EP0606116B1 - Vorrichtung und Verfahren zum Abschneiden eines Streifens Klebefolie - Google Patents

Vorrichtung und Verfahren zum Abschneiden eines Streifens Klebefolie Download PDF

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Publication number
EP0606116B1
EP0606116B1 EP94103720A EP94103720A EP0606116B1 EP 0606116 B1 EP0606116 B1 EP 0606116B1 EP 94103720 A EP94103720 A EP 94103720A EP 94103720 A EP94103720 A EP 94103720A EP 0606116 B1 EP0606116 B1 EP 0606116B1
Authority
EP
European Patent Office
Prior art keywords
drum means
strips
drum
web
tape
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
EP94103720A
Other languages
English (en)
French (fr)
Other versions
EP0606116A3 (en
EP0606116A2 (de
Inventor
Michael C/O Eastman Kodak Company Long
Lyndon Rae C/O Eastman Kodak Company Huttemann
Robert Wayne C/O Eastman Kodak Company Stanford
Robert Donald C/O Eastman Kodak Company Longboat
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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
Priority claimed from US07/471,177 external-priority patent/US5053096A/en
Priority claimed from US07/471,159 external-priority patent/US5066345A/en
Priority claimed from US07/471,176 external-priority patent/US5066346A/en
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP0606116A2 publication Critical patent/EP0606116A2/de
Publication of EP0606116A3 publication Critical patent/EP0606116A3/en
Application granted granted Critical
Publication of EP0606116B1 publication Critical patent/EP0606116B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material
    • G03D15/04—Cutting; Splicing
    • G03D15/043—Cutting or splicing of filmstrips
    • G03D15/046—Automatic cutting
    • 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
    • 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
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
    • 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
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0013—Article or web delivery apparatus incorporating cutting or line-perforating devices and applying the article or the web by adhesive to a surface
    • 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
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4615—Processing webs in splicing process after splicing
    • B65H2301/4617—Processing webs in splicing process after splicing cutting webs in splicing process
    • B65H2301/46176—Processing webs in splicing process after splicing cutting webs in splicing process cutting both spliced webs simultaneously
    • 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
    • B65H2301/462—Form of splice
    • B65H2301/4622—Abutting article or web portions, i.e. edge to edge
    • 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
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—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
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—Adhesive tape
    • B65H2301/46312—Adhesive tape double-sided
    • 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
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4632—Simultaneous deformation of the two web ends

