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WO2007128094A1 - Adaptateurs de noyau jetables/recyclables - Google Patents

Adaptateurs de noyau jetables/recyclables Download PDF

Info

Publication number
WO2007128094A1
WO2007128094A1 PCT/CA2006/000726 CA2006000726W WO2007128094A1 WO 2007128094 A1 WO2007128094 A1 WO 2007128094A1 CA 2006000726 W CA2006000726 W CA 2006000726W WO 2007128094 A1 WO2007128094 A1 WO 2007128094A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
adapter
sleeve
studs
stud
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.)
Ceased
Application number
PCT/CA2006/000726
Other languages
English (en)
Inventor
Douglas Henry Offerhaus
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.)
Catalyst Paper Corp
Original Assignee
Catalyst Paper 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 Catalyst Paper Corp filed Critical Catalyst Paper Corp
Priority to EP06721883A priority Critical patent/EP2019805B1/fr
Priority to BRPI0621443-6A priority patent/BRPI0621443A2/pt
Priority to AT06721883T priority patent/ATE535481T1/de
Priority to PCT/CA2006/000726 priority patent/WO2007128094A1/fr
Priority to JP2009504534A priority patent/JP2009533296A/ja
Publication of WO2007128094A1 publication Critical patent/WO2007128094A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/185—End caps, plugs or adapters

