Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H19/00—Changing the web roll
  • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/50—Auxiliary process performed during handling process
  • B65H2301/51—Modifying a characteristic of handled material
  • B65H2301/513—Modifying electric properties
  • B65H2301/5133—Removing electrostatic charge

Definitions

• the invention relates to a cutting and winding device device for film strips, in the connection to a longitudinal cutting station for cutting foil strips from egg ner path which is essentially in a horizontal row arranged film strips to a winding or Winding unit are guided. It also concerns a ver drive to the bobbin or winding core change during Winding up the foil strips.
• DE 34 14 636 is a method for changing the bobbin, in which the amount of waste, which when winding several rows of winding units, which are arranged one behind the other should be reduced.
• DE 34 18 741 discloses a cutting and winding device known, in each of which the separate film strips on cores firmly connected to a winding shaft are and with four winding shafts within one Winding stars are present, which are axially displaceable and a demounting device and a mounting device can be supplied, which at the same time the dismantling a winding shaft of winding cores and the assembly of a concerned another shaft with new winding cores.
• From the DE 23 46 330 is a slitting and winding machine for Foil strips known in the connection to a longitudinal cutting station for cutting web strips from a Bahn a separation station to separate each be Adjacent web strips to separate winding axes can be seen, with alignment in longitudinal grooves of each winding axis combs with radial alignment edges arranged to be adjustable which position the winding cores.
• a corresponding device is known at which follows a longitudinal cutting station for cutting from foil strips from a web the foils on individual ones Winding cores are guided and each winding core a drive roller resting on the circumference of the roll assigned.
• winding devices for cut webs fen known in which the strips have a so-called Spreading combs are held, these are pins that hold the foils deflect strips in different directions and being the strips with a device according to the above DE 23 65 606 are wound up.
• a 65 cm wide magnetic tape track cut lengthways into 3.81 mm wide strips which open Winding cores must be wound up, about 170 Tape wrap glued at the end and removed from the winding axis are taken, after which these winding axles are newly with cores be populated, on which then the beginnings of the film strip fen must be attached.
• Another operation is created by the fact that the finished Tape wraps for transport, if necessary with interleaving foils provided and stacked in larger containers need to be sent.
• the device described above takes up a considerable amount of space. Therefore, the task was to find a winding device of the generic type mentioned above, which - is compact - Significantly reduced changeover times when changing laps - supplies wrapping packages that are largely ready for dispatch.
• Figure 1 shows schematically the side view of a be preferred embodiment of the device according to the invention tion.
• the from a (not shown) casting or Extrusion device coming film web (1) is in Direction of the arrow to be described further below benden cross cutting device (2) and below via a loop puller (8) to compensate for web voltage fluctuations led.
• the following is the Web by means of a cutting knife arrangement (9), whose Axis arranged perpendicular to the film web direction or a winder into narrow strips (4) cut lengthways.
• Such arrangements are known from numerous publications, for example from DE 24 05 849 or DE 37 01 716 of the Applicant where in particular arrangements for cutting described by magnetic tape tracks in film strips are.
• the cut strips are attached between one pivotable pressure roller (6), the width of which is at least is as large as the entire width of the film web as well a guide suction comb (3) passed through.
• the suction comb consists ( Figure 2) of a number perpendicular arranged segments (5), the number and width of which The number and width of the film strips correspond to and which can be acted upon with negative pressure.
• the segments are each arranged at a distance from one another.
• the suction comb is shifted laterally in the direction of travel of the film or pivotable.
• Adjacent to the suction comb (3) is located in Laufrich direction of the strips a vertical to the film plane as well cutting wheel (7) that can be moved across the running direction or a traversing cutting knife.
• the winding of the film strips (4) is through brings about a rotatable winder (10), consisting of at least two arms (12, 12 '), on whose free ends each act as a winding axis drivable shaft (13, 13 ') is located.
