摘要:
An apparatus for manufacturing an insulating pipe section includes a rotatable longitudinal mandrel configured for receiving and winding uncured mineral wool around the mandrel to manufacture an insulating pipe section, a belt, preferably an endless belt, at least two longitudinal jaws engaging the belt, wherein the jaws are configured for surrounding the mandrel with the belt, and a mandrel controlling element configured for actively controlling a transverse movement of the mandrel.
摘要:
The invention relates to a method for winding up a web of material (4) by means of an apparatus (1) including at least: one winding-up space (2) for accommodating an at least partially wound up web of material (wound roll (3)) having a winding center (Z); means for conveying and/or manipulating the web of material prior to and/or during winding-up; including the following steps: a) operating the apparatus (1); b) monitoring the web of material (4) and/or the resulting wound roll (3) by means of at least one image capturing device (30) for obtaining at least one current state (actual state) of the web of material (4) and/or of the wound roll (3); c) comparing at least one actual state to at least one target state and corresponding to the actual state, and determining at least one deviation of the actual state from the corresponding target state; d) if the deviation exceeds/falls below at least one predetermined limit value, performing a correction of at least one operating parameter of the apparatus (1) which operating parameter is at least a contributing factor for the deviation.
摘要:
The invention relates to a method of threading a fibrous web (W) onto a circular cylindrical object (3, 19) in a reel-up (2) for a paper-making machine (1). The reel-up (2) comprises an endless flexible belt (6) mounted for rotation along a predetermined path of travel. The endless flexible belt (6) is positioned adjacent the circular cylindrical object (3, 19) during winding and the fibrous web (W) residing on the outside surface (8) to engage the circular cylindrical object (3, 19) during winding such that the endless flexible belt (6) is deflected from the predetermined path of travel. When a fibrous web (W) is to be threaded onto the circular cylindrical object (3, 19), the circular cylindrical object (3, 19) is placed at a distance from the endless flexible belt (6) such that the endless flexible belt (6) is no longer deflected from the its path of travel. A narrow tail (17) is cut from a fibrous web (W) that is to be threaded and the narrow tail (17) is advanced on the outside surface (8) of the endless flexible belt (6). The circular cylindrical object (3, 19) is moved towards the endless flexible belt (6) such that the circular cylindrical object (3, 19) comes into contact with the narrow tail (17) and an adhesive substance is applied to the to the narrow tail (17) such that the narrow tail (17) will adhere to the circular cylindrical object and starts to be wound on the circular cylindrical object (3, 19), whereafter the narrow tail (17) is widened. The invention also relates to a reel-up (2) capable of carrying out the method.
摘要:
A machine for quickly and efficiently rolling carpet runners or mats after laundering, for storage, transport and reuse may include a set of belts for generally horizontal travel and an interacting set of belts for generally vertical travel and guide means for directing the leading edge of a carpet runner from engagement with the horizontal belts to engagement with the vertical belts. An assembly including a plurality of arcuate fingers cooperates with the belts to guide the leading edge of a carpet runner into the beginning of a roll and to assist in formation of a tight compact roll of carpet. The machine may include means for driving the belts, means for retracting the finger assembly from a completed rolled carpet runner, and controls for the means. The machine may include a safety apparatus including a light curtain.
摘要:
A winding device for formation of fibrous rolls includes: a first conveyor and a second conveyor; a movable compression roller which delimits a winding area with guide surfaces of the conveyors; a movable pre-compression conveyor including an upstream roller, a downstream assembly with a curved downstream end, and a belt wound around the upstream roller and the downstream assembly. The belt is held under tension against the downstream assembly and forms, facing the guide surface of the first conveyor, a circulating pre-compression surface for pre-compression of a fibrous mat to be wound, the pre-compression surface being a pre-compression element closest to the winding area.
摘要:
A mat rolling machine for rolling a mat having a leading edge and a trailing edge may include a frame, at least one first drive belt, a plurality of second drive belts, a plurality of third drive belts, and a plurality of fourth drive belts. At least one of the belts may be coupled together at an oblique angle relative to the direction of travel of the belt. The mat rolling machine may include a plurality of primary fingers and a plurality of secondary fingers having a smaller radius of curvature on a lower face than the plurality of primary fingers. The mat rolling machine may include at least one support member for guiding a mat along a path through the mat rolling machine, and at least one pusher for discharging a rolled mat from the rear of the mat rolling machine.
摘要:
A method for rewinding a web material is disclosed. The method comprises the steps of: a) providing a conveyor belt having opposed first and second surfaces; b) providing a pressure assist device proximate to the second surface of the conveyor belt; c) disposing the web material on the first surface of the conveyor belt; d) providing at least one winding spindle having a speed profile proximate to the web material disposed upon the first surface of the conveyor belt; e) adjusting a position of at least one of the conveyor belt and the pressure assist device relative to the winding spindle to provide a compressive force to the surface of the winding spindle by the conveyor belt; f) adjusting a speed of the at least one winding spindle according to the speed profile; and, g) transferring the web material to the at least one winding spindle from the conveyor belt.
摘要:
A method and apparatus for making and winding bags is disclosed. The film approaches the infeed nip on the surface of a roller and on a film guide recessed in the roller for an arc of at least 10, 45, 60 or 90 degrees. The film is preferably guided to one of two alternative film paths. An over speed nip may be provided between the infeed nip and the alternative film paths to separate rolls or to separate all bags. An overlapper can be included. Rods that travel in an elliptical orbit, and/or air nozzles can be part of the overlapper. Air nozzles or a rotating brush can direct the film to the appropriate alternative path. Banders can be used, and can include a conveyor for providing tape to the spindle and two sources of air.
摘要:
The structure of a fibrous web roll is controlled by winding a fibrous web (W) into a fibrous web roll (15) through a winding nip (N) between the fibrous web roll (15) being formed and a winding drum (13). The structure of the fibrous web roll (15) being formed is controlled by regulating the direction of passing the web to a windup, thereby regulating the wrap angle.
摘要:
A reeling device including a reel drum supported on reeling rails and around which a paper web is reeled into a reel through a reeling nip defined between a set of belt rolls and the reel. The set of belt rolls extends in the cross direction substantially across the web width. A method for reeling or unwinding a paper web in which the paper web is reeled around a reel drum supported on reeling rails into a reel or unwound from the reel by means of a reeling nip. The paper web is reeled through the reeling nip which is formed between at least one set of belt rolls extending in the cross direction substantially across the web width and the reel that is being formed/unwound.