US3824143A - Method of splicing of web material - Google Patents

Method of splicing of web material Download PDF

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Publication number
US3824143A
US3824143A US00219668A US21966872A US3824143A US 3824143 A US3824143 A US 3824143A US 00219668 A US00219668 A US 00219668A US 21966872 A US21966872 A US 21966872A US 3824143 A US3824143 A US 3824143A
Authority
US
United States
Prior art keywords
tape
webs
adhesive
adhesive tape
backing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00219668A
Other languages
English (en)
Inventor
R Cooper
A Aldridge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ilford Imaging UK Ltd
Original Assignee
Ilford Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ilford Ltd filed Critical Ilford Ltd
Application granted granted Critical
Publication of US3824143A publication Critical patent/US3824143A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1066—Cutting to shape joining edge surfaces only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1715—Means joining indefinite length work edge to edge
    • Y10T156/1717—Means applying adhesively secured tape to seam

Definitions

  • This invention relates to the splicing of web materials and in particular to a method useful in splicing the leading end of a fresh reel of web material to a trailing end of a web which is being fed into a web treating machine.
  • a method for laying down strips of tape wherein a tape dispensing device is traversed across the abutting ends of the two webs. As the device is moved across the ends of the webs a strip of pressure-sensitive adhesive tape is laid down over the joint and pressed down so that the strip of adhesive tape is afiixed to the ends of both the webs; thus forming a splice.
  • one strip of pressure sensitive adhesive tape is laid down adhesive face upwards under the ends of the two webs and another strip is laid down on the ends of the two webs.
  • a method of splicing the ends of two lengths of web material which are in abutment which comprises traversing across the abutted ends a tape dispensing device, which carries a roll of pressure sensitive adhesive tape wound together with a release-surface backing tape, whereby the device dispenses a strip of pressure sensitive adhesive tape so that it covers the ends of both the abutted webs along its length and at the same time separates the backing tape from the pressure sensitive adhesive tape and rolls it up, and then bringing the adhesive action of the pressure sensitive adhesive tape into effect thus splicing the two webs together.
  • the dispensing device is traversed across the abutting ends of the film webs twice, in one movement a strip of pressure sensitive adhesive tape is laid down adhesive face upwards and in the other movement a strip of pressure sensitive adhesive tape is laid down on to the abutting ends of the webs adhesive face downwards. In both these movements the backing tape is separated from the pressure sensitive adhesive tape and wound up inside the dispensing device.
  • the tape dispensing device has a plough-shaped projection and in a first traversing movement of the device across the abutted ends of the webs the plough-shaped nose of the device lifts the abutted ends and lays beneath them a strip of pressure sensitive adhesive side upwards and at the same time separates the backing tape from the adhesive tape and rolls it up internally, then holding the so-laid strip of pressure sensitive adhesive tape at the end of the first traversing movement and then in a second traversing movement, traversing the dispenser back along the line of abutment of the webs thereby laying down a strip of pressure sensitive adhesive tape on the abutted ends of the webs adhesive side downwards and at the same time separating the backing tape from the adhesive tape and rolling it up internally and in the same traversing movement pressing the strips of adhesive tape and the ends of the webs together.
  • a release-surface backing tape is meant a thin tape which carries no adhesive and to which the adhesive used on the adhesive tape will not adhere or will not adhere to very firmly, being easily separated therefrom.
  • a release surface is obtained usually by treatment of the surface with a compound such as a silicone to which most adhesives will not adhere firmly.
  • the method of the present invention by employing an apparatus which comprises a platform adapted to hold two abutted web ends, means mounted on the platform for securing the webs, a tape dispenser device which has a projecting plough-shaped nose and which has present therein a rotatable spool which has wound thereon a roll of pressure sensitive adhesive tape wound up together with a release-surface backing tape, tape dispensing rollers, means for separating the adhesive tape from the backing tape, and means for rolling-up the separated backing tape and a pressure-applying roller.
  • the apparatus also comprises means for traversing the dispenser device and means connected to both sides of the platform for holding the strip of pressure sensitive adhesive tape.
  • the dispensing device is mounted on a supporting runner fixed above the platform.
  • a take-up spool which is rotatably connected with the spool on which the adhesive tape and backing tape are wound together so that when this spool rotates when the dispensing device is traversed across the abutted webs the take-up spool also rotates and rolls up the backing tape which has been separated from the adhesive tape.
  • This contamination was undesirable in a number of manufacturing processes, for example layers could not be coated evenly over the splice area and this tended to produce elongated coating faults which extended well beyond the splice area.
  • This contamination of the surface of the tape has been eliminated by the use of a release-surface backing tape which separates the adhesive side of the tapes from the front surface of the next turn in the wound up tape.
  • adhesive tape having on one surface an adhesive the reverse surface being a release surface should not be used when the web being spliced is to be coated because this release surface would prevent the splice area being coated and thus cause also serious elongated coating faults.
  • FIG. 1 is a side sectional elevation of a tape dispenser device of use in the present invention.
  • FIG. 2 is a side elevation of the tape dispenser device having accomplished half of the first traversing movement.
  • FIG. 3 is a front elevation of the tape dispenser device in the same position as in FIG. 2.
