WO1992018405A1 - Appareil servant a enrouler une pellicule d'un materiau en forme de bande sur une bobine - Google Patents

Appareil servant a enrouler une pellicule d'un materiau en forme de bande sur une bobine Download PDF

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Publication number
WO1992018405A1
WO1992018405A1 PCT/US1992/002840 US9202840W WO9218405A1 WO 1992018405 A1 WO1992018405 A1 WO 1992018405A1 US 9202840 W US9202840 W US 9202840W WO 9218405 A1 WO9218405 A1 WO 9218405A1
Authority
WO
WIPO (PCT)
Prior art keywords
strip
spool
web material
core
slot
Prior art date
Application number
PCT/US1992/002840
Other languages
English (en)
Inventor
David H. Lancy
Jayson J. Nelson
Joseph A. Watkins
Original Assignee
Eastman Kodak Company
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 Eastman Kodak Company filed Critical Eastman Kodak Company
Publication of WO1992018405A1 publication Critical patent/WO1992018405A1/fr

Links

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
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/28—Locating light-sensitive material within camera
    • G03B17/30—Locating spools or other rotatable holders of coiled film
    • G03B17/305—Locating spools or other rotatable holders of coiled film for roll film cameras

Definitions

  • the present invention is related to apparatus for winding onto spools strips cut from an indeterminate length of web material. More particularly, the invention concerns such apparatus for threading the lead end of such a strip into a slot in the core of a spool, winding most of the strip onto the spool and then cutting the tail end of the strip from the web.
  • the invention is particularly useful for winding a strip of light tight wrapper material together with a strip of light sensitive material such as photographic film.
  • Figure 1 shows an edge view of a strip of film 10 and a strip of protective wrapper material 12 which, for ease of illustration and explanation, are shown superimposed on one another in a flattened state prior to winding onto a well-known type of spool 14, shown partially in section.
  • the core 16 of spool 14 comprises an axially extending slot 18; and radially extending flanges 20 are provided at either end of core 16, only one flange being illustrated.
  • wrapper strip 12 is provided near its lead end 22 with an after-use label 24 which is used by the customer to secure the wrapper strip about the exposed film after the customer has unwound the film and wrapper from spool 14 and rewound the film and wrapper onto a take-up spool in a camera.
  • Label 24 is applied to wrapper strip 12 before winding onto spool 14.
  • the lead end 26 of film strip 10 is unattached to wrapper strip 12; however, the tail end 28 is attached during winding to wrapper strip 12 by an inside paster strip 30 which typically is attached to film strip 10 just after the strip is cut from the stock roll.
  • wrapper strip 12 when wrapper strip 12 is wound onto the take-up spool in a camera, film strip 10 is drawn along by inside paster strip 30. Also in the familiar manner, wrapper strip 12 is provided at its tail end 32 with an outside paster strip 34 which secures the wrapper strip about the unexposed film prior to use by the customer. To ease opening of the spool by the customer, tail end 32 typically is folded back on itself, as illustrated in Figures 1 and 3.
  • wrapper strip 12 and film strip 10 During winding of wrapper strip 12 and film strip 10, lead end 22 is threaded through slot 18 and spool 14 is rotated clockwise, as viewed in Figure 2, so that the lead portion of wrapper strip 12 is wound onto core 16. Then, lead end 26 is introduced into the nip formed between the remainder of wrapper strip 12 and the portion already wound onto core 16; so that lead end 26 becomes cinched between convolutions of the wrapper strip, after which the wrapper and film strips are wound together. The wrapper strip eventually is cut and when inside paster strip 30 is drawn into the nip, it adheres to wrapper strip 12.
  • wrapper strip 12 After an additional length of wrapper strip 12 has been wound onto the spool, the tail end of the wrapper strip is folded over to provide a convenient tab for opening the completed wound spool and outside paster strip 34 is applied around the wound spool to complete the process. As shown in Figure 3 wrapper strip 12 is notched symmetrically at its ends to facilitate both the insertion of lead end 22 and the cutting and folding of tail end 32.
  • the wrapper strip is drawn from its stock roll by a pair of intermittently rotated nip rollers which grasp the lead portion of the wrapper strip and drive the strip along a guide track into the slot in the core of the spool.
  • nip rollers can tend to scuff and mark the surfaces of the wrapper strip leading to potential sources of damage to the film strip or to an unacceptable appearance of the completed spool.
  • one side of the guide track includes a first open portion near the spool.
  • This first open portion can allow the lead end of the wrapper strip to deflect away from the desired path into the slot of the core, leading to failure to insert the lead end properly or jamming of the equipment.