Definitions

  • This invention provides both disposable and reusable core adapters, either of which facilitate mounting a roll wound on a larger inside diameter core in a reel stand having core chucks designed for use with a roll wound on a core having a smaller inside diameter.
  • a paper roll wound on a nominal 6-inch (15.24 cm) inside diameter core can be mounted in a reel stand having core chucks designed for use with a paper roll wound on a nominal 3 -inch (7.62 cm) diameter core.
  • Web material such as paper, fabric, plastic film, metal foil, etc.
  • paper rolls such as newsprint or soft nip calendered rolls, are produced by winding a paper web onto a fiber core.
  • Newsprint roll core diameters can vary, but two are prevalent, namely (nominal) 3-inch and (nominal) 6-inch inside diameter cores.
  • Press room reel stands are equipped with core chucks sized to fit either 3 -inch or 6-inch diameter cores, but not always both. Consequently, paper mills commonly supply newsprint wound on cores sized to fit each customer's unique combination of reel stands.
  • Management of paper mill roll inventories is also complex. For example, a paper mill may need to delay production, until receipt of an appropriate combination of customer orders for rolls wound on 3 -inch and 6-inch cores, to match the width of the paper machine winder for efficient production of the ordered rolls. This is because most winders cannot simultaneously wind sets of rolls on different diameter cores.
  • Prior art 6-to-3 inch core adapters have been used in an attempt to circumvent the foregoing problems. If such adapters are fitted into each of the opposed ends of a 6-inch diameter core, a paper roll wound on that core can be mounted on a reel stand equipped only with 3-inch core chucks. This allows a paper mill to efficiently wind all rolls onto 6-inch diameter cores— customers having reel stands equipped only with 3 -inch core chucks can use such adapters to mount the rolls on those reel stands. This significantly improves press room efficiency—any warehoused roll of paper can be mounted on any reel stand at any time. Moreover, larger diameter cores are preferable because they are stiffer and less susceptible to vibration as the roll unwinds, which allows higher sustained operating speeds and improved runnability in the press room.
  • a typical prior art adapter is formed as a cylindrical steel sleeve, with an inside diameter suitable for engaging 3-inch core chucks.
  • a plurality of ribs extend radially from the sleeve. The ribs are sized to tightly engage the inside diameter of a 6-inch diameter paper roll core, when the adapter's ribbed end is driven into the core.
  • Such adapters usually have a protruding end flange which extends parallel to the side of the paper roll when the adapter is driven into the core.
  • the flange necessitates reduction of the roll's width, which is undesirable because reduced-width rolls do not fully utilize the reel stand's width capacity.
  • the protruding flange also precludes safe stacking, on end, of rolls in which such adapters have been installed.
  • Such prior art adapters are also heavy, unwieldily, and may not effec- tively engage the core chuck's fingers, potentially allowing the roll to slip on the reel stand. Furthermore, installation of such prior art core adapters in a typical press room can be laborious and time consuming. [0006] This invention addresses the shortcomings of such prior art adapters.
  • Figure 1 is a partially sectioned isometric view of a disposable core adapter in accordance with the invention, showing the adapter's studs retracted.
  • Figure 2 shows the Figure 1 disposable adapter with its studs extended.
  • Figure 3 is a partially sectioned isometric view of a reusable core adapter in accordance with the invention, showing the adapter's studs retracted.
  • Figure 4 shows the Figure 3 reusable adapter with its studs extended.
  • Figure 5 A is an outside end elevation view of the Figure 3 and 4 reusable adapter, showing one row of studs in the extended position.
  • Figure 5B is a section view taken with respect to line 5B— 5B shown in Figure 5 A.
  • Figure 6 is a partially sectioned isometric view of a tool for inserting either the disposable core adapter or the reusable core adapter into a roll core.
  • Figure 7 is a partially sectioned isometric view of a tool for removing the reusable core adapter from a roll core.
  • Figure 8 is an inward end elevation view, on an enlarged scale, of either one of the tools depicted in Figures 6 or 7, with the end cap removed and the locking pins retracted.
  • Figure 9 is an inward end elevation view, on an enlarged scale, of either one of the tools depicted in Figures 6 or 7, with the end cap removed and the locking pins extended.
  • Figure 10 is an inward end elevation view of the drive flange portion of the Figure 6 tool.
  • Figure 11 is an inward end elevation view of the drive flange portion of the Figure 7 tool.
  • Figure 12A is a schematic, partially sectioned, side elevation assembly view of the Figure 6 adapter insertion tool engaging one end of a paper roll after insertion of a disposable core adapter into the roll's core, showing the insertion tool positioned to commence driving the disposable adapter's studs into the core.
  • Figure 12B depicts the Figure 12A apparatus after actuation of the adapter insertion tool to drive the disposable adapter's studs into the core.
  • Figure 13 is a partially sectioned isometric view of the Figure 6 adapter insertion tool engaging one end of a paper roll after insertion of a reusable core adapter into the roll's core and after actuation of the insertion tool to commence driving the reusable adapter's studs into the core.
  • Figure 14 is a partially sectioned isometric view of the Figure 7 reusable adapter removal tool engaging one end of a paper roll core containing a previously inserted reusable core adapter, after actuation of the removal tool to commence withdrawal of the reusable adapter's studs from the core.
  • Figure 15A is a schematic, partially sectioned, side eleva- tion assembly view of the apparatus depicted in Figure 13.
  • Figure 15B is a schematic, partially sectioned, side elevation assembly view of the apparatus depicted in Figure 14.
