US3912571A - Roll product with manually graspable tail end and manufacture thereof - Google Patents

Roll product with manually graspable tail end and manufacture thereof Download PDF

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Publication number
US3912571A
US3912571A US476017A US47601774A US3912571A US 3912571 A US3912571 A US 3912571A US 476017 A US476017 A US 476017A US 47601774 A US47601774 A US 47601774A US 3912571 A US3912571 A US 3912571A
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US
United States
Prior art keywords
tail portion
roll product
fold
adhesive
convolution
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
US476017A
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English (en)
Inventor
Ellsworth A Hartbauer
Henry W Rehr
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.)
Fort James Corp
Original Assignee
Crown Zellerbach Corp
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 Crown Zellerbach Corp filed Critical Crown Zellerbach Corp
Priority to US476017A priority Critical patent/US3912571A/en
Priority to DE19752510610 priority patent/DE2510610A1/de
Priority to AU79111/75A priority patent/AU488907B2/en
Priority to CA223,191A priority patent/CA1015339A/en
Priority to JP4286675A priority patent/JPS5546336B2/ja
Priority to GB16854/75A priority patent/GB1478763A/en
Priority to IT23950/75A priority patent/IT1038637B/it
Priority to US05/574,843 priority patent/US3960272A/en
Priority to SE7506111A priority patent/SE404599B/xx
Priority to NL7506341A priority patent/NL7506341A/xx
Priority to BE156904A priority patent/BE829729A/xx
Priority to FR7517275A priority patent/FR2275393A1/fr
Application granted granted Critical
Publication of US3912571A publication Critical patent/US3912571A/en
Priority to CA270,505A priority patent/CA1013729A/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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/29—Securing the trailing end of the wound web to the web 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4144—Finishing winding process
    • B65H2301/41441—Finishing winding process and blocking outer layers against falling apart
    • B65H2301/41442—Specified by the sealing medium sealing used
    • B65H2301/414421—Glue or hot-melt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4144—Finishing winding process
    • B65H2301/41441—Finishing winding process and blocking outer layers against falling apart
    • B65H2301/41442—Specified by the sealing medium sealing used
    • B65H2301/414428—Folding of trailing end

