EP1162164A1 - Vorrichtung zum automatischen Spleissen von Rollen auf abgewickelten Bahnen - Google Patents

Vorrichtung zum automatischen Spleissen von Rollen auf abgewickelten Bahnen Download PDF

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Publication number
EP1162164A1
EP1162164A1 EP01830353A EP01830353A EP1162164A1 EP 1162164 A1 EP1162164 A1 EP 1162164A1 EP 01830353 A EP01830353 A EP 01830353A EP 01830353 A EP01830353 A EP 01830353A EP 1162164 A1 EP1162164 A1 EP 1162164A1
Authority
EP
European Patent Office
Prior art keywords
strip
roll
leading end
conveyor
station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01830353A
Other languages
English (en)
French (fr)
Other versions
EP1162164B1 (de
Inventor
Alessandro Minarelli
Lorenzo Cocchi
Luca Minelli
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.)
GD SpA
Original Assignee
GD SpA
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 GD SpA filed Critical GD SpA
Publication of EP1162164A1 publication Critical patent/EP1162164A1/de
Application granted granted Critical
Publication of EP1162164B1 publication Critical patent/EP1162164B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • B65H19/105—Opening of web rolls; Removing damaged outer layers; Detecting the leading end of a closed 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
    • 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
    • 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
    • B65H2301/46—Splicing
    • B65H2301/4602—Preparing splicing process
    • B65H2301/46024—Preparing splicing process by collecting a loop of material of the fresh web downstream of the splicing station
    • 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
    • B65H2301/46—Splicing
    • B65H2301/4604—Opening web rolls, remove outer layers
    • B65H2301/46042—Opening web rolls, remove outer layers by tearing, bursting etc. preferably only outer (protective) layer
    • 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
    • B65H2301/46—Splicing
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4611—Processing webs in splicing process before splicing
    • B65H2301/46115—Processing webs in splicing process before splicing by bringing leading edge to splicing station, e.g. by chain or belt
    • 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
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—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
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/4641—Splicing effecting splice by pivoting element
    • 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
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers
    • 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
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers
    • B65H2301/464145—Splicing effecting splice by nipping rollers at least one of the rollers having additional feature, eg. knife or at least partly non-cylindrical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum

Definitions

  • the present invention relates to a device for the automatic splicing of strips decoiled from rolls.
  • the prior art embraces machines comprising a set of devices arranged in succession and designed to perform the operations of replacing the roll, then of preparing the leading end of the strip decoiled from the new roll, and ultimately of splicing the prepared end with the trailing end of the strip of the depleting roll.
  • Reasons of construction dictate that such devices are disposed normally in sequence and thus occupy considerable space, with the result that the route followed by the strip is long and elaborate.
  • the object of the present invention is to provide a device for splicing two strips automatically such as will be effective, economical and of compact dimensions.
  • a device for the automatic splicing of strips decoiled from rolls comprising first means by which to guide a leading end of a new strip decoiled from a first roll, characterized in that the first guide means are capable of movement at least between a first position in which the new strip is directed toward a station where the leading end is cut and prepared, and a second position in which the new strip is directed toward a station where the leading end is spliced with a trailing end portion of a depleting strip decoiled from a second roll.
  • 1a denotes a portion of a packaging machine, in its entirety
  • 1 denotes a device, in its entirety, by which strips decoiled from respective rolls are spliced automatically.
  • the device 1 comprises an arm 2 mounted rotatably to a central pivot 3 with a horizontally disposed axis 4, of which the two opposite ends 2a and 2b carry respective first and second rolls 5 and 6 of a strip material 7 and 8 mounted to corresponding pivots 9 and 10 lying with axes 9a and 10a parallel to the axis 4 of the central pivot 3.
  • the arm 2 is rotatable about the central axis 4 through the agency of conventional drive means denoted 11, whilst the rolls 5 and 6 are set in rotation about their respective axes 9a and 10a by respective drive means denoted 12 and 13, likewise conventional in embodiment, incorporated into the arm 2 and connected mechanically to the relative pivots 9 and 10.
