US3746599A - Butt splicer for butt-joining a fresh web to a running web - Google Patents

Butt splicer for butt-joining a fresh web to a running web Download PDF

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Publication number
US3746599A
US3746599A US00110483A US3746599DA US3746599A US 3746599 A US3746599 A US 3746599A US 00110483 A US00110483 A US 00110483A US 3746599D A US3746599D A US 3746599DA US 3746599 A US3746599 A US 3746599A
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United States
Prior art keywords
web
butt
webs
clamping
splicer
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US00110483A
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English (en)
Inventor
E Peeters
W Pauwels
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Agfa Gevaert NV
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Agfa Gevaert NV
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    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the tape handling mechanisms, e.g. using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/853—Machines for changing web rolls or filaments, e.g. for joining a replacement web to an 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
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1863—Support arrangement of web rolls with translatory or arcuated movement of the roll supports
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/003—Film feed or extraction in development apparatus
    • G03D13/005—Extraction out of a cassette and splicing of the film before feeding in a development apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B65H2301/4611—Processing webs in splicing process before splicing
    • B65H2301/46115—Processing webs in splicing process before splicing by bringing leading edge to splicing station, e.g. by chain or belt
    • 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
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers
    • 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
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts

Definitions

  • FIG. 1 is a diagrammatic representation of FIG.
  • the splicer comprises a stationary and a displaceable clamping head for clamping the webs together preparatory to splicing, a cutter for simultaneously cutting both webs transversely while they are pressed together by the clamping heads, a tape applicator for taping the webs together at one side after the cut-off end of the web at that side has been removed, and a bar extending transversely of the web path and displaceable through the clamping plane, within the clamping zone, to cause localized bowing of one web and consequent displacement of its cut end away from the cut end of the other web before such web ends are taped together.
  • the present invention relates to a butt splicer for buttjoining a fresh web to a progressing web.
  • the thickness of the web does not markedly increase locally because any thickened web portion disturbs the surface of the liquid composition in the coating tray so that wave patterns are created which may become visible in the coated layer.
  • air bubbles may be introduced into the liquid which may remain for a longer time just under the surface thereof, and cause thereby longitudinal stripes on the web of reduced coating thickness.
  • the present invention aims at providing an apparatus for butt-joining a new web to a progressing web which permits to join both webs without any risk for partial or complete edge-overlapping.
  • a butt splicer for butt-joining a fresh web to a progressing web, both webs being passed through the butt splicer along adjacent paths, comprises relatively displaceable clamping means for clamping the webs together preparatory to splicing, a cutter for simultaneously cutting both webs transversely while they are pressed together by the clamping means, a tape applicator for taping the webs together at one side after the cut-off end of the web at that side has been removed, and butt control means for causing a separation of the freshly cut web edges over a small distance before such web ends are taped together.
  • the butt control means comprises a member extending transversely of the web path and displaceable through the clamping plane, within the clamping zone, to cause local bowing of one web and. consequent displacement of its cut end away from the cut end of the other .web.
  • the butt control means comprises an elongate crossmember which extends transversely of the path of the webs and which is mounted for displacement in a direction towards and away from the webs, to lie in the inoperative position flush with or below the clamping surface of the clamping means at that side of the web and to project in the operative position over a small distance over said clamping surface, and the clamping means at the other side of the web is provided in its clamping surface with a recess for receiving the projecting portion of the crossmember when the clamping means and the cross-member are in the operative position.
  • the butt control means is located at a locus of the clamping area which, according to the longitudinal direction of the web, is closer to the end of the clamping area, which is nearest to the transverse line of cut, than to the end of the clamping area which is remote of said line, to thereby permit a firmer hold of the web at the side of the butt control means remote of the transverse line of cut than at the side nearest to said line of cut.
  • Braking means is provided for applying braking forces to the progressing web to arrest said web during the splicing interval, and to supplement thereby the said firmer hold of the web at the side of the butt control means remote of the line of cut.