Definitions

  • Apparatus structure and method steps are provided whereby the tail portion of the roll product is positioned so that the free end thereof is spaced from a wound portion of the roll product.
  • a fold is then provided in the roll product tail portion and a quantity of adhesive is applied to the roll product at a predetermined location thereon.
  • the tail portion is then wound about the roll product wound portion and the fold is secured to the roll product convolution underlying same with said adhesive.
  • a completed roll product is thus formed comprising an elongated sheet of flexible material wound to provide a plurality of convolutions including the outer tail portion convolution.
  • the fold formed in the tail portion comprises a plurality of tail portion segments disposed in substantially parallel relationship with one of the segments terminating with a free end.
  • the fold is in abutting engagement with an underlying convolution of the sheet material and releasably secured thereto.
  • the releasably secured fold is adapted for manual grasping by the user of the roll product whereby release of the secured fold and unwinding of the roll product are facilitated.
  • the present invention relates to an improved roll product and an improved method and apparatus utilized in the manufacture of such roll product.
  • a number of arrangements are disclosed in the prior art whereby the tail portion or outer terminal convolution of a roll product such'as paper toweling, toilet tissue, and the like, is secured to the underlying convolution thereof.
  • attention is directed to U.S. Pat. No. 3,393,105 which issued July 16,- 1968 to Clair W.
  • the adhesive securing operation is carried out by rotating the roll product cant in a direction tending to wind the tail portion thereabout, unwinding-the tail portion therefrom, depositing a predetermined quantity of adhesive directly onto the tail portion while the tail porting is unwound therefrom at a pre-establis'hed location adapted to underlie the rewound tail portion, and rewinding the tail portion about the roll product so that the tail portion overlies the adhesive which thereby secures'the tail portion to the convolution underlying same.
  • the apparatus and methods disclosed in the aforementioned patent and application are in general quite satisfactory, there are certain characteristics of the completed roll product produced thereby that could be advantageously improved upon.
  • the single ply or multi-ply roll products produced by the apparatus and methods of the aforementioned patent and application have a common characteristic; that is, the tail portion thereof lies in abutting engagement with the underlying convolution as a singlelayer of the single or multi-ply material of which it is comprised.
  • the roll products produced according to the teachings of the aforementioned patent and application offer significant advantages over prior art roll products insofar as easy-opening characteristics are concerned, some difficulties arestill encountered on occasion by the purchaser insofar as starting or opening of the final roll product featuring the adhesively secured tail portions is concerned.
  • the roll products produced according to the teachings of the aforementioned patent and application share some of the defects, although to a lesser extent, of conven-- tional prior art roll products insofar as opening characteristics are concerned.
  • Such undesirable opening characteristics include lack of a readily graspable element to start the roll, inadequate material strength at the location of manual grasping such that elongated tears or rips in the roll product material are inadvertently made by the customer, inadvertent separationof piles upon opening of the roll in the case of multi-ply roll product materials, and an overall package appearance that features a somewhat raggedtail portion free end.
  • a structurally simple but reliable apparatus and a method are provided for the manufacture.
  • a roll product incorporating a manually graspable element in the form of a fold in the tail portion of the roll product that is releasably secured to an underlying convolution of the roll product as by means of adhesive.
  • means is provided for positioning the tail portion of the roll product so that the free end of the tail portion is spaced from a wound portion of the roll product. Further, means is provided for forming a fold in the tail portion after positioning thereof by the positioning means.
  • Applicator means is then utilized to apply adhesive onto the roll product at a predetermined location thereon after positioning of the tail portion and means is provided for rotating the roll product to wind the tail portion onto the wound portion after formation of the fold whereby the fold is brought into engagement with an underlying roll product convolution and said adhesive is disposed therebetween.
  • the roll product manufactured on apparatus accordingto'the present invention and by means of the steps of the method of the present invention comprises an elongated sheet of flexible material wound to provide a plurality of convolutions and having a tail portion.
  • a fold is formed in the tail portion, said fold comprising a pluralityof tail portion'segments disposed in substantiallyparallel relationship with one of said segments terminating with a free end, and said fold being in abutting engagement with an underlying convolution of said 3. sheet material.
  • Securing means' is provided to releasably secure'the fold to the underlying convolution and the fold thus securedis adapted for manual'grasping by the user of the roll product whereby release of the secured fold and unwinding of the roll product are facili tated.
  • FIG. 1 is a perspective view of apparatus embodying the present invention
  • FIG. 2 is a broken transverse sectional view along the line 2 2 of FIG. 1;
  • FIG. 3 is a broken frontal 'elevational view showing a portion of the infeed side of the apparatus of FIG. 1;
  • FIG. 4 is 'a longitudinal sectional view, partially broken away, taken along the line 4-'-4 of FIG. 3;
  • FIG'. 5 is a longitudinal sectional view, partially broken away', taken along the line 55 of FIG. 3;
  • FIG. 6 is a perspective schematic view showing elements of the'fold forming mechanism of the apparatus of FIG. '1;
  • FIG. 7 isan enlarged end view taken along the line 77 of FIG. 6; I
  • FIG. 8 is an enlarged partially sectional end view showing selected details of the fold forming mechamsm-;' t
  • FIG. 9 is a simplified schematic presentation of components of 'the electrical'circuitry used to control the fold forming structure of the present invention.
  • FIGS. 10A-l0H arediagrammatic views respectively illustrating successive operations in a complete functional cycle of the apparatus
  • FIG. 11 is a perspective view illustrating an individual roll product of toilet tissue constructed in accordance with the teachings of the present invention
  • FIG. 12 is an enlarged view taken along the line l2--l2'of FIG..1I showing details of the folded tail portion secured to the underlying roll product convolution
  • FIG. 1-3 is a view similar to FIG. 12 illustrating the tail portion fold being-detached from the convolution normally underlying same;
  • FIG. 14 is a view similar to FIG. 11 but illustrating the tail portion fold after it has been detached from the convolution normally underlying same;
  • FIG 15 is a perspective view illustrating a roll product of paper towell'ing constructed in accordance with the teachings of the presentinvention.
  • Apparatus 10 constructed in accordance with the teachings of the present invention is illustrated.
  • Apparatus 10 includes an infeed'conveyor generally designated with the numetal 12 which is adapted to position the-cants orilogs of roll product into operative position relative to' the apparatus'l0.
  • the .roll' product comprising a paper tissue material, such as-that utilized in the manufacture of individual rolls of toilet tissue;-
