EP0907600B1

EP0907600B1 - Reel web turn-up device

Info

Publication number: EP0907600B1
Application number: EP97922679A
Authority: EP
Inventors: Philip W. Smith; Brian C. Adamski
Original assignee: Beloit Technologies Inc
Current assignee: Beloit Technologies Inc
Priority date: 1996-06-17
Filing date: 1997-04-29
Publication date: 2003-03-26
Anticipated expiration: 2017-04-29
Also published as: DE69720214D1; CA2258533A1; CA2258533C; DE69720214T2; WO1997048632A1; JP3205935B2; EP0907600A1; JPH11513007A

Abstract

Two water jets cut a paper web (26) as it is led over a winder drive roll (36). The water jets are angled with respect to the cut so the water used in the cutting action is entirely directed onto the portion of the web which is severed. An adhesive material, for example an automatically applied tape (24), is introduced between the upper surface of the web (26) and a spool (28) for forming a new reel (32) of paper. The use of an adhesive causes the paper leader to engage with the spool (28), thus assuring a tight, uniform and consistent initiation of the web wrapped onto the new spool (28). An automatic tape applicator (22), similar to that used for taping cardboard boxes, may be used to insert a double-sided adhesive tape (24) onto the web (26) or into the nip (40) formed between the spool (28) and the winder drum (36).

Description

FIELD OF THE INVENTION

The present invention relates to paper winders in general and in particular to apparatus and methods for transferring a continuously formed web from a forming reel to a new spool.