Definitions

  • the present invention concerns an apparatus for cutting stripes of adhesive tape from a web of such tape of indeterminate length and for applying such strips to a surface.
  • U.S. Patent 3,245,861 discloses a web splicer for use in label printing equipment in which the lead end of the following or new length of web is manually trimmed and a length of tape is applied across the trimmed end. The preceding or old length of web is then stopped as its source spool is emptied and its tail end is trimmed. The new lead end and applied strip of tape are then pressed against the old tail end to form an overlapping joint. Such overlapping joints are acceptable in many industrial applications but present problems during subsequent handling of the web in other applications.
  • U.S. Patent 3,939,032 discloses a web butt splicer in which the new lead end is trimmed manually and a length of tape is applied across the lead end.
  • U.S. Application B339,446 shows a web cutting and splicing apparatus in which a hot wire is used to cut two webs and heat their ends sufficiently to facilitate formation of a fused butt joint.
  • U.S.Patent 4,204,898 shows a tape winding and splicing apparatus in which side by side input platens hold tape and leader webs and an opposed, coplanar process platen holds the tail end of the tape or leader most previously cut. In use, a leader running between two reels is cut in an initial position of the input platens in which the leader's input platen is aligned with the process platen.
  • U.S. Patent 4,501,630 discloses an apparatus for splicing a leader to magnetic tape in which the leader and tape are fed along parallel, coplanar guide grooves in a receiving table which is movable transversely to permit either the leader or the tape to move into a coplanar guide groove on an adjacent receiving table. After the lead end of the tape and the tail end of the leader have been trimmed in separate operations, the two ends are abutted and a strip of tape is applied.
  • U.S. Patent 4,629,531 shows an apparatus for joining sheet ends such as might be used in a newspaper printing plant. The new web is stopped and trimmed manually, after which glue is applied to its lead end.
  • U.S. Patent 4,801,342 discloses a method and an apparatus for forming a butt splice in which the old web and the new web are run along opposite sides of a planar cutting anvil along whose edge cutting wheels are run to trim the lead and tail ends, after which a strip of tape is rolled over the abutted ends.
  • Splicers of the types shown in these patents typically require intervention by the operator for steps such as trimming the lead or tail ends or applying tape strips to applicator wheels or to the trimmed ends. While this type of operator involvement is acceptable in many applications, certain high speed web handling operations, such as the spooling of photographic film, are slowed undesirably. Particularly when the web handling must take place in the dark, as in photographic applications, the operator's involvement can significantly slow the process.
  • U.S. Patent 4,328,066 shows a tape splicer in which the tape is pulled onto a rotating vacuum drum which is translated into contact with the abutted ends to complete the splice, after which the vacuum drum is withdrawn to a position where the next strip can be cut. A separate roller is used to smooth out the splice.
  • U.S. Patents 4,475,970 and 4,478,674 show tape splicers in which the tape is cut to lengths on a square block and then press applied to the abutted ends.
  • Patent 4,533,586 shows an apparatus for applying labels to packages in which a perforated strip of labels is moved past a rotary cutter which cuts the strip into individual labels and passes them to a transfer drum which places the labels on a heated vacuum applicator drum which presses the labels onto the packages.
  • U.S. Patent 4,848,691 shows a splicer in which the new web is trimmed, a strip of tape is applied to its trimmed end and then the trimmed end and tape are pressed into a lap joint with the still moving old web.
  • tape dispensers also have been used extensively.
  • One type manufactured by the 3M Company, uses knurled disks to move the tape through the dispenser. The operator depresses a ratcheting crank which turns the knurled disks to meter the tape, after which the operator must cut the tape against an adjacent serrated blade.
  • Another type of dispenser also made by the 3M Company, meters and cuts the tape by means of a metering wheel whose periphery comprises a series of raised ribs which contact the sticky side of the tape. Between these ribs are recesses large enough to permit the operator to insert a finger to peel away a cut strip after a plunge type knife has severed the tape near the preceding rib.
  • Dispensers of these general types are shown in German Patent 963,128.
  • the free end of a tape is pushed through the throat of a guillotine type cutter, which can lead to stubbing of the tape and improper operation of the dispenser.
  • Other types of tape applicators are described in an article by Walter C. Larsen entitled “A study in machine development", Modern Packaging , Volume 33, No. 7, March 1960, pages 201 and forward.
  • Vacuum drums again are used to carry strips of tape, sticky side out, to transfer drums or directly to the place of application of the strips.