  • Theinfeed conveyor utilized in apparatus 10. may be completely'conventional,and as shown in FIG.
  • the endless belt I4 is entrained about the usual drive and idler rollers, such as the idler roller 20.
  • a support pad or platform 22 may be disposed along the undersurface of the forwardly advancing top leg or reach of the belt to cooperate therewith in supporting the weight of each cant being conveyed thereby.
  • a portion of a roll product in the form of a cant 24 isillustrated as being conveyed by endless belt 14into' operative association with apparatus 10.
  • the roll product cant 24' may be wound from a web of any suitable flexible material as, for example, cloth of ei ther natural or synthetic fibers, plastic materials, metallic foils, and papereither single ply or multi-ply.
  • the roll product 24 will be a cant of toilet tissue which will be cut into conventional toilet tissue roll lengths and then enclosed in appropriate wrappers after the tail portion of the cant has been secured to the convolution underlying same.
  • the roll product or cant 24 may be of any suitable length and the apparatus is designed to accommodate predetermined maximum lengths. With specific reference to a cant oftoilet tissue, the length thereof depends upon theqcharacteristics of the rewinding machinery and there is no particular standard 'in the paper industry. However, typical lengths are 55", 66", and 92".
  • Apparatus'l0 includes a single operating station at which the roll product cant 24zIS located during the time that allof the various functions are performed thereon that consummate'in a fold formed in the tail portion of the cant being-secured to the immediately subjacent convolution.
  • Such station is illustrated in FIGS. 10A through 10H, and itisdefined at its lowermost extremity by a pair of longitudinally extending, transversely spaced and substantially parallel rollers or shafts 26 and 28 that are continuously'rotating in a clockwise direction, as viewed in these figures, and receive and support the cant 24 thereon.
  • the cant 24 is displaced from the belt 14 of the infeed conveyor into the operating station upon theshafts 26 and 28 so as .to be rotated thereby in a counterclockwise direction, As the cant 24 is rotated, the; tail or free end portion 30 thereof is upwrapped therefrom, and an adhesive is applied to the cant at an adhesive station generally denoted by means of reference numeral 32. Also as the cant is rotated, a fold is provided in the tail or free end portion 30 as it is being 'rewound about, the cant.
  • the fold is formed at the extreme free end of the tail portion at a tail forming stationdenoted generally by means of reference numeral 34. Due to the continued rotation of the cant by rollers 26and 28, the tail portion is wrapped about the cant and the fold formed therein is adhesively secured to the underlying convolution onto which the adhesive was applied.
  • the cant 24 is thereafter displaced laterally from the operating station to a discharge mechanism including in the particular apparatus shown, an inclined chute or platform 36.
  • a cant is illustrated in phantom in three consecutive positions it assumes during operation of apparatus 10.
  • the toilet tissue cant is then delivered to cutting or severing apparatus (not shown) ,which operates to subdivide the relatively long cants into individual rolls which are delivered to wrapping mechanism (not shown) which serves to package the individual rolls within a cellophane or other wrapper.
  • cutting or severing apparatus (not shown) ,which operates to subdivide the relatively long cants into individual rolls which are delivered to wrapping mechanism (not shown) which serves to package the individual rolls within a cellophane or other wrapper.
  • the severing apparatus and the wrapping apparatus may be completely conventional and do not comprise a part of the present invention.
  • the tail securing ap paratus 10 includes frame structure of standard and appropriate character generally indicated in its entirety by the reference numeral 40. It will be understood that such frame structure comprises the usualchannels, brackets, end walls and similar elements; and since arrangements of this type are old and very well-known, the frame structure will not be described in detail and the various elements thereof will simply be considered to be a part of the composite frame structure with the exception of the end components 42 and 44.
  • the infeed conveyor 12 is disposed along the infeed side of the apparatus, and the support element 22 (FIG. 2) is welded or otherwise fixedly secured to the frame structure 40.
  • a rod or shaft 46 equipped at longitudinally spaced locations therealong with a plurality of pusher arms 48 which are constrained upon the shaft (such as by means of clamp collars) so as to rotate therewith and to be prevented from axial displacements relative thereto.
  • the pusher arms project outwardly and downwardly from the shaft 46, and at their lower outer ends they are connected together by a pusher bar 50.
  • the pusher bar 50 in one position thereof is located a spaced distance above and outwardly from the conveyor 12 and any cant 24 supported thereon, and such location of the bar may be considered to represent the cant infeed position thereof.
  • the pusher assembly defined by the shaft 46, arms 48, and bar 50 is adapted to be rotated or displaced angularly in a clockwise direction (as viewed in FIGS. 2 and 10A) from the infeed position shown in these Figures into the position shown in FIG. 10B wherein the pusher bar 50 has traversed an arcuate path of the order of 45 and is disposed inwardly of the conveyor 12.
  • the function performed by the pusher as sembly in traversing such arcuate path is to displace a cant 24 from the infeed conveyor 12 and into the operating station wherein it is supported upon the shafts 26 and 28. Following such displacement of a cant into the operation station, the pusher assembly is returned to its initial cant-infeed position shown in FIG.
  • Angular reciprocal displacement of the pusher assembly may be effected by any suitable drive mechanism, for example, the drive mechanism associated with a similar pusher assembly disclosed in the aforementioned copending application Ser. No. 194,159, filed Nov. 1, 1971.
  • a drive mechanism of this type is indicated generally by reference nu meral 56 in FIG. 4.
  • rollers or shafts 26 and 28 are operated by means of any suitable driving mechanism 58 (FIG. 5) in a clockwise direction as viewed in FIGS. 10A through 10H.
  • any cant 24 supported thereby is continuously rotated in a counterclockwise direction as illustrated by means of the arrows in FIGS. 10C through 106.
  • tail accelerating means located at the operating station of the apparatus which positions the tail portion on the upper flat support surface of inclined chute or platform 36 with the free end of the tail portion spaced from the remaining wound portion of the roll product.
  • the unwinding is accomplished by air under pressure being directed toward the tail portion 30 from a gaseous discharge means which in the illustrated embodiment comprises a single nozzle structure 52 extending along the cant generally from end to end of the apparatus as best shown in FIG. 1.
  • the nozzle structure is fixedly located and as illustrated is in the form of an elongated hollow tubular manifold provided therealong with a plurality of longitudinally spaced apertures 54 as may be seen most clearly with reference to FIGS. 2 and 4.
  • Apertures 54 are inclined with respect to a horizontal plane at an angle of the general order of 45so as to facedownwardly and inwardly from a position slightly below the shaft 46 and inwardly thereof.
  • the elongated nozzle structure 52 is connected through a conduit (not shown) with a source of compressed air. Communication may be established between the source of compressed air and the nozzle structure by either a manually operable valve or preferably an automatically controlled valve of the type illustrated in aforementioned copending application Ser. No. 194,159.