BACKGROUND OF THE INVENTION

From the earliest days of the development of the Fourdrinier process for papermaking, the economical manufacture of paper has depended on forming the paper as a continuous web. The final step of winding the paper web onto a reel involves starting the formation of a new reel and stopping the winding of a reel which has reached a finished size. In a modem papermaking machine the web is often formed at speeds of up to 1200-1850 meters per minute (4,000-6,000 feet per minute) or more. At the same time the speed at which the paper is made has been increased, the width of the paper web formed has been increased to up to 10 meters (400 inches). The size and speed of reel production has led to a need for improved ways of changing spools.
A number of processes for changing over between a completed reel of paper and the new spool upon which the next reel of paper will start have been developed. One method employs a tape which rips across the paper web and directs it onto a new spool. Such a system is shown in U.S. Patent No. 2,461,246 to Weyenberg.
For some, usually very thin, grades of paper, including board grades, the forming reel is slowed down allowing a bubble of excess loose web to form which is then caught in the nip between the new roll and the drive roll. Thus caught, the web is torn free from the already formed roll.
Another method employs a slasher/gooseneck where a tail or leader of paper is ripped from the edge or center of the web. This tail or leader is then directed onto the new spool. The tail was often torn and formed or directed by jets of air. These systems relied on the mechanical properties of a typical paper web wherein a tear in a sheet will tend to propagate in the cross-machine direction to the edge of the web, thus completely severing it.
Slasher/gooseneck turn-up systems lack effectiveness for certain grades of paper where the web will not readily and rapidly tear from the tail or lead to the edges of the sheet. Also, on heavy grades, the slasher cannot penetrate the sheet to initiate the tear.
All the foregoing systems, the slasher, the bubble, or the tape, can result in an uneven thickness of paper being wound on the spool as a reel of paper is started. In the past, non-uniformity of the wound paper web caused by the paper building up on one edge or the middle of the spool has resulted in the paper close to the spool developing defects which require the central portion of the paper reel be scrapped. This scrapping of paper represents a cost or inefficiency and is contrary to the modern ideal of zero-defect manufacturing.
To overcome the resistance of some modern papers to tearing in the cross-machine direction and to insure a more uniform and speedy separation of the web, knives, as shown in U.S. Patent No. 4,445,646, or water jets, as shown in EP App. 0 543 788 A1, have been used to rapidly sever the web thus forming a tail or leader which is used to start a new reel.
In the past, water jets, when used to cut the paper web, have been positioned away from the winder drum which has resulted in an open draw where the tail or leader is unsupported. This lack of support has necessitated air showers to attempt to keep the web in place until it is wound around the spool. This type of system is shown in US Patent No. 5,314,132 to Masatoshi et al.
In JP-A-60 191 947, there is described a reel tum-up apparatus according to the preamble of claim 1 and a method according to the preamble of claim 25.
What is needed is an apparatus and method for rapidly severing a paper web and directing the paper web to positively engage with a new spool so the spool starts out with a uniform tight wrap.
The object of the present invention is to provide a suitable adhesive application means for causing the web tail to adhere the new spool and to provide a suitable cutting means for severing the paper web against the winder roll.
To achieve this, the reel turn-up apparatus of the invention is characterized by the features claimed in the characterizing part of claim 1 and the invention provides a method according to the characterizing part of claim 25.
Advantageous embodiments of the invention are claimed in the subclaims.
The web turn-up device of this invention employs two water jets or water knives which cut a paper web as it is led over a winder roll. Water jets are angled with respect to the cut so the water used in the cutting action is entirely directed onto the portion of the web which is severed and does not wet the paper being wrapped onto the newly formed roll. An adhesive material, either an automatically applied tape or a sprayed-on glue, can be introduced between the upper surface of the web and the spool of the new forming roll or reel of paper. The use of an adhesive means the paper leader or tail is instantly engaged with the spool, thus assuring a tight, uniform and consistent initiation of the web wrapped onto the new spool. If an adhesive is employed, it may be sprayed immediately upstream in the machine direction of the water knives used to sever the web. If tape is used, an automatic tape applicator, similar to that used for taping cardboard boxes, may be used to insert a double-sided sticky tape onto the spool, the web, or into the nip formed between the spool and the winder drum.
It is a feature of the present invention to provide a winder which produces rolls of more uniform wrap in order to reduce spoilage.
It is another feature of the present invention to provide an apparatus for rapidly severing a broad range of paper webs so that a new reel of paper may be started.
It is a further feature of the present invention to provide an apparatus for adhesively bonding a paper web to a spool.
It is yet another feature of the present invention to provide an apparatus which can produce one or more reels of paper suitable for use by end users.
It is still a further feature of the present invention to provide an apparatus and method for using a water knife to sever a paper web wherein the trailing end created is substantially free of wetting from the water knives.
Further objects, features and advantages of the invention will be apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic side elevational view of the web cutting and reel turn-up apparatus of this invention.