  • the primary objective of this invention is to provide a method and apparatus for splicing webs of material in which operator interaction would be limited to replacement of the sources of web and splicing tape as they are consumed.
  • Another objective of this invention is to provide such a method and appartus which will automatically complete the splice in a matter of seconds without intervention by the operator.
  • Yet another objective of this invention is to provide such a method and apparatus which will ensure proper registration of edge perforations between new and old webs.
  • Still another objective of this invention is to provide such an apparatus which is modular and can be relatively simply installed in place of existing splicing equipment.
  • Still another objective of this invention is to provide such an apparatus and method which can splice with single or double sided tape with little sensitivity to the degree of stickiness of the tape, the flexibility of the tape support or the tendency of the support to curl.
  • the apparatus is seen to comprise a rugged base plate 10 positioned preferably between an old or expiring roll or source 12 of web 14 of indeterminate length, such as conventional 35 mm photographic film having edge perforations, not illustrated; and a new or waiting spare roll or source 16 of web 18 also of indeterminate length, such a photographic film.
  • Web 14 is threaded about a flanged roller 20 mounted for rotation on an axis perpendicular to base plate 10 and then over a flanged registration sprocket 22 aligned with roller 20.
  • Sprocket 22 is attached to a ratchet wheel 24 and the assembly is mounted for rotation on an axis perpendicular to base plate 10.
  • web 18 is threaded about a pair of flanged rollers 26 mounted for rotation about axes perpendicular to base plate 10 and then over a flanged registration sprocket 28 aligned with rollers 26.
  • Sprocket 28 is attached to a ratchet wheel 30 and the assembly is mounted for rotation on an axis perpendicular to base plate 10.
  • bracket 32 Laterally spaced from ratchet wheels 24 and 30 is an elongated U-shaped bracket 32 which is rigidly mounted to base plate 10 with the open end of the U facing to the right as illustrated in Figure 1. As seen most clearly in Figure 4, affixed to the front surface 34 of bracket 32 are a pair of vertically spaced, parallel vacuum input platens 36,38.
  • input platens may be provided with edge guides 40,42, shown only in Figure 4 for ease of illustration. Guides 40,42 are aligned with the flanges on sprockets 22,28 to ensure that webs 14 and 18 will run straight and parallel across input platens 36,38.
  • input platens 36,38 comprise flat perforated bed plates 44 operatively connected to manifolds 46 which in turn are connected by suitable pneumatic fittings 48 to a conventional source of pressurized air or vacuum (not illustrated).
  • a conventional source of pressurized air or vacuum not illustrated.
  • Bracket 32 Within bracket 32 is mounted a cutting knife carrier block 50 having on its front face a vertically extending spline 52 which slidably engages a vertical slot 54 extending into the inside surface of the front wall of bracket 52, as indicated in phantom lines.
  • Carrier block 50 is provided in its rear surface with a vertically extending slot 56, as indicated in phantom lines, which slidably engages a vertically extending spline 58 provided on a flange 60 attached to a side wall of bracket 32.
  • a handle 62 is provided for manually moving carrier block 50 up and down; however, such movement typically is provided in operation by a pneumatic cylinder 64 having its head end 66 pivotably attached to base plate 10 by means of a cylinder mount 68 and its rod end 70 pivotably attached to carrier block 50 by means of a flange 72.
  • a pneumatic cylinder 64 having its head end 66 pivotably attached to base plate 10 by means of a cylinder mount 68 and its rod end 70 pivotably attached to carrier block 50 by means of a flange 72.
  • Attached to the vertical side of carrier block 50 exposed through the open end of U-shaped bracket 32 is a stiff metal plate 73 having a pair of vertically spaced, laterally extended and resilient arms 74,76 whose lower edges define a pair of cutting knives 78,80 having downwardly angled cutting edges.
  • An upper bracket 86 and a lower bracket 88 extend forwardly from base plate 10 and rigidly support between them a vertically extending slide 90, illustrated only schematically, on which a rigid carrier plate 92 is mounted for movement upward and downward as viewed in Figures 1 to 3. Movement of carrier plate 92 between the positions of Figure 1 and Figure 3 is controlled by a pneumatic cylinder 94, shown positioned behind slide 90, whose head end 96 is attached to bracket 88 and whose rod end, not illustrated, is operatively connected to carrier plate 92.
  • a lower trimmed end vacuum platen 98 which is directly opposite to and aligned with input platen 36 in the position of Figure 1, but below input platen 36 in the position of Figure 3.
  • a central process vacuum platen 100 is mounted on the front face of carrier plate 92 directly above and parallel to trimmed end platen 98.
  • Process platen 100 is directly opposite to and aligned with input platen 38 in the position of Figure 1, but directly opposite to and aligned with input platen 36 in the position of Figure 3.
  • An upper trimmed end vacuum platen 102 is mounted on the front face of carrier plate 92 directly above and parallel to process platen 100.
