Abstract: Calender and process for operating calender depending upon a desired surface quality, in which calender includes a plurality of nips located between end nips formed by replaceable rolls and end rolls. Process includes selectively guiding a web though several nips of calender and at least one end nip of calender, and when the web is selectively guided through the at least one end nip, selectively replacing the replaceable roll with one of a hard and a soft roll to form the at least one end nip with a hard roll and a soft roll or with two soft rolls. The replaceable roll being connectable to a temperature control device operated with a tempering capacity that depends on the type of the replaced roll. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: Roll arrangement that includes a deflection controlled roll and a counter roll. The counter roll and the deflection controlled roll are arranged to form at least one nip. The deflection controlled roll includes a rotating roll jacket, a carrier axially passing through the roll jacket, and support elements arranged between the roll jacket and the carrier. A plurality of the support elements, located at a nip side of the deflection controlled roll, are structured and controllable so that at least some of the plurality of support elements assume a position retracted from the roll jacket during a start-up operation of the deflection controlled roll. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: Calender and process for operating calender depending upon a desired surface quality, in which calender includes a plurality of nips located between end nips formed by replaceable rolls and end rolls. Process includes selectively guiding a web though several nips of calender and at least one end nip of calender, and when the web is selectively guided through the at least one end nip, selectively replacing the replaceable roll with one of a hard and a soft roll to form the at least one end nip with a hard roll and a soft roll or with two soft rolls. The replaceable roll being connectable to a temperature control device operated with a tempering capacity that depends on the type of the replaced roll. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: Roll arrangement that includes a deflection controlled roll and a counter roll. The counter roll and the deflection controlled roll are arranged to form at least one nip. The deflection controlled roll includes a rotating roll jacket, a carrier axially passing through the roll jacket, and support elements arranged between the roll jacket and the carrier. A plurality of the support elements, located at a nip side of the deflection controlled roll, are structured and controllable so that at least some of the plurality of support elements assume a position retracted from the roll jacket during a start-up operation of the deflection controlled roll. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: Calender that includes a stand, an upper roll, a lower roll, and at least two center rolls arranged between the upper and the lower rolls. The calender also includes at least two cylinders, where the at least two center rolls are supported on the stand by the at least two cylinders. Each of the at least two cylinders include a discharge path that is controlled over more than ¾ of a piston stroke for lowering the at least two center rolls.

Abstract: The present invention relates to a calendar for treating a material web. In an exemplary embodiment, first and second roll stacks have first and second deflection adjustment rolls on an end thereof, respectively. Each of the first and second deflection adjustment rolls has a sleeve lift, and a sleeve supported by a deflection adjustment device on a fixed bracket. The first and second deflection adjustment rolls are adjacent to each other to define an additional nip therebetween that can be at least partially closed by the sleeve lift. An effective direction of the deflection adjustment device of the first deflection adjustment roll alternatively points toward the first roll stack and the second deflection adjustment roll, and an effective direction of the deflection adjustment device of the second deflection adjustment roll alternatively points toward the second roll stack and the first deflection adjustment roll.

Abstract: Calender for a fibrous material web and method of operating a calender for a fibrous material web. The calender includes a first roll stack and a second roll stack each arranged in a common plane on a stanchion, each roll stack having a top deflection adjustment roll having a sleeve, a bottom deflection adjustment roll having a sleeve, and three intermediate rolls disposed between the top deflection adjustment roll and the bottom deflection adjustment roll, the uppermost the intermediate roll being fixedly mounted to the stanchion. The calender further has a deflection adjustment device having a sleeve lift supporting each sleeve, at least one deflection adjustment device facing the first roll stack in a first operative position and facing the second roll stack in a second operative position. A nonrotatable bracket supporting each deflection adjustment device and fixedly mounted to the stanchion is also provided.

Abstract: Calender that includes a stand, an upper roll, a lower roll, and at least two center rolls arranged between the upper and the lower rolls. The calender also includes at least two cylinders, where the at least two center rolls are supported on the stand by the at least two cylinders. Each of the at least two cylinders include a discharge path that is controlled over more than ¾ of a piston stroke for lowering the at least two center rolls.

Abstract: A calender for manufacturing a material web. A frame is supported at the top and bottom. At least five rolls are mounted on the frame such that axes of the rolls lie in a substantially common plane extending substantially parallel to the frame. The common plane extends at an acute angle relative to a horizontal plane.