  • compressed air is supplied to nozzle structure 52 as cant or roll product 24 is being rotated counterclockwise (as shown in these figures).
  • the compressed air passes through the longitudinally spaced apertures 54 toward the cant 24 at an angular inclination such that when the tail portion 30 is rotated into operative association with the air blast, it is unwound from the cant and extended along the platform 36 in substantially planar relationship therewith with the outermost extremity or free end of the tail portion being spaced from the wound portion of the roll product remaining supported by shafts 26 and 28.
  • the supply of air to the nozzle structure 52 is then terminated either manually or preferably automatically as taught in application Ser. No.
  • the gaseous discharge from the nozzle structure 52 passes over the cant tending first to. lift the tail portion 30 therefrom by negative pressure (as indicated in FIG. 10C) and then to enter the space intermediate the tail portion and subjacent convolution to accelerate the tail by application thereto of a positive gaseous pressure force.
  • Adhesive is applied to the roll product or cant 24 at a predetermined time in each cycle of operation of apparatus 10.
  • a measured quantity of liquid adhesive is discharged directly onto the cant after the tail portion thereof has been positioned with the free end thereof spaced from the wound cant portion as previously described.
  • the adhesive could be alternatively applied directly to the tail portion; however, applying it to the wound portion of the cant itself is preferred.
  • the adhesive employed is preferably a water-soluble adhesive so that rejected cants and rolls formed by subdividing same can be recycled through conventional papermaking processes without the necessity of removing the adhesive prior to recycling.
  • the particular apparatus being considered has been found to function in an exceedingly satisfactory manner using a hot melt adhesive in the form of a water-soluble wax applied at a temperature of from approximately 160F. to 170F.
  • the structure utilized to apply adhesive to cant 24 is located at the operating station of apparatus 10 and, as is most evident in FIGS. 1, 2 and 4, it comprises a plurality of separate adhesive applicator units or modules respectively denoted with the numerals 60A through 60D, there being four such units in the particular apparatus illustrated.
  • the individual units 60A 60D may be identical and they are preferably removably mounted so that any particular unit may be removed for servicing without disturbing the other units.
  • the adhesive applicator structure will not be described in detail since it may be of any suitable construction.
  • the adhesive applicator structure may be considered to be identical to that disclosed in detail in the aforementioned US. patent application Ser. No. 194,159.
  • each adhesive applicator unit 60 comprises an elongated casing 62 of generally rectangular cross section and defining a relatively large reservoir therewithin adapted to receive a quantity of adhesive so as to provide an available supply thereof and a plurality of dispensing nozzles 68 supported by suitable support means in spaced apart relationship and in communication with the casing reservoirs.
  • predetermined quantities of adhesive are ejected from the various discharge nozzles 68 onto the cant convolution disposed thereunder, which is the convolution normally underlying the tail portion when said tail portion is completely wound thereabout.
  • sensing means responsive to the position of the tail portion 30.
  • sensing means comprises a photosensitive detector including, as shown best in FIGS. 2 and 4, a light emitting photoelectric tube or cell 70 supported by adjustable bracket mechanism generally denoted by means of the refer ence numeral 74 mounted above platform 36.
  • adjustable bracket mechanism generally denoted by means of the refer ence numeral 74 mounted above platform 36.
  • mirror 78 Disposed below platform 36 and in registry with an elongated aperture 76 formed therein is a mirror 78.
  • the photoelectric cell 70 and mirror 78 cooperate to detect the pressure or absence of acant tail portion 30 along the platform 36.
  • Mirror 78 is prefera- I bly adjustably mounted in any well-known manner so that alignment with photoelectric cell may be maintained even upon movement of said cell as will now be described.
  • adjustable bracket mechanism 74 which is used to support photoelectric cell comprises a bracket 88 to which the housing of photoelectric cell 70 is fixedly attached by any suitable means as by screws or the like.
  • the leg ofbracket 88 remote from photoelectric cell 70 is fixedly secured by suitable fasteners to a second plate 92 which is pivotally mounted on a pin 94 affixed to the apparatus framework.
  • pivotal movement of plate 92 and the structure dependent therefrom including photoelectric cell 70 may be effected upon turning of a manually rotatable adjustment shaft 102 to which a manually graspable nob element 104 is fixedly secured.
  • Shaft 102 is threaded to engage with internal threads formed in a shaft supporting bracket 106, said shaft supporting bracket 106 being fixedly mounted on the apparatus by a plate 108.
  • the end of shaft 102 remote from the nob element is beveled and engages plate 103 in the vicinity of a generally V-shaped recess formed in said plate generally conforming to the shape of the beveled end of shaft 102.
  • a helical tension spring 110 Disposed between plate 92 and bracket 106 and having its ends secured thereto is a helical tension spring 110.
  • Spring 1 10 continuously biases plate 92 so that said plate will move in a clockwise direction (as viewed in FIG. 4) unless otherwise restrained. Restraint against movement is provided by the cooperation between adjustment shaft 102 and plate 92 andupon rotation of shaft 102 the position of plate 92 and its dependent structure including photoelectric cell 70 may be suitably adjusted.
  • a second photoelectric cell is also mounted on plates 88 and 92. While first photoelectric cell 70 is operatively associated with the adhesive applicator unit to eject adhesive onto the cant at a predetermined location on the wound portion thereof, second photoelectric cell 120 is operatively associated with structure adapted to form a fold at the end of the cant tail portion.
  • chute or platform 36 is comprised of two platform segments, a first segment 124 and a second segment 126, both constructed of plate material such as steel plate so as to cooperate in the formation of a substantially flat surface upon which the cant tail end is positioned by the air blast being emitted from nozzle structure 52.
  • the platform segments are spaced from one another to define an elongated opening or aperture 128.
  • Aperture 128 is broken up into individual aperture segments 130 by bridge members 132 which are an integral part of second platform segment 126 which extend into abutting engagement with first platform segment 124 in the manner il lustrated.
  • Platform segments 124 and 126 aresecu'red as by means of metal screws to an underlying supporting framework 134 of substantially rectangular configuration and including longitudinal framework elements 136 and side framework elements 140 (FIG. 7).
  • Disture segment 130 and each blade 186 is of a length and width that will permit it to freely pass through the corresponding aperture without engaging platform seg ment 126 or the bridge members 132 defining the sides of the individual aperture segments.
  • Blades 186 are normally disposed below the upper surface of platform 36. When the blades are in this retracted position the end rods 146 and 148 of the pneumatic cylinder 144 connecting structure end rod 146 is secured to tie rod 150 and end rod 148 is secured to tie rod 152.