  • Trimmed end platen 102 is directly opposite to and aligned with input platen 38 in the position of Figure 3, but above input platen 38 in the position of Figures 1 and 2.
  • Each of platens 98,100,102 preferably includes a perforated bed plate similar to bed plates 44.
  • each of platens 98,100,102 preferably comprises edge guides similar to guides 40,42 which optionally may be provided or input plates 36,38.
  • manifolds 104 connect each platen 98,100,102 via suitable pneumatic fittings 106 to a conventional source of pressurized air or vacuum (not illustrated).
  • trimmed end platens 98,102 are provided at their trailing edges with pairs 108,110 of spaced locator pins for engaging the edge perforations in webs 14,18.
  • the locator pins are positioned so that when perforations of the webs are placed over the pins, the following portions of the webs will also register with registration sprockets 22,30.
  • ratchet wheels 24,30 are provided, respectively, with latch pawls 112,114 having slotted pivots 116 attached to base plate 10 and pneumatic pawl actuator cylinders 118,120 pivotably attached between pawls 112,114 and base plate 10.
  • pawl 112 is shown disengaged from ratchet wheel 24, thereby permitting old web 14 to pass over input platen 38 and process platen 100; whereas, pawl 114 is shown engaged with ratchet wheel 30, thereby restraining new web 18 from movement across input platen 36 and trimmed end platen 98.
  • the old web 14 is drawn from roll 12, around flanged roller 20, around free-wheeling flanged registration sprocket 22, across input platen 38 and process platen 100, around flanged rollers 122,124,126 and on to subsequent processing equipment.
  • a flow of air is maintained through the bed plates of platens 38 and 100 to support the web during movement.
  • new roll 16 sits waiting with web 18 passed around flanged rollers 26, over stopped flanged registration sprocket 28, across input platen 36 and onto trimmed end platen 98 where one set of edge perforations is placed over locator pins 108.
  • a vacuum may be applied through the bed plates of platens 36 and 98 to hold the lead end of web 18 in place.
  • pneumatic cylinder 120 is actuated to engage pawl 114 with ratchet wheel 24, thereby bringing web 14 to a rapid but controlled stop.
  • the arrangement of cylinder 120 and slotted pivot 116 of pawl 114 provides sufficient flexibility in the linkage to enable the inherent damping and compliance characteristics of the cylinder to stop the web without damage to its perforations.
  • registration sprockets 22 and 28 are positioned so that at trailing edges 82,84 of input platens 36,38, the edge perforations of webs 14,18 are in perfect registry when both webs are stopped.
  • Vacuum is then applied through the bed plates of platens 38,100 and 36,98 to hold webs 14,18 securely in place on their respective platens.
  • Pneumatic cylinder 64 is then actuated to cause carrier block 50 to move downward to the position shown in Figures 2 and 4. This movement causes knife blades 78,80 to pass closely over trailing edges 82,84 to cleanly cut web 14 and trim the lead end of web 18, while leaving the edge perforations on the lead end of web 18 and those on the tail end of web 14 in registry. Cylinder 64 then raises the knife assembly back to the position of Figures 1 and 3.
  • splice tape dispenser and applicator 128 may be seen to comprise a rugged frame made up of a back plate 132 which is rigidly attached to carrier plate 92 in a position to permit applicator roller 130 to roll across platen 100 and either platen 36 or platen 38 to complete the splice.
  • the frame also comprises a center plate 134 and a laterally elongated front plate 136. Between plates 132 and 134, a plurality of spacers 138 are provided; and between plates 134 and 136, a plurality of spacers 140.
  • On the front surface of front plate 136 is mounted an L-shaped bracket 142 to which a pneumatically driven motor 144 is attached. Motor 144 is operatively connected to drive shaft 146 for dispenser and applicator 128.
  • Shaft 146 is journalled for rotation in rear plate 132, center plate 134 and front plate 136.
  • a manual indexing handle 148 is mounted on shaft 146 via a conventional overrunning clutch, not illustrated.
  • a ratchet wheel 150 is fixed on shaft 146 to the rear of handle 148 and a leaf spring 152 is mounted on the front face of front plate 136 in position to function as a reverse rotation stop for ratchet wheel 150.
  • handle 148 may be rotated in the direction indicated as needed to index the overall mechanism, as would be needed, for example, when threading a new roll of tape.
  • a pneumatic cylinder 154 is mounted on the front surface of front plate 136 for the purpose of extending and retracting tape applicator wheel 130, as will be discussed in more detail shortly.
  • Cylinder 154 is attached to front plate 136 by means of a pivot at the head end 156 of the cylinder.
  • the actuator rod 158 of cylinder 154 passes beneath indexing handle 148 and is pivotably attached to the outboard end of a slidable carrier 160 on which applicator roller 130 is mounted, as best seen in Figures 17 and 18.
  • shaft 146 fixedly supports a timing belt pulley 162, as shown in Figures 6 and 8, about which pulley a timing belt 164 extends into engagement with an idler pulley 166 and a further drive pulley 168 mounted on a shaft 170.
