EP0907600B1 - Reel web turn-up device - Google Patents
Reel web turn-up device Download PDFInfo
- Publication number
- EP0907600B1 EP0907600B1 EP97922679A EP97922679A EP0907600B1 EP 0907600 B1 EP0907600 B1 EP 0907600B1 EP 97922679 A EP97922679 A EP 97922679A EP 97922679 A EP97922679 A EP 97922679A EP 0907600 B1 EP0907600 B1 EP 0907600B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- spool
- water
- tape
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
- B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/26—Cutting-off the web running to the wound web roll
- B65H19/265—Cutting-off the web running to the wound web roll using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the web
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/414—Winding
- B65H2301/41419—Starting winding process
- B65H2301/41427—Starting winding process involving arrangements for securing leading edge to core, e.g. adhesive tape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/417—Handling or changing web rolls
- B65H2301/4187—Relative movement of core or web roll in respect of mandrel
- B65H2301/4189—Cutting
- B65H2301/41898—Cutting threading tail and leading it to new core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/515—Cutting handled material
- B65H2301/5151—Cutting handled material transversally to feeding direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/515—Cutting handled material
- B65H2301/5153—Details of cutting means
- B65H2301/51534—Water jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2408/00—Specific machines
- B65H2408/20—Specific machines for handling web(s)
- B65H2408/23—Winding machines
- B65H2408/236—Pope-winders with first winding on an arc of circle and secondary winding along rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/84—Paper-making machines
Definitions
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- an adhesive may be sprayed immediately upstream in the machine direction of the water knives used to sever the web.
- 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.
- FIG. 1 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.
- the web must be severed from the completed reel 32, such as shown in FIG. 2.
- 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.
- an arm or other mechanism 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.
- 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.
- 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.
- 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.
- 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).
- 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.
- 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.
- 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.
- 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.
- 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.
- 3M Minnesota Mining and Manufacturing Company
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- FIG. 1 shows the tape 24 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.
- 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.
- 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.
- 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.
- 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.
- double sided adhesive tape can be used together with a spray adhesive applicator or by itself.
- 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.
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Abstract
Description
- 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.
- 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.
-
- 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.
-
- 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. Theapparatus 20 employs atape dispenser 22 which applies doubled-sideadhesive tape 24 to apaper web 26. Theweb 26 is formed on a papermaking machine and theapparatus 20 is employed to wind theweb 26 ontospools 28 to formreels 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 formedweb 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 anew spool 28. - The web turn-up
apparatus 20 forms part of apaper winder 34 shown schematically in FIGS. 1-4. Thewinder 34 has awinder roll 36 onto which thepaper web 26 is fed from asupport roll 38 on the papermaking machine. In a typical winder, an arm or other mechanism, not shown in FIGS. 1-4 for clarity, positions aspool 28 over the top 40 of thewinder roll 36 where theweb 26 is caused to begin to wind around thespool 28. Thespool 28 is then guided in contact with thesurface 42 of thewinder roll 36 to a position downstream in the machine direction from thewinder roll 36 as shown in FIG. 2. - The turn-up
apparatus 20 employs twowater knives web 26 against thewinder roll 36surface 42. As shown in FIG. 5, thewater knife 44 is positioned on across beam 48 which extends across theweb 26 in the cross machine direction. The water knife has anozzle 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). Thewater 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 apparatus 20 are angled 10 to 30 degrees away from the paper web tail being formed. The angling of thewater knives 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 thetail - 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 therotating 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 thestationary 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 thewinder roll 36 if they are not kept in motion with respect to thesurface 42. Asingle water knife 44 is shown in FIG. 5. Theknife 44 is mounted on a lateral transport means such as apneumatic piston 60 for motion in the cross-machine direction. High pressure cables or hoses can be contained in aflexible 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 thewater knives 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 diagonalcurved cuts 68 across theweb 26 as shown in FIGS. 6-8. Thepneumatic drive 60 can move thewater 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 edge tail 72 is formed when the water knives, which start out parallel, cross. - As shown in FIG. 7, the
