Rewinder for producing paper logs, comprising a winding station with a first winding roller, a second winding roller and a third winding roller driven by corresponding electric motors, including a detection system capable to detect a succession of diameters of the log being formed in the winding station and a programmable electronic unit connected to the electric motors. The system compares the measured diameters with a succession of corresponding diameters of predetermined value and to calculate a sequence of differences between these values. The electronic unit determines a parameter (a) related to the trend over time of the values. The electronic unit changes the relative speed of the first and second roll depending on the value of the parameter.

Rewinder for making paper logs of paper material including a detection system with optical means adapted to detect, in a succession of predetermined detection times, a succession of diameters assumed in such times by a log being formed in a winding station and a programmable electronic unit which compares the diameters measured by the optical means with a succession of corresponding preset diameters and to calculate a sequence of differences. The processing unit receives a signal relating to the value of the actual diameter of the completed log and determines a parameter related to the trend over time of the differences. Elements for adjusting the thickness of the paper web automatically adjust said thickness if the parameter is between predetermined values and.

A continuous wire drive system for a needleless electrospinning apparatus, the electrospinning apparatus including an electrospinning enclosure and within which a nanoscale or submicron scale polymer fiber web is formed onto a substrate from a liquid polymer layer coated onto a plurality of continuous electrode wires passing through the electrospinning enclosure. The continuous wire drive system includes a master wire drive drum and a slave wire drive drum, each of the master wire drive drum and slave wire drive drum including a plurality of wire guides, each of the wire guides including a channel or groove for receiving one of the plurality of continuous electrode wires. The continuous wire drive system is external to the electrospinning apparatus, and the continuous wire drive system drives the plurality of continuous electrode wires through the electrospinning enclosure.

The invention relates to a monitoring method (100) for monitoring an unwinding process of an unwinding device (2), comprising the following steps: at least partially unwinding (101) a web material (11) from a reel (10), detecting (102) at least one irregularity (12) of the web material (11) and/or the unwinding process. Furthermore, the invention relates to an unwinding device (2) for performing an unwinding process as well as an unwinding system (5) for performing an unwinding process.

A kit for dispensing disposable stethoscope covers and other instrument covers is provided. The kit may include a cartridge and a dispenser for automatic touch-free dispensing of disposable stethoscope covers. The kit further includes a first spool having a roll of backing member with disposable stethoscope covers disposed thereon and a second spool for receiving the spent backing member after a disposable stethoscope cover has been removed, self-contained within the cartridge. The cartridge is inserted within the dispenser so that a user may insert a stethoscope head through a window of the dispenser to attach to a disposable stethoscope cover. Alternatively, the cartridge or cassette may be comprised of disposable instrument covers so that a user may insert the instrument near or through the window of the dispenser for application of the instrument cover directly to the instrument. The kit may further include a proximity sensor for detecting a user.

The measured winding diameter values Ds1(d) corresponding to the conveying distance d are measured by measuring the diameter of the printing medium M wound on the unwinding roll 71 by the diameter sensor 77. The measured winding diameter values Ds1(d) are smoothed by the low-pass filter to extract the smoothed winding diameter values Ds_avg1(d). By calculating the value of the diameter based on the initial diameter value Do1, the thickness value Tm and the conveying distance of the printing medium M, the calculated winding diameter values Dc1(d) are calculated. An operation of calculating the difference Ddiff1(d) between the calculated winding diameter value Dc1(d) and the smoothed winding diameter value Ds_avg1(d) while compensating for the delay by the low-pass filter is performed whereby the differences Ddiff1(d) are calculated. The calculated winding diameter value Dc1(d) are corrected by the differences Ddiff1(d).

Rewinder for making paper logs, including a winding station with a first winding roller and a second winding roller delimiting a nip and a third winding roller downstream of the other rollers. The rewinder includes optical elements for detecting, at a predetermined time, an actual position of each log in said winding station and an electronic unit connected to the optical elements and programmed to compare the actual position with a theoretical position of the log at the time, the electronic unit being connected to at least one motor driving the rollers and programmed to modify the speed of the at least one motor when a deviation between the actual and theoretical positions exceeds a pre-established value, the electronic unit being also programmed to operate said optical elements at the time.

A mounting apparatus includes: a bonding stage; a base; a mounting head for performing a temporary press-attachment process in which semiconductor chips are suction-held and temporarily press-attached to a mounted object and a final press-attachment process in which the temporarily press-attached semiconductor chips are finally press-attached; a film arrangement mechanism arranged on the bonding stage or the base; and a controller which controls driving of the mounting head and the film arrangement mechanism. The film arrangement mechanism includes: a film feed-out mechanism which has a pair of feed rollers with a cover film extended there-between and successively feeds out a new cover film; and a film movement mechanism which moves the cover film in a horizontal direction with respect to a substrate.

The invention relates to an automated device to transfer and thread a bearing band (3) on a fixed reel (2) from a removable reel (1), said reels (1,2) being joined and integral to corresponding shafts (4,5), wherein said device comprises a folding arm (6) adapted to perform a translational movement, which in turn comprises a hook (7) and a carriage (8) configured to move the arm (6) horizontally between both reels (1,2), and wherein the device further comprises a tensioning roller (10) adapted to move vertically through an intermediate column (11), such that it allows the first bearing band (3) to be transferred between reels (1,2) automatically in order to finally wind a second bearing band (12) with the first bearing band (3) onto the removable reel (1) automatically and simultaneously.

A roller device for guiding a flexible substrate is described. The roller device includes a support surface for contacting the flexible substrate, the support surface having a coating comprising an electronegative polymer. Further, a vacuum processing apparatus for processing a flexible substrate including the roller device and a method of processing a flexible substrate in the vacuum processing apparatus is described.