  • the drive means 11, 12 and 13 are interlocked to a master control unit 14, and with reference to figures 1 and 9 and figures 3 to 7, in particular, the drive means denoted 12 are piloted in such a way that the first roll 5 can be rotated either in a clockwise direction S1 (figure 1) or in the opposite direction S2 (figure 4).
  • the first roll 5 is stationed in the lower position, and as viewed in figure 1, more exactly, in a standby position, whereas the second roll 6 is stationed in the upper position or position of use. Accordingly, the strip 7 of the first roll 5 is referred to in the following specification as the new strip and the strip 8 decoiling from the second roll 6 as the depleting strip.
  • the new strip 7 of the first roll 5 appears with one end 15 secured by a seal 16 against an outer surface of revolution 17 of the selfsame roll 5, in such a way that the coils of the strip 7 will not unreel or loosen when the roll 5 is being handled or in transit.
  • a metering element 18 positioned near the first roll 5 comprises two wheels 19 fashioned from a material having a high coefficient of friction, mounted rotatably to a pivot 20 carried by one end of an arm 21 hinged at the other end to a pivot 22 of which the axis 23 lies transverse to the axis 4 of the central pivot 3.
  • the arm 21 is caused by an actuator 24 to rotate about the axis 23 between a first operating position, illustrated in figure 1 by phantom lines and in figures 3 to 6 by solid lines, in which the wheels 19 are in contact with the surface of revolution 17 of the first roll 5, and a second inactive position, illustrated in figures 1 and 7 by solid lines, in which the two wheels 19 are distanced from the first roll 5.
  • the metering element 18 likewise is interlocked to the master control unit 14 and comprises an electrical, electromagnetic or electronic component of conventional type (not illustrated) operating in conjunction with the wheels 19 in such a way as to count the revolutions completed by the wheels 19 when brought by the arm 21 into contact with the surface of revolution 17 of the roll 5 and set thus in contrarotation by the selfsame roll 5, as will be explained shortly.
  • the device comprises a station 25 located beyond the point of contact between the wheels 19 and the roll 5, at which the roll 5 is broken open and the leading end 15 of the strip 7 taken up.
  • the break-open station 25 comprises a flexible metal blade 26 of which a curved end portion 26a directed toward the first roll 5 extends substantially parallel to the surface of revolution 17 of the roll 5 and is furnished with a cutting edge 27 of Vee profile oriented oppositely to the decoiling direction S1 of the roll 5.
  • the flexible blade 26 is carried by a frame 28 mounted hingedly to a pivot 29 of which the axis 30 is disposed parallel to the axis 4 of the central pivot 3, and can be made thus to rotate about the axis 30 by a linear actuator 31 of which the rod 32 is connected to the pivot 29 by way of a relative crank arm 33, so that the end portion 26a of the blade 26 can be moved between a first position of separation from the roll 5, distanced from the surface of revolution 17 as illustrated in figure 1 by solid lines, and a second operating position of tangential contact with the selfsame surface 17, illustrated by phantom lines in figure 1 and in figures 3 to 7, in which the cutting edge 27 facing toward the leading end 15 of the strip 7 is able to cut through the seal 16 and thus free the leading end 15, breaking open the roll 5.
  • the end of the blade 26 remote from the cutting edge 27 rests on a table 34, over which the new strip 7 is caused to advance, affording a flat surface 35 occupied by the strip and two lateral restraints 36 one on each side of the strip 7, and mounted hingedly at one end 34a to a pivot 37 of which the axis 38 lies parallel to the axis 30 of the blade pivot 29.
  • the table 34 is capable of movement, generated by an actuator 39, between a first angled position indicated by solid lines, descending from left to right as viewed in the drawing, in which the strip 7 decoiling from the first roll 5 is directed toward a station 40 where the leading end 15 is cut and prepared, and a substantially horizontal second position indicated by phantom lines in which the strip 7 is directed toward a station 41 where the same leading end 15 is spliced with a trailing end portion 42 of the depleting strip 8 decoiled from the second roll 6.
