Abstract: A web splicing apparatus is disclosed that includes a web unwinding unit configured to hold a running web material roll and a new web material roll and to unwind webbing from the running web material roll and a web splicing unit operable with the web unwinding unit to selectively splice the webbing of the running web material roll with webbing of the new web material roll. The web splicing unit further includes a cutting assembly configured to selectively sever the webbing of the running web material roll, a web deflection device, an actuator system configured to linearly translate the web deflection device in a first direction and a second direction opposite the first direction, and a locking mechanism operable in a locked state and an unlocked state to selectively prohibit and enable movement of the web deflection device in the first direction and the second direction.

Abstract: A method and device for carrying out a reel splice to avoid the fluttering of tails makes it possible to allow the tail to also adhere across its entire length, in particular on a web with high mechanical strength. When using a fluid-repelling substrate, an adhesive-free liquid is applied to a new roll and/or to at least a portion of the side of the tail facing the web. The method and device can be used in reel splicers which process fluid-repellent substrates, such as for example plastic films, metal films or laminated laminates, so that a sticking out or fluttering of the tail is avoided.

Abstract: A winder for winding continuous webs or interleaved web segments into rolls is disclosed. The winder has first and second rollers, a pressure assist device, a winding spindle, and a continuous belt having first and second surfaces. The belt is disposed about the first and second rollers. The web material is disposed upon at least a portion of the first surface of the belt. The winding spindle receives the web material when the spindle is proximate to the web material disposed upon the first surface of the belt. At least one of the longitudinal axis of the first roller and the longitudinal axis of the second roller is adjustable relative to the winding spindle. The pressure assist device is disposed proximate to the second surface of the belt and is adjustable relative to at least one of the second surface of the belt and the winding spindle.

Abstract: 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.

Abstract: In a method for calculating the diameter of a continuous-material reel on a roller, with which the roller is mounted on a swivel arm that is swivelable about a swiveling axis; the roller rotates at a changeable winding speed, and the continuous material is unwound from the roller and directed to a continuous-material machine, or it is removed from a continuous-material machine and wound onto the roller, the winding speed is set as a function of the web-conveyance speed, and the diameter of the continuous-material reel is calculated in a reel-control system; the winding speed is changed when the swivel arm on which the roller is mounted is swiveled about its swiveling axis during the winding motion; a correction value for correcting the change in winding speed is incorporated in the calculation of the diameter of the continuous-material reel, the correction value being determined within the reel-control system, and a related reel-control system is provided.

Abstract: A splice is made, between a tail end of first web and a lead end of a second web coiled about an unwind axis, by winding a portion of the first web adjacent the tail end of the first web about a splicing roll mounted for rotation about a splice roll axis oriented substantially parallel to the unwind axis, and then joining the tail end to the lead end by compressing an adhesive between an inside surface of the tail end and an outer surface of the second web. Compression of the adhesive is accomplished by urging the splice roll against the coiled second web while the coiled second web is rotating about the unwind axis in an unwind direction and the splicing roll is rolling about the splice roll axis in a direction opposite to the unwind direction.

Abstract: A film feeding device etc. in which, even if film rolls in which tapes are applied to joint between films of the rolls are used, an occurrence of a bag making failure caused by the tape is prevented. A film feeding mechanism (10A) has a receiving member (72) for holding the leading edge of a film (1B) of the standby side and a joining sealer (71) for joining films (1A, 1B). A tape (B) applied to the film (1A) on the use side is detected by a sensor (83), and according to the result of the detection, a cutter (81) cuts of the film (1A) at a portion on the downstream side of the tape. Then, the cut film (1A) and the film (1B) of the standby side are joined by the joining sealer (71), and the two films joined are sent as a long film.

Abstract: A process for winding a web material such as continuous webs or interleaved web segments into rolls is disclosed. The process disposes a web material on a conveyor belt. At least one winding spindle is disposed proximate the web material disposed upon the conveyor belt. The conveyor belt is adjusted relative to the at least one winding spindle. The web material is then transferred to the at least one winding spindle from the conveyor belt.

Abstract: An automatic reel unwinding apparatus in a machine for packaging products having a bearer structure (14, 15) carrying a pair of rotating arms (16), centrally hinged to the bearer structure (15) through a rotation shaft (17) and carrying at their ends, on two shafts (18, 18?), at least a pair of reels (12, 12?), the rotation shaft (17) being commanded through a speed reducer (20) and each of the two shafts (18, 18?) being commanded by a motor reducer (21) through a respective transmission (22) able to be selectively engaged with the motor reducer, the withdrawable shafts (18, 18?) being fixed to at least one openable support (19, 19?) arranged at an end of the arms (16).

Abstract: A winder for winding continuous webs or interleaved web segments into rolls is disclosed. The winder comprises first and second rollers, each having a generally mutually parallel longitudinal axis. The winder also has a continuous belt. The continuous web is disposed upon at least a portion of the continuous belt. A rotatably driven winding spindle is adapted to receive the continuous web or interleaved web segments when the spindle is proximate to the continuous web or interleaved web segments disposed upon the continuous belt.

Abstract: A feeding apparatus comprises a rotatably supported turret arm for supporting a new web roll and an old web roll, and a turret arm turning motor for rotating the turret arm, and splices a web of the new web roll to a web of the old web roll, thereby continuously supplying a web. The feeding apparatus further comprises a web roll diameter measuring distance meter, provided at a position opposed to the circumferential surface of the new web roll when the new web roll stops at a diameter measuring position, for measuring the distance to the new web roll; and a control device for determining the diameter of the new web roll in accordance with an output from the distance meter, and driving the turret arm turning motor in accordance with the determined diameter of the new web roll to move the new web roll to a splicing standby position.

Abstract: Continuous web feed is provided by using an apparatus for unwinding a web on a continuous basis by means of an automatic web splicing apparatus. An arm supporting a web roll is rocked when unwinding of the web is switched between web rolls. When the web is switched from one of web rolls (roll A) to the other (roll B), the remaining core of the web roll is removed subsequent to switching. Then the web roll installation position is shifted to the side reverse to the front and back of the web being unwound from the other web roll (roll B). After that, a new web roll is mounted in position. When the web is switched from the other web roll (roll B) to the web roll (roll A), the remaining core of the web roll is removed subsequent to switching. The web roll installation position is arranged in such a way that a new web roll is then mounted on the same side as the front and back of the web being unwound from the web roll.

Abstract: In the case where the width of a web roll for the next job is much different from that of the web roll for the former job, the rotational position of the new web roll is moved to a position at which a web of the new roll is easily pasted to the web of the old roll and the new web roll is held at the position. A device for continuously supplying a web can continuously supply the web by adhering the web of an old web roll onto the web of the new web roll. The device includes a manual paper paster setting means for setting a manual paper paster mode and a control device for locating/stopping the rotational position of the new web roll at an adhering waiting position in response to a signal from the manual paper paster setting means.