  • the splicing of the webs occurs while the corresponding web ends are arrested. Since the splicing apparatus according to the invention is primarily intended for use with continuously operating web treating apparatus, it will be apparent that the apparatus according to the invention will mostly be used in conjunction with a web collectoi' or a web accumulator which enables the travel of the progressing web to the treating appartus to be continued while the trailing end of said web is temporarily arrested to perform the joining thereof to the fresh web.
  • FIG. 1 is a digramatic perspective view of the overall slicing apparatus of the invention.
  • FIG. 2 is a diagrammatic vertical sectional view taken generally along lines 22 of FIG. 1 and showing the apparatus according to the invention in the inoperative position.
  • FIG. 3 is a partial horizontal section on line 3-3 of FIG. 2.
  • FIG. 4 is a fragmentary front elevational view of the movable clamping head of the apparatus, the details of the stationary clamping head being omitted for sake of clarity.
  • FIG. 5 is a partial sectional view on line 55 of FIG. 4, the apparatus being in the operative position.
  • FIGS. 6 to 10 are diagrammatic views illustrating the sequential operations for joining the webs.
  • FIG. 11 is a front view of part of the pressure bar of the apparatus.
  • the butt splicer shown in FIGS. 2 to 5 is an apparatus wherein a fresh web 11 is butt-joined to a progressing web 12 while both webs follow a substantially vertical path through the apparatus.
  • the apparatus is mounted between two vertical supports 13 and 14 which are spaced apart and which are fixed to the floor.
  • the supports are actually hollow columns, see e.g. support 13 in FIGS. 3 and 4, wherein different air motors and a cam shaft mechanism (not shown) controlling the operation of the apparatus are mounted.
  • Two clamping heads 15 and 16 extend between the supports transverse with respect to the path followed by the webs through the apparatus.
  • the head 16 is fixedly supported between the two columns whereas the head 15 is arranged for displacement towards and away from the fixed support in a direction normal thereto.
  • the head 15 is provided with lateral supports, such as the support 17 shown in FIGS. 3 and 5 which extends through a horizontal elongate opening in the column and which is attached to a bushing 18 which is clamped to a shaft portion 19 which is journalled for axial displacement in the frame of the apparatus.
  • the position of the displaceable head is controlled by air motors 20 and 21, the cylinders of which are connected to each other.
  • the piston rod of motor 20 is linked to one extremity of the shaft portion 19 whereas the piston rod of motor 21 is connected to the machine frame. The operation of the motors will be given further in the description.
  • the stationary head 16 comprises a boxlike structure 25 which is provided with a clamping plate 26 wherein three rows 27 and one row 28 of transversely spaced small openings are provided in which a vacuum may be maintained.
  • a butt control member is provided which has the form of an elongate bar 29 which extends transversely of the path of the web and which has a rounded-off edge 30.
  • the bar is mounted for movement in a direction towards the head 15 so that in the operative position its edge 30 may project out of the clamping surface of the clamping plate 26. In the inoperative position the outer extremity of the edge of the bar lies flush with or underlies the clamping surface of the plate 26.
  • the operation of the bar is controlled by an air motor 31.
  • the clamping surface is provided with a groove 32 for cooperation with the knife blade to be described hereinafter.
  • the displaceable head 15 comprises a cutter 33 for severing the webs transversely when they lie onto each other, a tape applicator 34 for taping the webs together, a pressure bar 35 and two small knives 36 and 37 for trimming off the extremities of the tape after it has been applied to the web ends.
  • the cutter 33 and the tape applicator 34 are mounted for displacement in a direction transversely of the path of the webs to be treated.
  • the cutter comprises a circular knife blade 38 (FIG. 4) and a rubber roller 39 which are coupled to each other and which are mounted for free rotation around a shaft pin.
  • the diameter of the rubber roller equals that of the knife blade.
  • the cutter has an upwardly extending arm 40 attached to a cable 41 which runs over two idler wheels shown in broken lines. The position of the cable is controlled by an air motor 42 so that the cutter may be moved from the rest position, shown at the left hand side of the web 12 according to FIG. 4, towards the right hand side to thereby sever the webs.
  • the tape applicator 34 comprises a roll with self-adhesive tape 44 (FIG. 5) which is wound with the adhesive layer towards the interior of the roll.
  • the tape is led over idler rollers 45 and 46 and projects with the cut-01f end out of the tape applicator.
  • the applicator has an upwardly extending arm 47 attached to a cable 48 which runs over two wheels similar to the arrangement for the cutter. The position of the tape applicator is controlled by an air motor 49.