Abstract: Calender having a frame having a roll stack therein and a lower deflection control roll as the lowermost roll of the roll stack. The lower deflection roll has a sleeve supported on a bracket having opposed ends. The lower deflection control roll further has a deflection control device configured to secure the bracket against rotation. The deflection control device is further configured to operate in the direction of a center place of the roll stack. The calender further has a pair of bearing blocks, each bearing block being configured to hold a respective end of the bracket. Each bearing block is adjustable by a respective loading device. The calender further includes a pair of pivoted arms each having a proximal end and a distal end, the proximal end swivelly connected to the frame, and the distal end connected to a respective bearing block.

Abstract: Slitting device and process for positioning a slitting device to slit a material web into partial webs. The slitting device includes a knife arrangement that is adapted for movement transversely to a web run direction of the material web and that includes a first knife attachment device positioned on one side of the material web and a second knife attachment device positioned on an other side of the material web. The first knife attachment device includes a drive with a positioning unit. The slitting device also includes a circuitless signal transmission path that is located between the first knife attachment device and the second knife attachment device and the second knife attachment device includes a follow-up device. The process includes contactlessly coupling the first and second knife attachment devices, and transversely moving the first knife attachment device across a width of the material web.

Abstract: Roll winding device and process for use, e.g., in a reel slitting device. The roll winding device includes a roll carrier device, a pneumatic pressure release device including a plurality of blow boxes having top sides with escape nozzles, and a rocker arm on which the blow boxes are mounted in articulated pairs. The blow boxes are swivelably adjustable on tilting axes that run parallel to a roll axis. The process includes positioning the blow boxes beneath a peripheral surface of a roll being wound on the winding machine and ejecting air through the escape nozzles in the blow boxes directed toward the peripheral surface to orient the top surface of the blow box substantially parallel to a tangent of the peripheral surface and to position the top surfaces of the blow boxes a substantially same distance from the peripheral surface. In this manner, the ejected air forms an air cushion under the roll.

Abstract: Reel cutter and method for a substantially continuously winding-on of partial web rolls. The reel cutter may include a cutting section adapted for cutting a material web into a plurality of partial webs and a winding section adapted for winding the plurality of partial webs onto partial web rolls. The partial web rolls may be arranged such that neighboring partial web rolls are located in winding position groups positionally offset from one another. The winding section may include at least one additional and no more than twice the number of winding position groups necessary for winding-on of the partial web rolls.

Abstract: A reel slitter includes a slitting station for slitting a material web into partial webs and a winding station to wind the partial webs into partial web rolls. A transporter conveys at least one partial web from the slitting station. The transporter is disposed between the slitting station and the winding station. In order to provide for the winding of the partial webs across the entire width of the partial webs, the transporter has a width which is narrower than the material web. The transporter is also movable transversely to the running direction of the partial webs.

Abstract: In a calender (1) one or several rollers (2) can be positioned by being raised or lowered jointly with the roller stack disposed therebelow; and vertically displaceable sliding members (3) connected with the roller journals are jointly driven, and are blocked when the roller to be positioned (2) is adjacent the desired working position by way of a separate fixation device (6) supported on the frame (4). In a development of the method the rollers are brought in a desired working position after blocking of the fixation device.

Abstract: Support components or supports for supporting calender rolls for treating web-shaped materials comprise walls which surround a roll stand of the calender and are slidably arranged at guideways provided at the roll stand. Each support component supports an associated calender roll having a predetermined diameter, and a predetermined support length of each support component in a predetermined direction of the guideways is greater than the predetermined diameter of the associated calender roll. The walls of adjacent support components define a predetermined numbr of pairs of mutually facing edges. At least one pair of mutually facing edges between two adjacent support components contains projections and complementary shaped recesses. When such two adjacent support components are slidably displaced toward one another, the projections extend into the correspondingly structured complementary shaped recesses.

Abstract: Support of a nip relieving device to compensate for overhanging weights at an elevationally displaceable bearing part of an intermediate roll of the calender is effected relative to the stand of the calender by an elevationally displaceable support member. This support member is displaceable by a threaded spindle which is rotatable with a motor and gearing and supported by the stand, to which threaded spindle the support member is individually engageable. The support member is thus individually displaceable to the related bearing part, according to the elevational position thereof, into a desired relative position. According to a preferred embodiment, the components of the nip relieving device are arranged in a bearing sleeve enclosing the threaded spindle and the support member is formed by a nut which is elevationally displaceable by rotation of the threaded spindle.