  • FIGS 1 and 2 depict a disposable core adapter 10 formed as a flangeless, ribless hollow cylindrical sleeve 12.
  • Adapter 10 can be made from the same inexpensive fiber material used to make conventional paper roll cores, or made from other suitable material such as particle board, recycled plastic, rubber, etc.
  • Such disposable adapters 10 are suitable for use in paper mills, where they can be quickly and economically installed to suit customer core size requirements, before the paper rolls are shipped to the customer.
  • Such disposable adapters 10 are also suitable for use in a press room.
  • a plurality of (e.g. thirty) steel studs 14 are friction-fit embedded in apertures 13 formed radially in sleeve 12.
  • Each stud 14 has a circular cross-section, a tapered (e.g. conical) spiked tip 16, and a rounded bottom 18. Tips 16 are initially recessed beneath sleeve 12 's outer cylindrical surface so that bottoms 18 project into sleeve 12' s hollow core, as shown in Figure 1.
  • each stud 14 has an overall length of about 1.77 inches (about 4.5 cm) and an external diameter of about .312 inches (about .794 cm).
  • Each stud 14's conical tip is about .3 inches (about .762 cm) long.
  • Studs 14 are arranged in a plurality of (e.g. six) parallel rows spaced evenly and circumferentially around sleeve 12.
  • each stud is coplanar with one stud in each one of the other rows.
  • a plurality of (e.g. five) studs are provided in each row, spaced evenly along the row.
  • Each stud's longitudinal axis extends substan- tially perpendicular to sleeve 12' s longitudinal axis 20.
  • the outermost studs in each row are set back a suitable distance (e.g. about 1-inch or 2.54 cm) from sleeve 12' s ends 22, 24 to prevent distortion of the roll's core during use of adapter 10 as explained below.
  • Disposable adapter sleeve 12' s outside diameter 28 ( Figure 1) is sized for light friction- fit insertion into a standard 6-inch inside diameter paper roll core.
  • Sleeve 12 's inside diameter 30 ( Figure 2) is sized to the same tolerances as a standard 3-inch inside diameter paper roll core.
  • Diameters 28, 30 define notional cylinders which are coaxial about axis 20.
  • Disposable adapter 10 can have any reasonable length "L D " ( Figure 1— e.g. about 5 inches, or 12.7 cm) to accommodate different core chuck designs.
  • Figures 3, 4, 5 A and 5B depict a reusable core adapter 110 formed as a flangeless, ribless hollow cylindrical sleeve 112 from a resilient material such as DelrinTM synthetic resinous plastic, available from E. I. du Pont De Nemours and Company, Wilmington, DE. Such reusable adapters are suitable for use in press rooms, where they can be efficiently and economically reused as explained below.
  • a plurality of (e.g. thirty) steel studs 114 are friction-fit embedded in apertures 113 ( Figures 3, 4, 5 A and 5B) formed radially in sleeve 112. Each stud 114 has a circular cross-section, a tapered (e.g.
  • each stud 114 has an overall length of about 1.77 inches (about 4.5 cm) and an external diameter of about .312 inches (about .794 cm). Each stud 114's conical tip is about .3 inches (about .762 cm) long.
  • Groove 115 is about .4 inches (about 1.016 cm) long and about .188 inches (about .478 cm) in diameter.
  • Studs 114 are arranged in a plurality of (e.g. six) parallel rows spaced evenly and circumferentially around sleeve 112. Within each row, each stud is coplanar with one stud in each one of the other rows. A plurality of (e.g. five) studs are provided in each row, spaced evenly along the row. Each stud's longitudinal axis extends substantially perpendicular to sleeve 112's longitudinal axis 120. The outermost studs in each row are set back a suitable distance (e.g.
  • Outward end 122 is clearly labelled "OUTSIDE,” as indicated at 121 , during manufacture of adapter 110, for example by engraving the label wording into end 122. Such labelling facilitates correct mounting of adapter 110 on core adapter insertion tool 140 as explained below.
  • Pry bar slots 123 are optionally formed in outward end 122 to facilitate removal of adapter 110 from reusable core adapter removal tool 240 (described below), if adapter 110 becomes jammed on tool 240.
  • a longitudinal, rectangular cross-sectioned aperture 126 is formed through sleeve 112 adjacent each row of studs 114, substantially parallel to axis 120 and intersecting the apertures 113 in which each stud in the row is embedded.
  • each aperture 126 is offset by a displacement "O" relative to a notional plane containing the longitudinal axes of each stud in the row of studs adjacent that aperture; and the aperture's two side walls are substantially parallel to that plane.
  • Each aperture 126 is located so that, when studs 114 are extended from sleeve 12 as shown in Figures 4 and 5B, aperture 126 partially intersects the circumferential groove 115 of each stud in the row.
  • Reusable adapter sleeve 112's outside diameter 128 ( Figures 5A and 5B) is sized for light friction-fit, non-adhesive insertion into a standard 6-inch inside diameter paper roll core.
  • Reusable adapter sleeve 112's inside diameter 130 is sized to the same tolerances as a standard 3-inch inside diameter paper roll core.
  • Reusable adapter 110 can have any reasonable length (e.g. about 5 inches) to accommodate different core chuck designs.
  • disposable adapter 10 has no longitudinal apertures extending between and through sleeve 12's outward and inward ends 22, 24 and between outside and inside diameters 22, 30. That is, disposable adapter 10 has no apertures correspond- ing to reusable adapter 110's apertures 126. Disposable adapter 10's studs 14 have no central circumferential groove corresponding to grooves 115 of reusable adapter 110's studs 114. Persons skilled in the art will understand that studs 114 can, if desired, be used in disposable adapter 10 although grooves 115 serve no purpose if studs 114 are used in disposable adapter 10.
  • Figure 6 depicts a tool 140 for inserting either one of disposable core adapter 10 or reusable core adapter 110 into a paper roll core (not shown in Figure 6).
  • “inward” means toward the right, as viewed in Figure 6; and “outward” means toward the left, as viewed in Figure 6.