  • Shaft 170 is journalled for rotation in center plate 134 and rear plate 136. The diameters of pulleys 162 and 168 are chosen so that shaft 170 will rotate faster than shaft 146, for a purpose soon to be discussed.
  • shaft 170 fixedly supports a tape release drum 172 comprising a plurality of axially spaced disks with knurled peripheral surfaces having the general configuration shown in Figure 14A.
  • the knurling preferably is a 96 TPI straight knurl pattern with an included angle alpha for the knurl ridges of about 60 degrees.
  • shaft 170 also fixedly supports a knurled drive wheel 174 which engages and rotates applicator roller 130, as best seen in Figures 14 to 18.
  • Drive wheel 174 is sized so that applicator roller 130 will have a peripheral velocity approximately ten per cent higher than that of release drum 172. Note, however, that the surface of applicator roller 130 is in close proximity to but does not contact the surface of release drum 172.
  • shaft 146 passes loosely through a carrier block return spring 176 having a fixed end 178 positioned against a stop pin 180 extending rearwardly from center plate 134, and a movable end 182 crimped over one edge of an essentially rectangular knife carrier block 184 mounted for free rotation on shaft 146.
  • carrier block 184 To the rear of carrier block 184, shaft 146 fixedly supports a ratchet wheel 186 and, further to the rear, fixedly supports a tape acquisition drum 188 comprising a plurality of axially spaced disks with knurled peripheral surfaces having the general configuration shown in Figure 14B.
  • the knurling is of the same general type as used for release drum 172, except that the ridges of the knurls are flattened, preferably having a circumferential width beta of about 0.0508 cm.
  • the sizes of drive pulley 162, drive pulley 168, release drum 172 and acquisition drum 188 are chosen so that release drum 172 has a peripheral velocity approximately fifty per cent higher than that of acquisition drum 188. As shown in Figures 6 and 13, the disks of drums 172 and 188 are interleaved, for a purpose to be discussed.
  • carrier block 184 includes on its rear side a transverse slot 190 in which a knife carrier plate 192 is slidably mounted and secured by keeper straps 194,196.
  • Knife carrier 192 includes at one end a rearwardly extending arm 198 on which a plunge knife 200, preferably pointed or arrow head shaped, is mounted.
  • Knife carrier 192 also includes at its opposite end a forwardly projecting tab 202 which extends beyond the forward face of carrier block 184 and is attached to one end of a knife carrier return spring 204, the other end of which is attached to a pin 206 extending from the forward face of carrier block 184.
  • a forwardly projecting cam follower pin 208 which cooperates with a flipper cam 210 pivotably mounted on a stub axle 212 extending rearwardly from center plate 134.
  • Flipper cam 210 comprises a flat upper flange 214 extending rearwardly and a flat front flange 216 extending downwardly.
  • a flipper cam return spring 218 is mounted on axle 212 with its fixed end 220 bearing against a stop pin 222 projecting rearwardly from center plate 134 and its movable end 224 captured in a slot 226 provided in the end of flipper cam 210 remote from axle 212. Downward movement of flipper cam 210 is limited by a stop pin 228 projecting rearwardly form center plate 134 just below slot 226.
  • pawl 230 Also attached to carrier block 184 is a knife carrier return pawl 230 having a pivot pin 232 extending rearwardly from carrier block 184. At its upper end, as best seen in Figures 9 to 13, pawl 230 includes a forwardly projecting tab 234 which extends into close proximity with the rear surface of center plate 134. A pawl return spring 236 is attached to tab 234 at one end, its other end being attached to a pin 238 projecting from one edge of carrier block 184. At a location closer to pivot pin 232, pawl 230 includes a rearwardly projecting dog 240 for engaging ratchet wheel 186.
  • Rear plate 132 includes an upwardly extending arm on which a source or spool 242 of single or double sided adhesive tape is mounted for rotation. As seen most clearly in Figures 14 to 16, a web 244 of tape of indeterminate length is led from spool 242 and passes, sticky side out, around a roller 246 mounted on a manually movable lever 248 pivoted to rear plate 132 on an axle 250. To thread web 244 into tape dispenser and applicator 130, lever 248 is depressed counterclockwise as viewed in Figure 14 until a stop roller 252 mounted on a side arm 254 of lever 248 contacts acquisition drum 188.
  • a return spring 256 is mounted on an axle 258 projecting forwardly from rear plate 132 and has its fixed end against one of spacers 138 and is movable end bearing on lever 248. With roller 246 raised from acquisition drum 188, web 244 is then passed around roller 246 as shown in Figure 15 and lever 248 is released so that spring 256 presses roller 246 against web 244 whose sticky side then engages the flat tops 260 of the knurls on acquisition drum 188. Once web 244 has been thus engaged with acquisition drum 188, handle 148 shown in Figure 7 may be indexed to rotate shaft 146 and cause drum 188 to rotate clockwise and draw more of web 244 from roll 242.
  • each rotation of shaft 146 causes four cycles of operation of these mechanisms; however, those skilled in the art will appreciate that fewer or more cycles could be provided by changing the number of teeth on ratchet wheels 150 and 186.