  • Tie rods 150 and 152 are slidingly positioned near the outermost extremities thereof within apertures formed in supports 154 and 156, respectively, which are secured to framework element 136 and serve to maintain the tie rods substantially parallel to said framework element.
  • Tie rod 150 at the outermost extent thereof is secured to a length of drive chain 158 which cooperates with and makes a 90 turn about a sprocket wheel 160 (FIGS. 6 and 7) freely rotatably mounted upon a support pin 162 fixedly positioned on supporting framework 134.
  • chain 158 proceeds into engagement with a drive sprocket 164 fixedly mounted on an elongated drive shaft 166 which extends the full length of supporting framework 134 and is rotatably mounted with respect thereto in any desired manner.
  • Drive shaft 166 includes an elongated central component having a rectangular cross section and integral end components having circular cross section upon which the shaft is rotatably journalled.
  • a sprocket wheel 168 which is freely rotatably mounted upon pin 170 depending from side framework 134.
  • the chain then makes another substantially 90 loop and is connected at its end to an elongated tie rod 172 slidably mounted for axial movement with respect to framework 134.
  • elongated tie rod 172 is secured to a second length of chain 174. From its point of interconnection with tie rod 172 chain 174 loops about freely rotatably mounted sprocket wheel 176, a second drive sprocket 178 fixedly mounted on elongated drive shaft 166 at the end thereof remote from drive sprocket 164 and then about another freely rotatably mounted sprocket wheel 180. The chain 174 is then connected to reciprocally mounted tie rod 152. It will thus be seen that the end rods 146 and 148 of double-ended pneumatic cylinder 144 are operatively interconnected with elongated drive shaft 166 such that a movement of the end rods to the left (as viewed in FIG.
  • Suitable linkages may be provided in chain lengths 158 and 174 to provide a 90 twist therein to facilitate their turning about the sprockets.
  • elongated drive shaft 166 has mounted thereon a plurality of blade assemblies 182 each blade assembly 182 comprising a 90 angle member 184 having one leg thereof attached directly to the rectangular component of the shaft as by means of threaded fasteners and a blade 186 attached to the other leg of the angle member also as by means of threaded fasteners.
  • Blades 186 are preferably constructed of spring steel or other similar material having some degree of flexibility.
  • Each blade assembly 182 is disposed in registry with an aperare disposed in the position illustrated in FIG. 5. Application of air into the interior of the cylinder to' the left of the piston disposed therein will move the end rods in the opposite direction and cause clockwise rotation of shaft 166 as viewed in FIG.
  • FIGS. 10A through 10H inclusive respectively illustrate various stages of such cycle of operation.
  • a cant 24 has been advanced by infeed conveyor 12 into operative position with respect to apparatus 10.
  • such apparatus may include a switch system adapted to energize the apparatus upon positioning of cant 24 in the illustrated position.
  • the switch system may be similar to that utilized in US. application Ser. No. 194,159 and include a displaceable arm 190 adapted to be engaged by a cant and displaced thereby to energize apparatus 10 through a suitable switching mechanism.
  • a motor (not shown) associated with shaft 46 is actuated to cause pivotal movement of pusher bar 50 from the position illustrated in FIG. 10A to the position of FIG. 10B so that cant 24 is displaced to the left by the pusher bar 50 and positioned upon rollers 26 and 28, the drive mechanism 58 associated with the rollers also having been actuated upon energization of apparatus 10 to rotate the rollers in a clockwise direction.
  • Cant 24 upon positioning upon rollers 26 and 28 thus begins to rotate in a counterclockwise direction as illustrated in FIG. 10C.
  • shaft 46 reverses direction and pusher bar 50 returns to its initial position as illustrated in FIG. 10C through any suitable mechanism.
  • nozzle structure 52 communicates with a suitable pressurized air source (not shown) thus causing air to be discharged from apertures 54 in the direction of roll product 24 as it is being rotated.
  • Communication may be established between nozzle structure 52 and a source of compressed air through any suitable mechanism such as a solenoid controlled valve of the type illustrated for example in US. application Ser. No. 194,159.
  • Discharge of air from nozzle structure 52 causes tail portion 30 of cant or roll product 24 to unwind from the cant due to its acceleration under the impact of the compressed air, as shown in FIG. 10C. After the tail portion 30 has been positioned on platform 36 in the manner illustrated in FIG.
  • a suitable mechanism such as the aforementioned solenoid valve terminates communication between nozzle structure 52 and the compressed air source.
  • the tail portion 30 of the cant is unwound and is positioned upon platform 36 as shown in FIG. 10D it is disposed over elongated aperture 76 thus interrupting the light path between the photosensitive devices 70 and 120 and the reflecting surface of mirror 78.
  • the solenoid controlled valve or other control device associated with nozzle structure 52 may be operatively associated with the circuitry of one of the photosensitive devices to de-energize same so as to terminate the gaseous discharge from the nozzle apertures 54.
  • adhesive applicator units 60 may be considered to be the same as those employed in the apparatus disclosed in US. application Ser. No. 194,l59; consequently, the construction and operation of these adhesive applicator units will not be described in detail. Suffice it to say, however, that operation of the adhesive applicator units is controlled by photoelectric cell 70 and upon withdrawal of tail portion 30 from the light path between photoelectric cell 70 and its mirror reflector 78 due to the rotation of roll product 24 by rollers 26 and 28, adhesive applicator units 60 are actuated to cause a measured or predetermined quantity of adhesive 116 to be ejected from each nozzle 68 onto the underlying cant, as illustrated in FIG. 10E.
  • FIGS. 8 and 10F The next step in the operation of apparatus 10 is illustrated in FIGS. 8 and 10F wherein a fold is formed at the end of tail portion 30 during continued rotation of roll product 24.
  • the tailportion 30 continues to slide along platform 36 it reestablishes a light path between second photoelectric cell 120 and mirror 78, such light path having previously been interrupted by the initial positioning of the tail portion by nozzle structure 52. Re-establishment of the light path between photosensitive device 120 and mirror 78 results in actuation of the fold-forming means.
  • a solenoid operated air valve (not shown) is opened to establish communication between a source of pressurized air and the interior of double-ended pneumatic cylinder 144 so as to cause the end rods 146 and 148 associated therewith to move to the left as viewed in FIG. 6 thus resulting in rotational movement of drive shaft 166 and passage of blades 186 through aperture segments 130 and into engagement with the upper surface of platform segment 124.
  • the timing of the blade movement is such that the extreme outer end of the tail portion 30 is contacted by the blades 186 so that a bight 201 is formed therein as shown in FIGS. 8 and 10F.
  • the fold is formed in close proximity to the rotating wound portion of cant 24 and the integrity of the fold is retained in the brief interval between fold formation and when it is wound into engagement with the rest of cant 24.
  • the formed fold 304 is brought into engagement with an underlying convolution of the cant at the location at which adhesive has been applied thereto.