  • Tool 140 has a longitudinally apertured, externally threaded rod 142 which extends through central apertures in each of DelrinTM spacer plate 144 and stop flange 146 (spacer plate 144 is optional). The inward end of rod 142 is threaded into the outward end of adapter mounting mandrel 148 and welded or otherwise fastened to stop flange 146.
  • lock arm shaft 150 is rotatably mounted in and extends through rod 142's central longitudinal aperture. Lock arm shaft 150 projects from the inward end of rod 142 and extends through mandrel 148. As best seen in Figures 8 and 9, the inward end of lock arm shaft 150 is fixed to locking pin arm 152 which extends within chamber 154 machined in the inward end of mandrel 148.
  • Locking pins 156, 158 are pivotally attached, by pivot pins 157, to opposed ends of locking pin arm 152 and extend, respectively, into apertures 160, 162 machined in the inward end of mandrel 148. Apertures 160, 162 intersect chamber 154. Lock arm shaft 150 is selectably rotated as explained below to move locking pin arm 152 into the position shown in Figure 8 in which locking pins 156, 158 are retracted within mandrel 148; or, to move arm 152 into the position shown in Figure 9 in which locking pins 156, 158 project from mandrel 148. Locking pins 156, 158 have wide, flat outward faces with radiused edges.
  • Mandrel 148 is sized so that its longitudinal displacement between the inward face of stop flange 146 and the outward edges of locking pins 156, 158 is slightly greater than the length "L D " ( Figure 1) of disposable adapter 10 and slightly greater than the length "L R " ( Figure 4) of reusable adapter 110. O-rings surround shaft 150 at spaced intervals, to provide friction- fit engagement between rod 142 and shaft 150 and resist loosening of shaft 150 when tool 140 is operated as explained below. [0038] End cap 164 ( Figure 6) is fastened to mandrel 148 by machine screws (not shown) which threadably engage apertures 166 ( Figures 8 and 9) in mandrel 148.
  • a plurality of circumferentially spaced, longitudinally extending channels 168 are machined in mandrel 148.
  • One channel 168 is provided for each row of studs 14, 114 in adapters 10, 110 respectively.
  • Each channel 168 has an inverted-T cross-sectional shape, as seen in Figures 8 and 9.
  • Optional weight- reduction channels 170 ( Figure 6) can be machined in mandrel 148.
  • End cap 164 is made sufficiently thick (e.g. about 0.5 inches, or about 1.27 cm) to be capable of securely retaining locking pins 156, 158 when one of adapters 10 or 110 is driven into a paper roll core as explained below.
  • the outward end of rod 142 extends through a central key way aperture 171 (Figure 10) in drive flange 172 and is threaded into drive nut 174.
  • Keeper plate 176 is diametrically split into two halves which are fitted over drive nut 174's capture flange 178 and fastened to drive flange 172 by machine screws 180 which threadably engage apertures 179 ( Figure 10) in drive flange 172.
  • a plurality of circumferentially spaced slots 181 are machined in drive flange 172.
  • One slot 181 is provided for each row of studs 114 provided in sleeve 112.
  • Each slot 181 has a rectangular cross-sectional shape, aligned with a corresponding one of channels 168.
  • the circle (not shown) used to locate channels 168 machined in mandrel 148 is the same as the circle (not shown) used to machine slots 181 in drive flange 172.
  • the cir- cumferential displacement around the circle of channels 168 machined in mandrel 148 is the same as the circumferential displacement around the circle of slots 181 machined in drive flange 172.
  • Key 182 extends into drive flange 172's key way aperture 183 and into external key way 184 machined in rod 142, maintaining alignment of drive flange 172 relative to stop flange 146 when drive nut 174 is rotated or counter- rotated as explained below.
  • the squared outward end 186 of lock arm shaft 150 projects outwardly through rod 142's outward end.
  • a wedge-tipped bar 194 having an inverted-T cross-sectional shape matching that of channels 168 and slots 181 is provided for each one of slots 181 (and thus for each row of studs 14 or 114 provided in sleeves 12 or 112 respectively).
  • the wedge face on each bar 194 has a smooth surface finish to reduce friction and is machined to gradually merge into the bar's narrow top face, opposite the bar's wider bottom face.
  • the wedge face on each bar 194 is heat treated to increase surface hardness for wear resistance, while preserving ductility of the remainder of each bar 194 to inhibit breakage.
  • the inward end of each bar 194 is preferably rounded to prevent the bar from digging into the non-apertured portion of adapter 10 or 110 during installation.
  • each bar 194 is fastened into one of drive flange 172's slots 181 by machine screws (not shown) which threadably engage apertures 193 ( Figure 10), care being taken to align bars 194 substantially perpendicular to the inward face of drive flange 172, with each bar's sloped wedge surface facing radially toward the outer circumferential rim of drive flange 172 and the bar's wider bottom face facing radially away from the outer circumferential rim of drive flange 172.
  • the inward (i.e. wedge-tipped) ends of each bar 194 extend through a corresponding one of rectangular apertures 196 machined in stop flange 146.
  • the circle (not shown) used to locate apertures 196 is the same as the circle (not shown) used to locate channels 168 machined in mandrel 148.
  • the circumferential displacement around the circle of apertures 196 is the same as the circumferential displacement around the circle of channels 168 machined in mandrel 148. Consequently, any one of apertures 196 is coaxially alignable with any one of channels 168.
  • circumferentially spaced set screws 198 are threadably mounted in and extend through apertures machined in stop flange 146.
  • Optional weight-reduction apertures 200 can be machined in stop flange 146.
  • Optional spacer plate 144 assists in guiding bars 194 through apertures 196 when drive nut 174 is rotated or counter- rotated as explained below. Spacer plate 144 also serves as a cushioned depth stop for drive flange 172.
