A machine to produce stacks of folded pop-up wipes from material that is threaded along a path having a direction through the machine. The machine includes a holder, a first tension unit, a perforation unit to generate perforations in the material in a direction orthogonal to the direction of the path, and a folding unit to fold the material in a direction orthogonal to the direction of the path. The material is threaded along a path through the machine via the first tension unit, the perforation unit and the folding unit. A control unit controls the machine to produce folded pop-up wipes by individually controlling tension of material along one or more sections of the path and to increase tension of the material in a section of the path located after the perforation unit to stretch a generated perforation in the section of the path by a target distance.

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.

A method for reducing the effects of variations in an unwinding, convolutely wound roll of web material is disclosed. The method utilizes the steps of: a. selecting a reference objective relating to a downstream operation, b. choosing at least one feedback device correlated to the reference objective, c. collecting process data from the at least one feedback device at different positions within a time-varying operation cycle for at least one operation cycle at a learning speed, d. calculating an error as the difference between the collected process data from step (c) and a reference signal related to the selected reference objective, e. generating a correction signal based upon the calculated error from step (d) and, f. applying the correction signal to the actuator during a succeeding time-varying operation cycle.

An image forming apparatus includes: a conveyance section configured to convey a sheet in a direction opposite to a first conveyance direction during image formation, the direction being a second conveyance direction; and a distortion correction section disposed on an upstream side of a transfer nip in the first conveyance direction and configured to correct, when the sheet is conveyed by the conveyance section in the second conveyance direction, distortion of the sheet generated when the sheet passes through a fixing nip.

A slitter device includes a first tension detecting unit for obtaining a raw-cloth tension value which is a tension value of a sheet material fed out from a let-off mechanism, a second tension detecting unit for obtaining a divided material tension value which is the sum of the tension values of each of divided sheet materials, and a drive control device which includes a comparator to which the first tension detecting unit and the second tension detecting unit are connected, and which compares the raw-cloth tension value and the divided material tension value with each other; and a drive controller which controls an operating state of a roll driving motor such that the raw-cloth tension value and the divided material tension value coincide or substantially coincide with each other based on the comparison result of the comparator.

A roll feeder is usable to convey a hoop material to a pressing machine. The roll feeder includes a paired first roll and second roll configured to be disposed so as to clamp the hoop material and feed the hoop material along a conveyance direction, a motor configured to drive at least one of the first roll and the second roll, and a controller configured to control drive of the motor. The controller includes a process drive instruction component configured to drive the motor so as to feed the hoop material to a pressing machine side in between one press working and next press working, and a working drive instruction component configured to drive the motor so as to feed the hoop material to the pressing machine side during press working.

To provide a medicine inspection system capable of appropriately outputting an inspection result while minimizing damage and the like to a packaging bag and a medicine.

A medicine inspection system 10 includes an inspection device 20 which inspects a numerical quantity and/or a type of a medicine contained in a packaging bag p based on an image photographed of the packaging bag p to be inspected, and a marking device 50 which records an inspection result from the inspection device on the packaging bag p. After the packaging bag p, which has a seal section S formed by pressure bonding an overlapping portion of a packaging paper, is inspected at the inspection device 20, a stamp which indicates the inspection result thereof is output by a marking device 50 onto the seal section S.

Provided is a printer that can appropriately handle a paper (media) wound into a roll with one end of the paper affixed to a core, when the trailing end of the paper is detected, the trailing end of the paper being attached to the winding core in multiple ways. The printer has: a roll paper support that supports the core of a roll of paper; a roll driver that turns the core and delivers the paper; a conveyance device that conveys the delivered paper; a tension detection switch that outputs a first detection value when tension produced on the paper delivered from the roll is greater than or equal to a threshold; and a controller that drives the roll driver in the direction delivering the paper when the output of the tension detection switch changes to the first detection value in response to rotation of the core.

A transport control method for use in transporting a medium in a predetermined direction by an upstream drive roller and a downstream drive roller, to operate the downstream drive roller by using PID control based on a detection value of a tension sensor disposed downstream of the upstream drive roller and upstream of the downstream drive roller for detecting tension. The transport control method includes a stable state determining step for determining, at time of the operation, whether a difference between the detection value of the tension sensors and a target value is within a stable width to make a stable state which maintains a stability time; and a gain decreasing step for decreasing a gain of the PID control to be less than an initial value when the difference is determined to be in the stable state.

A unit for applying opening devices to a web of packaging material at predetermined areas of the web arranged at a non-zero distance from one another along the web; the unit comprises a feeding group configured for feeding the web along an advancing path; at least one first tool, arranged at a first desired position along the path and configured to apply a first opening device to a corresponding first predetermined area arranged at the first desired position; and at least one second tool, arranged at a second desired position along the path and configured to apply a second opening device to a corresponding second predetermined area arranged at the second desired position; and a buffer portion arranged along the path, downstream of the second tool and upstream of the first tool, and configured to include and/or accumulate a web portion having a number of predetermined areas which is an integer multiple of the number of tools of the unit.