  • the idler roller 46 is slightly displaceable in a direction to and from the stationary head 16 and is biased towards said head (by means not shown). In its inoperative position, the roller 46 projects slightly past the clamping surface of plate 26 and in that position clamps the leading end of tape 44 between its periphery and transverse support strip 23 provided for this purpose on the tape applicator 34. As the tape applicator advances across the web from one edge to the other, the roller 46 rides up on plate 26 and over the webs supported on that plate. As roller 46 rides up on plate 26, it is lifted away from support strip 23 so as to release the clamping force on the leading end of the tape. As the thus released tape leading end reaches the adjacent margin of plate 26, it adheres thereto and further movement of the applicator causes the tape to be progressively wound from its supply roll, applied across the entirety of the web joint, and finally to the opposite margin of supporting plate 26.
  • the small knives 36 and 37 for trimming off the extremities of the tape after its application are mounted for movement in a direction parallel to the longitudinal direction of the web and they are displaceable over a distance which slightly exceeds the width of the adhesive tape which joins the web ends.
  • the position of the knives is controlled by air motors 50 and 51.
  • the clamping face of the displaceable head which is the side facing the corresponding side of the opposite head, is provided with two elongate pressure strips or pads 62 and 53 (FIG. 2) of resilient material, e.g. butyl rubber or the like, the length of which exceeds the width of the webs to be treated, and which extend slightly from the clamping surface of the head in the direction towards the opposite head. Between the two pressure strips a groove 55 is provided in the clamping surface which permits the displacement of the butt control bar 29 when the heads are clamped against each other in the operative position.
  • resilient material e.g. butyl rubber or the like
  • FIG. 11 Another pressure element of the head 15 is formed by the pressure bar 35 which is a U-shaped elongate rail movable in a direction normal to the clamping surface of the head and which is spring-biased towards the opposite head.
  • the frontside of the bar is provided with spaced circular pads 56 of resilient elastomer material, as shown in getail in FIG. 11 which is a front view of part of the
  • the term transversely has been used to indicate the relative position of said elements with respect to the longitudinal direction of the web.
  • the position of said elements is not exactly normal to the longitudinal direction of the web, but it rather makes an angle which amounts to about 93 such as indicated by the angle oz in FIG. 4.
  • roller 61 is arranged to form together with a displaceable roller 63, the position of which is under the control of an air motor 64, a pressure roller pair. Both rollers are provided with a resilient covering.
  • the shaft extremities of the roller 61 are provided with drum portions which may cooperate with brake shoes 65 which are under the control of an air motor 66.
  • the fresh web 11 is treated as follows before the operation of splicing the webs is performed automatically.
  • the operator folds the leading end of the Web 11 round a rod 67 and attaches said end in a known way, e.g. by taping or gluing.
  • the rod 67 extends transversely between the two vertical supports 13 and 14 and is attached with each extremity to an endless sprocket chain 68 which runs over four sprocket wheels, shown in dash and dot lines in the FIG. 2.
  • each support on which the sprocket chain mechanism is mounted is recessed in such a way that the sprocket wheels and the chain are embedded in the wall, see for instance the grooves 70 and 71 for the sprocket chain in the wall of column 13 in FIG. 3.
  • the two sprocket chains at either side of the web path are synchronized by means of a shaft 72 to which one sprocket wheel of each chain mechanism is fitted.
  • the shaft 72 is coupled to an electric motor, not shown, which controls the movements of the chain during the web splicing operation which will now be described.
  • the operator pushes a start button which starts a cam shaft mechanism, not shown, which controls the air admittance to the various air motors and the rotation of the electric motor driving the sprocket chain in timed relation, so that the following operations occur in sequence.
  • Air motor 64 is admitted to the air motor 64 so that the roller 63 is pressed against the roller 61 (FIG. 6).
  • Air motor 66 is operated so that the roller 61 is braked and the web 12 is arrested.
  • the rod 67 is moved to draw the fresh web 11 upwardly between the clamping heads and the rod motion is arrested when the position, as shown in FIG. 7, has been reached.
  • Another factor which contributes to the good cutting is the small angle, viz about 1 angular degree, which exists between the plane through the blade and the plane through the line of cut, normal to the plane of the webs.
  • This feature has been diagrammatically shown in FIG. 4, wherein the angle 18 is the angle which exists between the axis of the blade 38 and the line of cut, measured in a plane parallel to the webs, and which is 91 angular degrees.
  • the blade edge thus forms a negative angle of 1 degree with the upper edge of the groove .32 it cooperates with to perform the cutting.
  • the air motor 49 is actuated so that the tape applicator 34 is pulled towards the opposite edge of the web and reaches a position wherein the idler roller 46 is a few centimeters beyond the edge of the web.
  • the roller 46 firmly presses the tape onto the slightly spaced web ends so that after finishing the taping operation the relative position of the web extremities is exactly secured.
  • the progressive application of the tape to the webs ensures a perfect adhesion of the tape to the web ends. This perfect adhesion is frequently not obtained in those arrangements wherein the tape is first tensioncd parallel to but separated from the webs and then integrally applied thereto in a movement towards the webs, because in such arrangements the risk is great that air bubbles are included between the adhesive layer and the webs which are very diflicult to remove.
