EP0680910A1 - Procédé et dispositif de raccordement de bandes de matériau - Google Patents

Procédé et dispositif de raccordement de bandes de matériau Download PDF

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Publication number
EP0680910A1
EP0680910A1 EP94106936A EP94106936A EP0680910A1 EP 0680910 A1 EP0680910 A1 EP 0680910A1 EP 94106936 A EP94106936 A EP 94106936A EP 94106936 A EP94106936 A EP 94106936A EP 0680910 A1 EP0680910 A1 EP 0680910A1
Authority
EP
European Patent Office
Prior art keywords
material web
web
main roller
roller
splicing
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.)
Withdrawn
Application number
EP94106936A
Other languages
German (de)
English (en)
Inventor
Dezsö Dipl.-Ing. Szöcs
Matyas Dipl.-Ing. Dr. Talas
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.)
Heinrich Vorwald & Co KG GmbH
Original Assignee
Heinrich Vorwald & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heinrich Vorwald & Co KG GmbH filed Critical Heinrich Vorwald & Co KG GmbH
Priority to EP94106936A priority Critical patent/EP0680910A1/fr
Publication of EP0680910A1 publication Critical patent/EP0680910A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1868—The roll support being of the turret 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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
    • B65H19/1836—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being accelerated or running prior to splicing contact