  • Figure 9 shows the mechanism as it appears when a cycle of operation has just finished. As shaft 146 rotates clockwise, ratchet wheel 186 engages dog 240 on pawl 230 and thus pulls carrier block 184 along.
  • cam follower pin 208 on knife carrier 192 eventually comes into contact with the upper surface of flange 214 of flipper cam 210, thus causing knife carrier 192 to begin to move toward shaft 146 and bringing plunge knife blade 200 closer and closer to the periphery of acquisition drum 188.
  • acquisition drum 188 is provided with a plurality of inwardly extending slots 189, four in the illustrated embodiment, the slots extending axially along the drum through each of its constitutent disks.
  • Plunge knife blade 200 is positioned to enter one of slots 189 as knife carrier 192 is forced toward shaft 146 by flipper cam 210.
  • Slots 189 and plunge knife blade 200 preferably are angled slightly away from a radial orientation toward the axis of shaft 146, in the direction so that slots 189 open toward the rotation of shaft 146. This arrangement ensures that if web 244 were to adhere to the knife blade as the blade is extended into the slot, the leading portion of the web would strip from the blade. Conversely, when the blade is withdrawn from the slot in the manner now to be discussed, the trailing portion of the web would strip from the blade.
  • plunge knife blade 200 When the mechanism has reached the position of Figure 11, plunge knife blade 200 has reached the position shown in Figure 16.
  • the grip of the adhesive on web 244 to flats 260 prevents the web from being drawn into slots 189 as it is being cut and results in clean, straight cuts.
  • the arrow head shape of knife blade 200 helps prevent the web from being drawn into the slots, as it significantly reduces the cutting force required.
  • a small additional rotation of shaft 146 then causes cam follower pin 208 to slide off the end of flipper cam 210, thus allowing knife carrier 192 to retract knife blade 200 from slot 189 under the influence of spring 204.
  • a small further rotation of shaft 146 causes tab 234 of pawl 230 to engage a stop pin 264 projecting rearwardly from center plate 134.
  • Pawl 230 thus is lifted so that dog 240 comes out of engagement with ratchet wheel 186. This permits carrier block 184 to rotate counterclockwise under the influence of return spring 176 until the position of Figure 9 is reached again and dog 240 has reengaged ratchet wheel under the influence of spring 236.
  • the distance along the periphery of release drum 172 from acquisition drum 188 to vacuum roller 130 must be substantially less than the desired length of the strips of tape being cut; so that, the trailing edge of each strip will still be adhered to acquisition drum 188 when its leading edge is acquired by vacuum roller 130, thus preventing the strip from peeling away prematurely.
  • the differential adhesion of the web to drums 172 and 188, along with the peripheral velocity overspeed of release drum 172, prevents tape from adhering to release drum 172 and also allows acquisition drum 188 to control the squareness and advance of each cut stip from web 244.
  • applicator roller 130 While applicator roller 130 is positioned as shown in Figures 9 to 17, a hub 266 at its rear portion engages knurled wheel 174 to drive vacuum roller 130 approximately ten per cent faster than release drum 172. See Figure 17 for the engagement of hub 266 and wheel 174. As indicated previously, applicator roller 130 is mounted for translation into and out of contact with the abutted ends of web positioned on process platen 100 and one of input platens 36,38. For this purpose, a slide 268 is attached to the rear surface of front plate 136, within which slidable carrier 160 is mounted for movement between the two positions shown in Figures 17 and 18.
  • a mounting block 270 is attached to the rear surface of carrier 160 and, in turn, supports a leaf spring mounting block 272 having parallel upper and lower surfaces from which a pair of leaf springs 274,276 extend toward release drum 172. Attached to the other ends of leaf springs 274,276 is a conventional bearing block and air fitting 278 which rotatably supports a shaft 280 for applicator roller 130. A vacuum connector 282 is attached to fitting 278 to provide the necessary vacuum for operation of applicator roller 130.
  • a flange 284 extends rearwardly from the lower rear face of slide 268 and ends just below central plate 134. As shown in Figures 7, 17 and 18, flange 284 is provided in its rear face with a cam slot 286.
  • cam slot 286 slopes downwardly from the position of Figure 17 in which hub 266 engages wheel 174 to the position of Figure 18 in which applicator roller 130 moves across the surfaces of platens 100 and 36 or 38, indicated in phantom.
  • Leaf springs 274,276 permit this movement of applicator roller 130 and, once roller 130 contacts platen 100, also provide a continuous downward bias to the roller to ensure that each strip of tape is securely applied to the abutted ends of webs 14 and 18, even if process platen 100 and one of input platens 36,38 are not positioned in precisely the same plane. And, because applicator roller 130 is covered with a compliant silicone rubber, it tends to move rather smoothly over small irregularities and misalignments.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (12)

