EP0620799B1 - Vorrichtung zum Schneiden und Aufbringen eines Verbindungsstreifens für eine Bahnwickelvorrichtung - Google Patents

Vorrichtung zum Schneiden und Aufbringen eines Verbindungsstreifens für eine Bahnwickelvorrichtung Download PDF

Info

Publication number
EP0620799B1
EP0620799B1 EP93904507A EP93904507A EP0620799B1 EP 0620799 B1 EP0620799 B1 EP 0620799B1 EP 93904507 A EP93904507 A EP 93904507A EP 93904507 A EP93904507 A EP 93904507A EP 0620799 B1 EP0620799 B1 EP 0620799B1
Authority
EP
European Patent Office
Prior art keywords
web
tab
knife
adhesive
cutting
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
Application number
EP93904507A
Other languages
English (en)
French (fr)
Other versions
EP0620799A1 (de
Inventor
Harvey D. Ogren
James L. Albrecht
Leonard M. Volin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/823,665 external-priority patent/US5379962A/en
Priority claimed from US07/823,379 external-priority patent/US5632849A/en
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Priority to EP00100364A priority Critical patent/EP0999160B1/de
Priority to EP96108947A priority patent/EP0733571B1/de
Publication of EP0620799A1 publication Critical patent/EP0620799A1/de
Application granted granted Critical
Publication of EP0620799B1 publication Critical patent/EP0620799B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/29—Securing the trailing end of the wound web to the web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/10—Means for treating work or cutting member to facilitate cutting by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • 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
    • 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
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • 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
    • 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
    • B65H2301/4148—Winding slitting
    • 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
    • B65H2301/41894—Cutting knife moving on circular or acuate path, e.g. pivoting around winding roller
    • 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
    • B65H2408/231—Turret winders
    • B65H2408/2312—Turret winders with bedroll, i.e. very big roll used as winding roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/37—Tapes
    • B65H2701/377—Adhesive tape