  • FIG. 4 is a side elevation of the tape dispenser device having accomplished half of the second traversing movement.
  • FIG. 5 is a front elevation of the tape dispenser device in the same position as in FIG. 4.
  • the tape is shown as a thickness comparable with that of the web, but in practice it is likely to be considerably less.
  • the tape dispenser device 1 comprises a double wound roll of tape 2. A length 3 of this tape has been led off the roll 2. As the length of tape 3 is lead past the sharp edge of the separator bar 4 the backing tape 5 which has a release surface is separated from the pressure sensitive adhesive tape 6. The backing tape 5 is wound onto a spool 7. In this figure the device 1 is being moved in the direction indicated by the arrow. When the movement is in this direction the tape 6 is lead from the separator 4 round the dispenser roller 8 and is laid adhesive face upwards on the platform 9. (If the device were travelling in the opposite direction the tape 6 would be lead over the dispenser roller 10 and would be laid adhesive face downwards over the abutting webs. This is indicated by the dotted line which joins 4 to 10.)
  • FIG. 1 Also shown in FIG. 1 is the projecting plough 11 and the pressure roller 12, and shown diagrammatically is a drive gear 15 which is attached to the back of the spool 16 which holds the roll 2.
  • the gear 15 meshes with an idler gear 17 which meshes with a gear wheel 20 which is attached to the back of the backing tape take up spool 7.
  • the gear wheel 15 is connected to the spool 16 via a felt pad (not shown). This felt-pad constitutes a slip drive.
  • the device is loaded by packing a complete roll 2 of double wound tape on to the roll spool 16.
  • a length of tape 3 is then led from the roll 2 over the separator bar 4. This causes the backing tape 5 to separate therefrom.
  • the free end of the backing tape is then secured on to the spool 7.
  • Spool 7 is then rotated by hand to take up any slack.
  • the tape 6 is then pulled round the dispensing roller 8 and secured on to the platform by a nipping plate 18.
  • the dispenser device In operation the dispenser device is moved to the left. As the tape 6 is pulled from the roll 2 the backing tape spool 7 is driven by the rotation of the spool 16, through the gear system which comprises the gear wheels 15, 17 and 20, the gear wheel 15 being connected via the felt pad to the spool 16.
  • This gearing arrangement is so' arranged that the backing tape is always fully wound up on the spool 7.
  • the gear ratios chosen are such that when a new roll of double wound tape 2 is used the surface speeds of the tape roll 2 and the backing tape spool 7 are matched. As the tape roll 2 is used and becomes diminished in size the spool 7 is over-driven and slipping occurs at the felt pad drive. This inhibits the spool 7 from causing tension to occur in the tape 5 via tape 3.
  • FIGS. 2-5 shows diagrammatically how the adhesive tape is laid down in the first and second traversing movements.
  • a tape dispensing device 1 lays down adhesive tape 6.
  • the device 1 is mounted on a traverse bar 25 over a joining platform 9.
  • the two ends of the film webs 27 and 28 are laid over a support platform 9 and are clamped in position on the platform by pneumatic clamping bars 30 and 31 (or full length suction pads).
  • the two ends of the film webs are then trimmed by slitting cutters.
  • the webs are separated horizontally by a small gap by horizontal movement of the clamps 30 and 31. This prevents overlapping of the said two abuting webs and allows the top and bottom adhesive faces of the tape to adhere in the centre of the joint thus increasing the strength and flexibility of the joint.
  • the end of the tape 6 is then secured by a nipping plate 18.
  • the device 1 is pushed by hand over the platform 9 to the left. This is shown in FIGS. 2 and 3.
  • the plough shaped nose 11 of the device 1 actuates a trigger (not shown) and causes an arm 35 to clamp the adhesive tape 6 to the platform such that no tension is induced into the tape 6.
  • the adhesive tape 6 is laid adhesive face upwards under the abutting ends of the webs 27 and 28 and the backing tape is rolled up on spool 7 of the device 1.
  • the device 1 is then pushed by hand over the platform 9 to the right. This is shown in FIGS. 4 and 5. During this traversing movement the adhesive tape is laid down adhesive face down on to the abutting ends of the film webs 27 and 28 and the backing tape is rolled up on spool 7 in the device 1.
  • the pressure roller 12 presses the film webs and two lengths of tape into close contact.
  • the device 1 reaches the right hand side of the platform 9 (in FIG. 4) the tape 6 coming from the dispenser is then cut. Thus the two ends of the film webs have been spliced.
  • the splicing head is caused to traverse the webs by hand but it will be appreciated that the forward and reverse motion may readily be carried out automatically and automatic means may also be provided to cut ed the ends of the tape which overlap the spliced webs.
  • air jets are provided 40 and 41 (shown in FIG. 2 to 5).
  • air is forced through these jets which lifts one side of the ends of the two webs.
  • the air cushion provided by the jets is sufiicient to prevent approximately the first third of the length across the two abutted webs from falling down onto the tape.
  • lifting fingers may be provided instead of air jets. These fingers would be located in the same place as the air jets 40 and 41 would have occupied. These fingers would equally well prevent the ends of the webs 5 6 from falling on the tape as soon as the tape dispener traversing in a second direction, opposite to said first had passed between them. These fingers would be lowered direction, along said line of abutment of said ends when the dispenser device had traversed across the said roll of adhesive tape, while simultaneously sepabutted webs. arating a second length of said adhesive tape from We claim as our invention: 5 said backing strip, laying said second length of ad- 1.
  • a method of splicing the ends of two lengths of hesive tape down on top of said abutted ends with web material which are in abutment said method comthe adhesive of said tape facing downwardly in conprising the steps of: tact with said abutted ends, and pressing together fixed positioning said two lengths of material with said first and second lengths of adhesive tape and said ends thereof in abutment; 10 said abutted ends.