  • the other side of the guide track can be pivoted away from the path near the spool.
  • a cinching head is brought into proximity with the core of the spool; so that, the lead end of the wrapper strip extending through and beyond the slot in the core will be folded partially around the core to secure the wrapper strip to the core.
  • the one nip roller is pivoted back into contact with the wrapper strip to hold it during cutting.
  • the wrapper strip is then cut at the center of the notched section shown in Figure 3.
  • a rotating cutter passes through the plane of the wrapper strip and, after cutting the strip, folds the tail end back over on itself.
  • the guide track is provided with further open portions on both sides of the path for passage of the cutter.
  • the open portion on the opposite side of the path from the rotating cutter can permit the lead end of the wrapper strip to deflect away from the desired path during operation, leading to potential damage to the lead end and jamming of the equipment
  • the folded tail end is drawn to the spool by further rotation of the spool and, as the folded tail end passes the first open portion of the guide track near the spool, the fold tends on occasion to open, leading to an undesirable irregularity in the product for the customer and potential difficulty in properly completing the wind and applying the outside paster strip 34.
  • a primary objective of this invention is to provide an improved apparatus winding a strip of web material onto a spool.
  • a further objective of this invention is to provide such an apparatus in which scuffing and marking of the strip are minimized during delivery of the strip to the spool and winding onto the spool.
  • Another objective of this invention is to provide such an apparatus in which the lead end of the strip is prevented from leaving its guide track during movement toward the slot in the spool.
  • Still another objective of this invention is to provide such an apparatus in which a separate cinching head is not required to fold the lead end of the strip about the core of the spool at the beginning of the wind.
  • Yet another objective of this invention is to provide such an apparatus in which the folded tail end of the strip is prevented from unfolding near the spool at the end of the wind.
  • a still further objective of this invention is to provide in such an apparatus a bend in the path of the strip between the cutter and the spool, to flatten the strip as it approaches the spool.
  • Another objective of this invention is to provide such an apparatus with a cutter knife capable of cutting the full width of the strip, rather than just a narrower width at periodic notches in the strip, to permit cutting the strip between notches if desired.
  • the improvements of the invention are particularly useful in.an apparatus for winding a strip of web material onto a spool having a core with a longitudinal slot for receiving the lead end of such a strip prior to winding, such apparatus being of the type including means for holding the spool with its slot positioned to receive such lead end; a source of an indeterminate length of web material; means for withdrawing a predetermined portion of such web material from the source, such portion having a lead end; means for confining such portion to movement along a path toward the slot this path having an entrance end and an exit end; first guide means, mounted near the exit end on one side of the path, for guiding such lead end into the slot; means for rotating the spool toward this first guide means after such lead end has been received in the slot whereby such portion is wound onto the core; means for causing such lead end to fold around the core as the core is rotated by the means for rotating; means for cutting such web material when such portion has been withdrawn, thereby forming a strip of such web material, such strip having a
  • the means for folding the tail end is comprised in the means for cutting.
  • means are moveably mounted near the exit end on the other side of the path, for holding such folded tail end against unfolding while such folded tail end is wound onto the core.
  • second guide means may be pivotably mounted on the other side of the path downstream of the means for cutting and the means for folding, for guiding such lead end into the entrance end.
  • Means, actuated by the means for cutting and the means for folding, may be provided for moving the means for holding to engage such folded tail end while pivoting the second guide means away from the path during operation of the means for cutting and the means for folding.
  • the means for withdrawing comprises a rotatable vacuum drum mounted near the entrance end, the vacuum drum having a plurality of cii-cumferentially spaced ports.
  • Means are provided for selectively applying vacuum to these ports to grip such web material as the vacuum drum rotates until such lead end has been guided into the slot of the spool and the spool has been rotated sufficiently to cinch the web material onto the spool. Then the vacuum is released and a flow of air is applied to these ports while the speed of the vacuum drum is gradually reduced to zero. The web material thus is supported on a cushion of air while being wound onto the core.