Definitions

  • the invention relates to a method for splicing webs of paper, cardboard, plastic, metal, composite materials or the like. according to the preamble of claim 1 and to a machine for splicing such material webs according to the preamble of claim 9.
  • the unwinding of the material web fed to the processing station is interrupted for the splicing process, when this material web is at a standstill the leading area of a connecting web is brought up to the outlet area of the material web which has stopped, the cutting and the connecting process is carried out and after removing the remnants of the web, the web advance was resumed.
  • all processing operations for example printing on the material web, must also be interrupted.
  • the invention has for its object to provide a method and a machine for splicing material webs, which make it possible without memory to connect this butt-to-butt joint with a subsequent material web at an undiminished forward speed of the material web passing through the processing stations.
  • the method and machine according to the invention provide a memory-free, flying butt-to-butt connection of material web ends, which can be carried out precisely and reliably even at high forward speeds of material webs.
  • the machine illustrated in Fig. 1 for splicing webs of paper, cardboard, plastic, metal, composite materials or the like. has a roll-off device 1 for a material roll 2 of a first material web 3, a take-off device 4 arranged downstream of it for the first material web 3, a roll-off device 5 for a material roll 6 of a second material web 7 to be spliced onto the first material web 3, and a take-off device 8 for the second Material web 7, a winding device 9 for the leading end of the second material web 7 and a splicing station arranged after the unwinding devices 1, 5 and designated as a whole as 10.
  • the roll-off devices 1, 5 in the embodiment of the machine according to FIG. 1 are part of a turning unwinder which is generally known and does not require any further explanation here.
  • the arrangement of the unrolling devices 1, 5 is such that the second material web 7 always runs above the first material web 3, which runs over a guide roller 11 just before the splicing station 10.
  • the trigger device 4 comprises in particular a deflection roller 12, drive rollers 13, 14, 15 driven by drive motors (not shown) and an incremental rotary encoder 16, the output signals of which are fed to a central data processing and control device (not shown).
  • the output signals from tachometer generators 17, 18, which are assigned to the rolling devices 1, 5, are also fed to the central data processing and control device.
  • the trigger device 8 comprises drive rollers 19, 20 driven by drive motors (not shown) and tacho generators 21, 22 assigned to them, the output signals of which in turn are fed to the central data processing and control device.
  • the take-off device 8 can be moved as a whole along a guide 24 along a guide 24 from an area above the unwinding device 5 in the direction of arrow 25 into an area located behind the splicing station 10 near the winding device 9, around the end of the second material web 7 for fixing to be presented on a take-up reel 26 of the take-up device 9 by hand.
  • the splicing station 10 comprises in particular an upper cylindrical main roller 30 and a lower cylindrical main roller 32. Both main rollers 30, 32 are arranged vertically one above the other and have shafts 37, 38 with axes of rotation 31, 33 aligned parallel to one another and to the axes of rotation of the unwinding devices 1.5 . Tachogenerators 34, 35 are assigned to the shafts 37, 38 and give their output values to the central data processing and control device.
  • the lower main roller 32 is vertically displaceable in a machine frame 36 from its lower end position shown in FIGS. 1 to 3 and 5 into an upper separation position 32a.
  • the upper main roller 30 is also downward from its upper end position illustrated in FIGS. 1 to 3 and 5 into a separation starting position 30a displaceable, from which it can be briefly shifted slightly downwards into a separating position 30b.
  • the main rollers 30, 32 are position-synchronous and can be driven by drive motors 40, 42 (FIG. 4), which can be formed by AC servomotors and via gearwheels 41, 43, to the circumferential speed, which is synchronized during splicing, with the same forward speed of the material webs 3.7 Act waves 37.38 of the main rollers 30.32.
  • a tachometer generator 44 or 45 and a resolver 46 or 47 are assigned to the shafts of the drive motors 40, 42.
  • the output signals of the tachometer generators 44, 45 and the resolver 46, 47 are again fed to the central data processing and control device, the resolvers delivering two voltage values for the actual speed value on the one hand and the actual position value on the other hand.
  • the upper and the lower main roller 30, 32 are each supported by a yoke 49, 50, on which the gear transmissions 41, 43, the drive motors 40, 42 and the assemblies assigned to them are also supported.
  • the yoke 49 for the upper main roller 30 is supported on a further yoke 52 which can be moved up and down by means of long-stroke cylinders, not shown, in order to move the upper main roller between its upper end position and the separation starting position 30a.
  • the yoke 49 is limited vertically displaceable relative to the yoke 52 by means of short-stroke cylinders 54, 55 and, during its movement, shifts the upper main roller 30 from its starting position 30a into a lower separating position 30b, the stroke path being in the order of magnitude of, for example, approximately 3 mm .
  • the upper main roller 30 forms a cutting roller, the cutting knife 51 or the like on its circumference.
  • Separating member carries, which is preferably arranged obliquely on the circumference of the main roller 30 (Fig. 4).
  • the lower main roller 32 is in turn provided with a counter groove 53 on the circumference, which is adapted to the inclined position of the cutting knife 51 Has inclination (Fig. 4) and into which the cutting knife 51 is immersed for carrying out the separation process.