  • the actuator 39 comprises a crank arm 43 connected mechanically to the table 34 by way of a rod 44.
  • the table 34 presents a plurality of blower nozzles 45 (see figure 2) distributed over its surface 35, connected to a source 46 of pressurized gas by way of a system of ducts 47 and combining with the selfsame source to constitute a first pneumatic device 48 such as will generate an air cushion on the table 34 to support and convey the strip 7.
  • the table 34, the flexible blade 26 and the first pneumatic device 48 combine together to establish first means 90 of guiding the strip 7.
  • the conveyor 50 is embodied in such a way as to establish a curved path P substantially of reverse C shape, from which the strip 7 emerges following a trajectory denoted T" having been diverted through approximately 180° in relation to the trajectory T' followed during its movement along the table 34 and on reaching the entry end 50a of the conveyor 50.
  • the bed of the conveyor 50 presents a plurality of blower nozzles 52 connected each by way of the system of ducts 47 to the aforementioned source 46 of pressurized gas and combining with the source to constitute a second pneumatic device 53 by which an air cushion is created on the conveyor 50 (in the same way as on the table 34) to carry the advancing strip 7.
  • the pneumatic device 53 also comprises two blower ports 53a mounted to the lateral restraints 51 near to the entry end 50a.
  • the two blower ports 53a are directed so as to generate a forcing action on the face of the strip 7 opposite to that breasted with the conveyor 50, at the exit end 50b, in a manner that will be described in due course.
  • the C-shaped conveyor 50 and the second pneumatic device 53 combine to constitute second means 91 by which to guide the strip 7.
  • the presence of the strip 7 at the exit end 50b of the conveyor 50 is detected by a photocell 54 connected to the master control unit 14.
  • the splicing station 41 comprises a device 55 for feeding adhesive tabs 56 applied to a backing strip 57, also a first aspirating drum 58 by which the leading end 15 of the new strip 7 is taken up and advanced together with an adhesive tab 56, and a second drum 59 interacting with the first drum 59 in such a way as to connect the tab 56 with the end portion 42 of the depleting strip 8.
  • the backing strip 57 is decoiled from a roll 61 and directed around a curved element 60 forming part of the tab feeder device 55.
  • the curved element 60 presents an exit end 60a directed toward a finger 62 of which the function is to force a sharp diversion in the path followed by the backing strip 57 and thus cause an adhesive tab 56 to peel away from the backing strip 57.
  • the strip 57 from which the tabs have been separated is directed around a guide roller 63 downstream of the finger 62 and recoiled thereafter onto a take-up roll 64.
  • a single tab 56 presents a first adhesive face 65 disposed initially in contact with the backing strip 57, and a second non-adhesive face 66 on the side opposite to the first face 65.
  • the finger 62 is positioned so as to bridge the gap between the exit end 50b of the conveyor 50 and the first drum 58.
  • the first drum 58 is rotatable about an axis 67 disposed parallel to the decoiling axes 9a and 10a of the respective rolls 5 and 6, and driven by a motor 68 connected to the master control unit 14.
  • the first drum 58 exhibits two sectors 58a and 58b of respectively greater and lesser radius.
  • the sector 58a of greater radius is furnished with a plurality of suction holes 69 connected to a source of negative pressure (not illustrated, being of familiar embodiment) of which the function is to retain a tab 56, peeled from the backing strip 57 through the agency of the finger 62, as the drum rotates.
  • the second drum 59 rotates synchronously with the first drum 58 about an axis 70 disposed parallel to the axis 67 of rotation of the first drum 58.
  • the second drum 59 also presents two sectors 59a and 59b respectively of greater and of lesser radius.
  • the splicing station 41 also comprises first and second semi-drums 71 and 72 over which the strip is routed on its passage toward the user machine, and a mechanism 73 by which the trailing end portion 42 of the depleting strip 8 is cut.
  • the semi-drums 71 and 72 are located respectively upstream and downstream of the second drum 59 in relation to the direction followed by the strip, indicated in figure 3 by the arrow denoted A, and exhibit respective surfaces of revolution 71a and 72a of which the straight line generators extend parallel to the decoiling axes 9a and 10a of the rolls 5 and 6.
