EP2982629A1 - Vorrichtung und Verfahren zum Verbinden von mit wiederholten Mustern versehenen Bahnen - Google Patents

Vorrichtung und Verfahren zum Verbinden von mit wiederholten Mustern versehenen Bahnen Download PDF

Info

Publication number
EP2982629A1
EP2982629A1 EP14180387.4A EP14180387A EP2982629A1 EP 2982629 A1 EP2982629 A1 EP 2982629A1 EP 14180387 A EP14180387 A EP 14180387A EP 2982629 A1 EP2982629 A1 EP 2982629A1
Authority
EP
European Patent Office
Prior art keywords
reel
web
support hub
path
along
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Withdrawn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
EP14180387.4A
Other languages
English (en)
French (fr)
Inventor
James Carmichael
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.)
Sidel SpA
Original Assignee
Sidel 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 Sidel SpA filed Critical Sidel SpA
Priority to EP14180387.4A priority Critical patent/EP2982629A1/de
Publication of EP2982629A1 publication Critical patent/EP2982629A1/de
Withdrawn legal-status Critical Current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
    • B65H19/10—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
    • B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll
    • B65H19/1821—Flying splicing, i.e. the expiring web moving during splicing contact taking place on 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
    • 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
    • B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement 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
    • B65H19/20—Cutting-off the expiring web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/1882—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling longitudinal register of web
    • B65H23/1886—Synchronising two or more webs
    • 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
    • B65H2301/462—Form of splice
    • B65H2301/4621—Overlapping article or web portions
    • 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
    • B65H2301/46312—Adhesive tape double-sided
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/52—Translation screw-thread mechanisms
    • 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)
    • B65H2408/24—Specific machines for handling web(s) unwinding machines
    • B65H2408/241—Turret
    • B65H2408/2411—Turret with protruding guiding roll or surface between unwound rolls on mobile assembly
    • 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)
    • B65H2408/24—Specific machines for handling web(s) unwinding machines
    • B65H2408/241—Turret
    • B65H2408/2415—Turret specified by number of arms
    • B65H2408/24153—Turret specified by number of arms with two arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/75—Labelling machines