  • FIG. 9 is a simplified circuit diagram illustrating operation of the mechanism used to initiate the previously described fold-forming apparatus. Disposed in the circuit is a solenoid valve 194, a time delay relay of the off-delay type 196 and relay contacts 198 and 200 of the previously described second photoelectric cell 120. Upon energization of the apparatus 10, a control cir cuit voltage is established across the tail folder circuitry as shown. Photoelectric relay contact 198 is closed at this point while relay contact 200 is open. Upon positioning of tail portion 30 upon platform 36 in the manner previously described, the light path between photoelectric cell and mirror 78 is interrupted. This action causes contact 198 to open and contact 200 to close thus actuating time delay relay 196 closing contacts 202 thereof.
  • a second roll product or cant 24 is shown being displaced inwardly by pusher bar 50 into place on rollers 26 and 28.
  • the cant having an adhesively secured fold previously formed thereon is displaced down the chute by the newly positioned cant.
  • the displaced cant is then removed to a cutting station (not shown) at which the cam is cut into individual segments, e.g. individual rolls of toilet tissue, which are then packaged and sent to their ultimate destination.
  • FIGS. 11 through 14 illustrate a completed roll product manufactured by the method and apparatus previously described.
  • the roll product illustrated is an individual roll of toilet tissue that has been cut from a log or cant. It will be appreciated, however, that the teachings of the present invention may be applied with respect to a roll product constructed of any suitable material and of any size.
  • the illustrated roll product includes an elongated sheet of tissue wound to provide a plurality of convolutions and having a tail portion 30. As is conventional with toilet tissue, the convolutions are formed about an inner core 302 formed of paperboard or the like.
  • a fold 304 is formed in the tail portion. The fold comprises tail portion segments 306 and 308 disposed in substantially parallel relationship with segment 308 terminating with a free end.
  • the fold is in abutting engagement with an underlying convolution of the roll product.
  • Adhesive preferably but not necessarily in the form of dots 310 is spaced along the abutting surfaces of the fold and the underlying convolution thus releasably securing the fold.
  • the fold is adapted for manual grasping by the user of the roll product whereby release of the secured fold and unwinding of the roll product are facilitated.
  • the adhesive preferably but not necessarily secures the fold to the underlying convolution at a location spaced from a substantially straight fold line 312 which is substantially parallel to the longitudinal axis of the roll product.
  • FIG. 15 shows an individual paper towel roll 401 constructed in accordance with the teachings of the present invention.
  • the present invention may be utilized with polyethylene or other plastic films, webs made of synthetic pulp, laminates and virtually all other materials which lend themselves to being formed as a roll product.
  • Apparatus for securing the unaffixed tail portion of a roll product to a convolution thereof underlying said tail portion comprising:
  • applicator means for applying adhesive onto said roll product at a predetermined location thereon after positioning of said tail portion by said positioning means and the free end of the tail portion is located a predetermined distance from the wound portion of the roll product;
  • said positioning means includes a support member for supporting said roll product tail portion.
  • said fold forming means includes blade structure adapted to engage and manipulate the tail portion to form the fold.
  • said roll product rotating means is adapted to continuously wind said tail portion onto said wound portion after positioning of said tail portion, said blade structure comprising at least one blade member being pivotally mounted to move from an inoperative position to a fold forming position, said actuating means operatively associated with said pivotally mounted blade member and adapted to move said blade member from said inoperative position to said fold forming position when the free end of the tail portion comes into close proximity to said blade member due to the winding of said tail portion by the rotating means.
  • said positioning means includes a support member for supporting said roll product tail portion, said support member defining an aperture through which said blade member passes when moving from said inoperative position to said fold forming position.
  • said blade structure comprises a plurality of blades fixedly mounted in spaced relationship to one another on a selectively rotatable shaft, said support member including a plurality of support fingers extending across said aperture in alignment with the spaces between said blades, said support fingers adapted to support said tail portion and prevent said tail portion from falling into said aperture.
  • said blades are constructed of thin, flexible material.
  • Apparatus for forming a manually graspable fold in the tail portion of a roll product comprising:
  • the apparatus of claim 9 further comprising means for applying an adhesive to said roll product to releasably secure said fold to said underlying convolution.
  • said adhesive applying means comprises nozzle means through which adhesive is extruded, said nozzle means being disposed in close proximity to said rotating roll product and adapted to apply said adhesive to said underlying convolution at a location on said convolution that will be engaged by said fold upon complete winding of said roll product by said rotating means.
  • said adhesive applying means is in operative association with said sensing means and responsive to a determination by said sensing means that the tail end of said tail portion has passed a predetermined location to apply said adhesive to said roll product.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Sanitary Thin Papers (AREA)
US476017A 1974-06-03 1974-06-03 Roll product with manually graspable tail end and manufacture thereof Expired - Lifetime US3912571A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US476017A US3912571A (en) 1974-06-03 1974-06-03 Roll product with manually graspable tail end and manufacture thereof
DE19752510610 DE2510610A1 (de) 1974-06-03 1975-03-11 Rollenprodukt mit von hand greifbarem umlaufende sowie herstellung des produkts
AU79111/75A AU488907B2 (en) 1974-06-03 1975-03-14 Manufacture of roll products
CA223,191A CA1015339A (en) 1974-06-03 1975-03-25 Roll product with manually graspable tail end and manufacture thereof
JP4286675A JPS5546336B2 (enExample) 1974-06-03 1975-04-10
GB16854/75A GB1478763A (en) 1974-06-03 1975-04-23 Method of and apparatus for securing the tail portion of a roll product
IT23950/75A IT1038637B (it) 1974-06-03 1975-05-03 Methodo ed apparecchio per la fabricazione di un prodotto in rotolo avente un estremita affer rabile manualmente
US05/574,843 US3960272A (en) 1974-06-03 1975-05-05 Roll product with manually graspable tail end and manufacture thereof
SE7506111A SE404599B (sv) 1974-06-03 1975-05-28 Sett att festa det yttre endpartiet av en till en rulle upplindad materialbana vid ett underliggande varv av banan jemte apparat for genomforande av settet
NL7506341A NL7506341A (nl) 1974-06-03 1975-05-29 Produkt van opgerold materiaal met een met de hand grijpbaar staarteinddeel.
BE156904A BE829729A (fr) 1974-06-03 1975-05-30 Produit en rouleau a bout pouvant etre pris en main et methode et appareil pour le fabriquer
FR7517275A FR2275393A1 (fr) 1974-06-03 1975-06-03 Produit en rouleau a bout pouvant etre pris en main, et methode et appareil pour le fabriquer
CA270,505A CA1013729A (en) 1974-06-03 1977-01-26 Roll product with manually graspable tall end and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US476017A US3912571A (en) 1974-06-03 1974-06-03 Roll product with manually graspable tail end and manufacture thereof

