Abstract: A perforating apparatus has a first roll and a second roll, each being operatively engageable with a support. The first roll has a first longitudinal axis about which the first roll rotates and a first anvil disposed on the first roll and having a first design. The second roll has a second longitudinal axis about which the second roll rotates. A second anvil is disposed on the second roll. The second anvil has a second design. At least one blade is disposed on the support so as to cooperate in interacting relationship with one of the first anvil and the second anvil when the support is operatively engaged with the one of the first anvil and the second anvil. The apparatus comprises two alternative paths for the web material.

Abstract: A motorization group of reels in a machine for winding plastic film onto bobbins, wherein at least two spindles are positioned on a rotating plate around a central shaft constrained to a frame of the machine, a motor being operatively coupled to each of the spindles, in the motorization group each of the motors being constrained to the frame and connected to each of the spindles by a belt transmission which comprises a central deflector unit aligned with a central shaft outside the frame, toothed belts connecting the central deflector unit, on the one hand, to the spindles, and on the other hand, to the motors.

Abstract: The disclosure generally relates to a film roll core used for winding a polymeric film around, an apparatus for winding the polymeric film on the film roll core, a process of winding the polymeric film on the film roll core, and a rolled film on the film roll core. The disclosure more particularly relates to an open gap film roll core that is capable of reducing defects in wound films.

Abstract: A cutter blade drive mechanism reliably returns a cutter blade from a forward position to a retracted position. A rotation transfer mechanism 34, which transfers rotation of a drive motor 31 to a drive gear 32, has a cutter blade return gear 50 that meshes with the drive gear 32, a compound gear (controller) 40 to which rotation from the drive motor 31 is transferred, and a transfer gear 51 that meshes with the compound gear 40 and the cutter blade return gear 50. While an intermittent teeth part 43a of the compound gear 40 and the transfer gear 51 are meshed, the cutter blade 21 moves to the forward position 21A.

Abstract: The drive source of a feeder (111) is utilized to drive a feed error correction device for correcting error in feeding a moving body caused by extension of linear bodies (161A, 161B) of the feeder. With the feeder (111) running, when extension at or above a predetermined value occurs in the linear bodies (161A, 161B), a guide unit (171) including a driven rotating wheel (172) for the linear bodies tows (or displaces) through power received from the drive source of the feeder, bringing the linear bodies (161A, 161B) into a state of appropriate tension. The guide unit (171) receives transmission of power in one direction only and appropriately tows the linear bodies (161A, 161B), thereby cancelling extension of the linear bodies at or above the predetermined value.

Abstract: A cutter has a first cutter blade moving mechanism 24 that moves a first cutter blade 21 reciprocally between a forward position 21A where recording paper 3 is cut and a retracted position 21B separated from the forward position 21A; and a second cutter blade moving mechanism 25 that moves a second-cutter blade 22 between a contact position 22A where the paper is cut in contact with the first-cutter blade 21 and a release position 22B separated from the contact position. The second cutter blade moving mechanism 25 sets the second cutter blade 22 to the release position 22B before the first cutter blade moving mechanism 24 moves the first cutter blade 21 from the forward position 21A to the retracted position 21B. Wear and noise can be prevented because the two cutter blades 21, 22 do not contact after cutting the recording paper 3.

Abstract: A web winding apparatus comprises two bobbins each being able to wind a web thereon; a cutter provided movably between the bobbin on one side and the bobbin on the other side for cutting the web being transferred; and a web pressing member provided at a position to face the cutter so that the web being transferred is put between the web pressing member and the cutter. The web pressing member is provided movably together with the cutter between the two bobbins, is configured to operate as cutter receiving member which presses and cuts the web in cooperation with the cutter, and is further configured to press a cut end of the web so cut on the bobbin being empty while holding the cut end of the web, to wind the cut end on the bobbin being empty.

Abstract: The web winding apparatus is characterized in that the two web pressing members are formed such that upon swinging, the two web pressing members move towards an empty one of the two bobbins positioned at one side of the two web pressing members which has been backed away from the cutter and upon swinging, the one of the two web pressing members which has approached the cutter presses an end portion of the web which is to be cut by the cutter on the empty bobbin thereby to wind the end portion of the web on the empty bobbin.