  • the cutter mechanism 73 is interposed between the first semi-drum 71 engaged by the depleting strip 8 and the second drum 59, and comprises a knife type cutting device 74 of familiar embodiment indicated only schematically.
  • the first roll 5 is loaded onto the corresponding pivot 9 through the agency of conventional means which require no description or illustration.
  • the wheels 19 of the metering element 18, initially occupying the aforementioned inactive position so that the operation of loading the new roll can take place, are brought to bear against the first roll 5 by swinging the arm 21 on the pivot 23 and thus placed in contact with the surface of revolution 17 of the roll as illustrated clearly in figures 3, 4, 5 and 6.
  • the frame 28 is first rotated with the new roll still motionless in such a way as to rest the blade 26 against the surface of revolution 17, whereupon the arm 21 is rotated into the position of contact between the wheels 19 and the roll 5 and the frame 28 then rotated back again to distance the blade 26 from the roll 5.
  • the roll is caused to rotate first in the anticlockwise direction S2, that is, inversely to the direction S1 in which the strip 7 decoils, at a defined and constant angular velocity.
  • the master control unit 14 acquires the number of revolutions made by the wheels 19 during a given number of revolutions of the roll 5 and, with the angular velocity of the roll 5 and the diameter of the wheels 19 both known, proceeds to determine the diameter and maximum circumference of the roll 5. Anticlockwise rotation of the roll 5 is then stopped.
  • the frame 28 supporting the blade 26 is caused by the relative actuator 31 to rotate in such a way as will move the end portion 26a into the operating position of tangential contact with the surface 17 of the roll 5 and bring the Vee cutting edge 27 into tangential engagement with the outermost coil of the roll 5.
  • the flexibility of the blade 26 is such that the cutting edge 27 will remain stably in contact with the outermost coil even though there may be irregularities in the cylindrical geometry or variations in diameter of the roll 5.
  • the roll 5 is now set in rotation clockwise, the direction S1 which causes the strip 7 to decoil, and the cutting edge 27 slices through the seal 16.
  • the leading end 15 of the strip 7 separates from the roll 5 and drops by gravity along the blade 26 toward the table 34, currently occupying the angled position.
  • the wheels 19 of the metering element 18 are maintained in contact with the roll 5 to ensure the strip 7 does not decoil in an irregular manner.
  • the strip 7 is guided laterally by the restraints 36 and advanced by the nozzles 45, each of which emits a jet 75 of air, as illustrated in figure 2, directed at an angle relative to the flat surface 35 of the table 34 occupied by the strip 7.
  • each jet 75 directed parallel to the flat surface 35 serves to propel the strip 7 along the table 34, whereas the component of the jet 75 directed perpendicular to the surface 35 serves to create the aforementioned air cushion on which the strip 7 is carried.
  • the leading end 15 of the strip 7 advances along the flat surface 35 of the table 34 and reaches the preparing station 40 where the cutter device 49 makes a series of cuts through the end of the strip 7. These cuts serve to remove a length of the strip 7 greater at least than the developable circumference of the roll 5, in order to discard both the leading end 15 and any part of the first coil of the strip 7 underneath which may still bear a trace of the seal 16 cut through previously by the Vee cutting edge 27.
  • the movement of the new strip 7 during the step described above is governed by the master control unit 14, which causes the roll 5 to rotate through a distance such as will decoil a predetermined quantity of strip 7 corresponding in length to a multiple of the circumference of the roll acquired previously by way of the metering element 18.
  • the roll 5 is caused to rotate at least two full revolutions about the relative axis 9a in the decoiling direction S1, and more exactly one and a half revolutions, allowing the cutting edge 27 to slice through the seal 16 so that the leading end 15 can be freed and directed toward the preparing station 40, then another full revolution to complete the preparation; in this way, the timing of the preparing step is rendered independent of the position of the seal 16 securing the leading end 15 of the strip 7.
  • the roll 5 is caused to rotate in the direction S2 counter to the decoiling direction S1 so that the cut end of the strip 7 recedes to an intermediate position on the flat surface 35 of the table 34, as illustrated in figure 4.