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/574,843 Division US3960272A (en) 1974-06-03 1975-05-05 Roll product with manually graspable tail end and manufacture thereof

Publications (1)

Publication Number Publication Date
US3912571A true US3912571A (en) 1975-10-14

Family

ID=23890155

Family Applications (1)

Application Number Title Priority Date Filing Date
US476017A Expired - Lifetime US3912571A (en) 1974-06-03 1974-06-03 Roll product with manually graspable tail end and manufacture thereof

Country Status (10)

Country Link
US (1) US3912571A (enExample)
JP (1) JPS5546336B2 (enExample)
BE (1) BE829729A (enExample)
CA (1) CA1015339A (enExample)
DE (1) DE2510610A1 (enExample)
FR (1) FR2275393A1 (enExample)
GB (1) GB1478763A (enExample)
IT (1) IT1038637B (enExample)
NL (1) NL7506341A (enExample)
SE (1) SE404599B (enExample)

Cited By (12)

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AT953U1 (de) * 1994-08-02 1996-08-26 Tela Papierfabrik Ag Papierrolle mit einem endblattverschluss, verfahren zu deren herstellung sowie vorrichtung zur durchführung des verfahrens
US5636810A (en) * 1992-08-06 1997-06-10 Beloit Technologies, Inc. Apparatus for applying adhesive to a web roll being wound in a winding machine
US5702555A (en) * 1993-09-20 1997-12-30 Schweitzer-Mauduit International, Inc. Method of releasably securing the end of a roll of material
US20050058752A1 (en) * 2003-09-17 2005-03-17 Deason Howard Thomas Multi-ply products comprising a consumer accessible tab
US20050199761A1 (en) * 2004-03-15 2005-09-15 Fort James Corporation Reduced ply separation tail seal
WO2006070431A1 (en) * 2004-12-28 2006-07-06 Fabio Perini S.P.A. Device and method for closing the tail end of logs of web material and relative logs obtained therewith
CN102862847A (zh) * 2011-07-05 2013-01-09 美卓造纸机械公司 纤维幅材机的分切卷绕机中的配置结构
WO2015113978A1 (en) * 2014-01-29 2015-08-06 Universal Tissue Technology S.R.L. Device for closing the tail end of a roll of web material, and method
US20180009618A1 (en) * 2013-03-13 2018-01-11 Georgia-Pacific Consumer Products Lp Systems and methods for parent roll tail reduction
CN108706402A (zh) * 2018-07-12 2018-10-26 国网宁夏电力有限公司银川供电公司 电缆线盘防滚动装置
CN113353690A (zh) * 2021-08-09 2021-09-07 常州市展明薄膜科技有限公司 新型硅胶保护膜自动化输送包装生产线
US20210403267A1 (en) * 2018-11-16 2021-12-30 Windmöller & Hölscher Kg Method and Device for Successively Winding a Film Web, and Film Roll

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DE9210495U1 (de) * 1992-08-06 1993-12-02 Beloit Corp., Beloit, Wis. Rollenwickelmaschine mit Befestigungseinrichtung für Bahnenden
DE102005016467B4 (de) * 2005-04-11 2007-08-16 Koenig & Bauer Aktiengesellschaft Verfahren zur Sicherung eines Bahnanfangs einer Restrolle in einem Rollenwechsler
DE102007037809B4 (de) * 2007-08-08 2013-09-26 Mst-Maschinenbau Gmbh Verfahren zum Aufwickeln einer Warenbahn
JP7420118B2 (ja) * 2021-06-17 2024-01-23 王子ホールディングス株式会社 個包装衛生薄葉紙ロールの製造方法

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US3396899A (en) * 1966-12-22 1968-08-13 Owens Illinois Inc Composite container and sealing means therefor
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US3553055A (en) * 1968-02-06 1971-01-05 Crown Zellerbach Canada Ltd Apparatus for adhering an outer tail portion of a wound roll to an underlying convolution
US3807621A (en) * 1971-04-02 1974-04-30 Lion Fat Oil Co Ltd Dispensing spout of a carton box

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US2927624A (en) * 1960-03-08 Apparatus for forming tubular articles
US2333966A (en) * 1940-04-12 1943-11-09 Cornell Dubilier Electric Condenser tab attaching apparatus
US3044532A (en) * 1960-03-30 1962-07-17 Vita Mayer & Co Inc Tail sealing machine
US3093293A (en) * 1962-01-02 1963-06-11 Container Corp Container opening provision
US3162560A (en) * 1962-07-06 1964-12-22 Int Paper Co Paper roll finishing apparatus
US3393105A (en) * 1964-11-16 1968-07-16 Crown Zellerbach Corp Method and apparatus for adhesively securing the tail of a roll product to the underlying convolution thereof
US3505150A (en) * 1966-04-12 1970-04-07 Munksjoe Ab Device for fixing the terminating end of paper rolls
US3396899A (en) * 1966-12-22 1968-08-13 Owens Illinois Inc Composite container and sealing means therefor
US3553055A (en) * 1968-02-06 1971-01-05 Crown Zellerbach Canada Ltd Apparatus for adhering an outer tail portion of a wound roll to an underlying convolution
US3807621A (en) * 1971-04-02 1974-04-30 Lion Fat Oil Co Ltd Dispensing spout of a carton box