Definitions

  • the present invention relates to a cutting and tabbing assembly for use with a web winding apparatus.
  • PSA Pressure sensitive adhesive
  • log rolls which may, for example, measure 61 cm wide (24 in) or 122 cm wide (48 in). These log rolls are later cut into many individual rolls (each 2.5 cm wide, for example) for distribution and sale.
  • a web is typically wound onto a core until a predetermined length of web has been wound thereon to form a log roll.
  • the web is then stopped and cut transversely, so that the log roll can be removed.
  • a tab member which could be a piece of paper, may then be applied along the end of the web on the log roll to facilitate grasping of the end of the web.
  • the log roll may then be replaced by a new core, and the leading cut end of the web may be adhered to the core and the web wound therearound to begin a new log roll.
  • Known log roll winders of the type described above have exhibited several deficiencies relating to three distinct systems within the winder.
  • the systems which will be discussed further below, are the cutting system for cutting the web across its entire width, the tabbing system for applying a tab at a cut end of the web across its width, and a winding system for handling the web before, during, and after the cutting and tabbing operations.
  • the web is threaded onto a rotating vacuum drum with the adhesive side of the web facing away from the drum.
  • the web is cut by rotating a knife against the rotating drum while the web is disposed against the surface of the drum.
  • the vacuum force exerted by the drum against the web holds the cut ends of the web in place to prevent wrinkling.
  • the present invention does not directly relate to longitudinal slitting, but rather to transverse cutting, which is periodic rather than continuous. Moreover, the continuous self-cleaning dragging and wiping action of adjacent adhesive present with longitudinal slitting does not exist with transverse cutting. Without it, adhesive softened by heating tends to coat the knife and be pressed through the web onto the drum, which requires unacceptable cleanup.
  • the Dienes Werke catalog referenced above also discloses a very high temperature knife called an "element” which can be heated up to 750°C (1382°F). This high temperature carbonizes the adhesive coating and backing layer of the web.
  • the Dienes Werke catalog discusses using the element to "separate” the material and “fuse” or seal the strands on the edge of woven material to prevent unraveling, as with cutting a typewriter ribbon.
  • the tab is typically a narrow strip of material, such as paper, that is applied to the PSA coated side of the web and extends across the width of the log roll.
  • a pressure sensitive adhesive tape is wound on a log roll and then slit into smaller, individual rolls, it may be desirable to provide a tab at the end of the adhesive tape so that a consumer can grasp the end of the tape.
  • a non-adhesive web it may be desirable to provide an adhesive tab on the end of the web that will first contact the core, to anchor the web to the core prior to winding.
  • tabbing systems typically apply the tabs to a log roll either manually or from a magazine prior to cutting the web. Tab application is sometimes performed with the web stopped and sometimes with the web moving. Regardless, the tab is applied as a separate operation before the web is cut to terminate the log roll. Thus it is very difficult to obtain proper registration between the cut and the location of the tab, which is undesirable. It is therefore desirable to provide a tabbing system for use with a log roll winder wherein a tab may be applied to a cut end of the web while the web is moving, while avoiding the registration problems of the prior art.
  • GB-A-1207 080 discloses a web winding apparatus wherein a web is fed in partial wrapping engagement over a bedroll to a core on one of a plurality of rotatably mounted winding mandrels.
  • the mandrels are carried by a rotatable turret past a pickup position where a free leading edge of the web formed by a transverse severance of the web is tranferred to a core disposed on a successive winding mandrel.
  • the web can be cut on the bedroll by a rotating chopper roll carrying a knife and arranged to cooperate with a web support member carried by the bedroll.
  • Means are also provided for applying an adhesive to the web at the location of the web support member that extends from the bedroll to raise that portion of the web into contact with the adhesive applicator. After application of the adhesive, the bedroll continues to rotate in the direction of the chopper roll which then cuts the web just forward of the adhesive.
  • the finished log roll must be removed from the winding area, and an empty core must be positioned to receive the leading cut end of the web to begin a new log roll.
  • the web speeds are substantial (120 m/min, for example), and the speed required to remove a full roll and replace it with an empty core is quite difficult to obtain.
  • the full roll is often removed before the terminal cut end of the web is completely adhered to the log roll.
  • such a procedure may not allow the log roll winder to guide the terminal cut end of the web, and thus the web may wrinkle or fold over, which is undesirable.
  • EP-A-0 335 028 discloses a machine and method for winding coreless rolls from a web by winding a spiral body in a winding pocket with a trailing edge extending upstream from the pocket and accelerating the spirally wound body and trailing edge downstream away from the pocket while winding the trailing edge onto the body to complete the roll. Accelerating the spirally wound body in this manner also creates a gap between the trailing end of the subject roll and the leading end of the severed web that will form the leading end of the subsequent roll.
  • One roll winder made by Stahlechr Maschinenbau GmbH, attempts to overcome the foregoing problems by winding the web at a single wind-up station.
  • the web, drum, and wind-up roll stop for the web to be cut.
  • the drum and wind-up roll resume turning to wind up the tail of the web, while the incoming web remains stopped.
  • the wind-up roll is unloaded, and an empty core is loaded in its place.
  • the winder begins winding the incoming web on the new core. While having its own utility, this winder does not cut and transfer web on the fly.
  • a cutting and tabbing assembly for use with a web winding system, wherein the cutting and tabbing assembly cuts the web against a rotating drum as the web rotates and applies a tab on the web in registration with a cut end of the web, comprising a rotatable knife and a tab source, said cutting and tabbing assembly characterized by a tab bar mounted adjacent the knife; means for moving the tab source from a first position spaced from the knife and tab bar to a second position adjacent the knife and tab bar to enable the tab bar to receive the tab while the knife and tab bar are in the second position; and means for rotating the knife and tab bar from the second position to a web-cutting position to enable the knife to cut the web while the tab bar applies the tab onto the web in registration with a cut end of the web.