• a rotatable winder (10) consisting of at least two arms (12, 12 '), on whose free ends each act as a winding axis drivable shaft (13, 13 ') is located.
• wrap shafts are, for example, flanged coils or flangeless Winding cores (14, 14 ') can be clamped.
• Preferred for wrapping according to the device according to the invention are flangeless Winding cores and particularly preferably stackable winding cores according to DE 24 48 853, which are stacked on top of one another be stretched on a winding shaft that the winding or the winding surfaces practically without any gaps lie against each other.
• Between the winding cores can thin circular foils (21) consisting of intermediate layers
• the aforementioned cross-cutting device (2) is used for the production of a defined length of tape, with a Tape length with the following with a certain Glue is provided.
• this exists Device in a preferred embodiment from one three-part cutting table.
• This one has two fixed ones parallel support rails (16, 17) across the Foil running direction as well as a ver Narrow, slidable support rail (18). Between the two columns of the rails (16, 17) and the vertical sliding rail (18) can have two cutting wheels (15, 15 ′) or cutting knife blades for cross cutting immerse in the track (1).
• an adhesive tape (22) for connecting of the two separate web pieces is preferably one used tape provided with an adhesive surface, its both lateral ends (19, 19 ′) from the adhesive surface (20) turned away at an obtuse angle and free of glue are ( Figure 4).
• the cutting table can be made from there are only two support rails, with one there between located gap, with a rail after separating the web horizontally by the width of the rail (18) is shifted and subsequently the adhesive connection is established.
• the adhesive tape (22) can also only be an adhesive have free kinked end.
• the roller (6) is swiveled away from the suction comb, whereupon this with the held strip ends (4) the winding shaft (13 ') with the cores (14') except for one small distance is pivoted so that it is in the reaches the position shown in dashed lines in FIG.
• the empty cores (14 ') can also be used beforehand has been moistened by an appropriate device be.
• the winding shaft (13 ') is only slowly then fast ler driven and the winding process begins while at the same time the negative pressure from the segments (5) wegge is taken.
• the suction comb is either sudden or gradually increasing with the winding diameter (23 ′) of the newly created tape roll swiveled away and arrives back to its original position ( Figure 1). While this winding process, which takes place at high speed, about up to 1000 m / min. can be done can be on the arm (12) of the device (10) all finished tape laps (23) completely removed as a unit and packaged ready for dispatch are, for example in a packaging unit according to DE-PS 26 55 254 or according to DE-GM 87 16 579 and 87 16 580 or 88 03 062 of the applicant. Then will the shaft (13) is reloaded with empty winding cores.
• a defined tape length is the Foil web through the cross cutting already described direction (2) made. This is done by adding in be correct intervals the film web on this device with the cutting wheels (15, 15 ') when the web is stationary is cross-cut, then the support rail moved down and the narrow one on it Piece of tape removed in some way. Then a Adhesive tape (22) is put on and the two ends of the tape are removed connected to one another by the adhesive surface (20). Between there is a short distance between the ends of the tape, which is some Can be millimeters to a few centimeters. Reached this glue point the tape roll on the winding shaft (13 or 13 ′), the end of the tape adheres and the winding process is carried out completed. He can then as described above in a new Cycle to be continued.
• the processor can then, for example, for the purpose loading or winding magnetic tape and cassettes easily the splices with every magnetic tape winding, the so-called pancake at the protruding end of the glue point open, remove the short pieces of film (4 ′) and then the magnetic tape strips in Loader or Winder according to the introduce known prior art.

Landscapes

• Replacement Of Web Rolls (AREA)
• Winding Of Webs (AREA)

Applications Claiming Priority (2)

Publications (3)

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ID=6376409

Family Applications (1)

Country Status (4)

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Citations (3)

Family Cites Families (13)

• 1989
  • 1989-03-15 DE DE3908451A patent/DE3908451A1/de not_active Withdrawn
• 1990
  • 1990-02-27 US US07/486,003 patent/US5040737A/en not_active Expired - Fee Related
  • 1990-03-02 EP EP90104077A patent/EP0387632B1/fr not_active Expired - Lifetime
  • 1990-03-02 DE DE59005859T patent/DE59005859D1/de not_active Expired - Fee Related
  • 1990-03-15 JP JP2062829A patent/JPH02276747A/ja active Pending

Patent Citations (3)

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