  • means are mounted on the means for holding the spool on the other side of the path and opposite the first guide means, for cooperating with the first guide means to guide such lead end into the slot
  • the means for causing such lead end to fold around the core also is comprised in the means for holding the spool.
  • This means for causing may comprise a cylindrical recess in the means for holding, the recess extending partially around the core as the core is rotated following insertion of such lead. end.
  • Figure 1 shows a view, partially in section, of a strip of wrapper material, a strip of film and their labels and pasters adjacent a spool of the type onto which the strips can be wound.
  • Figure 2 shows a view, partially in section, of a spool onto which the initial portion of a strip of wrapper material has been wound, just as the lead end of the film strip is about to be inserted into the nip formed by the strip of wrapper material.
  • Figure 3 shows a plan view, partially in phantom, of a strip of wrapper material, a strip of film and their labels and pasters, indicating particularly how the strip of wrapper material is notched prior to cutting the strip.
  • Figure 4 shows a front elevation view, partially in section and partially in phantom, of the apparatus according to the invention as configured for insertion of the lead end of the strip of wrapper material into the slot of the core on the spool.
  • Figure 5 shows a plan view, partially in section and partially in phantom, of the apparatus of Figure 4.
  • Figure 6 shows a view taken along line 6-6 of Figure 5.
  • Figure 7 shows a plan view, partially in phantom, of the apparatus according to the invention as configured for completion of the wind of the tail end of the strip of wrapper material onto the spool.
  • Figure 8 shows a view taken along line 8-8 of Figure 7.
  • a rigid face plate 36 which serves as a frame or support for the apparatus.
  • a length 38 of web material is drawn from a source such as a stock roll, not illustrated, and passed essentially half way around a stationary roller 40 which may be fitted with a sensor for measuring tension in length 38.
  • a source such as a stock roll, not illustrated, and passed essentially half way around a stationary roller 40 which may be fitted with a sensor for measuring tension in length 38.
  • length 38 Prior to reaching roller 40, length 38 has been provided by means not comprising a part of the present invention with longitudinally spaced notches 52 and after-use labels 24 as shown in Figure 3.
  • length 38 is passed around a conventional vacuum drum 42 having around its circumference an array of ports 44 connected in the familiar manner to a manifold, not illustrated, which can be selectively connected via a suitable vacuum gland to either a vacuum source 46 or a pressurized air source 48.
  • a motor 50 is provided to rotate vacuum drum 42.
  • Length 38 is guided from vacuum drum 42 by a stripper plate 54 which may extend into a central circumferential groove in the face of the drum. Then length 38 passes through a short stationary guide track 56 and beneath a stationary bed knife 58 which extends across the width of the web. From bed knife 58, length 38 passes into the entrance end 60 of a confined path 62 leading toward spool slot 18, as seen most clearly in Figure 6. Opposite bed knife 58, a rotary cutter knife 64 is positioned which, as shown in Figure 6, defines a portion of the lower side of path 62 at entrance end 60, before cutter knife 64 is rotated to the position of Figure 8 in order to cut wrapper strip 12 from length 38.
  • Cutter knife 64 is mounted on a shaft 66 which, as shown in Figure 7, extends through a bearing block 68 mounted to face plate 36 and supports on the other side of the face plate a face cam 70.
  • Shaft 66 is connected to a coupler 72 which is connected to a suitable servo motor, not illustrated.
  • a knob 67 on the outer end of shaft 66, as shown in Figures 4 and 7, permits cutter knife 64 to be manually rotated to cut length 38 if necessary, for example, to clear a jam of the equipment
  • cutter knife 64 preferably has a width exceeding slightly the maximum width of length 38; so that length 38 may be manually cut at any point
  • Cam 70 is engaged by a roller 74 mounted at one end of a lever 76 connected at its other end to a pivot shaft 78 which extends through and is rotatably mounted on face plate 36.
  • a spring 80 biases roller 74 into contact with cam 70.
  • shaft 78 is supported by suitable bearings 82 mounted in an upwardly extending flange 84 of a support block 86 mounted on face plate 36.
  • a thread-up guide plate 88 is mounted for rotation with shaft 78 and extended toward paper guide 56.
  • Guide plate 88 is tapered toward its entrance edge 90 which is approximately the width of the web material between notches 52.
  • spool 14 is presented for winding by a fixture 102 which holds the spool with slot 18 positioned to receive lead end 22 of wrapper strip 12.
  • Fixture 102 preferably comprises a transversely extending semi-cylindrical recess 104 sized to closely engage core 16.
  • fixture 102 also comprises one or more vacuum ports 106 located along recess 104 which engage core 16 so that vacuum applied to the ports will hold spool 14 to fixture 102.
