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
  • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
  • B65H19/102—Preparing the leading end of the replacement web before splicing operation; Adhesive arrangements on leading end of replacement web; Tabs and adhesive tapes for splicing
• • 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
  • B65H2301/40—Type of handling process
  • B65H2301/41—Winding, unwinding
  • B65H2301/414—Winding
  • B65H2301/4148—Winding slitting
• • 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
  • B65H2301/40—Type of handling process
  • B65H2301/46—Splicing
  • B65H2301/4606—Preparing leading edge for splicing
  • B65H2301/4607—Preparing leading edge for splicing by adhesive tape
• • 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
  • B65H2301/515—Cutting handled material
  • B65H2301/5151—Cutting handled material transversally to feeding direction
  • B65H2301/51512—Cutting handled material transversally to feeding direction using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the handled material
• • 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
  • B65H2301/515—Cutting handled material
  • B65H2301/5152—Cutting partially, e.g. perforating
• • 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
  • B65H2301/515—Cutting handled material
  • B65H2301/5153—Details of cutting means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/10—Handled articles or webs
  • B65H2701/17—Nature of material
  • B65H2701/172—Composite material
  • B65H2701/1722—Composite material including layer with adhesive properties
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/10—Handled articles or webs
  • B65H2701/17—Nature of material
  • B65H2701/172—Composite material
  • B65H2701/1726—Composite material including detachable components
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/30—Handled filamentary material
  • B65H2701/37—Tapes
  • B65H2701/377—Adhesive tape
  • B65H2701/3772—Double-sided