Abstract: A motorized head for applying fiber composite material to an application surface includes a drive roll assembly for applying fiber composite material to an application surface. The drive roll assembly includes a drive roll and a backup roll and a drive roll nip formed between the drive roll and the backup roll. At least one cutter is mounted on the drive roll for cutting fiber composite material, and an ejector mechanism is mounted on the drive roll behind the cutter mechanism. The ejector mechanism positively displaces the leading end of the cut tow material away from the surface of the drive roll to ensure that the cut tow material does not misfeed as it approaches the fiber path chute downstream from the cutter.

Abstract: A cutting and transport roller for material webs includes media outlet openings in its peripheral surface to which varying pressure can be applied to control the seating pattern of the material web on the peripheral surface of the roller. The roller has a system of pressure feed lines by which the media outlet openings are connected to means for supplying the media. The roller has at least one pressure reservoir that is a part of the pressure feed line system and that can be connected by a valve to at least one part of the media outlet openings.

Abstract: Apparatus for causing paper webs to tear off within rewinding machines, the web (2) being provided, at regular intervals, with transverse perforation which subdivide the web into sheets joined to each other but able to be separated in correspondence of said perforation lines, the apparatus comprising means to cause the tearing of the web (2) upon the passage of a perforation line (p) which separates the last sheet of a log (RO) in the course of formation from the first sheet of the next log to be formed, characterized in that the tearing means are of pneumatic type (SP) able to direct a jet of compressed air toward the line (p).

Abstract: Apparatus for causing paper webs to tear off within rewinding machines, the said web (2) being provided, at regular intervals, with transverse perforation which subdivide the web into sheets joined to each other but able to be separated in correspondence of said perforation lines, the apparatus comprising means to cause the tearing of the web (2) upon the passage of a perforation line (p) which separates the last sheet of a log (RO) in the course of formation from the first sheet of the next log to be formed, characterized in that the said tearing means are of pneumatic type (SP) able to direct a jet of compressed air toward the said line (p).

Abstract: A drum support arm supports a cutting drum with a sector cross section and a receiving drum with a circular cross section, and moves between a web winding changeover position for causing the receiving drum to contact a core and a spacing position for keeping the receiving drum away from the core. The guide roller moves between an approaching position for lifting a web from the receiving drum and a retracted position for causing the web contact a peripheral surface of the receiving drum. When the drum support arm moves to the web winding changeover position, the guide roller moves to the retracted position, and when the drum support arm moves to the spacing position, the guide roller moves to the approaching position. When the drum support arm is set to the web winding changeover position, the cutting drum rotates once to cut the web. A front end of the web formed by cutting is pressed against the core by the receiving drum and wound around the periphery of the core.

Abstract: For the winding of a material web on a driven winding roll, it is cut through after the completed winding of a winding roll and the start of the following web is fastened on a winding core. The web is fed in the winding roll via a guide device, preferably consisting of a winding roller, and, after being cut through in a guide channel laid around a winding tube. In order to be able to wind the web with alternating outer sides into a winding roll, the web is fed, according to the desired outer side, from the left or from the right on winding in the winding tube. The winding tube is driven with a corresponding one of two opposite directions of rotation.

Abstract: A web cut-off assembly for a rewinder apparatus includes a bedroll having a pair of retractable bedroll blades that move to a protracted position to engage the web material for a web cutting event. A chopper roll is disposed proximate to the bedroll and includes a first blade and a second blade extending from a circumference thereof. The first and second blades rotationally intermeshing with the bedroll blades in the web cutting event. The second blade is configured to effectively stretch and hold the web relative to the bedroll blades as the first blade severs the web in the web cutting process.

Abstract: A device including blades and pins is mounted for interaction with a bedroll for separating or cutting a web or sheet of material as the web travels around the circumference of the bedroll. The assembly comprises a clamp having a bottom side and a front side. Two blades having an upper surface and a lower surface are provided, with a blade spacer located between the blades, and operably connected to the clamp. A blade from a nearby chopper roll is adapted to engage the blades of the device to separate a sheet as it travels along the processing pathway. A unitary elongated mandrel that is fixed in relation to the blade, and configured to carry or move a severed web, is provided. The unitary mandrel employs a strut from which projections or pins extend in a line or row, the pins being adapted to pierce and carry the severed tail of the web to a core for gluing the tail to the core, followed by winding.

Abstract: For the winding of a material web on a driven winding roll, it is cut through after the completed winding of a winding roll and the start of the following web is fastened on a winding core. The web is fed in the winding roll via a guide device, preferably consisting of a winding roller, and, after being cut through in a guide channel laid around a winding tube. In order to be able to wind the web with alternating outer sides into a winding roll, the web is fed, according to the desired outer side, from the left or from the right on winding in the winding tube. The winding tube is driven with a corresponding one of two opposite directions of rotation.

