EP0755893A2 - Verfahren und Vorrichtung zur Wiederverwertung von Wickelkernen - Google Patents

Verfahren und Vorrichtung zur Wiederverwertung von Wickelkernen Download PDF

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Publication number
EP0755893A2
EP0755893A2 EP96305538A EP96305538A EP0755893A2 EP 0755893 A2 EP0755893 A2 EP 0755893A2 EP 96305538 A EP96305538 A EP 96305538A EP 96305538 A EP96305538 A EP 96305538A EP 0755893 A2 EP0755893 A2 EP 0755893A2
Authority
EP
European Patent Office
Prior art keywords
core
web
cores
length
restoring
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.)
Granted
Application number
EP96305538A
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English (en)
French (fr)
Other versions
EP0755893B1 (de
EP0755893A3 (de
Inventor
Gregg M. Lynch
Stuart Ostroff
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.)
CSI Core Specialties Inc
Original Assignee
St Lawrence Manufacturing Canada Inc
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 St Lawrence Manufacturing Canada Inc filed Critical St Lawrence Manufacturing Canada Inc
Priority to EP01309940A priority Critical patent/EP1227054A1/de
Publication of EP0755893A2 publication Critical patent/EP0755893A2/de
Publication of EP0755893A3 publication Critical patent/EP0755893A3/de
Application granted granted Critical
Publication of EP0755893B1 publication Critical patent/EP0755893B1/de
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
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials

Definitions

  • This invention relates to a method and apparatus for restoring cores, and more particularly, cores utilized for accommodating a roll of paper.
  • Newsprint and other paper used for printing is generally shipped from the paper mill in large rolls. When the rolls are made up at the paper mill, they are wound on a tubular core. Typically the cores are made of liner board and are usually provided with metal caps of the type described in U. S. Patent 5,271,258, issued December 21, 1993 to Bernier et al.
  • the roll In the press room or other printing plant, the roll is mounted on an unwind apparatus with the core of the roll journaled on mandrels. Once the web of paper has been unwound from the core, the core is generally discarded or returned to a paper mill to be recycled as waste fiber. The core caps are first removed and restored for further use or sold for scrap.
  • the paper rolls are wound and unwound at high speeds and are, therefore, susceptible to misalignment while being wound, resulting in improper registry on the printing press, requiring constant alignment correction.
  • a slight inconsistency in the outer diameter of 0.25 inches will cause the paper web, when being wound, to move away from the end of the core that includes the portion with the larger diameter. It is important, therefore, that the outer diameter be constant and retain its circular cylindrical configuration.
  • the inner diameter must not vary so that the axis of rotation is at the true center of the core and thus the roll of paper. Any out-of-center rotation will cause similar winding and unwinding problems.
  • a method in accordance with the present invention comprises the steps of collecting used winding cores, passing each core through a station for trimming the ends of each core, passing each core through a coning station for centering the core in relation to its outer diameter, grinding the outer surface of each core to a constant diameter equivalent to an outer diameter standard less the thickness of a finishing web of fiber material, providing a finishing web of fiber material with a length corresponding to the length of the winding core being restored and having a width equal to the circumference of the core being restored, and wrapping the finishing web of paper about the core being restored.
  • the method includes the steps of recuperating used cores, selecting the winding cores by grade and length, passing each core through a core tip puller station for removing the steel tips from the ends of the cores, trimming the ends of the cores to remove crimping portions thereof, passing each core through a coning station for centering the cores in relation to their outer diameter, forming a female joint socket at one end thereof and a complementary male joint socket at the other end thereof, joining the cores end to end with adhesive to form an elongated multiple-length core master, grinding the outer surface of the core master to a constant diameter equivalent to a predetermined outer diameter standard less the thickness of a finishing web of paper, providing an elongated web of finishing material equivalent to the length of the multi-length core master, and wrapping the web about the core with adhesive so as to provide a constant outer diameter equivalent to the predetermined standard, and then cutting the multi-length core master to desired core lengths.
  • An apparatus in accordance with the present invention comprises a cutting table for trimming the ends of each winding core wherein saw means are provided for cutting off the ends of each core in order to remove any crimping marks, a coning station downstream of said cutting table wherein coning means are provided for centering the individual cores in relation to their outer diameters, grinding means for grinding the outer surface of the core to a predetermined constant diameter, and means for wrapping a finishing web of paper on the ground surface of the core, including a table for laying an elongated web of finishing paper having a length corresponding to the length of the core and a width corresponding to the circumference of the core, and means for wrapping the finishing web of paper on the core with adhesive.
  • An apparatus in accordance with a more specific embodiment of the present invention comprises a cutting table having a pair of spaced-apart cutting saws whereby the distance between the cutting saws can be adjusted to the equivalent of the length of the core being trimmed less the accumulated length of the portions of the ends to be trimmed, a coning station including a pair of spaced-apart heads each adapted to engage opposite ends of a trimmed core for the purpose of forming complementary female and male joints on the opposite ends of the core, means downstream of the coning station for joining the cores end to end to form a master core of a predetermined length representing multiple cores, a grinding station being arranged downstream thereof and including feeding means for feeding the so-formed master core by a rotating grinding wheel for grinding the core to a predetermined constant outer diameter, and the means for wrapping a finishing web of paper including a skiver for skiving the longitudinal edges of the web of finishing paper, means for applying glue to one surface of the web to be in contact with the core, the web wrapping station including a table, a web feeder for
