7results about "Doctors" patented technology

The invention relates to a crêping doctor and to a production method for a crêping doctor, which crêping doctor comprises a blade-shaped main body which is made of metal, in particular of steel or stainless steel, and which has a running surface that can be placed against the drying cylinder, and an end face which is at least partially covered with an anti-abrasion layer which provides the impact area for the fibrous web, the impact area having a plateau and a number of notches, characterized in that the surface roughness Ra1 of the plateau and the surface roughness Ra2 in the notches differ from one another.

A sensor signal is generated from a plurality of sensors located on a sensing roll, wherein each signal is generated when each sensor enters a nip between the sensing roll and a mating roll during each rotation of the sensing roll. An oscillating component such as a doctor blade or cleaning shower affects a web of material upstream from the nip. Each sensor generates a sensor signal upon entering the nip. A periodically occurring starting reference is generated that is associated with each oscillation of the oscillating component and the signal generated by each sensor is received so that a particular one of the sensors which generated the signal is determined and one of a plurality of tracking segments associated with the oscillating component is identified. The signal is stored to associate the sensor signal with the identified one tracking segment.

Crepe scraper and manufacturing process for a crepe scraper, with a blade-shaped base body made of metal, in particular steel or stainless steel, which has a running surface that can be applied to the drying cylinder, and an end face which is at least partially covered with a wear-resistant layer which provides the impact surface for the fiber web, wherein the impact surface has a plateau and a number of notches, characterized in that the surface roughness Ra1 of the plateau and the surface roughness Ra2 in the notches are different.

The invention relates to a creping blade (1) with a blade-like main part (8) made of metal, in particular steel or stainless steel, said main part having a working edge (2) which can be placed against a drying cylinder (3) and which adjoins an end face (4) with a counter-edge (5). Grooves (6) are worked into the end face (4) and are arranged at a distance to one another, and a wear protection layer (7) is provided on the wall of the main part (9) between the working edge (2) and the main part (8), wherein the grooves (6) are worked at least into the wear protection layer (7).

This utility model relates to the field of paper production technology, and in particular to a ceramic creping doctor blade assembly for paper production. It includes a base plate, a circular roller mounted on the upper left side of the base plate, a first outer shell fixedly connected to the center of the base plate, a second outer shell whose bottom is fixedly connected to another second outer shell, and a cylinder fixedly connected to the right side of the base plate. This ceramic creping doctor blade assembly for paper production, through the cooperation of a rotating mechanism and a grinding roller, allows the output shaft of a second motor to rotate, driving a worm gear to rotate. This allows for simultaneous grinding of the creping doctor blade and continuous paper processing, saving waiting time and improving work efficiency. Through the cooperation of a swinging mechanism and the creping doctor blade, the continuous rotation of a third motor causes the creping doctor blade to swing continuously, intermittently contacting the circular roller to achieve the purpose of creping. The swinging mechanism ensures indirect contact between the creping doctor blade and the paper, achieving the desired creping effect.

The utility model discloses a kind of paper scraping doctor blades, including the base body formed by several layers of glass fiber cloth weaving and adhesive, the blade body formed by several layers of carbon fiber cloth weaving and adhesive, the transition section of base body and blade body staggered connection, each layer of glass fiber cloth and carbon fiber woven cloth includes the edge line formed around, 45 ° warp and -45 ° weft that stagger with edge line each other. Advantage: by glass fiber cloth and carbon fiber woven cloth are woven using 45 ° warp 200 and -45 ° weft 300 that stagger each other, improve the strength of woven line at blade body 2 edge horizontal, also facilitate to realize the stagger of transition section 3 carbon fiber woven line and glass fiber cloth, to the strength of entire a kind of paper scraping doctor blade. And base body 1 using glass fiber cloth and blade body 2 of carbon fiber woven cloth compound form doctor blade, can utilize the doctor blade made of carbon fiber material wear resistance, high temperature resistance, long service life reduce cost, can also utilize glass fiber cloth to further reduce cost.