| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 242521000 | With tearing or breaking | 24 |
| 20080272223 | Rewinding machine for rewinding and forming a paper roll - An improved rewinding machine for rewinding and forming a paper roll comprising three rollers ( | 11-06-2008 |
| 20080283656 | Rewinding Machine, for the Production of Logs of Web Material and Logs Obtained - The rewinding machine comprises: a winding system ( | 11-20-2008 |
| 20080290207 | Method and Machine for the Production of Logs of Web Material - The rewinding machine comprises: a winding system ( | 11-27-2008 |
| 20090001210 | Method and Machine for the Production of Logs of Wound Web Material - A rewinding machine is described including: a path for feeding the web material towards a winding system; interruption members to interrupt the web material at the end of winding of a log; a core insertion channel, defined by a rolling surface and a movable member; a core feeder to insert winding cores in succession in the channel; an electrostatic device positioned along the channel to electrostatically charge the winding cores and/or the web material thus causing, due to the electrostatic charges, reciprocal adhesion of the core and initial free edge of the web material obtained by interruption of the material at the end of winding of each log. | 01-01-2009 |
| 20090039195 | METHOD FOR CAUSING PAPER WEBS TO TEAR OFF WITHIN REWINDING MACHINES - Apparatus for causing paper webs to tear off within rewinding machines, the web ( | 02-12-2009 |
| 20090272835 | Method and Machine for Forming Logs of Web Material, with a Mechanical Device for Forming the Initial Turn of the Logs - The rewinding machine includes a winding unit; a feed path of a web material; a separator device to sever the web material upon completion of winding each log; an insertion path of the winding cores towards the winding unit; a movable mechanical member to facilitate forming a first turn of web material around each winding core inserted in the insertion path. | 11-05-2009 |
| 20100025515 | Method and device for gluing the free edge of a log of web material in a rewinding machine - A rewinding machine for producing logs of web material is described which includes a winding unit; a feed path of the web material towards the winding unit; a severing device to sever the web material upon completion of winding each log; and a glue dispenser to apply a glue to the web material. The machine also includes a diverter member disposed and controlled to temporarily divert the web material towards the glue dispenser. | 02-04-2010 |
| 20100163665 | WINDING GROUP AND METHOD FOR WINDING PAPER AROUND A CORE TO MAKE A LOG - A winding group for winding paper around a core to make a log comprising in an upstream position, means for transporting and introducing the core into a channel defined at the top by an upper winding roller, supplied from above with the paper directed towards the channel, and at the bottom by a cradle member associated downstream with a lower winding roller, the winding group comprising a third oscillating roller arranged above the lower winding roller, the three rollers cooperating downstream of the channel to wind the paper around the core to make the log, further being provided cyclic means for tearing the paper moving forward on the upper winding roller to identify a final edge and an initial edge as well as means to cause the initial edge to wind on the core introduced into the channel, the cyclic means for tearing the paper comprising a rod member rotating around a pin and provided with a head for cyclic cooperation with the upper winding roller for tearing the paper, wherein the head at least in proximity to the upper winding roller has a greater peripheral speed with respect to that of the upper winding roller to tear the paper upstream of the head. | 07-01-2010 |
| 20100163666 | WINDING GROUP AND METHOD FOR WINDING PAPER AROUND A CORE TO MAKE A LOG - A winding group for winding paper around a core to make a log which has in an upstream position, means for supplying glue onto the core, means for transporting and inserting the core provided with glue in a channel defined at the top by an upper winding roller, supplied from above with the paper directed towards the channel, and at the bottom by a cradle member associated downstream with a lower winding roller, the winding group comprising a third oscillating roller arranged above the lower winding roller, the three rollers having axes parallel to one another and perpendicular to the forward movement of the paper and cooperating with one another downstream of the channel to wind the paper around the core to obtain the log, further being provided cyclic means for tearing the paper moving forward on the upper winding roller, in which the means for supplying glue onto the core comprise means for depositing a plurality of circle arcs of glue on at least one outer portion of the core. | 07-01-2010 |
| 20100187347 | REWINDER AND RELATIVE METHOD FOR WINDING PAPER AROUND A CORE FOR MAKING A LOG - A rewinder ( | 07-29-2010 |
| 20100237179 | REWINDING METHOD AND REWINDING MACHINE THAT CARRIES OUT THIS METHOD - Rewinding method and rewinding machine of a paper web ( | 09-23-2010 |
| 20100294875 | Winding device and method for tearing off web material by planetary-roller - A winding device with a planetary-roller tear-off mechanism is disclosed, comprising a first winding roller which is driven to rotate in a predetermined direction and a plurality of core support plates that are arranged at a predetermined distance below the first winding roller, wherein an interval between the core support plates and the first winding roller is defined as a curved channel. A web material is conveyed through the curved channel to a winding zone to be wound as a roll. The planetary-roller tear-off mechanism includes a plurality of rotary arms and a plurality of planetary rollers. Each rotary arm is set at a predetermined location below the first winding roller, and having a driving end and a free end. Each planetary roller is rotatable, and mounted to the free end of the respective rotary arm. When the free end of the rotary arm is driven to rotate to a position facing a circumferential surface of the first winding roller, the web material is subjected to a drag force acting thereon to break the web material. | 11-25-2010 |