  1. Vorrichtung zum Schneiden von Klebebandstreifen von einer Bahn (244) solchen Bandes unbestimmter Länge und zum Aufbringen derartiger Streifen auf eine Oberfläche, wobei die Vorrichtung aufweist:
    eine Quelle (242) von Klebeband unbestimmter Länge, wobei das Band zumindest eine klebende Seite aufweist;
    eine erste drehbare Trommel (188) zum Abziehen einer Bahn dieses Bandes von der Quelle;
    eine Schneideinrichtung (200) zum Schneiden der Bahn in Streifen (292) vorbestimmter Länge, während die Bahn von der ersten Trommel abgezogen wird;
    eine zweite drehbare Trommel (172) zum sequenziellen Entfernen dieser Streifen von der ersten Trommel;
    eine dritte drehbare Trommel (130) zum Entfernen dieser Streifen (292) von der zweiten Trommel (172) und
    eine Verschiebeeinrichtung zum Abrücken der dritten Trommel (130) von der zweiten Trommel (172) und zum Rollen der dritten Trommel (130) längs einer Oberfläche, um diese Streifen sequenziell auf eine Oberfläche aufzubringen,
       dadurch gekennzeichnet, daß
    die erste drehbare Trommel (188) die Bahn (244) von der Quelle (242) so abzieht, daß die klebende Seite die erste Trommel berührt,
    die zweite drehbare Trommel (172) die Streifen (292) so von der ersten Trommel (188) entfernt, daß die klebende Seite die zweite Trommel berührt, und
    die dritte drehbare Trommel (130) die Streifen (292) so von der zweiten Trommel entfernt, daß die klebende Seite von der dritten Trommel abgewandt ist.
  2. Vorrichtung nach Anspruch 1, wobei die erste Trommel eine erste Vielzahl runder Scheiben aufweist, die drehbar an einer ersten Welle angebracht sind, und die zweite Trommel eine zweite Vielzahl runder Scheiben aufweist, die drehbar an einer zweiten Welle angebracht sind, wobei die Kanten der Scheiben der ersten Vielzahl mit denjenigen der zweiten Vielzahl blätterförmig ineinandergreifen, wodurch die von den Scheiben der ersten Trommel abgezogenen Streifen von den blätterförmig eingreifenden Scheiben der zweiten Trommel entfernt werden.
  3. Vorrichtung nach Anspruch 1 oder 2, die ferner auch eine Einrichtung aufweist, die bewirkt, daß die Bahn bevorzugt eher an der ersten Trommel als an der zweiten Trommel haftet.
  4. Vorrichtung nach Anspruch 3, wobei die dies bewirkende Einrichtung Riffel mit peripheren Abflachungen an den Scheiben der ersten Trommel und Riffel mit peripheren Riffelgraten an den Scheiben der zweiten Trommel aufweist.
  5. Vorrichtung nach Anspruch 3, wobei die dies bewirkende Einrichtung eine federgespannte Rolle aufweist, die die Streifen gegen die erste Trommel drückt.
  6. Vorrichtung nach einem der vorstehenden Ansprüche, wobei die mit dem Klebemittel versehene Seite dieser Streifen die Umfangsflächen zumindest eines Teils der Scheiben der ersten und zweiten Trommel berührt und die gegenüberliegende Seite dieser Streifen die Umfangsfläche der dritten Trommel berührt.
  7. Vorrichtung nach einem der vorstehenden Ansprüche, wobei die Schneideinrichtung wenigstens einen Schlitz, der von den Umfangsflächen der Scheiben der ersten Trommel zu der ersten Welle hin verläuft, wenigstens eine Schneidklinge und eine Einrichtung zum Eintauchen der Klinge in den wenigstens einen Schlitz aufweist, um beim Drehen der ersten Trommel die Streifen herzustellen.
  8. Vorrichtung nach einem der vorstehenden Ansprüche, wobei die Verschiebeeinrichtung einen Träger für die dritte Trommel, eine Einrichtung zum Verschieben des Trägers hin zu der zweiten Trommel und von dieser weg und eine Einrichtung zum Führen des Trägers während des Verschiebens zwischen einer Stellung, in der sich die dritte Trommel in nächster Nähe zur zweiten Trommel dreht, um die Streifen aufzunehmen, und einer Stellung, in der die dritte Trommel die Oberfläche berührt, um die Streifen aufzubringen, aufweist.
  9. Vorrichtung nach Anspruch 7, die ferner eine Zahnscheibe, die zur synchronen Drehung mit der ersten Trommel angeordnet ist, einen drehbar angeordneten Messerträgerblock, eine Feder, die den Trägerblock gegen eine Drehung in der Drehrichtung der Zahnscheibe belastet, eine an dem Trägerblock angeordnete Klaueneinrichtung zum Eingriff in die Zahnscheibe, die bewirkt, daß der Block sich gegen die Spannung der Feder in der Drehrichtung der Zahnscheibe dreht, wobei die Eintaucheinrichtung eine verschiebbar an dem Trägerblock angeordnete Einrichtung zum Halten der Schneidklinge in der Nähe des Umfangs der ersten Trommel aufweist, und einen Daumen (210) zum Bewegen der Einrichtung zum Halten der Schneidklinge, um zu bewirken, daß die Klinge in den Schlitz eintritt, um die Streifen zu schneiden, aufweist, und ferner eine Einrichtung zum Herausheben der Klaueneinrichtung aus dem Eingriff mit der Zahnscheibe jeweils nach dem Abschneiden des Streifens aufweist, damit sich der Trägerblock unter dem Einfluß der Feder in Gegenrichtung drehen kann, bis die Klaueneinrichtung wieder in die Zahnscheibe eingreift und den Trägerblock in der Stellung für den Beginn des Schneidens des nächsten Streifens anhält.
  10. Vorrichtung nach Anspruch 9, wobei der Messerträgerblock koaxial mit der Zahnscheibe angebracht ist.
  11. Vorrichtung nach Anspruch 9, die ferner eine Einrichtung aufweist, die bewirkt, daß die Bahn bevorzugt eher an der ersten Trommel als an der zweiten Trommel haftet.
  12. Verfahren zum Schneiden von Klebebandstreifen von einer Bahn eines solchen Bandes unbestimmter Länge und zum Aufbringen dieser Streifen auf eine Oberfläche, das die folgenden Schritte aufweist:
    Bereitstellen einer Quelle (242) Klebebands unbestimmter Länge, wobei das Band zumindest eine klebende Seite aufweist,
    Bereitstellen einer ersten drehbaren Trommel (188),
    Abziehen einer Bahn (244) dieses Bands von der Quelle (242) durch Drehen der ersten Trommel,
    Schneiden der Bahn in Streifen (292) vorbestimmter Länge, während die Bahn durch die erste Trommel (188) abgezogen wird,
    Bereitstellen einer zweiten drehbaren Trommel (172),
    sequenzielles Entfernen dieser Streifen (292) von der ersten drehbaren Trommel (188) durch Drehen der zweiten Trommel (172) in der Nähe der ersten Trommel,
    Bereitstellen einer drehbaren Unterdrucktrommel (130),
    Entfernen dieser Streifen (292) von der zweiten Trommel (172) durch Drehen der Unterdrucktrommel (130) in der Nähe der zweiten Trommel (172) und
    Abrücken der Unterdrucktrommel (130) von der zweiten Trommel und Rollen der Unterdrucktrommel längs einer Oberfläche, um diese Streifen (292) sequenziell auf die Oberfläche aufzubringen,
       dadurch gekennzeichnet, daß
    die Bahn (244) von der Quelle (242) so abgezogen wird, daß die klebende Seite die erste Trommel berührt,
    die Streifen (292) von der ersten Trommel so entfernt werden, daß die klebende Seite die zweite Trommel berührt, und
    die Streifen (292) von der zweiten Trommel so entfernt werden, daß die klebende Seite von der Unterdrucktrommel (130) abgewandt ist.
EP94103720A 1990-01-26 1991-01-24 Vorrichtung und Verfahren zum Abschneiden eines Streifens Klebefolie Expired - Lifetime EP0606116B1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US07/471,177 US5053096A (en) 1990-01-26 1990-01-26 Apparatus and method for splicing webs of indeterminate length
US471159 1990-01-26
US471177 1990-01-26
US07/471,159 US5066345A (en) 1990-01-26 1990-01-26 Apparatus and method for splicing webs of indeterminate length
US07/471,176 US5066346A (en) 1990-01-26 1990-01-26 Apparatus and method for splicing webs of indeterminate length
US471176 1990-01-26
EP91903728A EP0465631B1 (de) 1990-01-26 1991-01-24 Apparat und verfahren zum verbinden von bahnen unbestimmter länge