  • a photocell 76 embedded in the table 34 and connected to the master control unit 14 detects the absence of the recoiling strip 7 and causes the roll 5 to cease rotation.
  • the strip 7 With the full preparation cycle thus completed, the strip 7 will present a new leading end 15 free of defects and with no traces of the seal 16.
  • the table 34 is caused by the relative actuator 39 to rotate anticlockwise about its axis 38 and assume the substantially horizontal position aforementioned, illustrated in figure 5, in which the free end 34b is aligned with the entry end 50a of the conveyor 50.
  • the roll 5 is set in rotation once again in the decoiling direction S1 and the leading end 15 of the strip 7 begins moving along the conveyor 50; the conveyor, as already intimated, incorporates a pneumatic device 53 by which the strip 7 is carried and propelled substantially in the same way as when passing along the table 34.
  • the leading end 15 of the strip 7 thus reaches the entry end 50a of the conveyor 50 following the first trajectory T' and advances thence along the curved path P, guided by the lateral restraints 51 of the conveyor 50 and by the pneumatic device 53 in the bed of the conveyor 50.
  • each of the blower ports 53a lying externally of the path P followed by the strip 7 produces a respective angled jet 77 directed at the portion of the strip 7 occupying the exit end 50b of the conveyor 50, thereby ensuring the strip 7 does not deviate from the path P and separate from the bed of the conveyor 50, and ensuring also that the trajectory T" followed by the exiting strip 7 is not diverted by an angle more than 180° from the entry trajectory T'.
  • the adhesive tab 56 peeled from the backing strip 57 by the finger 62 is applied to the leading end 15 of the strip 7 at a point near the exit end 50b of the conveyor 50.
  • the photocell 54 installed at the exit end 50b of the conveyor 50 senses the presence of the leading end 15 of the strip 7 and relays a signal to the master control unit 14, which then proceeds to set the first drum 58 in rotation at a peripheral velocity matching the linear velocity of the leading end 15.
  • the tab 56 peeling from the backing strip 57 is picked up by the aspirating sector 58a of the first drum 58 from the side of the non-adhesive face, and fed forward along a path substantially tangential to the trajectory T" of the strip 7 exiting from the conveyor 50.
  • the advancing strip 7 engages a rear portion 78 of the adhesive face 65 presented by the tab 65, leaving a front portion 79 of the face 65 exposed; the two portions 78 and 79 being defined rear and front in relation to the direction followed by the strip 7.
  • the attracted tab 56 thus continues to revolve on the drum 58 and with it the leading end 15 of the strip 7, which is attached to the adhesive face 65 of the selfsame tab 56.
  • the master control unit 14 activates the cutter mechanism 73 to sever the depleting strip 8 from the relative roll 6 by cutting the trailing end portion 42 at an instant timed with the advance of the leading end 15 of the new strip 7, in such a way that the end portion 42 will be placed faultlessly on the front portion 79 of the adhesive face 65 offered by the tab 56 when at a minimum distance from the two drums 58 and 59.
  • the second drum 59 is set in rotation synchronously with the first drum 58 in such a way that the respective sectors 59a and 58a of greater radius rotate in mutual opposition at the point of minimum distance between the drums 58 and 59.
  • the restriction offered to the strips 7 and 8 between the sectors of greater radius presented by the drums 58 and 59 has the effect of rolling the splice 80 at the point where the two strips 7 and 8 are united, thereby compressing the adhesive tab 56 and the jointed ends 15 and 42 and maximizing their mutual adhesion. Thereafter, the new strip 7 is fed forward to the packaging machine (not illustrated) downstream of the device 1.
  • the new strip 7 changes trajectory gradually as it separates from the guide components 34 and 50, passing through a series of intermediate configurations P', P" and P"' to the point of assuming a substantially taut profile V indicated by a phantom line in figure 7.
  • the metering element 18 will have been rotated previously on its arm 21 to the inactive position so as not to interfere with the strip 7 during the variation in trajectory.