Abstract: A cutting machine which dispenses and cuts sheet material includes a carriage on rails for movement parallel to the horizontal rolls carried on a vertical carrousel. The carriage supports a cutting table top and a drive roller at one side for driving the roll of floor covering material on the carrousel in forward direction for feeding the sheet to the table top and in reverse direction for re-winding. A measuring wheel and electric eye for detecting the presence of the material are located on the table top. A sensor is provided to detect if the measuring wheel is de-activated during use. A control unit includes a printer and is arranged to cause measurement and feeding of a measured length of the material which is fed to a re-roller on the carriage.

Abstract: A web cut-off assembly for a rewinder apparatus includes a bedroll having a pair of retractable bedroll blades that move to a protracted position to engage the web material for a web cutting event. A chopper roll is disposed proximate to the bedroll and includes a first blade and a second blade extending from a circumference thereof. The first and second blades rotationally intermeshing with the bedroll blades in the web cutting event. The second blade is configured to effectively stretch and hold the web relative to the bedroll blades as the first blade severs the web in the web cutting process.

Abstract: A device including blades and pins is mounted for interaction with a bedroll for separating or cutting a web or sheet of material as the web travels around the circumference of the bedroll. The assembly comprises a clamp having a bottom side and a front side. Two blades having an upper surface and a lower surface are provided, with a blade spacer located between the blades, and operably connected to the clamp. A blade from a nearby chopper roll is adapted to engage the blades of the device to separate a sheet as it travels along the processing pathway. A unitary elongated mandrel that is fixed in relation to the blade, and configured to carry or move a severed web, is provided. The unitary mandrel employs a strut from which projections or pins extend in a line or row, the pins being adapted to pierce and carry the severed tail of the web to a core for gluing the tail to the core, followed by winding.

Abstract: A rewinder includes a lockout cam for controlling the actuation of transfer pins and transfer pads on the bedroll of a rewinder. The transfer pins and transfer pads are mounted on a rotatable pin shaft and a rotatable pad shaft, respectively. A cam follower assembly on the pin shaft is engageable with a pin cam for controlling movement of the transfer pins. A cam follower assembly on the pad shaft is engageable with a pad cam for controlling movement of the transfer pads. The lockout cam is rotatably mounted relative to the bedroll. A first portion of the lockout cam is engageable with the cam follower assemblies for preventing the pin and pad cam follower assemblies from engaging the pin cam and the pad cam, respectively. A second portion of the lockout cam permits the pin and pad cam follower assemblies to engage the pin cam and the pad cam, respectively.

Abstract: A rewinder includes a lockout cam for controlling the actuation of transfer pins and transfer pads on the bedroll of a rewinder. The transfer pins and transfer pads are mounted on a rotatable pin shaft and a rotatable pad shaft, respectively. A cam follower assembly on the pin shaft is engageable with a pin cam for controlling movement of the transfer pins. A cam follower assembly on the pad shaft is engageable with a pad cam for controlling movement of the transfer pads. The lockout cam is rotatably mounted relative to the bedroll. A first portion of the lockout cam is engageable with the cam follower assemblies for preventing the pin and pad cam follower assemblies from engaging the pin cam and the pad cam, respectively. A second portion of the lockout cam permits the pin and pad cam follower assemblies to engage the pin cam and the pad cam, respectively.

Abstract: Apparatus for dispensing paper materials from a supply roll mounted within a housing. The housing has lateral flanges for permitting rapid installation of a drum, its associated cutoff device, and a supply roll tensioning device. The drum is a modular unit that includes a main body with an internal hollow shaft for accommodating an assembly at either end. Gripping collars are mounted on the drum and on the end elements which function to ensure retention and dispensing of paper from the supply roll. The length of the drum can be varied, depending upon the type of material being dispensed.

Abstract: The invention provides a new latch mechanism which is controlled by a camshaft which is mounted axially in the bedroll and by a servo motor which rotates the camshaft. The servo motor normally rotates the camshaft in the same direction and at the same speed as the bedroll. When the web is to be severed, the speed of the servo motor is either increased or decreased to rotate the camshaft relative to the bedroll. The rotation of the camshaft allows push rods in the bedroll to move radially inwardly to release the severing and transferring mechanism. Cam followers for the severing and transferring mechanism engage a stationary cam and control the movement of the mechanism. After the web is severed and transferred, the camshaft is rotated to force the push rods radially outwardly to relatch the severing and transferring mechanism.