  • an apparatus for wrapping a layer of material about a cylinder including an elongated frame, a material web feeding means at one end of the frame for feeding a predetermined length of web of material horizontally and longitudinally of the frame, the web having a width equal to the circumference of the cylinder, glue means for applying adhesive to the web, means for picking up and positioning a cylinder over the web of material on the elongated frame so that the axis of the cylinder is parallel to the longitudinal axis of the web of material, means for bringing the web of material and the cylinder into contact such that the adhesive will engage the surface of the cylinder, and means for rotating the cylinder so that the web of material is wrapped completely about the cylinder.
  • a winding core for transporting a web of paper in accordance with another aspect of the present invention comprises a circular cylindrical tube having ends and a predetermined circumference, the tube having a first spiral fiber board substrate and a web of fiber board material having a length equal to the length of the tube and a width corresponding to the circumference of the tube, the web of material having skived longitudinal edges, wherein the web of material is wrapped about the tube and forming a longitudinal seam made up of the longitudinal skived edges of the web that have been overlapped.
  • FIG. 1 there is shown a core preparation table 10 having an inlet table 22 on which previously used or discarded cores C can be stored after they have been sorted according to grade and length.
  • the winding core C which is normally made of a fiber board material, can come in different crush resistant categories, such as 400 lbs., 500 lbs., or 750 lbs. Eighty per cent of the winding cores are in a range of 55 inches, but this might vary. Most cores will have metal end caps at each end of the core C. Thus, a preselected batch of discarded used cores C are located on table 22 upstream of metal tip puller station 12.
  • a trimming station 14 Downstream of the metal tip puller station 12 is a trimming station 14 made up, in the present embodiment, of two identical but reversed saw tables for trimming the ends of the cores.
  • the next downstream station is a coning machine 16 best seen in Figs. 4 and 5.
  • the coning machine 16 serves to form a male joint on one end of the core C and a female socket at the other end.
  • Station 18 shown in Figs. 1 and 2, serves to press a series of cores C together to form a core master C M .
  • a core wrapping apparatus 100 is located downstream of the grinder 20.
  • the inlet table 22 is provided with a hydraulically operated gate member 24 associated with a slightly sloped table surface to allow cores C to advance one by one towards the metal tip puller station 12.
  • the metal tip puller station 12 includes track 28 and a carriage 30 which travels on the track 28.
  • Puller head 32 is located on one end of the frame, as shown in Fig. 3, and an identical puller head 34 is located on the carriage 30.
  • the carriage 30 will move towards the puller head 32 when a core is located on the frame 26 to engage the ends such that the puller heads will engage the metal tips, and the carriage 30 will retract to remove the metal tips from the core C.
  • the metal tips will be dumped from the respective puller heads 32 and 34 into a storage bin 23 for restoration of these metal tips.
  • the core C then advances through to station 14. As shown in Figs. 1 and 2, one end of the core will be cut by saw 38 as it comes off feed table 36.
  • the purpose of the saw 38 is to remove one end of the core which may have crimp marks, such as from the metal tips or caps.
  • the core then passes through the next saw 44 in station 14 to cut off the other end of the core in a like manner. These circular saws 38 and 44 are readily available.
  • the core is trimmed on both ends to be reduced to 48.5 inches from an original 55 inches.
  • the coning station 16 includes a frame 48 having a track 60.
  • a track 50 is mounted at one end of the frame 48 on platform 49.
  • a carriage 52 travels on the track 50, and the carriage 52 mounts a router 56.
  • Router 56 is the female router, and the carriage 52 moves towards one end of the core C which is held in a holder 58 near the end.
  • Holder 58 is provided with measuring devices for measuring the outer diameter of the core. These measuring devices can measure the outer diameter of the core 300 times a minute.
  • a female socket C V is formed by router 56 with reference to the outer diameter.
  • a router 68 is mounted on a subcarriage 66 mounted on a subtrack 64.
  • the subtrack 64 is mounted on the carriage 62 which in turn travels on the track 60 of the frame 48.
  • An outer diameter measuring device and holder 58 is mounted on the carriage 62.
  • the router 68 forms the male joint C S in reference to the outer diameter.
  • the core C is then delivered on table 69 and, in the present instance, is manually laid in the press station 18 in a V-shaped trough 72 on elongated frame 70.
  • a press head 74 travels on the track 76 towards the aligned cores C in the trough 72.
  • Adhesive is applied to the joints C V and C S of each core C.
  • Several cores C will be located end to end on the trough 72, and the press head 74 moves to press the core sections in order that the jointed ends C V and C S be coupled together to form a core master C M .
  • a core master C M will measure 180 inches and will be handled in the remainder of the core restoring apparatus as cylindrical core master C M .
  • the core master C M is passed through a grinder 20 which includes a grinding head frame 80.