  • leading end 15 of the new strip 7 coiled onto the roll 5 might be weighted, so as to favour its descent gravitationally along the blade 26 and toward the table 34 at the moment when the seal 16 is cut through.
  • Figure 9 illustrates a further embodiment of the device according to the present invention, which can be adopted to advantage when decoiling rolls 5 of strip 7 of which the leading end 15 is not fixed to the adjacent coil, or in practice not secured by a seal 16 or other equivalent element.
  • the station 81 in question is equipped with an aspirating roller 82 carried by an arm 83 pivotable about an axis 84 disposed parallel to the axis 9a of the roll 5.
  • the roller 82 is connected to a source of negative pressure familiar in embodiment (not indicated), and set in rotation anticlockwise, as indicated by the arrow R, by a motor likewise of familiar embodiment (not indicated).
  • the roller 82 incorporates an internal manifold 82a serving to confine the aspirating action within a limited area coinciding substantially with a sector to a circle denoted A in figure 9.
  • the arm 83 is rotatable about the axis 84 through the agency of an actuator 85 and can be made thus to assume an operating position variable according to the possible differences in diametral dimensions of new rolls 5 being decoiled.
  • the station 81 also comprises a reaction roller 86 operating in conjunction with the aspirating roller 82 and rotatable about the axis 38 of the pivot 37 to which the table 34 is hinged.
  • the reaction roller 86 is driven by way of a friction wheel 87 mounted to an arm 88 likewise pivotable about the hinge axis 38 and capable of movement between an operating position of contact between the friction wheel 87 and the surface 17 of the roll 5, indicated by solid lines, and an idle position, indicated by phantom lines, in which the friction wheel 87 is distanced from the roll 5.
  • the arm 88 is caused to rotate about the hinge axis 38 by an actuator 89 of which the rod is connected to the end of the arm 88 opposite from the end hinged about the selfsame axis 38.
  • the aspirating roller 82 is made to move by the relative actuator 85 in the direction of the arrow R toward the roll 5, which rotates in the decoiling direction S1; at the same time, the second arm 88 mentioned is rotated by the relative actuator 89 so as to bring the friction wheel 87 into contact with the surface of revolution 17 of the roll 5.
  • the free leading end 15 of the strip 7 appears alongside the aspirating roller 82, it is taken up and retained by this same roller and directed with the aid of the reaction roller 86 toward the table 34.
  • the aspirating roller 82 is then caused to retract along its own axis 82b of rotation by actuator means not illustrated in the drawings, in such a manner as to avoid interfering with the strip 7 decoiling from the roll 5.
  • reaction roller 86 might be driven by an independent device, thereby dispensing with the friction wheel 87.
  • Figures 9 to 12 show an alternative embodiment of the second means 91 of guiding the strip 7.
  • Such means 91 comprise a pickup mechanism 92 with a head 93 designed to engage the strip 7, which is provided with suction holes connected to a vacuum device of conventional type (not illustrated).
  • the aspirating head 93 of the mechanism 92 is carried by one end 94a of an arm 94 hinged in its turn at the end 94b remote from the head 93 to a shaft 95 of which the axis 96 lies parallel to the axis 9a of the decoiling roll 5 of new strip 7.
  • the pickup mechanism 92 further comprises a first actuator 97 serving to set the shaft 95 in rotation about its axis 96 and a second actuator 98 by which the mechanism 92 is caused to shift along this same axis 96.
  • the table 34 will be caused by the relative actuator 39 to rotate anticlockwise about its hinge axis 38 and assume a position essentially angled upwards, as indicated in figure 10, so as to facilitate the step in which the leading end 15 of the strip 7 is attracted by the aspirating head 93 of the pickup mechanism 92.
  • the roll 5 is again set in rotation in the clockwise decoiling direction S1 so as to feed the strip 7 smoothly to the splicing station 41.
  • the mechanism 92 is made to retract along the axis 96 by the actuator 98, so as not to hinder normal decoiling of the strip 7, and so as not to impede the strip from assuming a taut configuration illustrated by phantom lines in figure 12.