  • Figure 7 depicts a tool 240 for removing from a paper roll core (not shown in Figure 7) a reusable core adapter 110 previously inserted into the core by tool 140.
  • Tools 140, 240 are structurally similar. Components which are common to tools 140, 240 bear the same reference numerals in Figures 6 and 7 and need not be described further.
  • inward means toward the right, as viewed in Figure 7; and "outward” means toward the left, as viewed in Figure 7.
  • Keeper plate 276 is diametrically split into two halves which are fitted over drive nut 174's capture flange 178 and fastened to drive flange 272 by machine screws 280 which threadably engage apertures 279 (Figure 11) in drive flange 272.
  • a plurality of circumferentially spaced slots 281 are machined in drive flange 272.
  • One slot 281 is provided for each row of studs 114 provided in sleeve 112.
  • Each slot 281 has a rectangular cross-sectional shape.
  • the circle (not shown) used to locate slots 281 machined in drive flange 172 is the same as the circle (not shown) used to locate apertures 126 formed in adapter 110.
  • a wedge-tipped bar 294 having a rectangular cross-sectional shape matching that of apertures 126 and slots 281 is provided for each one of slots 181 (and thus for each for each row of studs 114 provided in sleeve 112).
  • the wedge tip on each bar 294 has a smooth surface finish to reduce friction and is machined to gradually merge into one of the bar's flat sides.
  • the wedge tip on each bar 294 is heat treated to increase surface hardness for wear resistance, while preserving ductility of the remainder of each bar 294 to inhibit breakage.
  • the inward end of each bar 294 is preferably rounded to prevent the bar from digging into the non-apertured portion of adapter 110 during installation.
  • each bar 294 is fastened into one of drive flange 272' s slots 281 by one of machine screws 295 which threadably engage apertures 293 ( Figure 11), care being taken to align bars 294 substantially perpendicular to the inward face of drive flange 272, with each bar's sloped wedge surface facing radially away from the outer circumferential rim of drive flange 272.
  • the inward (i.e. wedge-tipped) ends of each bar 294 extend through a correspond- ing one of rectangular apertures 296 machined in stop flange 146.
  • the circle (not shown) used to locate apertures 296 is the same as the circle (not shown) used to locate sleeve 112's apertures 126.
  • a disposable core adapter 10 (with studs 14 retracted as shown in Figure 1) is slidably fitted over tool 140's mandrel 148 by aligning the bottom ends 18 in each row of studs 14 within a corresponding one of channels 168 to position either one of adapter lO's ends 22 or 24 flush against the inward face of stop flange 146.
  • a wrench is then used to rotate lock arm shaft 150's squared outward end 186 clockwise (as viewed from the left side of Figure 6).
  • lock arm shaft 150 rotates locking pin arm 152 counter-clockwise (as viewed in Figures 8 and 9), moving locking pin arm 152 and locking pins 156, 158 into the position shown in Figure 9 in which locking pins 156, 158 project from mandrel 148, thereby snugly capturing disposable adapter 10 between stop flange 146 and locking pins 156, 158.
  • the radiused edges of locking pins 156, 158 cam movement of the locking pins over adapter lO's inward end 24, reducing potential jamming of the locking pins against the adapter.
  • the locking pins' wide, flat outward faces bear securely against the adapter's inward end without indenting that end when the adapter is driven into a paper roll core as explained below.
  • the inward end of core adapter insertion tool 140 i.e. the end on which disposable core adapter 10 is captively mounted as aforesaid
  • the inward end of core adapter insertion tool 140 is then inserted into one end of 6-inch paper roll core 310, until the inward face of stop flange 146 cir- cumferentially surrounding adapter 10 is flush against the outward end of paper roll 312.
  • This action forces the pointed tips of set screws 198 into core 310, preventing rotation of tool 140 and adapter 10 relative to core 310.
  • Locking pins 156, 158 brace adapter lO's inward end, limiting the depth to which adapter 10 can be axially inserted into core 310— if adapter 10 's outward end is inserted beyond the outward end of core 310 it could be difficult to remove adapter 10 from core 310.
  • One end of a deep socket 104 is then fitted over drive nut 174.
  • the socket's opposite end is coupled to a torque multiplier (not shown).
  • the torque multiplier is actuated to rotate drive nut 174 so as to threadably advance drive nut 174 along rod 142 toward the rod's inward end (i.e. toward the right, as viewed in Figures 12A and 12B).
  • drive nut 174' s capture flange 178 is enclosed between drive flange 172 and keeper plate 176, such advancement of drive nut 174 advances drive flange 172 and keeper plate 176 along rod 142, toward the rod's inward end. More particularly, such advancement of drive nut 174 drives each one of bars 194 through a corresponding one of stop flange 146's apertures 196 and into a corresponding one of channels 168.
  • the aforementioned engagement of key 182 within drive flange 172's key way 183 and within rod 142's key way 184 maintains alignment of drive flange 172 relative to stop flange 146 as bars 194 are driven into apertures 142.
  • each row is thus successively driven into core 310, from the retracted position shown in Figures 1 and 12A into the extended position shown in Figures 2 and 12B.
  • the studs' penetration depth into core 310 is determined by the width of bar 194, thus avoid- ing over-penetration of the studs which could distort the outer surface of core 310.
  • each stud is coplanar with one stud in each one of the other rows. Accordingly, simultaneous driving of bars 194 into channels 168 successively drives each group of coplanar studs simultaneously into core 310, thereby maintaining concentric alignment of adapter 10 within core 310 to prevent off-axis rotation of core 310 during high speed unwinding of material from core 310.
