Abstract:
Method and apparatus for controlling a reel-up, in which reel-up the paper web or the like (W) is reeled around a reel spool (5) via a reeling nip (N) to form a reel (R). The reeling nip (N) is formed by means of the loop of an endless supporting member (1) passed via two guiding rolls (2, 3) and a reel spool (5) and a reel (R) formed thereon. The web (W) reeled on the reel spool (5) and on the reel (R) formed thereon is guided in the axial direction of the reel spool (5) by turning the reel spool (5) or at least one of the guiding rolls (2, 3).
Abstract:
The invention relates to a core locking device comprising members (25) for locking the device (17) to a winding core of a roll to be wound on a two-drum winder, advantageously to a core, which device (17) is placed on a slide arranged in connection with the two-drum winder, which locking device (17) moves, as winding progresses, with the centre of the roll being formed along the slide. The device (17) comprises an actuator (20) to produce a counterforce for the force caused by the mass of the core locking device (17) in the changed position of the core locking device (17).
Abstract:
A belt roll-up machine (20) which includes at least two endless belts (26, 27). The endless belts have portions that overlap one another. The overlapping portions of the belts form a loop (30). A compressible strip of insulation material may be rolled in the loop.
Abstract:
The invention relates to a method in reeling up, wherein paper reels are continuously formed on reeling cores from a continuous paper web. According to the invention, the paper reel (PR) is brought to the formation of the paper reel by utilizing a closed supporting belt rotation (1), on the outer surface of the supporting belt rotation (1). Further, the paper web (PR) is transferred from the outer surface of the supporting belt rotation (1) directly on the paper reel (R) formed on a reeling core. Thus a first nip contact (SN) is maintained substantially at that point of the supporting belt rotation (1) in which the paper web (PR) is transferred to the paper reel (R) that is being formed, and in addition to the first nip contact (SN), the paper reel (R) that is being formed is affected with at least one, second nip contact (PN). The invention also relates to a reel-up applying the method.
Abstract:
A reel-up/winder, comprising one or several members (11, 12) that support the reel/roll (10) to be formed onto a reel/roll spool (16), of which members at least one support member is a belt support member (12), which consists of a belt loop (15) which is supported by means of at least two rolls (13, 14), whose axes are substantially parallel to the axis of the reel/roll spool (16). Into the outer face of the mantle of at least one roll (13, 14) in said belt support member (12), a substantially spiral-shaped groove (204) has been formed, which extends across the axial width (1) of the roll mantle (202).
Abstract:
This invention concerns a winding device (10) for producing a roll of batting (12). For this purpose, the batting (14) is wound on a rotating core (H) driven by an endless belt (18). The core can be positioned in a loop (20) of the belt (18) formed between two pulleys (R1, R2) which can be stretched by means of a tension-setting device (22). As the size of the roll (12) increases, the size of the loop increases. At least one (R1) of the deviation pulleys (R1, R2) can be placed between a working position designed to form the loop (20) and an ejection position, into which the pulley can be positioned to eject the roll of batting (12), the belt (18) being stretched when the loop (20) is removed. In addition to the tension-setting device (22), at least one compensating element (R6, R6'', R2, R3, R5, R6') is provided to compensate for at least the greater part of the changes on belt length which arise in certain zones when the adjustable pulley (R1) is moved from a working position to an ejecting position and the belt (18) tightens during removal of the loop (20). On the other hand, the changes in belt length which arise during winding in certain zones as the loop (20) grows larger with increasing size if the batting roll (12) are compensated for the most part by the tension-setting device (22).
Abstract:
The machine comprises a closed-loop conveyor belt (3) having a horizontal upper branch (15) on which there is placed a layer of cotton-wool (36) to be wound, a pair of support rollers (20) that can be displaced horizontally for said horizontal upper branch (15) and support means (29) that can be displaced vertically for a freely-rotatable core (30) destined for winding up the cotton-wool. After the displacement of the support rollers (20) from a distanced rest position to a position of partial reciprocal closeness, the descent is executed of the support means (29) of the core (30) from a rest position above said upper branch (15) of the conveyor belt (3) so that the core itself meets and lowers a portion of the upper branch (15) of the conveyor belt (3) and a corresponding portion of the layer of cotton-wool (36), passing between said support rollers (20), to create a loop of the conveyor belt and of the layer of cotton-wool below said upper branch (15) and said support rollers (20). These are then further displaced from a position of maximum closeness and, while the descent of the support means (29) of the core (30) continues, the operation of the conveyor belt (3) is executed for winding the layer of cotton-wool (36) round the core (30). Tensioning means (13, 14, 16, 17, 19) associated with the conveyor belt (3) are provided to maintain the tension of the belt at a constant value suitable for pressing the cotton-wool as the core (30) continues to move downward and the cotton-wool (36) is wound on the core itself.