FIG. 2 is a schematic side elevational view of an alternative embodiment of the web cutting and reel turn-up apparatus of this invention.
FIG. 3 is a schematic side elevational view of another alternative embodiment of the web cutting and reel turn-up apparatus of this invention.
FIG. 4 is a schematic side elevational view of a further alternative embodiment of the web cutting and reel turn-up apparatus of this invention.
FIG. 5 is a schematic plan view of a water knife used with the web cutting and reel turn-up apparatus of FIGS. 1-4.
FIG. 6 is a plan view of the cutting path created by the water knives employed in the apparatus of FIGS. 1-4.
FIG. 7 is a plan view of another cutting path created by the water knives employed in the apparatus of FIGS. 1-4.
FIG. 8 is a plan view of a further cutting path created by the water knives employed in the apparatus of FIGS. 1-4.
FIG. 9 is an isometric view partly cut away of the tape application wheel of the tape applicator of FIG. 2.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring more particularly to FIGS. 1- 9 wherein like numbers refer to similar parts, a web turn-up apparatus 20 is shown in FIG. 1. The apparatus 20 employs a tape dispenser 22 which applies doubled-side adhesive tape 24 to a paper web 26. The web 26 is formed on a papermaking machine and the apparatus 20 is employed to wind the web 26 onto spools 28 to form reels 32. Papermaking is a continuous process which cannot be readily started and stopped without incurring considerable expense. Hence the reels of paper which are formed must be started and cut off of the continuously formed web 26 without interrupting the continuous production of paper.
There are two important steps which must be accomplished in order to start a new reel of paper forming. First, the web must be severed from the completed reel 32, such as shown in FIG. 2. Second, the severed web must be wound on a new spool 28.
The web turn-up apparatus 20 forms part of a paper winder 34 shown schematically in FIGS. 1-4. The winder 34 has a winder roll 36 onto which the paper web 26 is fed from a support roll 38 on the papermaking machine. In a typical winder, an arm or other mechanism, not shown in FIGS. 1-4 for clarity, positions a spool 28 over the top 40 of the winder roll 36 where the web 26 is caused to begin to wind around the spool 28. The spool 28 is then guided in contact with the surface 42 of the winder roll 36 to a position downstream in the machine direction from the winder roll 36 as shown in FIG. 2.
The turn-up apparatus 20 employs two water knives 44, 46 to cut the web 26 against the winder roll 36 surface 42. As shown in FIG. 5, the water knife 44 is positioned on a cross beam 48 which extends across the web 26 in the cross machine direction. The water knife has a nozzle 50 normally constructed of a hardened jewel such as a diamond, ruby or emerald through which water is forced at very high pressure, a typical maximum being 4200 kilograms per square centimeter (60,000 psi). The water knife 44 has a relatively low flow rate of about .3785 liters per minute (one tenth of a gallon per minute). Water knives for cutting paper webs are well known. In the past, however, the typical application of water knives has not cut the web against the winder roll. Instead the web has been cut either against a prewinder support roll or during the open draw between the support roll and the winder roll. The typical application of water knives in a turnup device has usually resulted in the cut web being unsupported during part of its travel on the way to a new spool. In prior art devices the water knives have been directed normal to the surface of the web being cut. If the web is cut against a roll surface the water from the knife will wet both the paper forming the finished reel as well as the tail which is formed for threading the web onto a spool. Wetting the end of the completed reel is not a problem because only a small amount of paper is damaged by the water. However water on the tail can affect the integrity of the reel formed.
The uniform structural integrity of the formed paper reel is critical to avoiding defects in the paper wound into the reel. Recent studies of the causes of paper breaks in printing presses and rewinders has shown that as much as 80 percent of paper breaks are caused by paper which was originally wound closest to the spool on which the reel was formed. The paper which is first wound onto the spool is most susceptible to damage from an improperly formed roll.
The two water jets or water knives 44, 46 of the apparatus 20 are angled 10 to 30 degrees away from the paper web tail being formed. The angling of the water knives 46, 44 is in the cross machine direction towards the edges 58 of the paper web so that the water from the water knives will spray onto the paper that is being wound into the forming reel not onto the tail 52, 54, 56 that is the start of a new reel. The water knives also can be angled in the down machine direction or a combination of the down machine direction and towards the edges of the paper web.
There are several configurations of the apparatus of this invention. The apparatus shown in FIG. 1 applies an adhesive tape to the web against a support roll 98 ahead of the water knives. The apparatus of FIG. 2 applies the adhesive tape to the rotating surface 106 of the spool, such that the tape adheres to the tail which is applied thereover. The apparatus of FIG. 3 applies the adhesive tape to the stationary spool 28 prior to its moving into engagement with the winder roll. The apparatus of FIG. 4 applies the adhesive tape to the web as it travels over the winder roll between the water knives and the spool.
The water jets from the water knives will erode the surface 42 of the winder roll 36 if they are not kept in motion with respect to the surface 42. A single water knife 44 is shown in FIG. 5. The knife 44 is mounted on a lateral transport means such as a pneumatic piston 60 for motion in the cross-machine direction. High pressure cables or hoses can be contained in a flexible cable tray 62. Because of the rigidity of the high pressure water supply line 64 a cable tray may not be required in all circumstances.