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5636810A (en) * 1992-08-06 1997-06-10 Beloit Technologies, Inc. Apparatus for applying adhesive to a web roll being wound in a winding machine
US5702555A (en) * 1993-09-20 1997-12-30 Schweitzer-Mauduit International, Inc. Method of releasably securing the end of a roll of material
AT953U1 (de) * 1994-08-02 1996-08-26 Tela Papierfabrik Ag Papierrolle mit einem endblattverschluss, verfahren zu deren herstellung sowie vorrichtung zur durchführung des verfahrens
US20050058752A1 (en) * 2003-09-17 2005-03-17 Deason Howard Thomas Multi-ply products comprising a consumer accessible tab
US7981234B2 (en) 2004-03-15 2011-07-19 Georgia-Pacific Consumer Products Lp Reduced ply separation tail seal
US20050199759A1 (en) * 2004-03-15 2005-09-15 Fort James Corporation Reduced ply separation tail seal
US7871485B2 (en) 2004-03-15 2011-01-18 Georgia-Pacific Consumer Products Lp Reduced ply separation tail seal
US20080053598A1 (en) * 2004-03-15 2008-03-06 Georgia-Pacific Consumer Products Lp Reduced ply separation tail seal
US7967933B2 (en) 2004-03-15 2011-06-28 Georgia-Pacific Consumer Products Lp Reduced ply separation tail seal
US7799402B2 (en) 2004-03-15 2010-09-21 Georgia-Pacific Consumer Products Lp Reduced ply separation tail seal
US7803442B2 (en) 2004-03-15 2010-09-28 Georgia-Pacific Consumer Products Lp Reduced ply separation tail seal
US7811648B2 (en) 2004-03-15 2010-10-12 Georgia-Pacific Consumer Products Lp Reduced ply separation tail seal
US20100300607A1 (en) * 2004-03-15 2010-12-02 Redmann Teresa M Reduced ply separation tail seal
US20100300605A1 (en) * 2004-03-15 2010-12-02 Redmann Teresa M Reduced ply separation tail seal
US20050199761A1 (en) * 2004-03-15 2005-09-15 Fort James Corporation Reduced ply separation tail seal
US7846286B2 (en) * 2004-12-28 2010-12-07 Fabio Perini, S.P.A. Device and method for closing the tail end of logs of web material and relative logs obtained therewith
US20080083521A1 (en) * 2004-12-28 2008-04-10 Mauro Gelli Device and Method for Closing the Tail End of Logs of Web Material and Relative Logs Obtained Therewith
WO2006070431A1 (en) * 2004-12-28 2006-07-06 Fabio Perini S.P.A. Device and method for closing the tail end of logs of web material and relative logs obtained therewith
CN102862847A (zh) * 2011-07-05 2013-01-09 美卓造纸机械公司 纤维幅材机的分切卷绕机中的配置结构
CN102862847B (zh) * 2011-07-05 2015-02-18 维美德技术有限公司 纤维幅材机的分切卷绕机中的配置结构
US20180009618A1 (en) * 2013-03-13 2018-01-11 Georgia-Pacific Consumer Products Lp Systems and methods for parent roll tail reduction
US10427901B2 (en) * 2013-03-13 2019-10-01 Gpcp Ip Holdings Llc Systems and methods for parent roll tail reduction
CN105980278A (zh) * 2014-01-29 2016-09-28 环球纸业技术责任有限公司 用于封合网状物材料的卷材的尾端的装置和方法
WO2015113978A1 (en) * 2014-01-29 2015-08-06 Universal Tissue Technology S.R.L. Device for closing the tail end of a roll of web material, and method
CN105980278B (zh) * 2014-01-29 2018-02-27 环球纸业技术责任有限公司 用于封合网状物材料的卷材的尾端的装置和方法
US10112795B2 (en) 2014-01-29 2018-10-30 MTorres Tissue S.r.l. Device for closing the tail end of a roll of web material, and method
CN108706402A (zh) * 2018-07-12 2018-10-26 国网宁夏电力有限公司银川供电公司 电缆线盘防滚动装置
CN108706402B (zh) * 2018-07-12 2023-07-07 国网宁夏电力有限公司银川供电公司 电缆线盘防滚动装置
US20210403267A1 (en) * 2018-11-16 2021-12-30 Windmöller & Hölscher Kg Method and Device for Successively Winding a Film Web, and Film Roll
US12017878B2 (en) * 2018-11-16 2024-06-25 Windmöller & Hölscher Kg Method and device for successively winding a film web, and film roll
CN113353690A (zh) * 2021-08-09 2021-09-07 常州市展明薄膜科技有限公司 新型硅胶保护膜自动化输送包装生产线

Also Published As

Publication number Publication date
JPS5546336B2 (enExample) 1980-11-22
JPS50155702A (enExample) 1975-12-16
BE829729A (fr) 1975-09-15
SE404599B (sv) 1978-10-16
DE2510610A1 (de) 1975-12-11
AU7911175A (en) 1976-09-16
GB1478763A (en) 1977-07-06
SE7506111L (sv) 1975-12-04
NL7506341A (nl) 1975-12-05
FR2275393A1 (fr) 1976-01-16
FR2275393B1 (enExample) 1979-01-19
CA1015339A (en) 1977-08-09
IT1038637B (it) 1979-11-30

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