摘要:
A method and apparatus of forming coreless rolls of pressure sensitive adhesive tape involves the use of a mandrel assembly having a specific circumferential tape supporting segment thereon for winding tape. The circumferential tape supporting segment has a tape engaging surface portion that, in a radial orientation, is compressible yet sufficiently stiff to support the tape as it is successively wound about the mandrel to form a tape roll, and that is sufficiently pliant to permit ready axial removal of a wound tape roll from the shaft. The innermost wrap of pressure sensitive adhesive tape about the mandrel is masked by an adhesive liner. That liner is formed from one portion of a liner/tab segment which had been applied to the tape previously, and prior to winding, the tape is severed, and the remainder of that liner/tab forms an end tab on the outermost end of the previously formed coreless tape roll.
摘要:
An apparatus and method for making coreless paper rolls includes a slitting machine having a winding arbor having a plurality of two-way air valves spaced over the tube wall of the winding arbor and being connected to a control valve for supplying compressed air or vacuum to the arbor, and a cutter design is provided.
摘要:
A string emanating from a packaging machine is arranged in a slot by means of a feed inlet and placed in a winding shaft (12). This placement is assisted by the use of positioning brushes (4). After the initial introduction, winding up takes place upon rotation of the winding shaft and upon further engagement of the string in the slot (14) in the winding shaft. The winding shaft is provided on a carrying disc (5) and said carrying disc is also arranged so as to be rotatable. During the first stage, the section of the string emanating from the supply path is pulled with constant force. After the string has been separated from the remaining material, the winding is carried out. Subsequently, the rotating shaft with the string, through rotation of the carrying disc, reaches a next position in which pressing the reel and thus adhesion of the reel end moves the winding shaft out of the reel. The reel has already been checked prior to entering the winding device to determine whether it has to be inspected.
摘要:
A waste sheet part forming apparatus forms a waste sheet part in a weblike heat transfer recording sheet supplied from a supplying apparatus. A slit apparatus cuts the recording sheet in the longitudinal direction into plural columns, and thereafter the cut recording sheets are sent to a winding apparatus. Sheet rolls formed in the winding portion in the winding apparatus are sent to a discharging portion and cores are supplied to the winding portion. The waste sheet extending between the winding portion and the discharging portion is cut by a cutting portion. An adhesive tape on the upstream side of the waste sheet is attached to a core in the winding portion and an adhesive tape on the downstream side is attached to the outer periphery of the sheet roll in the discharging portion.
摘要:
For pushing packages (7) from a winding mandrel (4) of a takeup apparatus (1), an ejector is provided, which has a piston arranged for reciprocating movement in a cylinder (8) by supplying a pressure medium. The piston is a magnetic piston, whose polarity is opposite to that of at least one magnet connected to a push unit (9). The push unit (9) is displaceable substantially along the cylinder (8) with the movement of the piston.
摘要:
A sheet roll producing apparatus for producing sheet rolls by winding a heat transfer recording sheet around the outer peripheries of a plurality of cores. A supplying apparatus supplies the sheet; a waste sheet part forming apparatus cuts the sheet between corresponding rolls to form cut ends and interposes between the ends a non-adhesive waste sheet and a pair of adhesive tapes attached to both ends of waste sheet where each tape has an adhesive portion facing the waste sheet, a portion exposed to the outside, and a portion attached to the corresponding cut end; and a winding apparatus winds the cores to form the rolls, cuts the waste sheet, and holds the formed rolls before discharge the formed rolls.
摘要:
A method and apparatus of forming coreless rolls of pressure sensitive adhesive tape involves the use of a mandrel assembly having a specific circumferential tape supporting segment thereon for winding tape. The circumferential tape supporting segment has a tape engaging surface portion that, in a radial orientation, is compressible yet sufficiently stiff to support the tape as it is successively wound about the mandrel to form a tape roll, and that is sufficiently pliant to permit ready axial removal of a wound tape roll from the shaft. The innermost wrap of pressure sensitive adhesive tape about the mandrel is masked by an adhesive liner. That liner is formed from one portion of a liner/tab segment which had been applied to the tape previously, and prior to winding, the tape is severed, and the remainder of that liner/tab forms an end tab on the outermost end of the previously formed coreless tape roll.
摘要:
A coil stripping apparatus that strips a coil of thin flexible material from a drum of coiling machine, comprises a non-rotating pusher plate slidably movable along the length of the drum, as powered by a hydraulically actuated motor, for effecting the transport of the coil along the drum. A stripper member having opposed first and second finger members, with the first and second finger members each having a base portion and a projecting portion, is rotatably mounted with respect to the non-rotating pusher plate for co-rotation with the drum about the longitudinal axis. The stripper member is in contact with one or the other of the first and second drive surfaces so as to be slidably movable along the length of the drum by the non-rotating pusher plate. The projecting portions are shaped and dimensioned to enter respective co-operating substantially longitudinally disposed first and second generally opposed slots in the drum, thereby to permit the stripper member to engage the entire radius of the coil at two generally opposed orientations and so as to permit the coil to be subsequently moved longitudinally along the drum and removed from the drum.
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:
An apparatus (10) for folding sheets (17) and corresponding method, comprising at least a conditioning body (11), at least a folding unit (13) and at least an extraction mean (12) suitable to fold sheets (17) in sequence of variable formats, maintaining high cadences and at the same time simplifying the structure for the maintenance operations and/or format-changes.