  • each bar 194 Longitudinal and transverse deflection of each bar 194 relative to its corresponding channel 168 is prevented since the wide base of each bar 194 is restrained within the wide, lower portion of the corresponding inverted-T cross-sectionally shaped channel 168.
  • the torque multiplier is adjusted to reverse its drive direction, then actuated to rotate drive nut 174 so as to threadably retract drive nut 174 along rod 142 toward the rod's outward end, thereby retracting bars 194 along channels 168 until the bars' wedge tips clear adapter 10's outward face 22.
  • a wrench is then used to rotate lock arm shaft 150's squared outward end 186 counter-clockwise (as viewed from the left side of Figure 6).
  • Such rotation of lock arm shaft 150 rotates locking pin arm 152 clockwise (as viewed in Figures 8 and 9), moving locking pin arm 152 and locking pins 156, 158 into the position shown in Figure 8 in which locking pins 56, 58 are retracted within mandrel 148.
  • Core adapter insertion tool 140 is then withdrawn from core 310, leaving disposable adapter 10 within core 310.
  • Another disposable adapter 10 is then fitted onto tool 140 and inserted into the opposite end of core 310. That adapter's studs are then driven into core 310 as described above.
  • studs 14 When driven into core 310 as aforesaid, studs 14 robustly couple adapter 10 to core 310, so as to withstand core chuck axial thrust loads and resist acceleration and deceleration torques applied to a paper roll (not shown) wound on core 310 during typical operation of a press room reel stand.
  • the reel stand's core chucks (not shown— there are many different core chuck configurations) engage core 310, the core chuck's body butts against the underside of some or all rows of studs 14, preventing retraction of studs 14 from core 310 during unwinding of the roll.
  • a reusable core adapter 110 (with studs 114 retracted as shown in Figure 3) is slidably fitted over tool 140's mandrel 148 by aligning the bottom ends 118 in each row of studs 114 within a corresponding one of channels 168 to position adapter 110's outward end 122 (i.e. the end bearing "OUTSIDE" label 121) flush against the inward face of stop flange 146.
  • a wrench is then used to rotate lock arm shaft 150's squared outward end 186 clockwise (as viewed from the left side of Figure 6).
  • lock arm shaft 150 rotates locking pin arm 152 counter-clockwise (as viewed in Figures 8 and 9), moving locking pin arm 152 and locking pins 156, 158 into the position shown in Figure 9 in which locking pins 156, 158 project from mandrel 148, thereby snugly capturing reusable adapter 110 between stop flange 146 and locking pins 156, 158.
  • the radiused edges of locking pins 156, 158 cam movement of the locking pins over adapter 110's inward end 124, reducing potential jamming of the locking pins against the adapter.
  • the locking pins' wide, flat outward faces bear securely against the adapter's inward end without indenting that end when the adapter is driven into a paper roll core as explained below.
  • the inward end of core adapter insertion tool 140 i.e. the end on which reusable core adapter 110 is captively mounted as aforesaid
  • the inward end of core adapter insertion tool 140 is then inserted into one end of 6-inch paper roll core 310, until the inward face of stop flange 146 cir- cumferentially surrounding adapter 110 is flush against the outward end of paper roll 312.
  • This action forces the pointed tips of set screws 198 into core 310, preventing rotation of tool 140 and adapter 110 relative to core 310.
  • Locking pins 156, 158 brace adapter 110's inward end, limiting the depth to which adapter 110 can be axially inserted into core 310— if adapter 110's outward end is inserted beyond the outward end of core 310 it could be difficult to remove adapter 110 from core 310.
  • One end of a deep socket 104 is then fitted over drive nut 174.
  • the socket's opposite end is coupled to a torque multiplier (not shown).
  • the torque multiplier is actuated to rotate drive nut 174 so as to threadably advance drive nut 174 along rod 142 toward the rod's inward end (i.e. toward the right, as viewed in Figures 13 and 15A).
  • drive nut 174's capture flange 178 is enclosed between drive flange 172 and keeper plate 176, such advancement of drive nut 174 advances drive flange 172 and keeper plate 176 along rod 142, toward the rod's inward end. More particularly, such advancement of drive nut 174 drives each one of bars 194 through a corresponding one of stop flange 146's apertures 196 and into a corresponding one of channels 168.
  • the aforementioned engagement of key 182 within drive flange 172's key way 183 and within rod 142's key way 184 maintains alignment of drive flange 172 relative to stop flange 146 as bars 194 are driven into apertures 142.
  • the studs 114 in each row are thus successively driven into core 310, from the retracted position shown in Figure 3 into the extended position shown in Figure 4.
  • the central stud i.e. the third stud from the left
  • the fourth stud from the left has initially penetrated core 310
  • the inward end of the wedge tip of bar 194 has just reached the inwardmost stud to commence driving that stud into core 310.
  • the studs' penetration depth into core 310 is determined by the width of bar 194, thus avoiding over-penetration of the studs which could distort the outer surface of core 310.
  • each stud is coplanar with one stud in each one of the other rows. Accordingly, simultaneous driving of bars 194 into chan- nels 168 successively drives each group of coplanar studs simultaneously into core 310, thereby maintaining concentric alignment of adapter 110 within core 310 to prevent off-axis rotation of core 310 during high speed unwinding of roll 312 from core 310.
  • each bar 194 Longitudinal and transverse deflection of each bar 194 relative to its corresponding channel 168 is prevented since the wide base of each bar 194 is re- strained within the wide, lower portion of the corresponding inverted-T cross-sectionally shaped channel 168.
  • lock arm shaft 150 rotates locking pin arm 152 clockwise (as viewed in Figures 8 and 9), moving locking pin arm 152 and locking pins 156, 158 into the position shown in Figure 8 in which locking pins 56, 58 are retracted within mandrel 148.