  • the aspirating roller 82 is also shifted in the axial direction to facilitate normal decoiling of the strip 7 from the roll.

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  • Replacement Of Web Rolls (AREA)
EP01830353A 2000-06-05 2001-05-30 Vorrichtung zum automatischen Spleissen von Rollen auf abgewickelten Bahnen Expired - Lifetime EP1162164B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000BO000335A IT1321284B1 (it) 2000-06-05 2000-06-05 Dispositivo per la giunzione automatica di nastri svolti da bobine.
ITBO000335 2000-06-05

Publications (2)

Publication Number Publication Date
EP1162164A1 true EP1162164A1 (de) 2001-12-12
EP1162164B1 EP1162164B1 (de) 2004-02-04

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EP01830353A Expired - Lifetime EP1162164B1 (de) 2000-06-05 2001-05-30 Vorrichtung zum automatischen Spleissen von Rollen auf abgewickelten Bahnen

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EP (1) EP1162164B1 (de)
AT (1) ATE258891T1 (de)
DE (1) DE60101922T2 (de)
IT (1) IT1321284B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1439142A2 (de) * 2003-01-16 2004-07-21 Ferag AG Verfahren und Vorrichtung zum Verbinden von zwei Materialbahnen
WO2004080869A2 (en) * 2003-03-13 2004-09-23 Fabio Perini S.P.A. An unwinder device for reels of web-like material with temporary accumulator members for the material unwound in the phase of reel substitution and relative method
WO2004080867A3 (en) * 2003-03-13 2004-11-11 Perini Fabio Spa An automatic and continuous unwinder device for supplying web-like material from reels
CN110304481A (zh) * 2019-07-22 2019-10-08 黄山富田精工制造有限公司 自动贴胶装置
US10457512B2 (en) 2016-09-19 2019-10-29 New Era Converting Machinery, Inc. Automatic lapless butt material splice
CN111532846A (zh) * 2020-07-07 2020-08-14 青州蒙特机械有限公司 转塔式不停机放卷设备
CN114845947A (zh) * 2020-01-14 2022-08-02 浩建F.A有限公司 重绕系统
EP4112516A4 (de) * 2020-07-14 2024-04-10 LG Energy Solution, Ltd. Elektrodenverbindungsvorrichtung und automatisiertes elektrodenverbindungsverfahren damit
WO2024074325A1 (de) * 2022-10-04 2024-04-11 Körber Technologies Gmbh Vorrichtung zum verbinden von materialbahnen für die herstellung von energiezellen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015208112A1 (de) * 2015-04-30 2016-11-03 Krones Aktiengesellschaft Vorrichtung zum Umgang mit auf Rollen aufgewickeltem Flach- und/oder Folienmaterial
DE102020108161B4 (de) 2020-03-25 2024-03-21 Khs Gmbh Verfahren zum Verpacken von Produkten
DE102020108158A1 (de) 2020-03-25 2021-09-30 Khs Gmbh Verfahren zum Verpacken von Produkten sowie Verpackungsanlage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245795A (en) * 1978-11-28 1981-01-20 Hauni-Werke Korber & Co. Kg. Supplying bobbins to web splicing devices
US4629531A (en) * 1983-12-28 1986-12-16 Hiroshi Kataoka Apparatus for joining sheet ends
DE3523139C1 (en) * 1985-06-28 1987-02-26 Bat Cigarettenfab Gmbh Device on a machine of the tobacco-processing industry for automatically receiving and transferring the start of a strip of paper to a splicing station
US5169082A (en) * 1990-08-24 1992-12-08 Fabriques De Tabac Reunies, S.A. Method and apparatus for splicing reels of paper
US5177446A (en) * 1989-07-05 1993-01-05 G. D. Societa Per Azioni Device for monitoring the depletion of material uncoiling from rolls, applicable in particular to wrapping machines
US5326419A (en) * 1991-10-16 1994-07-05 G.D. S.P.P. Device for splicing strips of limited transverse dimensions automatically