  • the tab source may comprise an ink jet printer that applies ink to the tab bar.
  • the tab source may be a tab paper unwinder on which a roll of tab paper is mounted, wherein the tab bar may comprise means for holding the tab paper, and wherein the means for moving the unwinder from a first position to a second position, enables the knife to cut a tab from the tab paper roll.
  • the cutting and tabbing assembly may be used with an adhesive backed web in which case the knife may comprise means for preventing the adhesive on the web from sticking on the knife and for preventing the adhesive from accumulating on the knife.
  • This sticking and accumulating preventing means may comprise means for heating the knife to temperatures above the temperature at which the adhesive softens and below the temperature at which the adhesive carbonizes, for example to temperatures between 149°C and 232°C (300°F and 450°F).
  • the winding system 10 shown in Figures 1A through 1H, can be used in conjunction with most known tapes. After the web 12 is processed it is to be wound on cores 14.
  • the present winding system 10 permits cutting, tabbing, and winding the web 12 on cores 14, and transferring the web between cores 14 on the fly.
  • Numerous rollers 16 may be provided, only one of which is shown in the illustrated embodiment.
  • the winding system 10 also includes a stationary gapping roller 18 around which the web 12 winds. The roller 18 can serve to spread the web 12 and eliminates wrinkles before the web 12 travels to the rotating drum 24.
  • a tension sensor 20 is mounted on one roller 16 to measure web tension and adjust the speed of the rotating drum 24 to maintain a desired tension in the web.
  • the web 12 then travels to a retractable primary gapping roller or idler roller 22 which is disposed downline of the roller 18.
  • the idler roller 22 is pivotable on a radius centered at the center of the roller 18.
  • the idler roller 22 and the roller 18 have the same diameter, and thus the same circumference.
  • a rotating drum 24 is disposed downline of the idler roller 22 such that the web 12 travels in contact with a portion of the outer surface 26 of the rotating drum 24 after passing the idler roller 22.
  • Surface 26 covered with urethane rubber or other material which supports the web 12 such that a cutting knife will penetrate the web 12 when the knife is pressed against the web 12.
  • the drum surface 26 can be steel if the knife travel is precisely controlled to avoid knife damage.
  • the surface 26 can have a narrow groove that would engage the knife such that the edges of the groove would support the web 12 close to the cut while the cut is made in the open air space between the edges of the groove.
  • the web 12 can have an adhesive side, such as PSA, which faces outwardly when the web 12 is wrapped around the drum 18. This prevents the web 12 from adhering to the drum surface 20 and permits the leading end of web 12 to transfer to the cores 14 by adhesion. Adhesion transfer to the cores 14 with nonadhesive webs can be accomplished by placing adhesive directly on the cores. Alternatively, an adhesive tab can be applied to the leading cut end of the web to secure adhesion to the core.
  • the drum 24 includes a series of holes 48 on its surface 26 which are connected to a source of vacuum 50 through the drum 24. The vacuum provides a mechanism for maintaining the web 12 in contact with the drum 24 during winding.
  • Two wind-up spindles 28, 30 are located adjacent the rotating drum 24 and receive the cores 14 on which the web 12 is wound to form the log rolls.
  • the first wind-up spindle 28 is located relatively upline of the second wind-up spindle 30.
  • Both wind-up spindles 28, 30 are movable between a first position wherein the core supported thereon is in contact with the rotating drum 24, and a second position wherein the core (or log roll) is spaced away from the rotating drum 24.
  • a turret can be used to hold several wind-up stations and to load and unload the wind-up spindles continuously.
  • a cutting knife 32 is located upline of both wind-up spindles 28, 30 and cuts the web 12 as the web 12 rotates against the rotating drum 24.
  • the knife 32 is mounted on a rotating wheel 34.
  • the knife 32 cuts the web 12 against the rotating drum 24 which holds the terminal cut end 36 and the leading cut end 36' of the web 12 to prevent wrinkling. Due to the speed required for transverse cutting of the web against a rotating drum, the knife 32 should cut by pressing or stabbing through the adhesive coated web 12.
  • the cut and transfer can be performed on the fly without stopping the winding process, such that the rolls can be wound on line and at machine speeds on a continuous basis.
  • a particularly advantageous feature of the present web cutting system is that a heater 35 heats the knife 32 to improve cutting.
  • the winder can cut and transfer on the fly without stopping the winding process while overcoming the adhesion, accumulation, and transfer problems previously described.
  • this temperature would be above 149°C (300°F).
  • the present heated cutting system achieves the desired results because one of the major adhesive components melts when the adhesive contacts the knife. This melting changes the rheology of the adhesive much more than simply softening the adhesive with slightly elevated temperature. Furthermore, the adhesive component that melts can become a lubricant next to the knife.
  • This cutting system can be used on continuous or noncontinuous-speed drum winders, with slit or unslit webs, and with or without adhesive-coated webs.
  • the heated knife also can be used to cut any type of web in the air or against a backing.
  • the cutting of nonsticky and nonorganic webs, such as glass cloth, is also improved by the heated knife.
  • a tabbing system is also provided for applying a tab member to one or both of the cut ends 36 and 36' of web 12.
  • a cutting and tabbing assembly is located upline of both wind-up spindles 28, 30. After knife 32 cuts the web 12 against the rotating drum 24 as the web 12 rotates thereover, the assembly cuts a tab 60 from a roll 62 of tab paper 64 and applies the tab on the web 12 in registration with a cut end 36 of the web 12. In the illustrated embodiment, the tab is applied in registration with the terminal cut end 36 of the web, but could be applied to the leading cut end 36' of the web instead of or in addition to terminal cut end 36.
  • the cutting and tabbing assembly 26 includes a wheel 34 which rotates as described above. A knife 32 is mounted on the wheel 34.