  • Core adapter insertion tool 140 is then withdrawn from core 310, leaving reusable adapter 110 within core 310.
  • Another reusable adapter 110 is then fitted onto tool 140 and inserted into the opposite end of core 310. That adapter's studs are then driven into the core 310 as described above.
  • studs 114 When driven into core 310 as aforesaid, studs 114 robustly couple adapter 110 to core 310, so as to withstand core chuck axial thrust loads and resist acceleration and deceleration torques applied to paper roll 312 during typical operation of a press room reel stand.
  • the reel stand's core chucks (not shown— there are many different core chuck configurations) engage core 310, the core chuck's body butts against the underside of some or all rows of studs 114, preventing retraction of studs 114 from core 310 during unwinding of roll 312.
  • reusable adapter 110's sleeve 112 is flangeless, no protrusions remain after adapter 110 is installed in core 310, so the width of paper roll 312 is unaffected by adapter 110. Paper rolls in which reusable adapters 110 have been installed can also be safely stacked on end.
  • Core adapter insertion tool 140 facilitates fast, efficient installation of reusable core adapters 110. Tool 140's simultaneous, symmetric radial engagement of studs 114 ensures concentric installation of each adapter 110 within core 310. Moreover, as explained below, adapter 110 is quickly and easily removed from the spent core after paper roll 312 is unwound.
  • Reusable adapter 110 is removed from the spent core (or from a non-spent core, should such removal be necessary) with the aid of reusable core adapter removal tool 240, as shown in Figures 7, 14 and 15B.
  • a wrench is used to rotate lock arm shaft 150's squared outward end 186 counter-clockwise (as viewed from the left side of Figures 14 and 15B).
  • Such rotation of lock arm shaft 150 rotates locking pin arm 152 clockwise (as viewed in Figures 8 and 9), moving locking pin arm 152 and locking pins 156, 158 into the position shown in Figure 8 in which locking pins 56, 58 are retracted within mandrel 148.
  • Mandrel 148 is then slidably advanced into the adapter's sleeve 112 until the inward face of stop flange 146 is flush against the adapter's outward end 122 (i.e. the end bearing "OUTSIDE" label 121), care being taken to align each one of stop flange 146's apertures 296 over a corresponding one of adapter 110's apertures 126.
  • the wrench is then used to rotate lock arm shaft 150's squared outward end 186 clockwise, moving locking pin arm 152 and locking pins 156, 158 into the position shown in Figure 9 in which locking pins 156, 158 project from mandrel 148, thereby snugly capturing adapter 110 between stop flange 146 and locking pins 156, 158.
  • This action forces the pointed tips of set screws 198 into core 310, preventing rotation of tool 240 and adapter 110 relative to core 310.
  • the radiused edges of locking pins 156, 158 cam movement of the locking pins over adapter 110's inward end 124, reducing potential jamming of the locking pins against the adapter.
  • the locking pins' wide, flat outward faces bear securely against the adapter's inward end, without indenting that end when the adapter is removed from core 310 as explained below.
  • One end of a deep socket 104 is then fitted over drive nut 174.
  • the socket's opposite end is coupled to an torque multiplier (not shown).
  • the torque multiplier is actuated to rotate drive nut 174 so as to threadably advance drive nut 174 along rod 142 toward the rod's inward end (i.e. toward the right, as viewed in Figures 14 and 15B).
  • drive nut 174's capture flange 178 is enclosed between drive flange 272 and keeper plate 276, such advancement of drive nut 174 advances drive flange 272 and keeper plate 276 along rod 142, toward the rod's inward end. More particularly, such advancement of drive nut 174 drives each one of bars 294 through a corresponding one of stop flange 146's apertures 296 and into a corresponding one of adapter 110's apertures 126.
  • the aforementioned engagement of key 182 within drive flange 272's keyway 283 ( Figure 11) and within rod 142's key way 184 maintains alignment of drive flange 272 relative to stop flange 146 as bars 294 are driven into apertures 126.
  • FIGs 4, 5 A and 5B illustrate the extended position of studs 114 after insertion of adapter 110 into core 310 as explained above.
  • each aperture 126 is located so that, when a corresponding row of studs 114 is extended from sleeve 112, the aperture 126 partially intersects the circumferential groove 115 of each stud in the row, without intersecting the bodies of any of the studs in the row.
  • the wedge-tipped inward end of a bar 294 reaches the groove 115 of the outwardmost one of studs 114 within one of apertures 126, the wedge tip slides easily over the groove's lower annular rim 117.
  • studs 114 are driven from the extended position shown in Figure 4 into the retracted position shown in Figure 3). This is shown in Figures 14 and 15B: the two outwardmost studs have been fully retracted from core 310 and the central stud has been partially retracted from core 310. [0059] After all of adapter 110's studs 114 have been retracted from core 310 the torque multiplier is adjusted to reverse its drive direction, then actuated to rotate drive nut 174 so as to threadably retract drive nut 174 along rod 142 toward the rod's outward end, thereby retracting bars 294 from apertures 126 until the bars' wedge tips clear adapter 110's outward face 122.
  • adapter 10 be as inexpensive as possible.
  • the components in disposable adapter 10 can be less durable than the components in resusable adapter 110 to reduce costs, without compromising the ability to robustly couple adapter 10 to a roll core.
  • the stud penetration depth of either adapter 10 or 110 into a roll core may be about 0.300 inches (about 7.6 mm).
  • channels 168 and bars 194 may have mating cross-sectional shapes other than an inverted-T shape; retention of bars 194 within channels 168 can be achieved with any cross-sectional shape which is wider along a radially inward portion of each bar and channel and narrower along a radially outward portion of each bar and channel. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.