  • the air motors 50 and 51 are shortly energized so that in an upward movement the knives 36 and 37 cut-off the ends of the tape which protrude at either side of the web.
  • the air pressure supply to the air motors 20 and 21 is reversed so that the head 15 is withdrawn into the inoperative position.
  • the air motor 66 is reversed so that the pair of rollers 61 and 63 is no longer braked and the web travel can go on.
  • the air motors 42 and 49 are actuated to bring the tape applicator 34 and the cutter 33 into their initial position, and the air motor 31 is actuated to withdraw the butt-control bar 29.
  • the air motor 64 is operated so that the roller 63 is removed from the roller 61.
  • the mechanism controlling the rod 67 is actuated to bring the rod into its initial position shown in FIG. 2.
  • the joining operation is now completed, the apparatus has taken the rest position, and the operator can remove the remaining end of the web 11 from the rod 67 and prepare another fresh web for the next joining operation.
  • driving means may be coupled'with the butt splicer for starting its operation at the moment the joint has been made so that the fresh joint is not loaded with the charge which is otherwise required to make the roll of fresh web material move.
  • the end of the tape which has been cut off at the left hand side of the webs according to FIG. 4 keeps adhering to the plate 26.
  • another tape end is added thereto and these operations may go on this way until a number of tape ends have been adhered onto each other, the total thickness of which may impair the proper working of the device.
  • the operator must remove the tape ends by hand or by means of an appropriate tool during the inoperative position of the butt splicer.
  • the relative movement between the two heads may also occur by a bodily displacement of each head.
  • the different clamping means may also be operated individually rather than together such as occurs in the described embodiment wherein the position of the clamping means depends on the position of the movable head.
  • the apparatus according to the invention may also be arranged for the application of a second tape to the other side of the Web joint.
  • This second tape may be applied by an arrangement which is simpler of construction than the present one and which may be spaced apart from the present splicing station. It may comprise an applicator roller which extends transversely of the web path onto which a tape may be tensioned lengthwise, the adhesive layer being at the outer side, and which is urged towards the webs in timed relation so that the webs make contact with the tape and pull it from the applicator roller at the moment the web joint passes over said roller.
  • a butt splicer for butt-joining a fresh web to a running web, said webs having portions thereof arranged in adjacent aligned superposed paths, which splicer comprises relatively displaceable clamping means for clamping said Web portions together along a common path preparatory to splicing, a cutter for simultaneously cutting both webs transversely while they are pressed together by the clamping means, means for applying a tape splice to the adjacent end portions of the webs produced by said cutter, and butt control means operative to displace one of the freshly cut web end edges a small distance away from the other such end edge before such web ends are taped together.
  • a butt splicer according to claim 2, wherein said butt control means comprises an elongated bar extending transversely of the common path of the webs and mounted for displacement in a perpendicular direction towards and away from said path from an inoperative position to an operative position projecting at one end a small distance into said path from said clamping surface.
  • a butt splicer according to claim 1 including braking means for applying a braking force to the running web to arrest said web during the splicing operation.
  • a butt splicer according to claim 1 including means for removing from said common path the cut-01f end portion of one of said webs.
  • clamping means includes a stationary head on one side of the Web path and on the other side of the web path a movable head which is adapted for displacement into and out of clamping engagement with said stationary head.
  • a butt splicer according to claim 9 wherein said two clamping elements are mounted on a common frame for movement into clamping engagement with said stationary head.
  • a butt splicer according to claim 9 wherein said butt control means comprises an elongated bar extending transversely of the common path of the webs and mounted for displacement in a perpendicular direction towards and away from said path from an inoperative position to an operative position projecting at one end a small distance into said path from said clamping surface, and one of said clamping elements is adapted to cooperate wigh said butt control bar and includes two pressure pads spaced apart along the common web path to define therebetween a depression to receive the projecting end of said butt control bar when in said operative position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Replacement Of Web Rolls (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)
US00110483A 1970-01-29 1971-01-28 Butt splicer for butt-joining a fresh web to a running web Expired - Lifetime US3746599A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB437470 1970-01-29

