Abstract:
The rewinder machine comprises: a first winding roller (3); a second winding roller (5), defining with said first winding roller (3) a winding cradle; a feeder (33) for sequentially introducing winding cores to said winding cradle; an optional glue applicator (21) for applying glue to said cores. The feeder (33) may include an element (39) for applying glue to the winding cores while they are being fed to said winding cradle. In a special embodiment, the feeder is mechanically linked to a system for unloading the roll from the winding cradle.
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:
In a device for winding sheet-like material around bobbin cores individually supplied after each other, the initial segment (110) of a new sheet-like product portion (111) is arranged with an insertion element (54) under the first new turn of the sheet-like material.
Abstract:
A web winding apparatus (90) and a method of operating the apparatus are disclosed. The apparatus can include a turret assembly (200), a core loading apparatus (1000), and a core stripping apparatus (2000). The turret assembly (200) supports rotatably driven mandrels (300) for engaging hollow cores (302) upon which a paper web (50) is wound. Each mandrel (300) is driven in a closed mandrel path (320), which can be non-circular. The core loading apparatus (1000) conveys cores (302) onto the mandrels (300) during movement of the mandrels (300) along the core loading segment (322) of the closed mandrel path (320), and the core stripping apparatus (2000) removes each web wound core (302, 51) from its respective mandrel (300) during movement of the mandrel (200) along the core stripping segment (326) of the closed mandrel path (320). The turret assembly (200) can be rotated continuously, and the sheet count per wound log (51) can be changed as the turret assembly (200) is rotating. The apparatus (90) can also include a mandrel (300) having a deformable core engaging member (3100).
Abstract:
A web winding apparatus (90) and a method of operating the apparatus are disclosed. The apparatus can include a turret assembly (200), a core loading apparatus (1000), and a core stripping apparatus (2000). The turret assembly (200) supports rotatably driven mandrels (300) for engaging hollow cores (302) upon which a paper web (50) is wound. Each mandrel (300) is driven in a closed mandrel path (320), which can be non-circular. The core loading apparatus (1000) conveys cores (302) onto the mandrels (300) during movement of the mandrels (300) along the core loading segment (322) of the closed mandrel path (320), and the core stripping apparatus (2000) removes each web wound core (302, 51) from its respective mandrel (300) during movement of the mandrel (200) along the core stripping segment (326) of the closed mandrel path (320). The turret assembly (200) can be rotated continuously, and the sheet count per wound log (51) can be changed as the turret assembly (200) is rotating. The apparatus (90) can also include a mandrel (300) having a deformable core engaging member (3100). The turret assembly (200) can include a rotating mandrel support (230) for carrying the mandrels in a closed mandrel path (320), and further can include a mandrel guide (142, 144) for positioning the mandrels (300) along the closed mandrel path (320).
Abstract:
A web winding apparatus (90) and a method of operating the apparatus are disclosed. The apparatus can include a turret assembly (200), a core loading apparatus (1000), and a core stripping apparatus (2000). The turret assembly (200) supports rotatably driven mandrels (300) for engaging hollow cores (302) upon which a paper web (50) is wound. Each mandrel (300) is driven in a closed mandrel path (320), which can be non-circular. The core loading apparatus (1000) conveys cores (302) onto the mandrels (300) during movement of the mandrels (300) along the core loading segment (322) of the closed mandrel path (320), and the core stripping apparatus (2000) removes each web wound core (302, 51) from its respective mandrel (300) during movement of the mandrel (200) along the core stripping segment (326) of the closed mandrel path (320). The turret assembly (200) can be rotated continuously, and the sheet count per wound log (51) can be changed as the turret assembly (200) is rotating. The apparatus (90) can also include a mandrel (300) having a deformable core engaging member (3100). The sheet count or web length per wound log (51) can be varied by varying the rotational speed of the turret assembly (200) relative to the rotational speed of the bedroll (59) from which the web (50) is transferred to the turret assembly (200).
Abstract:
A method for producing logs (Ll, L2) of web material (N) wound around tubular cores wherein the tubular core (Al-A4) is equipped with glue to secure the initial end of the web material and allow winding. Part of the glue applied to the tubular core is transferred to the web material (N) before it is severed upon termination of winding the log, to seal the final free end of the formed log.
Abstract:
The machine comprises: a pair of winding rolls (1, 3) defining a winding cradle (5); feed means (13) for feeding a weblike material (N) toward said cradle (5); slitter means (14) for slitting said weblike material (N) lengthwise; insertion means (55) for inserting a plurality of axially aligned tubular winding cores (A) into said winding cradle (5); and a slitting station (49, 51) situated upstream of said winding rolls (1, 3), with a plurality of tools (67) for dividing, at right angles to its axis, a tube (T) of great length into tubular cores (A) of limited length. The slitting station (49, 51) contains a mandrel (71) with means for inserting said mandrel (71) into said tube (T) and for withdrawing the mandrel from the tubular cores obtained by dividing up said tube.
Abstract:
The object of the invention is a re-reeling machine comprising a conveyor roller (11), suitable for being partially wound with a sheet material (40), a movable winding roller (13), able to be positioned by means of the rotation of a control cam (18), suitable for supporting the reel (30' and 30'' respectively) in the winding and discharge phase, and a transfer roller (23), exerting elastic pressure on the reel, suitable for bringing the reel into contact with the winding roller (13), in which re-reeling machine the replacement core (30) encounters the sheet material before reaching the axis of conjunction between the transfer roller (23) and the conveyor roller (11), and the rollers always rotate at constant speed, the conveyor roller (11) and the winding roller (13) rotating at the same peripheral speed, while the transfer roller (23) rotates at a slightly lower peripheral speed.
Abstract:
Apparatus (1) for winding up at least two material webs (7), in particular film webs, having at least two receiving apparatuses (3), for the rotatable mounting of at least one winding core (4), it being possible for the receiving apparatuses (3) to be transferred between a winding position (15) for winding up at least one material web (7) on the winding core (4) and a removal or loading position (16, 16', 16' ') for removing at least one winding core (17) which has finished being wound up or for feeding at least one empty winding core (4), and at least two winding cores (4) being arranged coaxially in the receiving apparatus (3) for simultaneously winding up the material webs (7) on separate winding cores (4), the winding cores (4) being mounted rotatably in each case in two bearing points (51) which are provided adjacent to the respective winding core (4), and the receiving apparatus (3) having at least three carrying arms (5), one winding core (4) being mounted in each case between two carrying arms (5).