摘要:
A web winding apparatus and a method of operating the apparatus include a turret assembly, a core loading apparatus, and a core stripping apparatus. The turret assembly supports rotatably driven mandrels for engaging hollow cores upon which a paper web is wound. Each mandrel is driven in a closed mandrel path, which can be non-circular. The core loading apparatus conveys cores onto the mandrels during movement of the mandrels along the core loading segment of the closed mandrel path, and the core stripping apparatus removes each web wound core from its respective mandrel during movement of the mandrel along the core stripping segment of the closed mandrel path. The turret assembly can be rotated continuously, and the sheet count per wound log can be changed as the turret assembly is rotating. The apparatus can also include a mandrel having a deformable core engaging member.
摘要:
1. IN WEB-WINDING APPARATUS EQUIPPED WITH A FRAME, (A) A ROLL ROTATABLY SUPPORTED ON SAID FRAME, MEANS FOR ROTATING SAID ROLL, MEANS FOR FEEDING A WEB ONTO SAID ROLL FOR TRAVEL THEREWITH WHILE IN PARTIAL WRAPPING ENGAGEMENT WITH SAID ROLL, (B) SAID FRAME ALSO BEING EQUIPPED WITH A PLURALITY OF MANDRELS, MEANS FOR MOVING SAID MANDRELS SEQUENTIALLY THROUGH A PATH IN CLOSE PROXIMITY TO THE SURFACE OF SAID ROLL, THE IMPROVEMENT COMPRISING: (C) MEANS FOR TRANSVERSELY SEVERING SAID WEB TO PROVIDE A FREE LEADING EDGE ON SAID WEB FOR APPROACHING A MANDREL ON WHICH SAID WEB IS TO BE WOUND IN SAID PATH, (AND) (D) PIN MEANS EXTENSIBLY MOUNTED ON SAID ROLL FOR MAINTAINING A WEB PORTION SPACED FROM SAID EDGE IN CONTACT WITH SAID ROLL, AND PUSHER MEANS EXTENSIBLY MOUNTED ON SAID ROLL TO URGE SAID MAINTAINED WEB PORTION AGAINST AN ADJACENT MANDREL.
摘要:
A bedroll is disclosed having openings in its surface communicating with a partial vacuum for positively holding a web to the bedroll so as to control it in the event of a breakout. The arrangement and use of such a bedroll with a turret winder and a brokechute, and the advantages of this apparatus in connection with web winding in preventing and handling breakouts and in accomplishing reliable transfer of the lead end of the web to a new core, are disclosed.
摘要:
A rewinder includes a bedroll and first and second turrets. Each turret includes a plurality of rotatable mandrels. The bedroll includes a web-transferring mechanism for transferring a web on the bedroll to a mandrel at first and second rotational positions of the bedroll. The first turret is rotatable to successively move each of its mandrels to a first web-transferring position adjacent the first rotational position of the bedroll. The second turret is rotatable to successively move each of its mandrels to a second web-transferring position adjacent the second rotational position of the bedroll. After a web is transferred to a mandrel, the mandrel rotates to wind the web into a log. As the web is being wound on a mandrel of one of the turrets, a completed log on the other turret is removed.
摘要:
A web winding apparatus and a method of operating the apparatus include a turret assembly, a core loading apparatus, and a core stripping apparatus. The turret assembly supports rotatably driven mandrels for engaging hollow cores upon which a paper web is wound. Each mandrel is driven in a closed mandrel path, which can be non-circular. The core loading apparatus conveys cores onto the mandrels during movement of the mandrels along the core loading segment of the closed mandrel path, and the core stripping apparatus removes each web wound core from its respective mandrel during movement of the mandrel along the core stripping segment of the closed mandrel path. The turret assembly can be rotated continuously, and the sheet count per wound log can be changed as the turret assembly is rotating. The apparatus can also include a mandrel having a deformable core engaging member.
摘要:
An apparatus for winding a web of sheet material into a roll on a core includes a pair of rollers and a source of vacuum for drawing a vacuum in the space between the rollers. The vacuum holds the core in the space between the rollers. The core is rotated by the rollers, and the web is wound on the rotating core.
摘要:
There is disclosed a fully automatic winding device for winding material in ribbon or strip form, particularly strips or ribbons made of metal foil for producing tightly wound rolls of such material. The device comprises at least one take-up spindle and at least one take-up spool for winding the material thereupon. The device further comprises a pressure roller for pressing already wound-up material against the underlying windings of the material or against the spool itself. The take-up spindle is journaled freely rotatable and floating. It is driven by the pressure roller which in turn is driven and serves to pull the material to be wound up from a supply spool.
摘要:
Several small diameter short width rolls (124) of plastic film (108) are wound from a larger width and length of plastic web in a continuous manner. The disclosed apparatus slits the larger width plastic web into several narrower width plastic webs, positions the slit webs on a single large diameter winding drum (110) and then winds each narrower width web at a separate winding turret (112, 114). At each turret, the plastic web is rolled around a first mandrel until the roll achieves the desired size. Then, a second mandrel contacts, the plastic web and the plastic web is severed between the first mandrel and second mandrel and attached to a second mandrel to be rolled into a roll of desired length. The process is repeated at each turret such that the several plastic webs are simultaneously wound in a continuous fashion.