  • Adjustable grinding wheels 86 and 88 are effective for grinding the surface of the core master C M .
  • the grinding machine 20 may be a Cincinnati grinding mill of the type known as Milacron (trademark) Twin Grip Centerless Grinder.
  • Each of the grinding wheels is mounted with anti-friction profile truing in order to precisely grind the outer surface of the core C M to a constant outer diameter.
  • the finished core should have an industry standard of 4.010 inches outer diameter, the grinding mill 20 will provide an outer diameter of 3.985 inches on the cores C M .
  • the core should reach an outer diameter of 4.010 inches.
  • the core C M is driven past the grinding wheels 86 and 88 by means of driven wheel assemblies 82 and 84, and the core C M is supported on idler wheel assembly 94.
  • Cores that are provided with metal end caps generally have an internal diameter of 3.072 inches. If, however, the core is not intended to be used with a metal end cap, the internal diameter is 3.000 inches.
  • the core wrapping assembly 100 includes a frame 102.
  • a web feeder and glue assembly 104 is provided at one end of the elongated frame 102.
  • a web assembly 103 as shown in Fig. 10, includes a roll of liner board web W being taken off by the feed assembly 104, and the web W passes through a skiver 114 which includes skiving wheels 116 shown in Figs. 10 and 11.
  • the skiver depending on the thickness of the web W, will remove from .020 and .010 off each edge W L and W R .
  • the skiving station is upstream from the feed and glue station 104.
  • the web W moves through the feed assembly 104 and through glue bath 118 and eventually over tension roller assembly 119, including a spring mounted lever, and through the pair of tension rollers 120.
  • Frame 102 is provided with a cutting assembly 108, as shown in Fig. 12, which includes a cutting knife 122 on a pivoting lever 126 which moves in association with anvil 124 in order to cut the web W the exact predetermined length.
  • the length of the web W is determined by the length of the core master C M .
  • the width of the web W is slightly greater, with the skived edges W L and W R , than the circumference of the core C M , to be wrapped, so that the skived edges W L and W R can overlap at least within the parameters of the skived portions.
  • the web support assembly 105 includes vacuum feed conveyor 106 having suction cups 130 mounted on a vacuum box 134 which in turn is mounted to a conveyor system which moves the vacuum box 134 with vacuum cups 130 along the longitudinal axis of the frame 102.
  • the vacuum cups 130 act on the web W to advance the web W to the full extent required to cover the length of the core master C M .
  • the knife assembly 108 is activated to cut the length of the web W.
  • the web W is supported on the frame by the elongated narrow platform 110, as shown in Fig. 13, and by the suction cups 130.
  • a core master C M ' in the magazine 112 is lifted by means of a core support assembly 142.
  • the core support assembly 142 includes a beam 144 which can travel laterally of the frame 102 as will be described later.
  • a pair of spindle assemblies 164 are mounted on the beam 144 for travel along the longitudinal axis thereof.
  • Each assembly 164 includes a sleeve 156 adapted to slide longitudinally on the beam 144, a bracket 158 extending downwardly, and the spindle housing 165 having a spindle head 166.
  • the head 166 is mounted for sliding movement on a sliding sub-housing 167 slidably mounted to the housing 165.
  • the head 166 is rotatable by means of a motor in the sub-housing 167.
  • the head 166 is frusto-conical, and the beveled portion is radially serrated.
  • the shafts 154 are driven by motor 170 through the intermediary of shafts 154.
  • the shafts 154 each have a gear 152 which engages rack 150 on the top of the frame 102.
  • motor 170 is effective to move the core support assembly 142 laterally on frame 102.
  • the pickup assembly 164 is adapted to pick up a core master C M from the magazine 112 and move it to a position above the lateral center of the web W.
  • web support assembly 105 may be raised, by means of hydraulic jacks 140 in increments corresponding to the different core diameters. Since the web W has been provided with an adhesive on the top surface thereof, the web W will come into contact with the surface of the core master C M . The close contact of the web to the surface of the core master is effected by means of a slicker assembly 174 which is actuated to raise the edge W R . The core master C M is rotated by the motor (in sub-housing 167) driving the spindle heads 166, and the web W will thus be wrapped about the core surface. A pair of idler rollers 172 is provided to ensure the close contact of the web being rolled to the surface of the core master C M . The skived edges of web W will overlap but will not form a seam of greater thickness than the thickness of the finished web of liner board.
  • the completed core masters C M are then removed from frame 102, and the cycle is repeated.
  • the cores C M are then cut into preferred core lengths. Metal tips may also be added to the restored cores.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
EP19960305538 1995-07-28 1996-07-29 Verfahren und Vorrichtung zur Wiederverwertung von Wickelkernen Expired - Lifetime EP0755893B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01309940A EP1227054A1 (de) 1995-07-28 1996-07-29 Verfahren und Vorrichtung zum Recyclen von Hülsen