Definitions

• the invention relates to a device for severing an adhesive tape and method for preparing a splice according to the preamble of claims 1 or 13.
• Such devices are used, for example, but by no means exclusively, in devices in which the paper rolls are prepared for a roll change in a web-fed rotary printing press.
• roll preparation the web start of the new roll is fixed to the circumference of the paper roll with special double-sided adhesive tapes.
• An apparatus for preparing a material web, in particular a paper web, for the roll change with a device for conveying and severing an adhesive tape is described for example in WO 98 52 857 A1.
• the two-sided adhesive tape can be unwound and the masking tape adhering to one side can be removed before the actual adhesive zone.
• an adjustably arranged blade is provided, the cutting edge of which can be brought into engagement with the adhesive tape across the longitudinal axis of the adhesive tape, so that the adhesive tape is severed when the blade is sufficiently advanced.
• the cover tape is already removed from the adhesive tape so early in the device that it no longer rests on the adhesive tape when cutting the adhesive tape.
• the adhesive layers can be easily contaminated, for example by the application of dust, so that when attaching the cut end to the next paper roll to be prepared Faults can occur.
• DE 43 15539 C2 describes a device for cutting a cover film of a laminated film material, wherein by means of a sound field, the penetration depth of a cutting tool is controlled.
• the invention has for its object to provide a device for cutting an adhesive tape and a method for preparing a splice.
• an advantage of the device is, in particular, that the cutting device for severing the adhesive tape is designed in such a way that, when the adhesive tape is severed, a connection of the masking tape still present on the adhesive tape is maintained across the cutting zone.
• the cover tape also adheres to both cut ends after the adhesive tape has been cut through, so that in particular the adhesive layer is protected by the cover tape in the area of the cut end remaining in the device.
• the cutting device is equipped with a circular blade, on the outer circumference of a cutting edge is provided.
• This circular knife rolls when cutting the tape with its cutting edge the adhesive tape and cuts in a rolling movement, the adhesive tape each corresponding to the feed across the tape.
• the cutting performance can be further increased if the circular blade is driven in rotation with a drive device, so that the cutting edge rotates not only due to the rolling movement, but in addition due to the drive power of the drive device.
• the cutting device is engaged with a defined force on the adhesive tape when the adhesive tape is severed. This cutting force is then selected such that on the one hand a secure cutting of the adhesive tape is ensured, at the same time the set cutting force is not sufficient for severing the masking tape. In terms of design, this can be achieved, for example, by the components which are brought into engagement with the adhesive tape during cutting being resiliently mounted or driven against the adhesive tape with a pneumatic pressure cylinder.
• the adhesive tape is brought to the side of the surface of the splice to the plant, which is already open after unwinding of the tape.
• FIG. 1 is a schematically illustrated device when attaching an adhesive tape in a side view.
• FIG. 2 shows the device according to FIG. 1 after attachment of the adhesive tape in a lateral view;
• FIG. 1 is a schematically illustrated device when attaching an adhesive tape in a side view.
• FIG. 3 shows the device according to FIG. 1 during cutting of the adhesive tape in a cross-section, schematically enlarged, along the section line I-1;
• Fig. 4 shows the device of FIG. 1 in a detail shown enlarged in front view.
• the device 01 shown in FIG. 1 serves for the attachment of adhesive tape sections
• a splice 03 for example, a roll of material, in particular a paper roll.
• a roll holder 04 in which a roll, not shown, of a wound-up adhesive tape 06 can be stored.
• the adhesive tape 06 can be unwound from the roll holder 04 and conveyed over the deflection rollers 07 by a cutting device 08 to an adhesive zone 09.
• the adhesive tape 06 is adhesively formed on two sides, wherein the adhesive layer on the side 11 of the adhesive tape 06 is covered by a masking tape 12, which is removed after the application of the adhesive tape 06 at the adhesive joint 03.
• the opposite side 13 of the adhesive tape 06 is open after the unwinding of the adhesive tape 06 from the roll holder 04.
• the device 01 is mounted in total on a transverse to the splice 03 in the direction of the movement arrow 14 movable, not shown slide.
• the adhesive tape 06 for attachment of the adhesive tape 06 to the splice 03, the adhesive tape 06 at the beginning of the splice 03 by employment of a pressure roller 16 with the surface of the splice
• the adhesive tape 06 is then continuously adhered to the splice 03, wherein the cover strip 12 after attachment of the adhesive tape 06 is deducted from the adhesive tape 06 by using a guide roller 17 and a corresponding to the feed of the device 01 driven take-up device 18.
• the tape portion 02 can be cut to length in the correct length of the adhesive tape 06, the device 01 before reaching the end of the splice 03 at a certain distance z. B. stopped, but also in the process of the device 01 can be severed.
• This distance corresponds exactly to the length of the adhesive tape 06 between the adhesive zone 09 and a cutting zone 19, in which the adhesive tape 06 can be separated by engagement of a circular blade 21.
• Fig. 1 illustrates the device 01 in the state in which the circular blade 21 is brought into engagement by means of the adhesive tape 06.
• the circular blade 21 opposite a support element 22 is provided in the cutting device 08, so that upon delivery of the circular blade 21, the tape 06 between the circular blade 21 and the support element 22 extends.
• the adhesive tape 06 is severed completely and straight (90 °), whereas on the cover 12, a material connection is maintained across the cutting zone 19.
• the device 01 is experienced as long as in the direction of the movement arrow 14 until the tape portion 02 is completely attached to the splice 03.
• Fig. 2 illustrates the device 01 after reaching the end of the splice 03.
• the pressure roller 16 has been turned off, so that the tape portion 02 is completely separated from the adhesive tape 06.
• the cut ends 23 and 24 formed by use of the cutter 08 are completely separated from each other. From the tape portion 02, the cover tape 12 is completely removed, whereas the cut end 24 of the adhesive tape 06 continues to abut the cover strip 12, so that the adhesive layer is protected.
• the position of the cutting end 24 after lifting the Pressure roller 16 is precisely determined so that the cut end 24 can be positioned relatively accurately when attaching the adhesive tape 06 to a next splice 03. In addition, the cut end 24 is accurately guided by adhesion to the cover strip 12.
• the function of the cutting device 08 when severing the multilayer adhesive tape 06 is shown schematically in FIG.
• the circular blade 21 is shown schematically in four steps, wherein the circular blade 21 is shown in phantom in steps two to four.
• the circular blade 21 is first employed for severing the adhesive tape 06 according to the movement arrow 26 to the support element 22, so that the peripheral cutting edge 27 of the circular blade 21 rests on the surface of the support element 22.
• the circular blade 21 in a linear feed movement in the direction of the movement arrow 28 at right angles or obliquely to the longitudinal axis (dash-dotted lines in Fig. 4) of the adhesive tape 06, wherein the cutting edge 27 rotates according to the movement arrow 29 about the pivot point 31 of the circular blade 21.
• the inclination of the direction of movement 28 as a function of the feed rates of adhesive tape 06 and circular blade 21 is set such that a straight cut is made transversely to the longitudinal direction of the adhesive tape 06.
• the circular blade 21 is z. B. resiliently and is pressed with a defined (preselectable) force against the support element 22.
• This set cutting force is just chosen so that when rolling the circular blade 21 on the tape 06 through the cutting edge 27 all layers of the adhesive tape 06 are severed, whereas a compound of the cover strip 12 is maintained across the running in the image plane cutting zone 19 away. This is achieved in that the set pressure prevents the circular blade 21 and the cutting resistance of the cover strip 12, a transection of the cover strip 12.
• the circular blade 21 has completely severed the adhesive tape 06, it becomes, according to the movement arrow 32 parked and moved back according to the movement arrow 33 in its basic position, not shown.
• the device 01 with the adhesive tape 06, the guide rollers 07, the cutter 08 and the splice 03 is shown in front view.
• the circular blade 21 is made from the basic position of the support member 22 and moved according to the movement arrow 28 across the tape 06 until the tape 06 is completely severed. After reaching this end position on the left side of the support element 22, the circular blade 21 is lifted again and moved back to the basic position.

Landscapes

• Adhesive Tape Dispensing Devices (AREA)
• Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
• Replacement Of Web Rolls (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7692365

Family Applications (1)

Country Status (4)

Families Citing this family (2)

Family Cites Families (9)

• 2001
  • 2001-07-19 DE DE10135180A patent/DE10135180A1/de not_active Withdrawn
• 2002
  • 2002-07-16 WO PCT/DE2002/002598 patent/WO2003008310A1/fr not_active Application Discontinuation
  • 2002-07-16 AT AT02754367T patent/ATE312039T1/de not_active IP Right Cessation
  • 2002-07-16 DE DE50205210T patent/DE50205210D1/de not_active Expired - Fee Related
  • 2002-07-16 EP EP02754367A patent/EP1406827B1/fr not_active Expired - Lifetime

Non-Patent Citations (1)

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