water knives machine direction line 76 and then diverge such that a somewhat triangular shapedtail 78 is formed. - As shown in FIG. 8,
water knives rectangular tail 82 joined to a larger somewhat triangular shapedtail 84. While the diagonalcurved 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-upapparatus 20 must direct the severed web onto anew spool 28 to begin a new reel. In the past this has been accomplished by directing the tail onto thespool 28 with a gooseneck and an air jet. In some cases the spool has been precoated with an adhesive material. Precoating thespools 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 thespool 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-upapparatus 20 employs thetape dispenser 22 which dispenses double-sidedadhesive 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 avacuum wheel 23, as shown in FIG. 2. The tape as wound on thetape reel 25 has arelease liner 27 illustrated in FIG. 9. Therelease liner 27 prevents the tape from sticking to itself when wound in the tape reel. Thetape 29 is dispensed onto thevacuum wheel 23 so that the release liner is held against theperforated surface 31 of thevacuum wheel 23. Thetape dispenser 22 cuts off a piece of tape which covers substantially 360 degrees of thesurface 31 of thevacuum wheel 23. Thetape dispenser 22 then uses a servomotor (not shown) to bring the tape on thevacuum wheel 23 up to a selected speed. Where the tape is to be applied to aspool 28 the vacuum application wheel is driven so its surface speed is the same as the surface speed of the spinningspool 28. The surface speed of the spool will be substantially the same as the speed of formation of theweb 26. - Application of the double-sided tape to the
spool 28 is shown in FIG. 9. Theapplicator apparatus 89 is an improvement to the general design for a tape dispenser as shown in FIG. 2. Theapplicator apparatus 89 simplifies the means by which thevacuum wheel 23 is driven so as to have a surface velocity identical to the surface velocity of thespool 28. - A
traction wheel 33 with atraction surface 31 is placed in frictional engagement with thespool 28 and is driven by the spool so that thesurface 35 of thetraction wheel 33 has the same direction and velocity as the spool. Thetraction wheel 33 drives thevacuum wheel 23 through amechanical drive 37 which is configured to cause thesurface 31 of thevacuum wheel 23 to match the velocity and direction of the surface of thespool 28. Themechanical drive 37 is also configured to allow thevacuum 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 thevacuum wheel 23, and positioned so the release liner is held by the vacuum which is drawn through the surface of thevacuum wheel 23. - Once a length of tape is dispensed to the
vacuum wheel 23 with the adhesive side facing up, thetape dispenser 89 is rotated down so thetraction wheel 33 engages the spool surface and is thereby driven to match speeds with the spool surface. Thetraction wheel 33, through themechanical drive 37, brings the tape of thevacuum wheel 23 up to the velocity of thespool 28. Themechanical drive 37 is shown as three gears: afirst gear 39 is axially mounted to thedrive wheel 33, asecond gear 41 is mounted axially to thevacuum wheel 23, and atransfer gear 45 transmits the rotation velocity of thedrive wheel 33 to thevacuum wheel 23. Thegears drive wheel 33 and thevacuum 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 leadingedge 47 of thetape 29 can engage the spool first. A pneumatic cylinder or similar hydraulic or mechanical actuator moves alever arm 49 which brings thevacuum wheel 23 into engagement with thespool 28. The pneumatic cylinder (not shown) is actuated so that the leadingedge 47 of the tape engages the spool first and thevacuum wheel 23 is only engaged with thespool 28 during a single revolution of thevacuum 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 thevacuum wheel 23 engages the web or thespool 28 thetape 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. Thetape 29 is applied so that when theweb 26 is cut by thewater knives spool 28. - FIGS. 6-8 show the placement of a strip of