Abstract:
For the discharge and the substitution of paper reels in devices for the unwinding of paper reels operating by contact with friction between the outer surface of the reel (34) and the upper reaches of endless friction belts (12a, b, c, d) a wedge-like member (36) is provided adapted to push the reel (34) to be discharged towards the upstream end of the unwinding device, the wedge-like member (36) being more and more wedged in between the belts (12a, b, c, d) and the reels (34) by operating the belts (12a, b, c, d) in a translation direction (F1) opposite to that of normal unwinding (F) of the paper band (C) from the reel (34). Moreover, sensing means (128, 130, 136) in form of a reflecting photocell are mounted at the downstream end of the unwinding device: the light ray (132) emitted from said photocell is intercepted from said reel (34) up to a predetermined height or diameter of the reel (34), whereby, when for a predetermined time the reflected ray (134) is lacking, a signal is generated from the photocell by which the translation motion of said belts is stopped.
Abstract:
The present invention relates to a method where rolling a length of compressed flexible material (4) into a roll (43) use a flexible roll-up belt (101, 102) moving along a belt pathway, said pathway defined by a number of rollers (5, 19), wherein at least one of said rollers (5) is active where its rotation is driven by a drive motor and drives the belt along said belt pathway, the roll-up belt can be tightened or loosened along said belt pathway by changing the position of at least one moveable roller (17) and thereby changing the length of the pathway, wherein said method comprises feeding said compressed flexible material (4) into a meeting loop cavity (14) shaped by a segment of said roll-up belt (101, 102) along said roll-up belt pathway, whereby material follows the inner surface of the loop and the rolling of the flexible material is initiated, gradually increasing the length of the segment of said roll-up belt in said meeting loop cavity (14) to ensure that that the roll-up belt segment in said meeting loop cavity gradually and continuously follows the increasing size of the roll (43) and supports the outer contour of the roll, wherein said gradual increase of the segment comprises the steps of gradually loosening the roll-up belt (101, 102) by changing the position of said at least one moveable roller (17) and simultaneously controlling the rotation speed of said at least one active roller (5) to control the length of said belt segment in said meeting loop cavity. Thereby, an automatic rolling of flexible material (4) is obtained, which adaptably expands a meeting loop cavity (14) to ensure that the rolling is initiated in a controlled manner, and furthermore, that one apparatus (1) performing the method according to the present invention may be used to roll flexible material of various dimensions and characteristics.
Abstract:
The invention relates to a reel-up 3 for receiving and winding into a roll 4 a paper web W that arrives from a drying cylinder 2 in a paper making machine and which drying cylinder 2 is located upstream of the reel-up 3 and which paper web W follows a path of travel from the drying cylinder 2 to the reel-up 3. The reel-up 3 comprises a rotatably mounted reel spool 5 onto which a paper web W can be wound to create a paper roll 4 of increasing diameter and an endless flexible belt 6 mounted for rotation along a predetermined path of travel such that the flexible belt 6 forms a loop. The flexible belt 6 is positioned adjacent to the reel spool 5 to engage the paper web W against the reel spool 5 during winding. The reel-up 3 is 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 belt 6 where the paper web W meets the flexible belt 6 such that a wedge-shaped space WS is formed between the flexible belt 6 and the paper web W. From the point of contact P, the paper web W will be carried by the flexible belt 6 to the reel-spool 5. According to the invention, the reel-up 3 further comprises an air deflector 8for diverting or evacuating air away from the wedge-shaped space WS formed between the flexible belt 6 and the paper web W. The invention also relates to a method of reeling a paper web.