  • a tab bar 52 is mounted on the wheel 34 adjacent the knife 32 and has a mechanism which holds the tab paper 60.
  • this mechanism includes a source of vacuum 66 connected to the surface 68 of the tab bar 52 through a series of openings on the surface 68.
  • the roll of tab paper 62 is mounted on an unwinder 70 adjacent the wheel 34. Adhesive webs 12 permit the tab to be adhered to the web without adhesive on the tab, although a nonadhesive web and an adhesive tab may also be used.
  • the unwinder 70 includes the roll 62 of tab paper 64, a backup roller 72 located near the roll 62 of tab paper 64, and a tab paper guide 74 extending from the roll 62 of tab paper 64 to and around a portion of the backup roller 72.
  • the unwinder 70 is translatable from a first position spaced from the knife 32 to a second position adjacent and contacting the knife 32.
  • the unwinder 70 unwinds the proper amount of tab paper 64 to form a tab 60 for application on each log roll 40 during the winding of the web 12 on cores 14.
  • the wheel 34 is located in the tab-receiving position and the unwinder 70 is in its first position spaced from the wheel 34.
  • the tab paper 64 is threaded between the knife 32 and the unwinder 70, as shown in Figure 1A.
  • the unwinder 70 is then moved to the second position in contact with the knife 32 and tab bar 52 while the knife 32 and tab bar 52 remain stationary, as shown in Figure 1B.
  • the knife 32 cuts a tab 60 from the tab paper 64 and the vacuum 66 on the tab bar 52 holds the tab 60 against surface 68 of tab bar 52.
  • the unwinder 70 then returns to its first position.
  • the tab 60 is held on the tab bar 52, and when the desired length of web 12 has been wound on a core 14, the wheel 34 rotates toward the web-cutting position in which the knife 32 can cut the web 12, as shown in Figure 1C. As the wheel 34 rotates, the tab bar 52 transports the tab 28 to the web 12. As shown in Figure 1D, as the wheel 36 reaches the web 12, the tab 60 is applied and the knife 32 contacts and cuts the web 12. The tab bar 52 applies the tab 60 onto the web 12 in registration with a cut end 36, 36' of the web 12. The adhesive on the web 12 enables the tab 60 to adhere to the web 12. The knife 32 and tab bar 52 continue to rotate until reaching the position shown in Figure 1E, which is identical to that shown in Figure 1A, and the sequence can begin again. Because the drum 24 holds the cut ends 36, 36' of the web 12 to prevent wrinkling, the cut and transfer can be performed on the fly without stopping the winding process, such that the log rolls 40 can be wound on line and at machine speeds on a continuous basis.
  • This tabbing system precisely cuts and applies tabs along the full width of the cut end of a log roll from a full width roll of tab paper using a simple configuration that is integrated with the web cutting assembly.
  • This system has the following advantages over precut tabs.
  • This tabbing system can be used with continuous on-line log roll winders as well as with more conventional noncontinuous log roll winders and rewind slitters. Excellent tab placement accuracy is provided, because the same knife cuts both the tab and the web. Separate tab slitting steps are eliminated because the tabs are cut from a full width roll and individual strips of precut tabs need not be handled.
  • thermoplastic ink 80 can be applied to the web 12 to serve as the tab 82.
  • the tab bar 52 has a smooth surface 68.
  • the sequence of operation for this embodiment is similar to that of the paper tab embodiment explained above with respect to Figure 1.
  • an ink jet printer 84 applies the ink 80 to the tab bar 52 by traversing across the tab bar 52.
  • the tab bar 52 applies the ink 80 to the web 12 during the cutting operation.
  • the ink 80 can be applied directly to the web 12 from the printer 84 if the web is stopped.
  • the ink 80 adheres to the adhesive on the web 12, forming a non-tacking surface that acts as a tab 82 on the end of the roll.
  • the wheel 34 continues to its tab-receiving position to begin the cycle again.
  • the ink jet printer 84 can start and stop as it traverses across the web 12, tab printing can be adapted to the duplex cut and wind process in which the web 12 is preslit into predetermined widths and the ink tabs 82 are printed along the total width as the web 12 is cut.
  • the starting and stopping of the printing can be aligned easily with each cut off knife and can be easily changed as the slit web width is changed by programming the printing head of the printer 84, which applies the ink onto the tab bar 52.
  • the tab can be applied to alternate preslit strands while not being applied to the remaining strands.
  • the tab ink or other material could be an adhesive to adhere the last wrap of the web to its roll.
  • a tab bar and tab could be applied to the leading cut end 36' to be wound against the core, and could thus adhere the first wrap of a nonadhesive web to the core.
  • curable coatings can be used as the tab. The coatings could cure using light, chemical reactions, radiation, or heat. Detackifiers such as glass beads or talc also could be used.
  • PSA Pressure sensitive adhesive
  • present winding apparatus includes means for providing a gap, known as a tail gap, between the terminal cut end 36 and the leading cut end 36' of the web.
  • the idler roller 22 is mounted on an arm 42 which pivots around the center of the roller 18. The idler roller 22 pivots from a first position in which winding occurs to a second position that lengthens the distance, known as the pass line, between the idler roller 22 and the rotating drum 24 to create a gap 44 between the cut ends 36 and 36' of the web 12.
  • the idler roller 22 pivots to lengthen the pass line, enabling the web 12 to slide on the surface 26 of the rotating drum 24 and create the gap 44 between the cut ends 36 and 36' of the web 12.
  • the idler roller 22 is pivoted by an index mechanism as is known in the art such as by, a mechanical cam or an electrical drive such that the pivot speed is a function of the line speed.
  • the rotating drum 24 includes a series of holes 48 on its surface which are connected to a source of vacuum 50 through the rotating drum 24, as described previously.
  • the vacuum 50 provides a mechanism for increasing the frictional force between the web 12 and the rotating drum 24, and for maintaining the web 12 in contact with the rotating drum 24 during winding.
  • the vacuum 50 controls the sliding force of the web 12 on the rotating drum 24 and to maintain a constant line tension.
  • the web transfer between cores mounted on the first and second wind-up spindles is provided as follows.
  • the web 12 begins winding around and onto a core 14 that is mounted on the wind-up spindle 28 as shown in Figure 1A.
  • the first wind-up spindle 28 is located against the rotating drum 24, while the second wind-up spindle 30 is spaced from the rotating drum 24.