tape 100 and its position on thepaper web tails tape 24 is applied in the machine direction and one ormore 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 thepneumatic piston 60, in addition to supporting and moving thewater knife nozzles 50, also support and move theadhesive dispensing nozzles 102 which are spaced from thewater knife nozzles 50 in the up machine direction. The adhesive dispensed from thenozzles 102 formsadhesive regions 104 on thepaper tails adhesive regions 104 make contact with thespool 28 they bind theweb 26 to thespool 28--assuring a uniform tight start on thereel 32 which results in a reel of structural uniformity with low defects. Theadhesive regions 104 can be used independently from the strip oftape 100 or in conjunction with the strip oftape 100. Furthermore, theadhesive regions 104 can be used in place of the strip oftape 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 thewinder roll surface 42 and thespool 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 thetails 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 asupport roll 98 in front of thewinder roll 36. FIG. 2 shows thetape dispenser 22 positioned about areel spool 28 for applying double sidedadhesive tape 24 to thespool surface 106. Thus when theweb tail spool 28 it becomes adhesively bound to thespool 28. As shown in FIG. 1, thetape dispenser 22 is only required at the start of a new reel, and may be retracted after it has applied tape to thespool 28 thus avoiding any mechanical interference between thetape dispenser 22 and the mechanism controlling the formation of thereel 32. - Timing of the application of the double sided
adhesive tape 24 is critical in the turn-upapparatus 20 of FIG. 1, the turn-upapparatus 120 of FIG. 2 and the turn-upapparatus 320 of FIG. 4. Thetape 24 as shown in FIG. 1 must be applied so that it is positioned on the tail of theweb 26 as illustrated in FIGS. 6-8. Thetape 24 as applied to thespool 28 in FIG. 2 must be timed so that thetape 24 is applied to thespool surface 106 so that it comes in contact with thetail 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-upapparatus 220 shown in FIG. 3 applies the double sided adhesive tape to thespool 28 before the spool is brought into contact with thewinder roll 36. In the turn-upapparatus 220 timing of the application of the tape is not critical and the tape can be applied before thespool 28 is spun up to the velocity of thepaper web 26. Motion of thespool 28 into contact with theweb 26 on thewinder roll 36 controls when theadhesive tape 24 makes contact with the tails shown in FIGS. 6-8. - The
tape 24 can also be applied on an alternative embodiment turn-upapparatus 320, shown in FIG. 4. In theapparatus 320, the tape is applied where the web passes over thewinder roll 336. Thetape applicator 22 positions atape wheel 396 between the spool 338 and thewater knives apparatus 320 positions thetape 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 asingle 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 (38)
- 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), anda 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),
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), anda 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),andwinding a reel of paper onto the spool (28; 328),
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.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US66476096A | 1996-06-17 | 1996-06-17 | |
US664760 | 1996-06-17 | ||
PCT/US1997/007615 WO1997048632A1 (en) | 1996-06-17 | 1997-04-29 | Reel web turn-up device |
Publications (2)
Publication Number | Publication Date |
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EP0907600A1 EP0907600A1 (en) | 1999-04-14 |
EP0907600B1 true EP0907600B1 (en) | 2003-03-26 |
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Application Number | Title | Priority Date | Filing Date |
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EP97922679A Expired - Lifetime EP0907600B1 (en) | 1996-06-17 | 1997-04-29 | Reel web turn-up device |
Country Status (5)
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EP (1) | EP0907600B1 (en) |
JP (1) | JP3205935B2 (en) |
CA (1) | CA2258533C (en) |
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WO (1) | WO1997048632A1 (en) |
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- 1997-04-29 JP JP50294598A patent/JP3205935B2/en not_active Expired - Fee Related
- 1997-04-29 EP EP97922679A patent/EP0907600B1/en not_active Expired - Lifetime
- 1997-04-29 WO PCT/US1997/007615 patent/WO1997048632A1/en active IP Right Grant
- 1997-04-29 DE DE69720214T patent/DE69720214T2/en not_active Expired - Lifetime
- 1997-04-29 CA CA002258533A patent/CA2258533C/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008000475A1 (en) | 2008-02-29 | 2009-09-03 | Voith Patent Gmbh | Method for winding a moving material web and winding machine for carrying out the method |
WO2009109503A1 (en) | 2008-02-29 | 2009-09-11 | Voith Patent Gmbh | Method for winding a continuous material web and winding machine for carrying out the method |
EP2100838A2 (en) | 2008-03-14 | 2009-09-16 | Voith Patent GmbH | Method for coiling a continuous strip of material and coiling machine for carrying out the method |
DE102008000673A1 (en) | 2008-03-14 | 2009-09-17 | Voith Patent Gmbh | Method for winding a moving material web and winding machine for carrying out the method |
DE102008000671A1 (en) | 2008-03-14 | 2009-09-17 | Voith Patent Gmbh | Method for winding running material web, particularly sheet of fibrous material, involves winding material web at multiple winding cores to winding roll |
DE102016209642A1 (en) | 2016-06-02 | 2017-12-07 | Voith Patent Gmbh | coiling |
WO2020212002A1 (en) | 2019-04-18 | 2020-10-22 | Voith Patent Gmbh | Winding method |
DE102019110233A1 (en) * | 2019-04-18 | 2020-10-22 | Voith Patent Gmbh | Winding process |
Also Published As
Publication number | Publication date |
---|---|
WO1997048632A1 (en) | 1997-12-24 |
DE69720214T2 (en) | 2003-12-11 |
JPH11513007A (en) | 1999-11-09 |
JP3205935B2 (en) | 2001-09-04 |
CA2258533C (en) | 2005-04-12 |
CA2258533A1 (en) | 1997-12-24 |
DE69720214D1 (en) | 2003-04-30 |
EP0907600A1 (en) | 1999-04-14 |
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