  • Fixture 102 When fixture 102 is positioned as in Figures 4 to 6 by means not illustrated, conventional winding quills, shown schematically in Figures 5 and 7, can engage the ends of the spool in the familiar manner and pull the spool away from recess 104 by a radial distance somewhat greater than the thickness of wrapper strip 12.
  • a suitable winding quill apparatus is disclosed in the concurrently filed, commonly assigned application of Joseph A. Watkins for Apparatus for Winding Strips of Web Material onto Spools; however, the present invention is not limited to the used of that apparatus.
  • Fixture 102 also comprises a transversely extending guide foot 108 positioned on the opposite side of path 62 from lip plate 100.
  • Guide foot 108 comprises an tip edge 110 which, when fixture 102 is in the position of Figures 4 to 6, slightly overlaps the exit edge 112 of cover plate 96.
  • the underside of guide foot 108 is positioned so that it extends away from the upper edge of slot 18, so that guide foot 108 cooperates with lip plate 100 to guide lead end 22 of wrapper strip 12 into slot 18.
  • the spool 14 is then rotated clockwise as seen in Figure 6 until lead end 22 has been folded around core 16 and strip 12 has become cinched to the spool, usually in less than one rotation of the spool.
  • a pair of guide tracks 120,122 are provided which support the edges of film strip 10 as it is wound onto the spool.
  • film strip 10 is accelerated along guide tracks 120,122 so that lead end 26 enters and becomes cinched in the nip formed by the partially wound wrapper strip, after which the wrapper strip and film strip are wound together.
  • film strip 10 and wrapper strip 12 are moving at about the same velocity when the film strip engages the nip.
  • a detector may be provided at or near paper guide 56 to sense when notches 52 of the next wrapper strip comprised in length 38 reach rotary cutter knife 64, at which time winding of spool 14 is stopped; the air applied to vacuum drum 42 is stopped; vacuum is again applied to drum 42 from source 46; and vacuum is applied to track plate 92. Vacuum also is applied through a conduit 65 in cutter knife 64 to a plurality of ports spaced across the width of the knife at least in the area beneath notches 52. Rotary cutter knife 64 is then rotated counter-clockwise as viewed in Figure 6, so that length 36 is cut against bed knife 58 in the middle of notches 52.
  • tail end 32 of wrapper strip 12 is gripped by vacuum applied through conduit 65 and is folded back over on itself toward the upper side of path 62.
  • Rotary cutter knife 64 moves to the position of Figure 8, so that the folded tail end of wrapper strip 12 is held near the upper surface of air track plate 92.
  • thread-up guide plate 88 is rotated upward to the position of Figure 8, to permit the cutter knife to pass. This occurs due to the cooperation of disk cam 70, roller 74, lever 76 and pivot shaft 78, as previously discussed.
  • means are provided for holding the folded tail end against unfolding as it moves from beneath cover plate 96.
  • a pair of fold guide feet 124,126 are positioned between guide tracks 120,122, each foot comprising an undersurface 127 and a tip edge 130.
  • tip edges 130 extend far into the nip formed by wrapper strip 12 as the winding is completed, so that the folded tail end of wrapper strip 12 is prevented from unfolding.
  • Guide feet 124,126 are spaced laterally a distance necessary to permit guide foot 108 of spool handling fixture 102 to move in and out of position.
  • guide feet 124,126 are joined by a transversely extending member 132 which passes above guide track 120 and is formed integrally at its outer end with a downwardly extending leg member 134 which is mounted for rotation with the outer end 136 of pivot shaft 78.
  • Mechanism 138 essentially is a spring clip which grasps the wound spool near its ends and for this purpose comprises a support block 140 having a central boss 142 with a bore for receiving a pivot pin 144.
  • a pair of gripper arms 146,148 are pivotably mounted on pin 144 and biased apart on one side of the pivot by a compression spring 150 which extends through a bore in support block 140.
  • arms 146,148 are provided with smoothly finished recesses for engaging the outer surface of the wound spool.
  • mechanism 138 can be configured to grip core 16 of an empty spool in case a spool is not wound for some reason, as well as a fully wound spool.
  • Each gripper arm 146,148 is formed with a pair of laterally spaced fingers 152,154 which are separated by a distance chosen to ensure that the fingers will not interfere with movement of fold guide feet 124,126.
  • mechanism 138 is slipped over the spool near the end of the wind and, as the folded tail end of wrapper strip 12 leaves the path between fold guide feet 124,126 and lip plate 100, it wraps around the previous convolution of the wrapper strip and is held in place by mechanism 138.
  • the completed spool is then removed with mechanism 138 for application of outside paster 34 at another location. Spool handling fixture 102 then delivers the next spool and the process repeats.