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP91903728.3 Division 1991-08-16

Publications (3)

Publication Number Publication Date
EP0606116A2 EP0606116A2 (de) 1994-07-13
EP0606116A3 EP0606116A3 (en) 1994-09-07
EP0606116B1 true EP0606116B1 (de) 1997-08-20

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP94103720A Expired - Lifetime EP0606116B1 (de) 1990-01-26 1991-01-24 Vorrichtung und Verfahren zum Abschneiden eines Streifens Klebefolie
EP91903728A Expired - Lifetime EP0465631B1 (de) 1990-01-26 1991-01-24 Apparat und verfahren zum verbinden von bahnen unbestimmter länge

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91903728A Expired - Lifetime EP0465631B1 (de) 1990-01-26 1991-01-24 Apparat und verfahren zum verbinden von bahnen unbestimmter länge

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EP (2) EP0606116B1 (de)
JP (1) JPH04504554A (de)
DE (2) DE69104148T2 (de)
WO (1) WO1991011380A2 (de)

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Publication number Priority date Publication date Assignee Title
DE19618175C1 (de) * 1996-05-07 1997-07-24 Multivac Haggenmueller Kg Vorrichtung zum Ersetzen einer ersten Bahn durch eine zweite Bahn
DE69717004T2 (de) * 1996-05-24 2003-04-03 Fuji Photo Film Co., Ltd. Bahnverbindungsapparat
IT1292802B1 (it) * 1997-03-18 1999-02-11 Ima Spa Apparecchiatura per l'alimentazione di un film di materiale termoformabile in macchine confezionatrici di prodotti in
WO2000056645A1 (de) * 1999-03-24 2000-09-28 Jagenberg Papiertechnik Gmbh Vorrichtung zum verbinden von materialbahnen
US7178756B2 (en) * 2005-03-18 2007-02-20 Eastman Kodak Company Automatic perforated web splicing system
NL2008498C2 (en) 2012-03-16 2013-09-18 Fuji Seal Europe Bv Device and method for connecting two ends of tubular foil.
JP6707518B2 (ja) * 2014-08-01 2020-06-10 アンジェロ・ドッタ 工作機械へ給送するために特に適したリール交換装置
CN112390048B (zh) * 2020-11-23 2024-06-18 苏州晟成光伏设备有限公司 一种eva裁剪铺设机

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US339446A (en) * 1886-04-06 maetin
DE963128C (de) * 1951-12-08 1957-05-02 Derby Sealers Inc Klebstreifenspender
US4001067A (en) * 1973-03-08 1977-01-04 Mobil Oil Corporation Butt welder cutting element temperature control
US4204898A (en) * 1978-06-21 1980-05-27 King Instrument Corporation Tape winding and splicing machine
US4533586A (en) * 1984-03-08 1985-08-06 American Bank Note Company Web of adhesive labels

Also Published As

Publication number Publication date
WO1991011380A2 (en) 1991-08-08
EP0606116A3 (en) 1994-09-07
EP0606116A2 (de) 1994-07-13
DE69104148D1 (de) 1994-10-27
DE69104148T2 (de) 1995-01-19
WO1991011380A3 (en) 1991-10-17
EP0465631A1 (de) 1992-01-15
JPH04504554A (ja) 1992-08-13
DE69127376T2 (de) 1997-12-18
DE69127376D1 (de) 1997-09-25
EP0465631B1 (de) 1994-09-21

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