  • the web 12 will adhere to its core 14 on the wind-up spindle 28.
  • the knife wheel 34 rotates at a surface speed equal to the surface speed of the rotating drum 24.
  • the knife wheel 34 is rotated at a speed matched to the speed of the drum 24 by a knife drive (not shown) which is linked either mechanically or electrically to the drum 24.
  • the knife drive is actuated when a predetermined length of web 12 has been wound.
  • the knife wheel 34 is shifted into and out of engagement with the drum 24 to cut web 12, as described previously.
  • a tab 60 is applied to the cut end of the web by a tab bar 52 which, as shown, can be located on the rotating wheel 34 adjacent the knife 32.
  • the tab bar 52 applies a tab onto the web 12 in registration with a cut end 36 of the web 12.
  • Alternative tab application assemblies can be used.
  • the idler roller 22 is pivoted on its pivoting arm 42 on a radius centered at the center of the roller 18 away from the rotating drum 24 to lengthen the pass line between the idler roller 22 and the drum 24.
  • the idler roller 22 pivots at a speed approximately equal to the web speed. This causes the web 12 to slide on the surface 26 of the drum 24. Because the rotating drum 24 continues to rotate at a constant speed, the pivoting motion of idler roller 22 creates a gap 44 between the cut ends 36 and 36' of the web 12 as shown in Figure 1D.
  • the gap 44 is equal to the pass line length increase. Typically, this increase, and therefore the gap 44 is 15 cm (6 in).
  • the first wind-up spindle 28 is moved away from the drum surface 26 as the terminal cut end 36 passes the first wind-up spindle location. This causes the leading cut end 36' of the web 12 to bypass the first wind-up spindle 28 and continue on to the second wind-up spindle 30.
  • the core 14 mounted on the second wind-up spindle 30 is moved into contact with the rotating drum surface 26 as the first wind-up spindle 28 moves away, and the leading cut end 36' adheres to the core 14 on the second wind-up spindle 30 and begins wrapping around the core 14.
  • the idler roller 22 slowly pivots toward the rotating drum 24 and returns to its original position, as shown in Figure 1F. As the idler roller 22 moves toward this position, the pass line length between the idler roller 22 and rotating drum 24 decreases, while the speed of the drum 24 increases slightly to maintain constant line tension and to take up the extra length of web 12.
  • the drum speed increase depends on the actual return speed and is accomplished in the drive for the drum as modified by the tension sensor signal.
  • the winding is transferred from the second wind-up spindle 30 to the first wind-up spindle 28.
  • the knife wheel 34 rotates to rotate the knife 32 into contact with the web 12 to cut the web 12, as shown in Figure 1G.
  • the idler roller 22 pivots away from the rotating drum 24 to lengthen the pass line between the idler roller 22 and the drum 24 by sliding the web 12 on the surface 26 of the rotating drum 24 and create a gap 44.
  • the core 14 mounted on first wind-up spindle 28 is moved into contact with the rotating drum surface 26 as the terminal cut end 36 passes the first wind-up spindle location to cause the leading cut end 36' of the web 12 to wind on the first wind-up spindle 28.
  • the second wind-up spindle 30 remains in contact with the rotating drum 24 until the terminal cut end 36 of the web 12 is completely wound around the log roll 40. Then the second wind-up spindle 30 moves away from the rotating drum 24.
  • the idler roller 22 slowly returns to its position of short pass line shown in Figure 1A, and the cycle begins anew.
  • This winding system 10 increases the time available to perform the transfer between the two wind-up spindles 28, 30 with a greatly simplified design.
  • the cut ends 36 and 36' of the web 36 are pulled away from the knife 32 after the web 12 is cut to prevent the cut ends 36 and 36' from sticking to each other or to the knife 32.
  • the gap 44 prevents the web 12 from contacting the core 14 prematurely, and obviates the need to strip the web 12 off of the core 14 during any part of the cut and transfer cycle as with known drum winding equipment.
  • the cut and transfer is made on the fly at full line speed with the upstream web speed, and the rotational inertia through the roller 18 and idler roller 22 thus remains constant. This eliminates speed and inertia-related upsets from the upstream equipment.
  • This system can be used on continuous or noncontinuous-speed drum winders, with slit or unslit webs, and with or without adhesive-coated webs.
  • This system also can be used where turrets or other mechanisms move the wind-up spindles into wind-up position, as where the incoming wind-up spindle is moved into contact with the drum while the gap is at that spindle location.
  • the tail gap simplifies the transfer operation to a sufficient degree to obviate the need for turret mechanisms.
  • this winding system is simpler, less expensive, more versatile, and more reliable than known winding machines.
  • One winding system which can use this arrangement winds webs having widths of 63.5 cm (25 in) around paper or plastic cores that are 73.67 cm (29 in) long and have 7.62 cm (3 in) inner diameters.
  • the core wall thickness can range from 0.25 to 1.02 cm (0.10 to 0.40 in), and rolls of up to 43.2 cm (17 in) in diameter can be formed with the actual size being operator selectable.
  • As there are no thickness or material limitations on the web, glass and cotton cloth, nonwoven films, composites, and webs with high strength backings with thick adhesive can be used.
  • Web winding speeds of up to 120 m/min (400 ft/min) have been attained.
  • the system can cycle by removing a full log on a core and loading a new core in 8 seconds and can wind with center winding or surface winding with center assist.
  • Center winding and center assisted winding refer to the rotational movement of the wind-up spindles being independently provided by those spindles, as opposed to by contact of the log roll with the drum 24.
  • This winding system 10 provides a gap without causing web tension upsets from changes in roll inertia due to starting and stopping the line. Because the rotational inertia of the rotating drum 24 remains constant throughout the gap generation, there is no inertial change to impart web tension upsets to the web 12. This is accomplished simply by the geometry of the system 10. Roll inertia problems can be overcome by other systems. For example, a precision drive could be used on each roller affected by rotational speed changes to power the roller at the precise speed profile required to match the web speed at that roller and prevent roll inertia from upsetting web tension. Also, rollers could be replaced by slider or floatation bars on which the web freely slides to avoid upset web tension.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (6)

