摘要:
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). A mandrel cupping assembly (400) releasably engages the second ends (312) of the mandrels (300) intermediate the core loading segment (322) and the core stripping segment (326) of the mandrel path (320) by means of a mandrel cup (454) associated with each mandrel (300). The mandrel cups (454) are supported on cupping arms (450) pivotably supported on a cupping arm support (410) rotating about the turret assembly central axis (202). The distance between the turret assembly central axis (202) and the respective cupping arm pivot axis (451) varies as a function of the position of the cupping arm (450) about the turret assembly central axis (202).
摘要:
A web winding system (10) for winding adhesive backed web (12) on cores (14) mounted on wind-up spindles (28, 30). The web (12) is supported on a rotating suction drum (24). A knife (32) mounted on a rotating wheel (34) cuts the web (12) against the supporting drum (24). A tab bar (68) is mounted on the wheel (34) adjacent to the knife (32), and applies a tab (60) to the web (12) in registration with the cut. In a second position of the wheel (34) a tab source (70) moves toward the tab bar (68) and applies a tab (60) to its surface (68). The knife (32) is heated by a heater (35) to a temperature above adhesive softening and below adhesive carbonizing to prevent adhesive to stick to or to accumulate on the knife (32). The web (12) is lead to the supporting drum (24) around a stationary gapping roller (18) and a retractable gapping roller (22), mounted on an arm (42) which is pivotable around roller (10). When the knife (32) has cut the web (12) the arm (42) pivots clockwise, and lengthens the distance between retractable roller (22) and supporting drum (24), thus forcing the web to slide on the drum (24), and to form a gap between the leading cut end (36') and the trailing cut end (36) of the web. The gap allows for flying transfer of the web between the cores (14) on the two wind-up spindles (28, 30).
摘要:
Système (10) d'enroulement d'une bande (12) autocollante sur des noyaux (14) montés sur des broches d'enroulement (28, 30). La bande (12) est supportée sur un tambour rotatif d'aspiration (24). Un couteau (32) monté sur une roue rotative (34) coupe la bande (12) contre le tambour de support (24). Une barre (69) à oreilles est montée sur la roue (34) adjacente au couteau (32) et applique une oreille (60) sur la bande (12) en concordance avec la coupe. Dans une seconde position de la roue (34), une source d'alimentation (70) en oreilles se déplace vers la barre à oreilles (68) et applique une oreille (60) sur sa surface (68). Le couteau (32) est chauffé par un dispositif de chauffage (35) jusqu'à une température supérieure à la température de ramollissement de l'adhésif et inférieure à la température de carbonisation de l'adhésif pour empêcher que l'adhésif ne colle ou ne s'accumule sur le couteau (30). La bande (12) est amenée sur le tambour de support (24) autour d'un rouleau fixe créateur d'intervalle (18) et d'un rouleau rétractable créateur d'intervalle (22) monté sur un bras (42) qui pivote autour du rouleau (10). Lorsque le couteau (32) a coupé la bande (12), le bras (42) pivote dans le sens des aiguilles d'une montre et agrandit l'intervalle entre le rouleau rétractable (22) et le tambour de support (24), forçant ainsi la bande à glisser sur le tambour (24) et former un intervalle entre l'extrémité coupée d'attaque (36') et l'extrémité coupée de fuite (36) de la bande. L'intervalle permet le transfert rapide de la bande entre les noyaux sur les deux broches d'enroulement (28, 30).
摘要:
A method of rewinding a web (W) on cores to provide retail-sized rolls wherein the web (W) is carried by a bedroll (14,114) equipped with an emergent knife means (21,24,124) for cutoff and control means (25,125) for transfer of the web (W), the knife (24,124) and control means (25,125) operating on the web (W) in conjunction with a brush roll (16).
摘要:
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).
摘要:
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). A mandrel cupping assembly (400) releasably supports the second ends (312) of the mandrels (300) along a portion of the closed mandrel path (320). Along a portion of the closed mandrel path (320) intermediate the core stripping segment (326) and the web winding segment (324) the second ends (312) of the mandrels (300) are unsupported. At least one mandrel support (610, 710) supports the individual mandrel (300) intermediate the first end (310) and the second unsupported end (312) during movement of the mandrel (300) intermediate the core stripping segment (326) and the web winding segment (324) of the closed mandrel path (320). The mandrel support (610, 710) comprises a rotating mandrel support surface (620, 720), which has a variable radius, and which can be helical.
摘要:
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).
摘要:
A web winding system for winding adhesive backed web on cores mounted on wind-up spindles. The web is supported on a rotating suction drum. A knife mounted on a rotating wheel cuts the web against the supporting drum. A tab bar is mounted on the wheel adjacent to the knife, and applies a tab to the web in registration with the cut. In a second position of the wheel a tab source moves toward the tab bar and applies a tab to its surface. The knife is heated by a heater to a temperature above adhesive softening and below adhesive carbonizing to prevent adhesive to stick to or to accumulate on the knife. The web is lead to the supporting drum around a stationary gapping roller and a retractable gapping roller, mounted on an arm which is pivotable around the roller. When the knife has cut the web the arm pivots clockwise, and lengthens the distance between retractable roller and supporting drum, thus forcing the web to slide on the drum, and to form a gap between the leading cut end and the trailing cut end of the web. The gap allows for flying transfer of the web between the cores on the two wind-up spindles.
摘要:
A cutting-rewinding machine (16) consists of a plurality of reels (1), placed on spokes (2) with motor (3), which rotate in logic sequence each time a coil (9) of cut strips (4′) is formed on one of them. In contact with the reel (1), on which the coil (9) is forming, a peripheral winding roller (8) is present, to which are coupled the accompanying rollers (13) and (14) which wind the tails of the strips (4′) and make then adhere to the multiple coil (9) just formed and the heads of the following strips (4′) to the reel (1′) on which the new coil must be wound, the moment a blade (15) cuts the same strips. In addition, the machine is equipped with a group of spreading rollers, coupled either to said peripheral winding roller (8) or to the reel (1′) while waiting to receive the winding of new coil (9), while a previous coil (9) is being wound.