Publications (1)

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US3746599A true US3746599A (en) 1973-07-17

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US00110483A Expired - Lifetime US3746599A (en) 1970-01-29 1971-01-28 Butt splicer for butt-joining a fresh web to a running web

Country Status (8)

Country Link
US (1) US3746599A (de)
JP (1) JPS4937810B1 (de)
BE (1) BE761564A (de)
CA (1) CA960561A (de)
DE (1) DE2101116C3 (de)
FR (1) FR2075632A5 (de)
GB (1) GB1333083A (de)
SU (1) SU502600A3 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120739A (en) * 1975-11-19 1978-10-17 Agfa-Gevaert, N.V. Butt splicer for butt-joining a fresh web to a progressing web
US4289556A (en) * 1979-08-06 1981-09-15 Paper, Inc. Method and apparatus for splicing folded paper
US6059710A (en) * 1998-12-24 2000-05-09 Kimberly-Clark Worldwide, Inc. Process for cutting of discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
US6074333A (en) * 1998-12-24 2000-06-13 Kimberly-Clark Worldwide, Inc. Machine for cutting discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
US6165306A (en) * 1998-06-01 2000-12-26 Kimberly-Clark Worldwide, Inc. Process and apparatus for cutting of discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
CN110304438A (zh) * 2019-07-22 2019-10-08 黄山富田精工制造有限公司 上料组件及采用该组件的上料机器人

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2248569C3 (de) * 1972-10-04 1981-05-27 Agfa-Gevaert Ag, 5090 Leverkusen Vorrichtung zum Verbinden einer von einer Wickelrolle ablaufenden Bahn mit einer neuen Bahn
DE2862089D1 (en) * 1977-10-12 1982-12-23 Agfa Gevaert Nv Method for the continuous coating of webs having spliced joints
US4561924A (en) * 1982-10-05 1985-12-31 Hope Henry F Automatic material splicer for photographic materials
FR2648080B1 (fr) * 1989-06-08 1991-10-11 Saint Gobain Vitrage Procede et dispositif de fabrication d'une feuille continue de matiere plastique par coulee a l'etat liquide sur un support mobile comprenant des plaques de verre juxtaposees
IT1264090B1 (it) * 1993-03-25 1996-09-10 Gd Spa Metodo e dispositivo per la giunzione automatica di nastri svolti da bobine.
DE102006003200A1 (de) * 2006-01-24 2007-08-02 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Verfahren zum Splicen von Material-Bahnen und Splice-Vorrichtung
RU2687471C1 (ru) * 2016-02-29 2019-05-13 Юничарм Корпорейшн Способ стыковки материала и устройство подачи материала
RU2705964C1 (ru) * 2019-04-25 2019-11-12 Акционерное общество "Кронштадт" Способ изготовления длинномерных пустотелых композитных деталей с замкнутым контуром
CN112811225B (zh) * 2021-02-09 2024-06-04 无锡先导智能装备股份有限公司 换卷装置及贴胶设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606136A (en) * 1952-08-05 Apparatus- foe
US3024157A (en) * 1958-08-22 1962-03-06 Congoleum Nairn Inc Web splicer
US2987108A (en) * 1959-02-02 1961-06-06 Mercury Engineering Corp Web butt splicer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120739A (en) * 1975-11-19 1978-10-17 Agfa-Gevaert, N.V. Butt splicer for butt-joining a fresh web to a progressing web
US4289556A (en) * 1979-08-06 1981-09-15 Paper, Inc. Method and apparatus for splicing folded paper
US6165306A (en) * 1998-06-01 2000-12-26 Kimberly-Clark Worldwide, Inc. Process and apparatus for cutting of discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
US6520236B1 (en) 1998-06-01 2003-02-18 Kimberly-Clark Worldwide, Inc. Process and apparatus for cutting of discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
US6527902B1 (en) 1998-06-01 2003-03-04 Kimberly-Clark Worldwide, Inc. Process and apparatus for cutting of discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
US6059710A (en) * 1998-12-24 2000-05-09 Kimberly-Clark Worldwide, Inc. Process for cutting of discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
US6074333A (en) * 1998-12-24 2000-06-13 Kimberly-Clark Worldwide, Inc. Machine for cutting discrete components of a multi-component workpiece and depositing them with registration on a moving web of material
CN110304438A (zh) * 2019-07-22 2019-10-08 黄山富田精工制造有限公司 上料组件及采用该组件的上料机器人

Also Published As

Publication number Publication date
FR2075632A5 (de) 1971-10-08
CA960561A (en) 1975-01-07
DE2101116C3 (de) 1981-04-23
SU502600A3 (ru) 1976-02-05
DE2101116B2 (de) 1980-07-03
BE761564A (nl) 1971-07-14
JPS4937810B1 (de) 1974-10-12
GB1333083A (en) 1973-10-10
DE2101116A1 (de) 1971-08-05

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