Because the paper web 26 is advanced beneath the water knives 44, 46, if the waters knives are held stationary they will cut a straight line 66 as shown in FIGS. 6-8. The combination of the web movement and the substantially linear movement of the water knives in the cross machine direction causes the water knives to make diagonal curved cuts 68 across the web 26 as shown in FIGS. 6-8. The pneumatic drive 60 can move the water knife 44 at about 10 meters per second (400 inches per second). Two knives moved from the center can thus cut the web in about a quarter of a second for a 5 meters (200 inch) wide web or one half second for a 10 meters (400-inch web).
As shown in FIG. 1, the water knives 44 and 46 are spaced apart in the machine direction so they do not interfere with each others motion. As shown in FIG. 6, a somewhat triangular shaped leading edge tail 72 is formed when the water knives, which start out parallel, cross.
As shown in FIG. 7, the water knives 44, 46 may begin on a common machine direction line 76 and then diverge such that a somewhat triangular shaped tail 78 is formed.
As shown in FIG. 8, water knives 44, 46 may begin spaced apart and never cross to thereby form a thin rectangular tail 82 joined to a larger somewhat triangular shaped tail 84. While the diagonal curved cuts 68 shown in figures 6-8 are created as a result of the combination of the web movement and the substantially linear movement of the water knives in the cross machine direction, it should be understood that various other cuts can be created by moving the water knives in a nonlinear, e.g., curved, manner, in the cross machine direction. Nevertheless, while the water knives can be used to make other cuts, the cuts illustrated in figures 6-8 are probably the most practical.
Once the web 26 has been severed from the completed reel, the turn-up apparatus 20 must direct the severed web onto a new spool 28 to begin a new reel. In the past this has been accomplished by directing the tail onto the spool 28 with a gooseneck and an air jet. In some cases the spool has been precoated with an adhesive material. Precoating the spools 28 with adhesive can result in difficulties in handling and shipping the spools. On the other hand, failure of the web to be positively held on the spool 28 can result in a loose web at the start of reel, which leads to a structurally weak reel with resultant defects in the wound web. The turn-up apparatus 20 employs the tape dispenser 22 which dispenses double-sided adhesive tape 24.
Tape dispensers have typically been developed by adhesive tape suppliers for use in specialty applications such as assembling cardboard boxes, for example see U.S. Patents Nos. 4,255,218 and 5,312,501 which are assigned to Minnesota Mining and Manufacturing Company ("3M") of St. Paul, Minnesota.
A tape dispenser 22 useful for the present invention feeds a quantity of two-sided adhesive tape onto a vacuum wheel 23, as shown in FIG. 2. The tape as wound on the tape reel 25 has a release liner 27 illustrated in FIG. 9. The release liner 27 prevents the tape from sticking to itself when wound in the tape reel. The tape 29 is dispensed onto the vacuum wheel 23 so that the release liner is held against the perforated surface 31 of the vacuum wheel 23. The tape dispenser 22 cuts off a piece of tape which covers substantially 360 degrees of the surface 31 of the vacuum wheel 23. The tape dispenser 22 then uses a servomotor (not shown) to bring the tape on the vacuum wheel 23 up to a selected speed. Where the tape is to be applied to a spool 28 the vacuum application wheel is driven so its surface speed is the same as the surface speed of the spinning spool 28. The surface speed of the spool will be substantially the same as the speed of formation of the web 26.
Application of the double-sided tape to the spool 28 is shown in FIG. 9. The applicator apparatus 89 is an improvement to the general design for a tape dispenser as shown in FIG. 2. The applicator apparatus 89 simplifies the means by which the vacuum wheel 23 is driven so as to have a surface velocity identical to the surface velocity of the spool 28.
A traction wheel 33 with a traction surface 31 is placed in frictional engagement with the spool 28 and is driven by the spool so that the surface 35 of the traction wheel 33 has the same direction and velocity as the spool. The traction wheel 33 drives the vacuum wheel 23 through a mechanical drive 37 which is configured to cause the surface 31 of the vacuum wheel 23 to match the velocity and direction of the surface of the spool 28. The mechanical drive 37 is also configured to allow the vacuum wheel 23 to rotate into and out of engagement with the spool. Thus, to apply adhesive tape to the spool 28 a quantity of tape is loaded onto the vacuum wheel 23, and positioned so the release liner is held by the vacuum which is drawn through the surface of the vacuum wheel 23.
Once a length of tape is dispensed to the vacuum wheel 23 with the adhesive side facing up, the tape dispenser 89 is rotated down so the traction wheel 33 engages the spool surface and is thereby driven to match speeds with the spool surface. The traction wheel 33, through the mechanical drive 37, brings the tape of the vacuum wheel 23 up to the velocity of the spool 28. The mechanical drive 37 is shown as three gears: a first gear 39 is axially mounted to the drive wheel 33, a second gear 41 is mounted axially to the vacuum wheel 23, and a transfer gear 45 transmits the rotation velocity of the drive wheel 33 to the vacuum wheel 23. The gears 39, 41, 45 are chosen so that the surface velocity of the drive wheel 33 and the vacuum wheel 23 are the same. Other drive mechanisms could be used including two pulleys mounted on the vacuum wheel and the drive wheel with a belt connecting them; two sprockets connected by a chain; or a more complicated gear drive.