  1. Schneid- und Aufbringvorrichtung zur Verwendung bei einer Bahnwickelvorrichtung (10), wobei die Schneid- und Aufbringvorrichtung die Bahn (12) entgegen einer sich drehenden Trommel (24) durchschneidet, während sich die Bahn (12) dreht, und einen Verbindungsstreifen (60) entlang einer Schnittkante (36) der Bahn auf die Bahn (12) aufbringt, umfassend ein drehbares Messer (32) und eine Streifenquelle (70), wobei die Schneid- und Aufbringvorrichtung gekennzeichnet ist durch eine Streifenstange (52), die im Bereich des Messers (32) angeordnet ist; eine Einrichtung, die die Streifenquelle (70) von einer ersten, von dem Messer (32) und der Streifenstange (52) beabstandeten Position zu einer zweiten Position im Bereich des Messers (32) und der Streifenstange (52) bewegt, damit die Streifenstange (52) den Verbindungsstreifen (60) aufnehmen kann, während sich das Messer (32) und die Streifenstange (52) in der zweiten Position befinden; und eine Einrichtung, die das Messer (32) und die Streifenstange (52) von der zweiten Position in eine Position zum Schneiden der Bahn dreht, damit das Messer (32) die Bahn (12) durchschneiden kann, während die Streifenstange (52) den Verbindungsstreifen (60) entlang der Schnittkante (36) der Bahn auf die Bahn aufbringt.
  2. Schneid- und Aufbringvorrichtung nach Anspruch 1, bei der die Streifenquelle (70) einen Tintenstrahldrucker (84) umfaßt, der Tinte auf die Streifenstange aufbringt.
  3. Schneid- und Aufbringvorrichtung nach Anspruch 1, bei der die Streifenquelle (70) eine Vorrichtung zum Abwickeln von Streifenpapier darstellt, auf der eine Rolle (62) von Streifenpapier (64) gelagert ist, und wobei die Einrichtung zum Bewegen der Abwickelvorrichtung von einer ersten Position zu einer zweiten Position das Messer (32) betätigt, um einen Streifen (60) von der Streifenpapierrolle (62) abzuschneiden.
  4. Schneid- und Aufbringvorrichtung nach Anspruch 1 zur Verwendung bei einer auf der Rückseite klebstoffbeschichteten Bahn (12), wobei das Messer (32) eine Einrichtung (35) umfaßt, die verhindert, daß der Kleber auf der Bahn (12) an dem Messer festklebt, und die verhindert, daß der Kleber sich auf dem Messer ansammelt.
  5. Schneid- und Aufbringvorrichtung nach Anspruch 4, bei der die Einrichtung zum Verhindern des Festklebens und Ansammelns eine Einrichtung (35) umfaßt, die das Messer (32) auf Temperaturen erhitzt oberhalb der Temperatur, bei der der Kleber weich wird, und unterhalb der Temperatur, bei der der Kleber verkohlt.
  6. Schneid- und Aufbringvorrichtung nach Anspruch 5, bei der die Heizeinrichtung (35) das Messer (32) auf Temperaturen zwischen 149°C und 232°C (300°F und 450°F) erhitzen kann.
EP93904507A 1992-01-21 1993-01-20 Vorrichtung zum Schneiden und Aufbringen eines Verbindungsstreifens für eine Bahnwickelvorrichtung Expired - Lifetime EP0620799B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00100364A EP0999160B1 (de) 1992-01-21 1993-01-20 Bahnwickelsystem
EP96108947A EP0733571B1 (de) 1992-01-21 1993-01-20 Bahnwickelvorrichtung

