Valmet Aktiebolag

Other

Metso Paper Inc.

Valmet Technologies, Inc.

Per-Olof Malmqvist

Tomas Carlsson

Massimiliano Candutti

Ingvar B Klerelid

Teppo Kojo

Petri Enwald

Topi Tynkkynen

Tatu Markus Kristian Pitkänen

Lars Gustafsson

Lars-Erik Oennerloev

Mika-Petteri Lannes

Claes Thelander

Topi Jussi Tynkkynen

Tatu Markus Kristian Pitkanen

Ingvar Klerelid

Lars-Erik ÖNNERLÖV

The invention relates to a method of threading a fibrous web (W) onto a circular cylindrical object () in a reel-up () for a paper-making machine (). The reel-up () comprises an endless flexible belt () mounted for rotation along a predetermined path of travel. The endless flexible belt () is positioned adjacent the circular cylindrical object () during winding and the fibrous web (W) residing on the outside surface () to engage the circular cylindrical object () during winding such that the endless flexible belt () is deflected from the predetermined path of travel. When a fibrous web (W) is to be threaded onto the circular cylindrical object (), the circular cylindrical object () is placed at a distance from the endless flexible belt () such that the endless flexible belt () is no longer deflected from the its path of travel. A narrow tail () is cut from a fibrous web (W) that is to be threaded and the narrow tail () is advanced on the outside surface () of the endless flexible belt (). The circular cylindrical object () is moved towards the endless flexible belt () such that the circular cylindrical object () comes into contact with the narrow tail () and an adhesive substance is applied to the to the narrow tail () such that the narrow tail () will adhere to the circular cylindrical object and starts to be wound on the circular cylindrical object (), whereafter the narrow tail () is widened. The invention also relates to a reel-up () capable of carrying out the method.

Method of threading a fibrous web and a reel-up for carrying out the method

The invention relates to an apparatus for winding a paper web. It comprises a rotatably mounted reel spool () onto which paper can be wound and an endless flexible belt () which is permeable to air and supported by support rolls (). The flexible belt is positioned adjacent the reel spool () to engage the web against the reel spool during winding such that the endless flexible belt is deflected from the path of travel. The flexible belt has a web-contacting side (). An actuator () is arranged to position the reel spool () and the flexible belt relative to each other to vary the amount of deflection. The apparatus further comprises a cleaning device () with at least one nozzle for blowing air against the web-contacting side of the flexible belt at a point where the flexible belt is not in contact with the paper. The invention also relates to a method of removing dust particles.

Apparatus for winding a web of paper material and a method of removing dust

The invention relates to a reel-upfor receiving and winding into a rolla paper web W that arrives from a drying cylinderin a paper making machine and which drying cylinderis located upstream of the reel-upand which paper web W follows a path of travel from the drying cylinderto the reel-up. The reel-upcomprises a rotatably mounted reel spoolonto which a paper web W can be wound to create a paper rollof increasing diameter and an endless flexible beltmounted for rotation along a predetermined path of travel such that the flexible beltforms a loop. The flexible beltis positioned adjacent to the reel spoolto engage the paper web W against the reel spoolduring winding. The reel-upis arranged to receive the paper web W at the end of a path of travel of the paper web W which ends in a point of contact P with the flexible beltwhere the paper web W meets the flexible beltsuch that a wedge-shaped space WS is formed between the flexible beltand the paper web W. From the point of contact P, the paper web W will be carried by the flexible beltto the reel-spool. According to the invention, the reel-upfurther comprises an air deflectorfor diverting or evacuating air away from the wedge-shaped space WS formed between the flexible beltand the paper web W. The invention also relates to a method of reeling a paper web.

Reel-up and a method of reeling a paper web in the dry end of a paper machine

The invention relates to a reel-up () for receiving and winding into a roll () a paper web (W) that arrives from a drying cylinder () in a paper making machine. The reel-up () comprises a rotatably mounted reel spool () onto which a paper web (W) can be wound to create a paper roll () of increasing diameter and an endless flexible belt () mounted for rotation along a predetermined path of travel such that the flexible belt () forms a loop. The flexible belt () is positioned adjacent to the reel spool () to engage the paper web (W) against the reel spool () during winding such that the flexible belt () is deflected from the predetermined path of travel when the paper roll () starts to build up on the reel spool (). The flexible belt () is air permeable and at least one blow box () is arranged inside the loop of the flexible belt () such that an underpressure can be generated that draws the paper web (W) against the flexible belt (). The at least one blow box () has at least one nozzle () through which air is blown out of the at least one blow box () and the nozzle is shaped as a slot. According to the invention, the at least one blow () box faces the flexible belt () with an outer surface () which is convexly curved such that dust which has been sucked through the flexible belt () and lands on the at least one blow box () is helped by gravity to glide along the outer surface () of the blow box () and fall of the blow box ().

Reel-up for receiving and winding into a roll a paper web that arrives from a drying cylinder in a paper making machine and a paper making machine using a reel-up

The invention relates to a reel-up () for receiving and winding into a roll () a paper web (W) that arrives from a drying cylinder () in a paper making machine (). The reel-up () comprises a rotatably mounted reel spool () onto which a paper web (W) can be wound to create a paper roll () of increasing diameter and an endless flexible belt () mounted for rotation along a predetermined path of travel such that the flexible belt () forms a loop. The flexible belt () is positioned adjacent to the reel spool () to engage the paper web (W) against the reel spool () during winding such that the flexible belt () is deflected from the predetermined path of travel. According to the invention, the endless flexible belt () comprises electrically conductive material such that static electricity in the flexible belt () is dissipated away from the flexible belt (). The invention also relates to a paper making machine in which the inventive reel-up is used and to a method of winding a paper web.

Reel-up for winding a paper web into a roll and a method of winding a paper web to form a roll

The invention relates to a reel-up () for receiving and winding into a roll () a paper web (W) that arrives from a drying cylinder in a paper making machine and for starting a new roll () from a tail () formed by cutting the paper web (W). The reel-up () comprises a rotatably mounted reel spool () onto which a paper web (W) can be wound to create a paper roll () of increasing diameter; and an endless flexible belt () mounted for rotation along a predetermined path of travel such that the flexible belt () forms a loop. The flexible belt () is positioned adjacent to the reel spool () to engage the paper web (W) against the reel spool () during winding such that the flexible belt () is deflected from the predetermined path of travel by an amount relative to the amount of paper material wound on the reel spool (). A pair of water nozzles () is arranged such that each water nozzle () can direct a web-cutting water jet stream against the paper web (W) to cut the paper web (W) at a point before the paper web (W) reaches the flexible belt (). Each water nozzle () is arranged to be movable in a direction which is transverse to the direction of movement of the paper web (W) and a glue nozzle () is arranged to direct a stream of glue against the reel spool () or against the tail (). The invention also relates to a corresponding method for operating the reel-up.

Reel-up and a method for winding into a roll a paper web and for starting a new roll

The present invention relates to a reeling apparatus () for fiber web by which fiber web may be wound to successive reels (). The reeling apparatus has cutting devices () for cutting the web during a reel change, the cutting device being provided with at least one cutting head () disposed movable in a direction essentially transverse to the web direction to cut the web. A contactless web supporting arrangement () is been provided in operational connection with the cutting device to maintain the running of the web stable in a controlled manner during the cutting.

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Karlstad, Sweden

Per-Olof Malmqvist