Preferably an angular sensor will be mounted on the vacuum wheel 23 so that the leading edge 47 of the tape 29 can engage the spool first. A pneumatic cylinder or similar hydraulic or mechanical actuator moves a lever arm 49 which brings the vacuum wheel 23 into engagement with the spool 28. The pneumatic cylinder (not shown) is actuated so that the leading edge 47 of the tape engages the spool first and the vacuum wheel 23 is only engaged with the spool 28 during a single revolution of the vacuum wheel 23. The force of the vacuum on the release liner is greater than the peel strength of the tape on the release liner, hence when the vacuum wheel 23 engages the web or the spool 28 the tape 29 is peeled off the release liner, and the release liner remains on the vacuum wheel. The tape as applied to the web thus presents an adhesive surface exposed to the fresh spool. The tape 29 is applied so that when the web 26 is cut by the water knives 44, 46 it is picked up and wrapped around the spool 28.
FIGS. 6-8 show the placement of a strip of tape 100 and its position on the paper web tails 52, 54, 56. The tape 24 is applied in the machine direction and one or more tape dispensers 22 may be used. If multiple tape dispensers are employed they will be spaced across the web in the cross machine direction.
As shown in FIG. 5, the frame 48 and the pneumatic piston 60, in addition to supporting and moving the water knife nozzles 50, also support and move the adhesive dispensing nozzles 102 which are spaced from the water knife nozzles 50 in the up machine direction. The adhesive dispensed from the nozzles 102 forms adhesive regions 104 on the paper tails 52, 54, 56, as shown in FIGS. 6-8, respectively. When the adhesive regions 104 make contact with the spool 28 they bind the web 26 to the spool 28--assuring a uniform tight start on the reel 32 which results in a reel of structural uniformity with low defects. The adhesive regions 104 can be used independently from the strip of tape 100 or in conjunction with the strip of tape 100. Furthermore, the adhesive regions 104 can be used in place of the strip of tape 100.
The adhesive must be fast acting in order to function in the extremely short time between the moment when the adhesive is applied and when it passes through the nip 40 between the winder roll surface 42 and the spool 28. Contact adhesives or two part adhesives could be used but hot melt adhesives are preferred. The rapid quenching of the hot melt adhesive as it enters the nip and is spread out results in the needed rapid bond between the tails 52, 54, 56 and the spool 28. An exemplary adhesive applicator machine is a Series 3100 applicator supplied by Nordson Corporation, 28610 Clemens Road, Westlake, Ohio 44145, which can be used with H201 modular hot melt guns. In one test, high-tack glue obtained from Findley Adhesives of Wauwatosa, Wisconsin, part #H2187-01 was applied from centrally positioned nozzles for one-half second just prior to traversing the water-jets towards the sheet edges. Another glue which was tested and is available from Findley Adhesives is part #H1231. For the relatively narrow test web a single centrally located application of glue was effective. For production papermaking machines where the width of the paper may be 10 meters (400 inches), it may be necessary to continuously apply hot melt glue behind the water knives as they move toward the edges of the web.
As shown in FIG. 1, the tape 24 is applied against a support roll 98 in front of the winder roll 36. FIG. 2 shows the tape dispenser 22 positioned about a reel spool 28 for applying double sided adhesive tape 24 to the spool surface 106. Thus when the web tail 52, 54, 56 passes beneath the spool 28 it becomes adhesively bound to the spool 28. As shown in FIG. 1, the tape dispenser 22 is only required at the start of a new reel, and may be retracted after it has applied tape to the spool 28 thus avoiding any mechanical interference between the tape dispenser 22 and the mechanism controlling the formation of the reel 32.
Timing of the application of the double sided adhesive tape 24 is critical in the turn-up apparatus 20 of FIG. 1, the turn-up apparatus 120 of FIG. 2 and the turn-up apparatus 320 of FIG. 4. The tape 24 as shown in FIG. 1 must be applied so that it is positioned on the tail of the web 26 as illustrated in FIGS. 6-8. The tape 24 as applied to the spool 28 in FIG. 2 must be timed so that the tape 24 is applied to the spool surface 106 so that it comes in contact with the tail 52, 54, 56 and not the uncut web 26.
The tape 24 as shown in FIGS. 1 and 2 must be applied at a machine speed typically in the range of 600-1850 meters per minute (2,000 to 6,000 feet per minute). The alternative embodiment turn-up apparatus 220 shown in FIG. 3 applies the double sided adhesive tape to the spool 28 before the spool is brought into contact with the winder roll 36. In the turn-up apparatus 220 timing of the application of the tape is not critical and the tape can be applied before the spool 28 is spun up to the velocity of the paper web 26. Motion of the spool 28 into contact with the web 26 on the winder roll 36 controls when the adhesive tape 24 makes contact with the tails shown in FIGS. 6-8.
The tape 24 can also be applied on an alternative embodiment turn-up apparatus 320, shown in FIG. 4. In the apparatus 320, the tape is applied where the web passes over the winder roll 336. The tape applicator 22 positions a tape wheel 396 between the spool 338 and the water knives 44, 46. The turn-up apparatus 320 positions the tape applicator 22 directly ahead of the spool 338.
It should be understood that tape dispensers or applicators of various design and manufactured by various companies could be used, and that a readily available source of tape applicators are those used in the fabrication of cardboard boxes.
It should also be understood that the double sided adhesive tape can be used together with a spray adhesive applicator or by itself.
It should be understood that the turn-up apparatus 20 when employed with multiple tape applicators can be used to facilitate the formation of multiple splits so that a single web 26 may be wound into a multiplicity of reels for removal from the papermaking machine.
It is understood that the invention is not limited to the particular construction and arrangement of parts herein illustrated and described, but embraces such modified forms thereof as come within the scope of the following claims.