Landscapes

  • Replacement Of Web Rolls (AREA)
US00219668A 1971-01-27 1972-01-21 Method of splicing of web material Expired - Lifetime US3824143A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB330771 1971-01-27

Publications (1)

Publication Number Publication Date
US3824143A true US3824143A (en) 1974-07-16

Family

ID=9755849

Family Applications (1)

Application Number Title Priority Date Filing Date
US00219668A Expired - Lifetime US3824143A (en) 1971-01-27 1972-01-21 Method of splicing of web material

Country Status (7)

Country Link
US (1) US3824143A (fr)
BE (1) BE778497A (fr)
CH (1) CH547220A (fr)
DE (1) DE2203213A1 (fr)
FR (1) FR2124872A5 (fr)
GB (1) GB1328485A (fr)
IT (1) IT948314B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939026A (en) * 1972-09-25 1976-02-17 Byers Photo Equipment Process of preparing a film strip for handling
US3941646A (en) * 1972-09-25 1976-03-02 Byers Photo Equipment Company Apparatus for forming a tabbed film strip
US4078956A (en) * 1974-06-16 1978-03-14 J. Bobst & Fils, S.A. Method and apparatus for die cutting at least one blank in a sheet
US4094727A (en) * 1976-12-17 1978-06-13 Burroughs Corporation Sheet splicer
US5431767A (en) * 1993-08-27 1995-07-11 Minnesota Mining And Manufacturing Company Apparatus for applying adhesive tape
US5900090A (en) * 1997-05-19 1999-05-04 Distefano; Joseph Apparatus and method for setting a gap between strips of web
US5935371A (en) * 1997-05-19 1999-08-10 Eastman Kodak Company Apparatus and method for joining webs
US6016989A (en) * 1998-08-24 2000-01-25 Beloit Technologies, Inc. Paper web autosplicer
US20020189746A1 (en) * 2001-06-15 2002-12-19 Kuta Leroy A. Method and apparatus for automatically applying a flying splicing tape to a roll of sheet material
US20030116256A1 (en) * 2001-12-21 2003-06-26 3M Innovative Properties Company Method and apparatus for applying a splicing tape to a roll of sheet material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63162434A (ja) * 1986-12-25 1988-07-06 株式会社　東京自働機械製作所 包装材繰出し装置における包装材の交換装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939026A (en) * 1972-09-25 1976-02-17 Byers Photo Equipment Process of preparing a film strip for handling
US3941646A (en) * 1972-09-25 1976-03-02 Byers Photo Equipment Company Apparatus for forming a tabbed film strip
US4078956A (en) * 1974-06-16 1978-03-14 J. Bobst & Fils, S.A. Method and apparatus for die cutting at least one blank in a sheet
US4094727A (en) * 1976-12-17 1978-06-13 Burroughs Corporation Sheet splicer
US5431767A (en) * 1993-08-27 1995-07-11 Minnesota Mining And Manufacturing Company Apparatus for applying adhesive tape
US5900090A (en) * 1997-05-19 1999-05-04 Distefano; Joseph Apparatus and method for setting a gap between strips of web
US5935371A (en) * 1997-05-19 1999-08-10 Eastman Kodak Company Apparatus and method for joining webs
US6016989A (en) * 1998-08-24 2000-01-25 Beloit Technologies, Inc. Paper web autosplicer
US20020189746A1 (en) * 2001-06-15 2002-12-19 Kuta Leroy A. Method and apparatus for automatically applying a flying splicing tape to a roll of sheet material
US6808581B2 (en) 2001-06-15 2004-10-26 3M Innovative Properties Company Method and apparatus for automatically applying a flying splicing tape to a roll of sheet material
US20030116256A1 (en) * 2001-12-21 2003-06-26 3M Innovative Properties Company Method and apparatus for applying a splicing tape to a roll of sheet material

Also Published As

Publication number Publication date
IT948314B (it) 1973-05-30
BE778497A (fr) 1972-05-16
CH547220A (de) 1974-03-29
DE2203213A1 (de) 1972-08-24
FR2124872A5 (fr) 1972-09-22
GB1328485A (en) 1973-08-30

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