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

Abstract

Un appareil servant à enrouler une pellicule (12) d'un matériau en forme de bande sur une bobine (14) comprend un tambour sous vide (42) qui guide de manière intermittente une longueur (38) du matériau en forme de bande au-delà d'un mécanisme de coupe (58, 64) et dans un chemin délimité (62) menant vers une fente (18) de la bobine. Un bras de guidage (108) transversal placé sur un élément fixe (102) de maniement de bobine aide l'extrémité avant de la pellicule à pénétrer la fente avant que l'élément de maniement de bobine ne soit enlevé Après qu'une partie initiale de la pellicule ait été enroulée sur la bobine, une seconde pellicule de matériau, telle qu'une pellicule photographique (10), peut être insérée dans la ligne de pincement formée par la pellicule initiale (12) après quoi les deux pellicules peuvent être enroulées ensemble. Lorsque le mécanisme de coupe est actionné pour couper la pellicule initiale (12) dans la longueur du matériau, une plaque de guidage (88) est soulevée afin de laisser le passage à l'élément de coupe et de permettre à celui-ci de se replier sur l'extrémité arrière de la pellicule (12). Une paire de bras de guidage (124, 128) pliants sont en même temps abaissés afin d'empêcher l'extrémité arrière de se déplier avant que la pellicule ne soit enroulée sur la bobine.
PCT/US1992/002840 1991-04-12 1992-04-07 Appareil servant a enrouler une pellicule d'un materiau en forme de bande sur une bobine WO1992018405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US684,424 1984-12-20
US68442491A 1991-04-12 1991-04-12

Publications (1)

Publication Number Publication Date
WO1992018405A1 true WO1992018405A1 (fr) 1992-10-29

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PCT/US1992/002840 WO1992018405A1 (fr) 1991-04-12 1992-04-07 Appareil servant a enrouler une pellicule d'un materiau en forme de bande sur une bobine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103277512A (zh) * 2013-06-17 2013-09-04 慈溪市凯宏密封设备厂 全自动缠绕机
IT201900009162A1 (it) * 2019-06-17 2020-12-17 Engraving Solutions S R L Metodo e macchina per produrre rotoli di materiale nastriforme avvolto su anime tubolari e relativo prodotto ottenuto

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341741A2 (fr) * 1988-05-13 1989-11-15 Fuji Photo Film Co., Ltd. Méthode d'enrouler un film sur une bobine et de charger la bobine et son film dans un magasin et un système pour réaliser cette méthode

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341741A2 (fr) * 1988-05-13 1989-11-15 Fuji Photo Film Co., Ltd. Méthode d'enrouler un film sur une bobine et de charger la bobine et son film dans un magasin et un système pour réaliser cette méthode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103277512A (zh) * 2013-06-17 2013-09-04 慈溪市凯宏密封设备厂 全自动缠绕机
CN103277512B (zh) * 2013-06-17 2015-08-19 慈溪市凯宏密封设备厂 全自动缠绕机
IT201900009162A1 (it) * 2019-06-17 2020-12-17 Engraving Solutions S R L Metodo e macchina per produrre rotoli di materiale nastriforme avvolto su anime tubolari e relativo prodotto ottenuto
WO2020254261A1 (fr) * 2019-06-17 2020-12-24 Engraving Solutions S.R.L. Procédé et machine de production de rouleaux de matériau en bande enroulés autour de noyaux tubulaires

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