Claims

A reel turn-up apparatus (20; 120; 220; 320) suitable for severing a web of paper (26) and starting a new reel (28) from a tail formed by severing the web (26) without interrupting the continuous reeling of paper as one reel is finished and the new reel (28) is started, the apparatus comprising:

a cutting means (44) mounted for motion in a cross machine direction to cut the web (26) and thereby define a web tail,

a winder roll (36; 336) positioned beneath the cutting means (44) and supporting the paper web (26),

a spool (28; 328) positioned over the winder roll (36; 336) and engaged with the winder roll to rotate in the direction opposite the direction of rotation of the winder roll (36; 336), wherein the tail extends between the winder roll (36; 336) and the spool (28) and onto the spool (28), and

a means (22; 102) for applying an adhesive to the web (26) for causing the web (26) to adhesively attach to the spool (28; 328), wherein there is no open draw of the web (26) between the cutting means (44) and the spool (28; 328),

characterized in that said cutting means (44) comprises a water knife (44) movable to cut the web (26) against the winder roll (36; 336) to define the tail, and
in that said adhesive applying means (22; 102) applies the adhesive to the web tail for causing the web tail to adhesively attach to the spool (28; 328).
The apparatus of claim 1, characterized in that there are two water knives (44, 46) mounted for motion in opposite cross machine directions.
The apparatus of claim 1, characterized in that the means (22; 102) for applying an adhesive to the web comprises a tape applicator (22).
The apparatus of claim 3, characterized in that the tape applicator (22) is positioned between the water knife (44) and the spool (28; 328) in the machine direction to apply double sided adhesive tape to the web (26) after it has been cut by the water knife (44).
The apparatus of claim 3, characterized in further comprising a support roll (98) positioned upmachine from the winder roll (36) and spaced from the winder roll (36), wherein the tape applicator (22) is positioned over the support roll (98) and applies double sided adhesive tape to the web (26) before it is cut by the water knife (44).
The apparatus of claim 1, characterized in that the means (22; 102) for applying an adhesive to the web is a nozzle (102) for applying adhesive, wherein the nozzle (102) is mounted upstream in the machine direction from the water knife (44).
The apparatus of claim 6, characterized in that the nozzle (102) for applying adhesive is mounted to the water knife (44) and moves with the knife (44).
The apparatus of claim 1, characterized in that there are two water knives (44, 46), the water knives (44, 46) being angled in the downmachine direction to avoid wetting the portion of the web (26) forming the tail for starting a new reel.
The apparatus of claim 1, characterized in that there are two water knives (44, 46), the water knives (44, 46) being angled in the cross machine direction towards a portion of the web (26) being cut off to avoid wetting the portion of the web (26) forming a tail starting a new reel.
The apparatus of claim 9, characterized in that the two water knives (44, 46) are each angled 10 to 30 degrees away from the paper web tail being formed, the angling of the water knives (44, 46) being in the cross machine towards the edges of the paper web (26) so that the water from the water knives (44, 46) will spray onto the paper (26) that is being wound into a forming reel and not onto the tail that is the start of the new reel.
The apparatus of claim 1, characterized in that the spool (28) has a surface engaged against the winder roll (36) so the spool (28) rotates in engagement with the winder roll (36).
The apparatus of claim 11, characterized in that there are two water knives (44, 46) mounted for motion in opposite cross machine directions.
The apparatus of claim 12, characterized in that the two water knives (44, 46) are angled 10 to 30 degrees away from the paper web tail being formed, the angling of the water knives (44, 46) being in the cross machine direction towards the edges of the paper web (26) so that the water from the water knives (44, 46) will spray onto the paper that is being wound into a forming reel and not onto the tail that is the start of the new reel.
The apparatus of claim 11, characterized in that in that the means (22; 102) for applying an adhesive to the spool (28) is a tape applicator (22).
The apparatus of claim 14, characterized in that the tape applicator (22) comprises :