  • the lower main roller 32 has means for fixing web ends on the roller circumference, which are preferably formed by suction openings 58, which are provided via channels provided in the interior of the lower main roller 30, via bushings 59 in the area of a rotary bearing and a connecting line 60 with a vacuum generator 61, eg a vacuum boiler, can be temporarily connected.
  • the yoke 52 for the lower main roller 32 can be displaced vertically from a lower end position into an upper separating position 32a by means of long-stroke cylinders 62, 63, in which the lower main roller 32, when the upper main roller 30 is lowered in the separating position 30b, cuts it together with it of the material webs 3.7.
  • the lower main roller 32 is assigned an application device 65 for applying an adhesive strip 66 (FIG. 10), which comprises an feed roller 67 which can be engaged against the lower main roller 32.
  • the feed roller 67 is mounted in a first yoke 68 and is temporarily driven in synchronism with the lower main roller 32 by means of a rotary drive 69 via a gear mechanism 70.
  • the shaft 71 of the feed roller 67 is provided with suction openings 72 in the periphery of the feed roller 67, and these suction openings 72 can be temporarily supplied with vacuum by channels in the interior of the feed roller 67 and a bushing 73 in a manner similar to the lower main roller 32 by a vacuum generator.
  • the drive motor 69 can in turn be designed as an AC servo motor and can be provided with a tachometer generator 75 and a resolver 76, while an incremental rotary encoder 77 is assigned to the shaft 71 of the feed roller 67. Parts 75, 76, 77 are also connected with their outputs to the central data processing and control unit.
  • the first yoke 68 is supported on a second yoke 80 and, relative to this, can be displaced horizontally in the direction of the lower main roller 32 and in opposite directions by means of short-stroke cylinders 81.
  • the yoke 80 in turn, can be displaced horizontally in the direction of the lower main roller 72 and in the opposite direction relative to a machine frame part 82 by means of long-stroke cylinders 83, so that the feed roller 67 as a whole is driven by the drives 83 from a basic position into one of the lower main rollers (in the separating position) 32 closely adjacent starting position 67a is displaceable, from which the feed roller 67 can then be briefly engaged against the lower main roller 32 into a positioning position 67b by means of the drives 81.
  • the feed roller 67 then returns to its basic position by reversing the drives 81, 83.
  • the application device 65 comprises a guide roller 84 mounted on the yoke 80, which can be displaced from its basic position when the feed roller 67 is transferred into its initial position 67a into an operating position 84a in which it is moved closer to the lower main roller 32 in its separation position 32a.
  • the upper main roller 30 is supported on its yoke 52, upon its transition into the separating starting position 30a it also moves guide rollers 85, 86, 87, which, like the guide roller 84 of the feeder device 65, can be driven at a peripheral speed by drives (not shown) , which corresponds to the forward speed of the material webs 3 and 7, respectively, which they overflow.
  • the guide rollers 85, 86, 87, against which the lower main roller 32 is moved into the separation position 32a during their movement, together with the guide roller 84 have the task of applying the material webs 3, 7 in a circumferential area to the lower main roller in the separation position 32a , in which both the cutting process by the upper main roller 30 in its separation position 30b and the application process for the adhesive strip 66 are carried out by the feed roller in the application position 67b.
  • the guide rollers 84 and 86 are inoperative, while the guide rollers 85 and 87 ensure that a material web 7 guided from the roll 6 to the take-up roll 26 can pass underneath from the upper main roll 30.
  • the material web 3 runs from its material roll 2, overflows the guide rollers 11, 12 and the rollers 13, 14, 15 of the take-off device 4.
  • the material web 3, which runs at a constant, predetermined speed, passes through processing stations of a suitable type located behind the take-off device 4 , e.g. Printing units, cutting units, etc.
  • the material web is then wound up, for example, on a take-up roll (not shown), divided into sections or divided into longitudinal strips.
  • the preparation of the splicing process begins.
  • the outer end of the material web 7 is pulled off the material roll 6 and transferred to the take-off device 8.
  • the end of the web is brought into a position adjacent to the winding device 9 with the help of the pull-off device 8, so that an operator can take over the web end and connect it to the winding roller 26 without the area between the main rollers 30, 32 to take action.
  • the trigger device then returns to the starting position illustrated in FIGS. 1 to 3.
  • the removal of the material web 7 and its winding on the take-up roll 26 is started and the material web 7 is accelerated to a forward speed which corresponds to the forward speed of the material web 3.
  • the upper main roller 30 is moved from its upper end position illustrated in FIGS. 1 to 3 into the Starting position 30a is moved down, together with the guide rollers 85, 86 and 87 associated with it.
  • the lower main roller 32 is raised from its lower end position into its separation position 32a. 6 schematically shows the mutual assignment of the parts shortly before the lower main roller enters the separating position 32a.
  • the application device 65 is still in the basic position, from which after the lower main roller 32 has entered the separating position 32a, the application device 65 is transferred to the position illustrated in FIG. 7, in which the feed roller 67 is in its application starting position 67a and the guide roller 84 is in its operating position 84a which is engaged against the lower main roller 30.
  • the actual execution of the splicing process begins with the cutting process.
  • the upper main roller 30 is moved from its separation starting position 30a into the separation position 30b illustrated in FIG. 7 against the lower main roller 32 located in the separation position 30a with the aid of the short-stroke cylinders 54, 55.
