is a permanent magnet.
An arrangement according to claim 11 wherein said doctor device is a roller or a spreading bar.
An arrangement for applying substances to a web of material comprising:
- a working magnet positioned below an application surface;
- a profiled ledge having a front and a rear arm parallel to one another positioned over said application surface;
- a doctor device which is magnetically pressed against said application surface by said working magnet in a working position and sealingly pressed against one of said two arms so that escape is prevented of said substances to be applied from an area located in front of said doctor device to an area behind said doctor device when considered in a direction of travel;
- and
- a baffle ledge being vertically movable toward and away from said application surface, said baffle ledge bridging between said front and rear arms of said profiled ledge, positioned above said doctor device and movable sealingly against at least one of said arms.
An arrangement according to claim wherein said doctor device and said baffle ledge contact one another and each is also in pressing contact against said rear arm.
Dependencies are inferred from the claim text.