| 20110017859 | HYBRID WINDER - 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. | 01-27-2011 |
| 20110017860 | PROCESS FOR WINDING A WEB MATERIAL - 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. | 01-27-2011 |
| 20110133015 | REWINDING MACHINE AND WINDING METHOD - The rewinding machine includes a weakening device for weakening the web material along a substantially transverse weakening line, along which the web material is severed at the end of the winding of a log. The weakening device is controlled so as to generate the weakening line in a manner synchronized with the completion of winding of the log. | 06-09-2011 |
| 20110309184 | METHOD AND STRUCTURE FOR SEPARATING THE WEB MATERIAL IN A WINDING MACHINE - Disclosed are a method and a structure for separating the web material in a winding machine. The winding machine includes an upper winding roller and a separation mechanism arranged at a location close to and below the upper winding roller. The separation mechanism includes a pivot shaft having an outer circumferential surface and at least one pinch arm having a connecting end coupled to the outer circumferential surface of the pivot shaft and a web engagement end extending outward from the outer circumferential surface of the pivot shaft. When the pinch arm is driven by a driving mechanism to rotate the web engagement end of the pinch arm to an engagement position where the web engagement end opposes the upper winding roller, the web engagement end of the pinch arm sucks and holds or guides a web material passing therethrough, whereby the web material is subjected to a pulling force induced by a roll of paper formed in a winding nip to tear and thus separate. | 12-22-2011 |
| 20110309185 | METHOD AND STRUCTURE FOR SEPARATING THE WEB MATERIAL IN A WINDING MACHINE - Disclosed are a method and a structure for separating the web material in a winding machine. The winding machine includes an upper winding roller and a separation mechanism arranged at a location close to and below the upper winding roller. The separation mechanism includes a pivot shaft having an outer circumferential surface and at least one pinch arm having a connecting end coupled to the outer circumferential surface of the pivot shaft and a web engagement end extending outward from the outer circumferential surface of the pivot shaft. When the pinch arm is driven by a driving mechanism to rotate the web engagement end of the pinch arm to an engagement position where the web engagement end opposes the upper winding roller, the web engagement end of the pinch arm sucks and holds or guides a web material passing therethrough, whereby the web material is subjected to a pulling force induced by a roll of paper formed in a winding nip to tear and thus separate. | 12-22-2011 |
| 20120085856 | APPARATUS AND METHOD FOR EXCHANGE OF CORES IN A WINDING MACHINE - A method and an apparatus for exchange of cores in a machine for winding a continuous layer of paper ( | 04-12-2012 |
| 20120153068 | APPARATUS FOR CAUSING PAPER WEBS TO TEAR OFF WITHIN REWINDING MACHINES - Apparatus for causing paper webs to tear off within rewinding machines, the web ( | 06-21-2012 |
| 20130020427 | REWINDING MACHINE AND WINDING METHOD - The rewinding machine includes a first winding roller, around which the web material is guided, and defining at least in part a winding cradle; a support surface of the winding cores arranged to receive a winding core and to convey the core toward the winding cradle, the support surface defining with the first winding roller a feed channel of winding cores; a severing member of the web material, which can be inserted in the channel to sever the web material, the severing member interacting with the web material to cause severing thereof; a motor for controlling the severing member, the motor controlling the severing member modifying the speed of the severing member when it is positioned inside the channel. | 01-24-2013 |
| 20140326820 | IMPROVED REWIND SYSTEM - A winder for winding continuous webs or interleaved web segments having a machine direction and a cross-machine direction coplanar and orthogonal thereto into rolls is disclosed. The winder provides a plurality of winding spindles orbiting about a winding turret axis and a plurality of surface contact rolls cooperatively associated with a respective winding spindle. Each surface contact roll is capable of cooperative engagement with the respective winding spindle when the web material is disposed therebetween. The longitudinal axis of each surface contact roll is adjustable relative to the axis generally parallel to the winding turret axis when the web material is received by the winding spindle cooperatively associated thereto. | 11-06-2014 |
| 20150129708 | REWINDING MACHINE - A rewinding machine includes a drawing assembly ( | 05-14-2015 |
| 20160075530 | REWINDING MACHINE AND METHOD FOR THE PRODUCTION OF ROLLS OF WEB MATERIAL - A rewinding machine is described with a winding cradle defined by three rollers and including a fourth winding roller defining with the first winding roller a cradle in which the web material is pushed by a winding core to the beginning of each winding cycle, to cause severing of the web material without the need for controlled mechanical parts. | 03-17-2016 |
| 20170233208 | REWINDING MACHINE AND METHOD FOR PRODUCING ROLLS OF WEB MATERIAL | 08-17-2017 |