  • the upper and lower main rollers 30, 32 rotate in a position-synchronized manner in such a way that the end of the cutting blade 51 which is at the front in the direction of rotation of the upper main roller 30 is immersed in the opposite end of the receiving groove 53 which is at the front in the direction of rotation of the lower main roller 32 . This moment is symbolized by the schematic representation of the parts 51, 53 in FIG. 7.
  • the cutting knife 51 continuously dips with its part located in the lower culmination point of the upper main roller 30 into the part of the receiving groove 53 which is in juxtaposition at the upper culmination point of the lower main roller 32, until finally after further rotation of the two main rollers 30, 32 the separating cut is carried out over the entire web width.
  • This process cuts through both material webs 3.7, which in the Area between the guide rollers 87-84a directly on top of each other and on the lower main roller 32, together and simultaneously.
  • the already cut area of the material webs 3, 7 reaches the working area of the application device 65, and the feed roller 67, which is engaged in the application position 67b (FIG. 8) against the lower main roller 32 in its separation position 32a, places one on it Adhesive strips 66 fixed in the correct position on the web ends offered to them on the lower separating roller 30, selling end to end, which are accordingly progressively glued together over their entire width by the adhesive strip 16.
  • the web ends presented for gluing are a rear end of the material web 3 formed by the cutting process and a front end of the material web 7 formed by the cutting process, so that after the gluing by the adhesive strip 66 the material web 7 is now connected to the material web 3 without joints.
  • the upper main roller 30 immediately returns from the separation position 30b to the separation starting position 30a (FIG. 9), and after the connection process has ended, the feed roller 67 also returns from its application position 67b via the application starting position 67a (FIG. 9) Home position (Fig. 6) back.
  • the end of the material web 7, which is also formed by the cutting process, is moved out of the cutting area before reaching the working area of the application device 65 and wound onto the winding roller 26.
  • the front end of the part of the material web 3 running towards the lower main roller 32 formed during the cutting process is fixed by the fixing means 58 on the lower main roller 32 and is wound onto the lower main roller 32.
  • the upper and lower main rollers 30, 32 return to their upper and lower end positions after the connection process is complete and become Standstill braked. This also happens with the take-up roll 26 and the guide rolls 84 and 86, which have no function to perform during the normal running of the material web 7 now running from the material roll 6.
  • the take-up roll 26 is prepared for a next splicing process by removing the piece of material web 7 wound on it.
  • a new adhesive strip 66 is also placed on the feed roller 67 and fixed by the fixing means 72, which fulfill their fixing function until the adhesive strip 66 is transferred to the material web ends to be connected.
  • the adhesive strip 66 assumes an inclined position on the feed roller 67 corresponding to the inclined position of the cutting knife 51, which also moves in synchronism with the position of the lower main roller 32 and at a rotational speed which corresponds to that of the lower main roller 32 during the splicing process.
  • the part of the material web 3 wound onto it is removed from the shut down lower main roller 32, after which the practically empty material roll 2 is removed from the unwinding device 1.
  • the unwinding device 5 with the practically full material roll 6 is transferred to the position previously assumed by the unwinding device 1, the unwinding device 1 simultaneously reaching the position previously assumed by the unrolling device 5, in which it can be equipped with a full material web roll. Regardless of whether a turning, cascade or ruler unwinder is used, it is ensured that the second material web to be connected takes a course above the first material web for the splicing process.
  • the separation process can take place according to the inclined position of the cutting knife 51 and the receiving groove 53 over a rotation angle range of the main rollers 30, 32 of 90 °, for example, in which case the application process is also carried out in a rotation angle range of the lower main roller 32 of 90 °.
  • the separation process and the connection process can be carried out separately one after the other, ie the application process for the adhesive strip 66 does not begin until the separation process has ended.
  • there is also the preferred possibility of interleaving the separating and connecting process for example in such a way that after two thirds of the separating process the application process for the adhesive strip 66 already begins. Such a sequence is illustrated in FIG.
  • FIG. 13 symbolizes this process analogously to FIG. 10, in which a nesting between the application processes for the adhesive strip 66 and the adhesive strip 96 is likewise provided.
  • the application device 65 is followed by a further application device 100, which cooperates with an enlarged diameter guide roller 84a of the preceding application device 65 and comprises an feed roller 101, which in Fig. 11 in a starting position 101a and in Fig. 12 is illustrated in the application position 101b.
  • the feed roller 101 corresponds to the feed roller 67 in training and motion drive and in the execution of the fixing means.
  • the material web 3, 7 is guided over a further guide roller 103 after the guide roller 84a rotates.
  • the determination and coordination of the rotational speeds for the rollers and rollers before, during and after the splicing process is carried out by the central data processing and control device which ensures compliance with the predetermined peripheral speeds of the rollers and rollers and the precise alignment of the rollers 30, 32, 67 and 101 ensured by appropriate loading of the drive motors.
  • the central data processing and control device controls the drives for the displacement movements of the rollers and rollers, so that a fully automatic sequence of the splicing process after its preparation, insofar as this is to be carried out by hand, is guaranteed.