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US82396192A 1992-01-21 1992-01-21
US823379 1992-01-21
US07/823,665 US5379962A (en) 1992-01-21 1992-01-21 Heated web knife
US823961 1992-01-21
US07/823,379 US5632849A (en) 1992-01-21 1992-01-21 Tab applicator for log roll winders
US823665 1992-01-21
PCT/US1993/000368 WO1993014013A2 (en) 1992-01-21 1993-01-20 Web winding apparatus

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP96108947A Division EP0733571B1 (de) 1992-01-21 1993-01-20 Bahnwickelvorrichtung
EP96108947.1 Division-Into 1993-01-20

Publications (2)

Publication Number Publication Date
EP0620799A1 EP0620799A1 (de) 1994-10-26
EP0620799B1 true EP0620799B1 (de) 1996-12-18

Family

ID=27420155

Family Applications (3)

Application Number Title Priority Date Filing Date
EP00100364A Expired - Lifetime EP0999160B1 (de) 1992-01-21 1993-01-20 Bahnwickelsystem
EP96108947A Expired - Lifetime EP0733571B1 (de) 1992-01-21 1993-01-20 Bahnwickelvorrichtung
EP93904507A Expired - Lifetime EP0620799B1 (de) 1992-01-21 1993-01-20 Vorrichtung zum Schneiden und Aufbringen eines Verbindungsstreifens für eine Bahnwickelvorrichtung

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP00100364A Expired - Lifetime EP0999160B1 (de) 1992-01-21 1993-01-20 Bahnwickelsystem
EP96108947A Expired - Lifetime EP0733571B1 (de) 1992-01-21 1993-01-20 Bahnwickelvorrichtung

Country Status (9)

Country Link
EP (3) EP0999160B1 (de)
JP (1) JP3315407B2 (de)
AU (2) AU673156B2 (de)
CA (1) CA2127285C (de)
CZ (1) CZ175494A3 (de)
DE (3) DE69329470T2 (de)
HK (1) HK1006962A1 (de)
SK (1) SK88894A3 (de)
WO (1) WO1993014013A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995015901A1 (en) * 1993-12-08 1995-06-15 Beloit Technologies, Inc. Method and apparatus for effecting a set change in a paper winder
US6632311B1 (en) * 1998-06-23 2003-10-14 3M Innovative Properties Company Tape roll tab application method and article
JP2000327187A (ja) * 1999-05-20 2000-11-28 Hagihara Industries Inc 細幅ウエブ巻取り装置
CN103930359B (zh) * 2011-11-01 2016-08-17 理研科技株式会社 卷尾处理装置以及方法及树脂制薄膜卷筒
EP4005957A1 (de) * 2020-11-25 2022-06-01 Allstein GmbH Verfahren zum schneiden einer laufenden bahn und schneideeinheit dafür