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US161695P 1995-07-28 1995-07-28
US1616 1995-07-28
US1616P 1995-07-28

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP01309940A Division EP1227054A1 (de) 1995-07-28 1996-07-29 Verfahren und Vorrichtung zum Recyclen von Hülsen

Publications (3)

Publication Number Publication Date
EP0755893A2 true EP0755893A2 (de) 1997-01-29
EP0755893A3 EP0755893A3 (de) 1998-06-24
EP0755893B1 EP0755893B1 (de) 2002-07-10

Family

ID=21696998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960305538 Expired - Lifetime EP0755893B1 (de) 1995-07-28 1996-07-29 Verfahren und Vorrichtung zur Wiederverwertung von Wickelkernen

Country Status (3)

Country Link
EP (1) EP0755893B1 (de)
CA (1) CA2174894C (de)
DE (1) DE69622229T2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000003868A1 (en) * 1998-07-15 2000-01-27 A.P.E. - Trading Oy Method and device for jointing core ends
WO2003004393A1 (en) * 2001-07-05 2003-01-16 Core Link Ab Method and device for jointing of cores
WO2004087551A1 (en) * 2003-04-01 2004-10-14 Core Link Ab Device for applying a sheet of material
WO2006048496A1 (en) * 2004-11-02 2006-05-11 Raumaster Paper Oy Method and apparatus for producing a core

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200079065A1 (en) 2018-09-12 2020-03-12 Great Northern Corporation Wrapped paperboard packaging

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005274A (en) * 1987-04-03 1991-04-09 Hans Timell Mounting device with transfer means for advancing tubular sleeves between different work stations
DE4218113C1 (en) * 1992-06-02 1993-06-03 Fa. Gustav Wilms, 4515 Bad Essen, De Material roll core renovation - has pointed mandrels at slight displacement inserted in each end prepd. with inner adhesive coating for working in during rotation
DE4209224A1 (de) * 1992-03-21 1993-09-23 Zanders Feinpapiere Ag Verfahren zum aufweiten von an ihren enden deformierten hohlzylindrischen wickelkernen von auf diesen wickelkernen aufgewickelten materialbahnen und vorrichtung zum stabilisieren der aufgeweiteten wickelkerne
WO1994019271A1 (en) * 1993-02-18 1994-09-01 Uno Johansson A method for jointing bobbin sections and plant herefor
WO1995014631A1 (en) * 1993-11-23 1995-06-01 Bergslagsteknik Ab Method and device for joining cardboard supporting sleeves
FR2713547A1 (fr) * 1993-12-07 1995-06-16 Pack Ind Sa Procédé et dispositif pour rénover des tubes, notamment des tubes en carton.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005274A (en) * 1987-04-03 1991-04-09 Hans Timell Mounting device with transfer means for advancing tubular sleeves between different work stations
DE4209224A1 (de) * 1992-03-21 1993-09-23 Zanders Feinpapiere Ag Verfahren zum aufweiten von an ihren enden deformierten hohlzylindrischen wickelkernen von auf diesen wickelkernen aufgewickelten materialbahnen und vorrichtung zum stabilisieren der aufgeweiteten wickelkerne
DE4218113C1 (en) * 1992-06-02 1993-06-03 Fa. Gustav Wilms, 4515 Bad Essen, De Material roll core renovation - has pointed mandrels at slight displacement inserted in each end prepd. with inner adhesive coating for working in during rotation
WO1994019271A1 (en) * 1993-02-18 1994-09-01 Uno Johansson A method for jointing bobbin sections and plant herefor
WO1995014631A1 (en) * 1993-11-23 1995-06-01 Bergslagsteknik Ab Method and device for joining cardboard supporting sleeves
FR2713547A1 (fr) * 1993-12-07 1995-06-16 Pack Ind Sa Procédé et dispositif pour rénover des tubes, notamment des tubes en carton.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000003868A1 (en) * 1998-07-15 2000-01-27 A.P.E. - Trading Oy Method and device for jointing core ends
US6706133B1 (en) 1998-07-15 2004-03-16 A.P.E.-Trading Oy Method and device for jointing core ends
WO2003004393A1 (en) * 2001-07-05 2003-01-16 Core Link Ab Method and device for jointing of cores
WO2004087551A1 (en) * 2003-04-01 2004-10-14 Core Link Ab Device for applying a sheet of material
WO2006048496A1 (en) * 2004-11-02 2006-05-11 Raumaster Paper Oy Method and apparatus for producing a core

Also Published As

Publication number Publication date
DE69622229T2 (de) 2003-02-27
CA2174894A1 (en) 1997-01-29
CA2174894C (en) 1999-06-15
EP0755893B1 (de) 2002-07-10
DE69622229D1 (de) 2002-08-14
EP0755893A3 (de) 1998-06-24

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