a traction wheel (33) engageable with the spool (28),

a tape holding wheel (23) which holds a quantity of double sided adhesive tape (24), and

a mechanical linkage (37) between the traction wheel (33) and the tape holding wheel (23), wherein the tape holding wheel (23) is driven by the traction wheel (33) through the mechanical linkage (37) to move the quantity of tape at the same velocity as the surface of the spool (28), and wherein the tape holding wheel (23) is rotatable into and out of engagement with the spool surface to thereby apply the quantity of tape.
The apparatus of claim 1, characterized in that the spool (28) has a surface (106) engaged with the winder roll (36) so the spool (28) rotates in engagement with the winder roll (36), and
in comprising a tape applicator (22) for applying a quantity of tape having adhesive on both sides to the spool surface (106), wherein the tape applicator (22) has a traction wheel (33) engageable with the spool (28), a tape holding wheel (23) which holds a quantity of double sided adhesive tape (24), and a mechanical linkage (37) between the traction wheel (33) and the tape holding wheel (23), wherein the tape holding wheel (23) is driven by the traction wheel (33) through the mechanical linkage (37) to move the quantity of tape at the same velocity as the surface of the spool (28), and wherein the tape holding wheel (23) is rotatable into and out of engagement with the spool surface (106) to thereby apply the quantity of tape.
The apparatus of claim 1, characterized in that the adhesive applicator (22; 102) is positioned over the winder roll (336) and in front of the spool (328).
The apparatus of claim 17, characterized in that there are two water knives (44, 46) mounted for motion in opposite cross machine directions over the winder roll (336) upstream of the spool (328) and downstream of the adhesive applicator (22).
The apparatus of claim 18, characterized in that the water knives (44, 46) are angled in the downmachine direction to avoid wetting the portion of the web (26) forming a tail for starting a new reel.
The apparatus of claim 18, characterized in that the water knives (44, 46) are angled in the cross machine direction to avoid wetting the portion of the web (26) forming a tail for starting a new reel.
The apparatus of claim 20, characterized in that the two water knives (44, 46) are each angled 10 to 30 degrees away from the paper web tail being formed, the angling of the water knives (44, 46) being in the cross machine direction towards the edges of the paper web (26) so that the water from the water knives (44, 46) will spray onto the paper that is being wound into a forming reel and not onto the tail that is the start of the new reel.
The apparatus of claim 17, characterized in that the adhesive applicator (102) is a hot melt glue gun.
The apparatus of claim 17, characterized in that the adhesive applicator (102) is a nozzle (102) for spraying adhesive, and the nozzle (102) is mounted upstream in the machine direction from the knife (44).
The apparatus of claim 23, characterized in that the nozzle (102) for spraying adhesive is mounted to the knife (44) and moves with the knife (44).
A method of accumulating a quantity of paper on a spool (28; 328) and removing it from a papermaking machine on a continuous basis, the method comprising the steps of:

directing the web of paper (26) being formed on the papermaking machine over a winder roll (36; 336),

applying an adhesive means (22) onto the web (26), direction in a position downstream in the machine direction from the applied adhesive means (22; 102) to form a tail,

wrapping the tail around a spool (28; 328) positioned over the winder roll (36; 336) so the adhesive means (22; 102) on the web (25) attaches the web (26) to the spool (28; 328),and

winding a reel of paper onto the spool (28; 328),

characterized in that the step of cutting the web (26) comprises directing a stream of water against the winder roll (36; 336) from at least one water knife (44, 46), and
in that the adhesive is applied to the web tail for causing the web tail to adhesively attach to the spool (28; 398).
The method of claim 25, characterized in that the step of applying the adhesive means (22, 102) includes spraying adhesive onto the paper web (26) before the web (26) reaches the at least one water knife (44, 46).
The method of claim 25, characterized in that the step of applying the adhesive means (22, 102) comprises applying double sided adhesive tape (24) to the paper web (26) before the web (26) reaches the water knife (44).
The method of claim 25, characterized in that the water knife (44, 46) is angled with respect to the surface of the winder roll (36; 336) to direct the stream of water towards a portion of the web (26) being severed and away from the tail being formed.
The method of claim 25, characterized in that the step of applying the adhesive means (22, 102) comprises applying double sided adhesive tape (24) from a tape dispenser (22) onto the spool (28), and
in that the step of cutting the paper web (26) is performed in a position upstream in the machine direction from the spool (28) to form the tail,
whereby the tape on the spool (28) attaches the web (26) to the spool (28) when the tail is wrapped around the spool (28).
The method of claim 29, characterized in that the water knife (44, 46) is angled with respect to the surface of the winder roll (36) to direct the stream of water towards a portion of the web (26) being severed and away from the tail being formed.
The method of claim 29, characterized in that two water knives (44, 46) are mounted for motion in the cross machine direction and wherein the knives (44, 46) start from a position at about a middle portion of the paper web (26) and are moved in opposite directions in the cross machine direction towards the edges of the web (26) thus substantially severing the web (26) in the cross machine direction.
The method of claim 31, characterized in that the water knives (44, 46) are moved at a speed towards the edges of the web (26) approximately equal to the machine speed of the paper web (26).
The method of claim 25, characterized in that the step of applying the adhesive comprises applying a quantity of hot melt adhesive to the web of paper (26) in the upstream machine direction from the spool (28),
in that the water knife (44) directs a stream of water against the winder roll (36) before the adhesive reaches the position of the water knives (44), and in comprising the step of:

passing the web (26) and the quantity of hot melt glue through a nip formed between the spool (28) and the winder roll (36), the quantity of hot melt glue binding the web (26) to the spool (28) and wrapping the formed tail around the spool (28) to start a new reel of paper.
The method of claim 25, characterized in that the step of applying the adhesive comprises applying a quantity of adhesive double sided tape (24) to the web of paper (26) extending in the machine direction,
in that the at least one water knife (44) is moved in the cross machine direction to cut the web to form the tail before the adhesive tape (24) reaches the position of the water knife (44), and
in that the formed tail is wrapped around the spool (28) to start a new reel of paper and engaging the applied tape (24) with the spool (28).
The method of claim 34, characterized in that the step of cutting the web (26) comprises directing the stream of water from the at least one water knife (44, 46) against the winder roll (36) at an angle with respect to the roll surface, the stream of water being thereby directed toward a portion of the web (26) which is being cut off so the formed tail is not wetted.
The method of claim 34, characterized in further comprising the step of winding a reel of paper onto the spool (28).
The method of claim 34, characterized in that two water knives (44; 46) are mounted for motion in the cross machine direction, wherein the knives 44, 46) start from a position at about a middle portion of the paper web (26) and move in opposite directions in the cross machine direction towards the edges of the web (26) thus substantially severing the web (26) in the cross machine direction.
The method of claim 37, characterized in that the water knives (44, 46) are moved at a speed towards the edges of the web (26) approximately equal to the machine speed of the paper web.