摘要:
In a reel change in the reeling process of a fiber material web, the fiber material web (W) running to a reel that is becoming full is changed to run around a new reeling core (2) brought to a reel change position in such a way that the web is made to adhere onto the surface of the new reeling core (2). The web (W) is made to adhere onto the surface of the reeling core (2) by means of a change in the properties of the material on the surface of the reeling core (2). The material is a combination of an adhesive area (6a) on the surface of the reeling core and a protective layer (6b) on top of the adhesive area, and the properties of the material are changed by removing the protective layer (6b).
摘要:
A movable support apparatus (10), supported on a floor and movable between at least two target stations, for receiving, moving and handing over rolls, winding shafts (1) and/or machine reels (4) intended for the handling of a fiber web, the movable support apparatus (10) comprising support members (12) for holding up the load being handled (1, 4) at both its support ends (2). The movable support apparatus (10) is adapted to be supported on a floor with at least one pressure medium cushion element (40). A handling system comprises the movable support apparatus (10). A fiber web manufacturing line. A method for handling rolls, winding shafts (1) and/or machine reels (4) with the movable support apparatus (10). The method comprises using the movable support apparatus as a movable winding stand for the winding of a fiber web (W).
摘要:
In a reel change in the reeling process of a fiber material web, the fiber material web (W) running to a reel that is becoming full is changed to run around a new reeling core (2) brought to a reel change position in such a way that the web is made to adhere onto the surface of the new reeling core (2). The web (W) is made to adhere onto the surface of the reeling core (2) by means of a change in the properties of the material on the surface of the reeling core (2). The material is a combination of an adhesive area (6a) on the surface of the reeling core and a protective layer (6b) on top of the adhesive area, and the properties of the material are changed by removing the protective layer (6b).
摘要:
The invention relates to a method in continuous unwinding of a paper web, in which a paper reel (3) wound on a reeling core (2) or the like is unwound by rotating the same to guide the paper web (1) to a further processing stage. The method is characterized in that the shape of the outer surface of the unwound paper reel (3) is measured with the aim of detecting the defects possibly occurring in the paper reel (3). the invention also relates to an apparatus for applying the method.
摘要:
The invention relates to a method and a roll for measuring a web tension profile by a spiral inclined pressure sensor film, e.g., an EMFi pressure sensor film, which contacts the web at an inclination. The film has been oriented in such a way that its measurement region in the machine direction is equally long as or shorter than the coverage area of the web when using the roll for measuring a cross-sectional tension profile.
摘要:
The invention concerns a method and system in the maintenance of machines, processes, automation systems and equipment relating to papermaking. The machine relating to papermaking is located at a production plant (100), which is equipped with a plant data system (155), and wherein a teleservice connection (189) based on a data communication link is arranged between the production plant (100) and a teleservice center (200). The condition, state and/or performance of the machine units and/or processes and/or automation systems of the production line at the production plant are monitored by monitoring system's, such as condition monitoring systems (130) and/or performance measuring systems (140) and/or quality assessment systems (150) and diagnostic units (110), in order to recognise emergency situations. In the method according to the invention an automatic service process is started in an emergency situation based on the signals given by the monitoring systems. The system according to the invention comprises means for bringing about the automatic service process.
摘要:
A method in a reeler and a reeler, wherein a reeling nip (N1) is formed by a reeling core (5) or a growing machine reel (R) and at least one loop of an endless supporting member (1), which is substantially continuous in the axial direction of the reeling core (5). In the method variables proportional to the tension of the endless supporting member (1) are measured and the tension profile of the endless supporting member (1) is determined or the cross-directional linear load profile of the reeling nip (N1) is measured.
摘要:
A method and an apparatus for controlling the cross-directional nip profile of a reeling nip in a reeler, in which the reeling nip (N1) is arranged by means of a reeling core or a growing machine reel (R) and at least one loop of an endless supporting member (1) continuous in the direction of the axis of the reeling core (5). To control the cross-directional nip profile of the reeling nip (N1), variables proportional to the tension of the supporting member are measured, cross-directional tension profile of the supporting member (1) is determined on the basis of said variables, and further, a cross-directional nip profile of the reeling nip is determined, said nip profile being controlled by adjusting the determined cross-directional tension profile of the supporting member (1).
摘要:
The invention relates to a method and an arrangement for measuring the nip pressure and/or pressure profile in the nip of a printing unit of a printing press. A force and/or pressure sensor, such as a pressure sensitive film, for example, an EMFi film sensor, is installed on the counter roller, rubber roller or roller forming the nip of a printing unit which participates in the printing unit in transferring printing ink onto the paper, plastic or other thin sheet-like material surface, wherein the pressure sensitive film is adapted to produce, in connection with a deformation of the force and/or pressure sensor, an electrical signal corresponding to the magnitude of the deformation. The rollers forming the nip are caused to rotate in relation to one another such that the nip pressure of the nip causes a deformation of the force and/or pressure sensor producing an electrical signal corresponding to the deformation of the nip. The nip pressure and/or pressure profile of the nip is calculated by using the electrical signal produced by the deformation of the force and/or pressure sensor.