US5328114A (en) * 1990-03-27 1994-07-12 G.D Societa' Per Azioni Device for removing adhesive tape from a reel of strip material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245795A (en) * 1978-11-28 1981-01-20 Hauni-Werke Korber & Co. Kg. Supplying bobbins to web splicing devices
US4629531A (en) * 1983-12-28 1986-12-16 Hiroshi Kataoka Apparatus for joining sheet ends
DE3523139C1 (en) * 1985-06-28 1987-02-26 Bat Cigarettenfab Gmbh Device on a machine of the tobacco-processing industry for automatically receiving and transferring the start of a strip of paper to a splicing station
US5177446A (en) * 1989-07-05 1993-01-05 G. D. Societa Per Azioni Device for monitoring the depletion of material uncoiling from rolls, applicable in particular to wrapping machines
US5328114A (en) * 1990-03-27 1994-07-12 G.D Societa' Per Azioni Device for removing adhesive tape from a reel of strip material
US5169082A (en) * 1990-08-24 1992-12-08 Fabriques De Tabac Reunies, S.A. Method and apparatus for splicing reels of paper
US5326419A (en) * 1991-10-16 1994-07-05 G.D. S.P.P. Device for splicing strips of limited transverse dimensions automatically

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1439142A3 (de) * 2003-01-16 2005-04-06 Ferag AG Verfahren und Vorrichtung zum Verbinden von zwei Materialbahnen
EP1439142A2 (de) * 2003-01-16 2004-07-21 Ferag AG Verfahren und Vorrichtung zum Verbinden von zwei Materialbahnen
WO2004080869A2 (en) * 2003-03-13 2004-09-23 Fabio Perini S.P.A. An unwinder device for reels of web-like material with temporary accumulator members for the material unwound in the phase of reel substitution and relative method
WO2004080867A3 (en) * 2003-03-13 2004-11-11 Perini Fabio Spa An automatic and continuous unwinder device for supplying web-like material from reels
WO2004080869A3 (en) * 2003-03-13 2004-11-18 Perini Fabio Spa An unwinder device for reels of web-like material with temporary accumulator members for the material unwound in the phase of reel substitution and relative method
US7350740B2 (en) 2003-03-13 2008-04-01 Fabio Perini S.P.A. Automatic and continuous unwinder device for supplying web-like material from reels
US7500634B2 (en) 2003-03-13 2009-03-10 Fabio Perini S.P.A. Unwinder device for reels of web-like material with temporary accumulator members for the material unwound in the phase of reel substitution and relative method
CN1777554B (zh) * 2003-03-13 2010-09-01 法比奥·泼尼股份公司 展开幅状材料原卷的开卷机设备和供给幅状材料的方法
US10457512B2 (en) 2016-09-19 2019-10-29 New Era Converting Machinery, Inc. Automatic lapless butt material splice
CN110304481A (zh) * 2019-07-22 2019-10-08 黄山富田精工制造有限公司 自动贴胶装置
CN110304481B (zh) * 2019-07-22 2024-01-05 黄山富田精工智造股份有限公司 自动贴胶装置
CN114845947A (zh) * 2020-01-14 2022-08-02 浩建F.A有限公司 重绕系统
CN114845947B (zh) * 2020-01-14 2024-01-26 浩建F.A有限公司 重绕系统
CN111532846A (zh) * 2020-07-07 2020-08-14 青州蒙特机械有限公司 转塔式不停机放卷设备
EP4112516A4 (de) * 2020-07-14 2024-04-10 LG Energy Solution, Ltd. Elektrodenverbindungsvorrichtung und automatisiertes elektrodenverbindungsverfahren damit
WO2024074325A1 (de) * 2022-10-04 2024-04-11 Körber Technologies Gmbh Vorrichtung zum verbinden von materialbahnen für die herstellung von energiezellen

Also Published As

Publication number Publication date
DE60101922D1 (de) 2004-03-11
IT1321284B1 (it) 2004-01-08
EP1162164B1 (de) 2004-02-04
DE60101922T2 (de) 2004-12-09
ITBO20000335A1 (it) 2001-12-05
ATE258891T1 (de) 2004-02-15

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