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  • Replacement Of Web Rolls (AREA)
EP94106936A 1994-05-04 1994-05-04 Procédé et dispositif de raccordement de bandes de matériau Withdrawn EP0680910A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94106936A EP0680910A1 (fr) 1994-05-04 1994-05-04 Procédé et dispositif de raccordement de bandes de matériau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94106936A EP0680910A1 (fr) 1994-05-04 1994-05-04 Procédé et dispositif de raccordement de bandes de matériau

Publications (1)

Publication Number Publication Date
EP0680910A1 true EP0680910A1 (fr) 1995-11-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94106936A Withdrawn EP0680910A1 (fr) 1994-05-04 1994-05-04 Procédé et dispositif de raccordement de bandes de matériau

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Country Link
EP (1) EP0680910A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0812792A3 (fr) * 1996-05-24 1998-06-17 Fuji Photo Film Co., Ltd. Appareil de raccordement de bandes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008231A1 (de) * 1969-02-26 1970-09-10 Fuji Photo Film Co. Ltd., Kanagawa (Japan) Vorrichtung zum Stoßverbinden von Bahnen
FR2169533A5 (fr) * 1972-01-27 1973-09-07 Hanssen Pierre Et Cie
FR2313296A1 (fr) * 1975-06-04 1976-12-31 Agfa Gevaert Dispositif et procede pour raccorder bout a bout deux bandes
CH601089A5 (en) * 1973-03-07 1978-06-30 Rengo Co Ltd Paper strand splicing
EP0060450A1 (fr) * 1981-03-12 1982-09-22 Windmöller & Hölscher Dispositif pour raccorder l'extrémité arrière de la bande d'un rouleau qui se termine à l'extrémité avant de la bande d'un rouleau de remplacement
EP0521532A1 (fr) * 1986-12-25 1993-01-07 Tokyo Automatic Machinery Works Limited Dispositif pour attacher une bande de remplacement à une bande en mouvement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008231A1 (de) * 1969-02-26 1970-09-10 Fuji Photo Film Co. Ltd., Kanagawa (Japan) Vorrichtung zum Stoßverbinden von Bahnen
FR2169533A5 (fr) * 1972-01-27 1973-09-07 Hanssen Pierre Et Cie
CH601089A5 (en) * 1973-03-07 1978-06-30 Rengo Co Ltd Paper strand splicing
FR2313296A1 (fr) * 1975-06-04 1976-12-31 Agfa Gevaert Dispositif et procede pour raccorder bout a bout deux bandes
EP0060450A1 (fr) * 1981-03-12 1982-09-22 Windmöller & Hölscher Dispositif pour raccorder l'extrémité arrière de la bande d'un rouleau qui se termine à l'extrémité avant de la bande d'un rouleau de remplacement
EP0521532A1 (fr) * 1986-12-25 1993-01-07 Tokyo Automatic Machinery Works Limited Dispositif pour attacher une bande de remplacement à une bande en mouvement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0812792A3 (fr) * 1996-05-24 1998-06-17 Fuji Photo Film Co., Ltd. Appareil de raccordement de bandes
US5881964A (en) * 1996-05-24 1999-03-16 Fuji Photo Film Co., Ltd. Web splicing apparatus having offset splicing and taping

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