Landscapes

  • Winding Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Unwinding Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

La présente invention concerne un adaptateur de noyau (10) formé sous la forme d'une douille cylindrique creuse (12). Une pluralité d'ouvertures radiales (13) sont formées dans la douille. Chaque ouverture radiale est perpendiculaire à l'axe de la douille (20). Des plots (14) sont disposés dans chaque ouverture, initialement enfoncés sous la surface externe de la douille. Le diamètre externe de la douille (28) est calibré pour une insertion dans un noyau de 6 pouces de diamètre interne (310). Le diamètre interne de la douille (30) est de la même taille que le noyau de 3 pouces de diamètre interne. L'adaptateur est inséré dans un noyau de 6 pouces jusqu'à ce qu'il soit au niveau de l'extrémité du noyau. Les barres à extrémités en coin (194) sont dirigées sous chacune des rangées de plots longitudinalement alignées de l'adaptateur, contre le fond (18) de chaque plot, dirigeant de ce fait les plots en s'éloignant perpendiculairement par rapport à l'axe de la douille dans le noyau du cylindre.
PCT/CA2006/000726 2006-05-05 2006-05-05 Adaptateurs de noyau jetables/recyclables Ceased WO2007128094A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP06721883A EP2019805B1 (fr) 2006-05-05 2006-05-05 Adaptateur de noyau jetable
BRPI0621443-6A BRPI0621443A2 (pt) 2006-05-05 2006-05-05 adaptador de núcleo descartável, e, método para instalar um adaptador de núcleo descartável
AT06721883T ATE535481T1 (de) 2006-05-05 2006-05-05 Kernadapter für einmaligen gebrauch
PCT/CA2006/000726 WO2007128094A1 (fr) 2006-05-05 2006-05-05 Adaptateurs de noyau jetables/recyclables
JP2009504534A JP2009533296A (ja) 2006-05-05 2006-05-05 使い捨て／再使用可能なコアアダプタ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2006/000726 WO2007128094A1 (fr) 2006-05-05 2006-05-05 Adaptateurs de noyau jetables/recyclables

Publications (1)

Publication Number Publication Date
WO2007128094A1 true WO2007128094A1 (fr) 2007-11-15

Family

ID=38667356

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2006/000726 Ceased WO2007128094A1 (fr) 2006-05-05 2006-05-05 Adaptateurs de noyau jetables/recyclables

Country Status (5)

Country Link
EP (1) EP2019805B1 (fr)
JP (1) JP2009533296A (fr)
AT (1) ATE535481T1 (fr)
BR (1) BRPI0621443A2 (fr)
WO (1) WO2007128094A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020076293A1 (fr) * 2018-10-09 2020-04-16 Web Industries, Inc. Dispositif de retrait de capuchon d'extrémité

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616633A (en) * 1949-08-02 1952-11-04 Beaunit Mills Inc Spool holder
CA2121276A1 (fr) * 1993-04-20 1994-10-21 Lawrence E. Renck Tube support avec pieces d'embout interverrouillees permettant de reduire le diametre interieur du tube
CA2121277A1 (fr) * 1993-04-20 1994-10-21 Lawrence E. Renck Tube support pour enrouler le papier ou un autre materiau en feuilles, avec pieces d'embout interverrouillees
CA2299107A1 (fr) * 1999-02-23 2000-08-23 Daniel D. Kewin Tubes-supports pour rouleaux de papier ou autres materiaux en feuilles
WO2006034566A1 (fr) 2004-09-28 2006-04-06 Catalyst Paper Corporation Adaptateurs jetables/reutilisables pour mandrin

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE67796C (de) * M. KALB in Wildenau bei Schwarzenberg i. s Rollstange
JPH03249074A (ja) * 1990-12-27 1991-11-07 Ichikawa Tekkosho:Yugen カバーリング機用ボビンの製造方法
DE20316500U1 (de) * 2003-10-24 2004-03-04 Paul & Co. Gmbh & Co. Kg Papier- oder Papphülse mit Reduzierhülse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616633A (en) * 1949-08-02 1952-11-04 Beaunit Mills Inc Spool holder
CA2121276A1 (fr) * 1993-04-20 1994-10-21 Lawrence E. Renck Tube support avec pieces d'embout interverrouillees permettant de reduire le diametre interieur du tube
CA2121277A1 (fr) * 1993-04-20 1994-10-21 Lawrence E. Renck Tube support pour enrouler le papier ou un autre materiau en feuilles, avec pieces d'embout interverrouillees
CA2299107A1 (fr) * 1999-02-23 2000-08-23 Daniel D. Kewin Tubes-supports pour rouleaux de papier ou autres materiaux en feuilles
WO2006034566A1 (fr) 2004-09-28 2006-04-06 Catalyst Paper Corporation Adaptateurs jetables/reutilisables pour mandrin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020076293A1 (fr) * 2018-10-09 2020-04-16 Web Industries, Inc. Dispositif de retrait de capuchon d'extrémité

Also Published As

Publication number Publication date
EP2019805B1 (fr) 2011-11-30
EP2019805A4 (fr) 2009-11-25
BRPI0621443A2 (pt) 2011-12-13
ATE535481T1 (de) 2011-12-15
EP2019805A1 (fr) 2009-02-04
JP2009533296A (ja) 2009-09-17

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