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE546676A (de) * 1955-04-04
GB1167767A (en) * 1966-03-08 1969-10-22 Scott Paper Co Method and Apparatus for Winding Webs
GB1137221A (en) * 1966-04-12 1968-12-18 Munksjoe Aktie Bolag A device for fixing the terminating end of paper rolls
US3369766A (en) * 1966-05-17 1968-02-20 Scott Paper Co Web winding
US3552670A (en) * 1968-06-12 1971-01-05 Scott Paper Co Web winding apparatus
FR2019873A1 (en) * 1968-10-04 1970-07-10 Castello Sas Automatic winding mechanism for extruded - plastic material
IT1051920B (it) * 1975-12-23 1981-05-20 Kores Spa Metodo per il bloccaggio sulle bobine per dattilografia nel riempimento industriale del lembo finale di nastro
DE2716703C3 (de) * 1977-04-15 1980-10-16 Dienes Werke Fuer Maschinenteile Gmbh & Co Kg, 5063 Overath Quetschmesserhalter mit Heizvorrichtung
DE2923559C2 (de) * 1979-06-11 1985-05-09 Dienes Werke für Maschinenteile GmbH & Co KG, 5063 Overath Heizbare Messeranordnung in einer Rollenschneidmaschine
FR2499958B1 (fr) * 1981-02-19 1985-06-14 Monomatic Sa Perfectionnements aux machines a enrouler des bandes de matiere en bobines
IT1167967B (it) * 1981-08-26 1987-05-20 Fabio Perini Ribobinatrice ad alta velocita' per nastri di carta in specie con perforazioni trasversali
US4712459A (en) * 1986-05-01 1987-12-15 Clamco Corporation Apparatus for severing wrapping film
US4807825A (en) * 1988-03-29 1989-02-28 Elsner Engineering Works, Inc. Roll winding machine

Also Published As

Publication number Publication date
CA2127285A1 (en) 1993-07-22
EP0999160A3 (de) 2000-05-24
JP3315407B2 (ja) 2002-08-19
CA2127285C (en) 2001-09-11
DE69329470D1 (de) 2000-10-26
AU673156B2 (en) 1996-10-31
AU681833B2 (en) 1997-09-04
DE69306752T2 (de) 1997-06-05
EP0999160B1 (de) 2002-12-11
HK1006962A1 (en) 1999-03-26
EP0733571A2 (de) 1996-09-25
WO1993014013A3 (en) 1994-01-06
AU3583893A (en) 1993-08-03
EP0620799A1 (de) 1994-10-26
EP0999160A2 (de) 2000-05-10
DE69329470T2 (de) 2001-04-19
DE69332572D1 (de) 2003-01-23
EP0733571A3 (de) 1996-12-27
CZ175494A3 (en) 1995-01-18
EP0733571B1 (de) 2000-09-20
JPH07502958A (ja) 1995-03-30
WO1993014013A2 (en) 1993-07-22
SK88894A3 (en) 1994-11-09
DE69306752D1 (de) 1997-01-30
AU6803096A (en) 1997-01-09
DE69332572T2 (de) 2003-07-31

Similar Documents

Publication Publication Date Title
US6617007B1 (en) Tape roll liner/tab, application apparatus and method
US4529141A (en) Method and apparatus for rewinding, severing and transferring web-like material
JP4452623B2 (ja) ウエブ材料のログの製造方法と前記方法を実行する巻き戻し機
US20040094263A1 (en) Web material advance system for web material applicator
US5322230A (en) Method and apparatus for preparing a replacement paper roll for flying roll change, particularly to supply paper to a rotary printing press
US5379962A (en) Heated web knife
EP0291767B1 (de) Längsschneid- und Aufwickelmaschine
US5346150A (en) Tail gap winder
EP1337383B1 (de) Vorschubsystem für bahnförmiges material und vorrichtung zum auftragen von bahnförmigem material
EP1513755B1 (de) Vorrichtung zum formen einer rolle aus schmutzentfernungsband und verfahren zum formen von rollen aus schmutzentfernungsband
US6405969B1 (en) Coreless adhesive tape winding mandrel and method
EP1173377B1 (de) Kontinuierlich arbeitender einzelstationen-rollenwickler
US4720320A (en) Apparatus for splicing a trailing end of a web from a depleted coil to the leading end of a fresh coil
EP0620799B1 (de) Vorrichtung zum Schneiden und Aufbringen eines Verbindungsstreifens für eine Bahnwickelvorrichtung
EP0830304B1 (de) Wickeldorn und verfahren zum kernlosen wickeln von klebeband
WO2009126407A1 (en) Tail free transfer winder
AU704476B2 (en) Cutting of adhesive-backed material
US4024782A (en) Apparatus for cutting the trailing end of an expiring web
US5632849A (en) Tab applicator for log roll winders
CA2221334C (en) Tape roll liner/tab, application apparatus and method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19940816

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17Q First examination report despatched

Effective date: 19941206

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

DX Miscellaneous (deleted)
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19961218

REF Corresponds to:

Ref document number: 69306752

Country of ref document: DE

Date of ref document: 19970130

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060113

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060117

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060131

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060228

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070801

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070120

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070120