Abstract:
PROBLEM TO BE SOLVED: To provide an embossing machine for a sheet material capable of simplifying and making an interchanging and adjusting operation of an embossing roll high speed. SOLUTION: The embossing machine 1 for the sheet material is equipped with at least two of the embossing rolls 4a, 4b, the end part 6a, 6b of the embossing rolls 4a, 4b are installed as rotatable in the side panel of the embossing machine 1. Each of the side panels is divided to fixed parts 2, 2' and at least one movable part 23. The end parts 6a, 6b of the embossing rolls 4a, 4b are installed inside of a supporting base 7 fixed as demountable to a seat formed in fixed parts 2, 2' of the side panel of the embossing machine 1 or in a movable part 23 of the side panel. By this, when the movable part 23 of the side panel is transferred to the fixed parts 2, 2' of the side panel, a space for dismantling at least a part of the supporting base 7 is made. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a log discharge device for a rewinding machine capable of increasing log fabrication and discharge speed to the utmost. SOLUTION: In the rewinding machine 10, the device 50 for discharging logs 20, 20' is provided with a chute 30 disposed at the downstream side of a winding region 2 to allow the formed log 20' to roll; stop means 111, 117 designed to stop the log 20' on the chute 30; and a driving means 113 for moving the stop means 111 from a working position for stopping the log 20', into a resting position for allowing the log 20 to roll. The chute 30 comprises a first part 31 with a slight inclination to lower the speed of the log 20' by friction, and a second part 32 with a large inclination to accelerate the log 20' by gravity. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
An assembly handles a roll used on a machine in a converting line. A storage assembly has a storage structure that extends above the machine that uses the roll. The storage assembly has a rack for supporting the roll in the storage structure. The rack has a roll mover configured to move horizontally between a stored position and an extended position. A transfer assembly has first and second supports on laterally opposite sides of the converting line. The first and second supports are adjacent to and extending above the machine. The transfer assembly has a lifter that is operatively connected to and supported by the first and second supports. The lifter is configured to move vertically relative to the first and second supports between the storage assembly and the machine. The transfer assembly is configured to transfer the roll between the rack in the storage structure and the machine.
Abstract:
In a controller for a converting line: (a) mechanical characterization module generates an estimate of an applied web force at a driven roller based upon velocity and torque signals, and mechanical properties associated with an upstream and downstream roller, one or both of which may be the driven roller; (b) a web stiffness estimator module generates a span stiffness estimate, a previous span tension estimate, and a span time constant based upon the span length, the velocity signals from the upstream and downstream roller sensors, a span tension signal from the span tension sensor, and the applied web force estimate from the mechanical characterization module; and (c) a tension control module generates a velocity trim command signal for the driven roller based on the span stiffness estimate, the previous span tension estimate, a web span time constant, a span tension signal, and a span tension setpoint.
Abstract:
An accumulator has a control system for controlling motion of a plurality of buckets on a continuous loop and logs traversing on a log transfer device. The log transfer device delivers a log from an entrance of the log transfer device to a bucket infeed on the accumulator. The bucket infeed receives a log from the log transfer device and allows a bucket to receive the log from the log transfer device. A time for the log to move from the entrance of the log transfer device to the bucket infeed is determined. Based on the time for the log to move from the entrance of the log transfer device to the bucket infeed, the control system controls the accumulator drive to move the continuous loop such that a bucket in the plurality of buckets is positioned at the bucket infeed with sufficient time to allow the bucket to receive the log from the log transfer device.
Abstract:
A converting line for coreless roll products includes a rewinding machine and a controller. A log of convolutely wound web material is wound in the rewinding machine during a wind cycle. A diameter of the log, a caliper of the web material, and an amount of tension of the web is determined at a plurality of time points during a time period of the winding cycle. The controller is enabled to generate a signal to change an operating condition of the converting line based upon at least one of a diameter determination at a time point during the wind cycle, a caliper determination at a time point during the wind cycle, a wound web amount determination at a time point during the wind cycle, and a tension determination at a time point during the wind cycle.
Abstract:
A rewinding machine winds a web material into a log about a core. The web material to be wound is directed about a rotating winding drum. A continuous loop is spaced from the winding drum and with the winding drum defines a nip through which the core is inserted and through which the web material is directed. A surface of the continuous loop opposite the winding drum across the nip is configured to move in a direction generally opposite of the winding drum for winding the web material about the core. A rider roll defines a winding space with the winding drum and the continuous loop. The rider roll is movable relative to the continuous loop and the winding drum to allow for an increase in a diameter of the log in the winding space during winding of the web material about the core.
Abstract:
Rolls of an embosser laminator unit may be calibrated with an iterative process of moving axial ends of the roll a set incremental distance until contact between the rolls is made and then making a correction to the distance based upon the end of the roll making contact. The rolls may be move an initial position where the faces of the rolls are devoid of contact with each other. One or both of the rolls may be rotated. The distance between the ends of the rolls may be decreased until the faces of the rolls make contact with each other. The distance between the first ends of the rolls may be increased by an incremental amount, and a determination of contact between the faces of the rolls may be made by alternate movement of the rolls by the incremental amount and position prior to contact.