Definitions

  • the present invention relates to an apparatus and to a method for splicing webs provided with repeated patterns, so as to generate an uninterrupted feeding of said webs to a processing machine.
  • each web may consist entirely in a succession of labels to be separated by means of repeated cutting of the web itself, or it may be constituted by a strip support on which a succession of adhesive labels is applied, also known as "pressure sensitive labels," spaced from each other by predetermined amounts.
  • the present invention may be also used in the packaging field; in this specific context, the web material has a multilayer structure and is adapted to be folded, welded and cut out for achieving sealed packages, for example containing pourable food products.
  • a double-sided adhesive sheet element is previously attached upon a head segment of the new web. Said segment of the new web is then made to adhere, thanks to the action of the double-sided adhesive, on a corresponding segment of the web in use so as to obtain alignment of the corresponding labels. Simultaneously to the splicing operation, the web in use is cut in the area located immediately upstream of the segments of the two webs joined together by the double-sided adhesive sheet element. It is thus possible to restart the feeding of the labels to the labelling machine at normal working speed.
  • the present invention also relates to a method for splicing webs provided with repeated patterns, as defined in claim 20.
  • Number 1 in Figure 1 indicates as a whole an apparatus for splicing two webs 2, 3, both provided with repeated patterns (known per se and not shown), so as to generate an uninterrupted feeding of said webs 2, 3 to a processing machine (known per se and not shown).
  • Apparatus 1 can be advantageously used in the labelling field, wherein the repeated patterns of each web 2, 3 define respective labels adapted to be placed on containers (known per se and not shown), for example bottles or cans, in the cited processing machine, which in this case is constituted by a labelling machine.
  • each web 2, 3 consists entirely in a succession of labels to be separated by means of repeated cutting of the web itself; alternatively, each web 2, 3 may be constituted by a strip support on which a succession of adhesive labels are applied, also known as "pressure sensitive labels", spaced from each other by predetermined amounts.
  • apparatus 1 can be also used in the packaging field; in this specific context, each web 2, 3 has a multilayer structure and is adapted to be folded, welded and cut out for achieving sealed packages, for example containing pourable food products.
  • the repeated pattern of each web 2, 3 is therefore defined by a plurality of crease lines for forming a relative package and by images and written parts destined to be present on the package itself.
  • webs 2, 3 are unwound from respective reels 4, 5 each having a cylindrical configuration and provided with a through central hole 6.
  • web 2, unwound from reel 4 represents the web in use fed, at a working speed W and along a predetermined path P, to the next processing machine, while web 3, unwound from the reel 5, represents the new web that must be spliced to the web 2 in use before the exhaustion of the latter.
  • the new web 3 becomes the web in use ( Figures 4 to 7 ) and a new reel 5 is loaded on apparatus 1 in a condition to allow its web 3 to be subsequently spliced to the web 3 in use when the relative reel 5 will be almost exhausted.
  • Reel 5 is shown in greater details in Figure 15 ; as clearly visible in such Figure, a head segment 3a of new web 3 has, on its outer side, i.e. on its side opposite the one facing hole 6 of reel 5, one or more adhesive strips 7 adapted to be bonded in use on a corresponding segment 2a of the web 2 in use by a pressing action.
  • apparatus 1 comprises:
  • support hubs 10, 11 are mounted on a central support device 16, whilst magazine 9, joining unit 13, cutting unit 14 and discharge conveyor 15 are all arranged around support device 16.
  • support device 16 comprises a fixed frame 18 and an oscillating arm 20, protruding from opposite sides of the frame 18 and centrally connected thereto in a rotatable manner about a horizontal axis A.
  • axis A defines a fulcrum for an intermediate portion 21 of oscillating arm 20.
  • intermediate portion 21 of oscillating arm 20 is connected to frame 18 through a pivot 22 of axis A.
  • oscillating arm 20 has a longitudinal axis B, orthogonal to axis A, and carries, at its opposite end portions 23, 24 the respective support hubs 10, 11.
  • Rotation of oscillating arm 20 about axis A is controlled by an actuator assembly 25, for instance an electric motor, supported by frame 18.
  • Oscillating arm 20 is normally set in a horizontal configuration ( Figures 1-4 and 7 ) and is rotated of 180° about axis A to exchange the positions of support hubs 10, 11 with respect to the axis A itself.
  • joining unit 13 and cutting unit 14 are located on one side of axis A and in a position adjacent to the support hub 11 carrying the reel 5 of the new web 3 to be spliced to the web 2 in use; discharge conveyor 15 is instead located on the opposite side of axis A with respect to joining unit 13 and cutting unit 14 as well as adjacent to the other support hub 10 carrying the reel 4 of the web 2 in use; discharge conveyor 15 is in particular located below such support hub 10 to receive from the latter the exhausted reel 4 ( Figures 1 and 4 ).
  • Magazine 9 is placed on the same side as discharge conveyor 15 with respect to axis A but on one side of oscillating arm 20; in particular, magazine 9 carries a stack of new reels 5 arranged coaxially with an axis C parallel to axis A and facing the support hub 10 in the condition in which it has already discharged the exhausted reel 4 and is ready to receive a new reel 5, as it will be explained hereafter.
  • each support hub 10, 11 protrude orthogonally from respective end portions 23, 24 of oscillating arm 20.
  • each support hub 10, 11 has a relative longitudinal axis D, E, orthogonal to axis B, and is mounted onto the respective end portion 23, 24 of oscillating arm 20 in a rotatable manner both about its relative axis D, E and about axis B.
  • support hubs 10, 11 are independently rotated about their axes axis D, E by respective actuator assemblies 26, 27, each of which preferably comprises an electric motor carried by oscillating arm 20 and protruding from the latter on the opposite side of the relative support hub 10, 11; as already explained above, rotation of each support hub 10, 11 about its relative axis D, E allows to unwind the web 2, 3 from the relative reel 4, 5 and to feed it to the following processing machine.
  • each support hub 10, 11 about axis B is controlled by a respective actuator assembly 28, preferably an electric motor, carried by a stirrup 29 protruding laterally from oscillating arm 20.
  • each support hub 10, 11 can be set in four different positions, two of which defining a horizontal configuration of the support hub 10, 11 itself and the other two defining a vertical configuration thereof.
  • each support hub 10, 11 has its relative axis D, E parallel to axis A and has its free end 30 arranged on one side of oscillating arm 20 or on the opposite side thereof.
  • Each support hub 10, 11 is set in a normal working position, i.e. in a position in which it supports, and allows unwinding of, the reel in use, in the present example reel 4, when said support hub 10, 11 is carried by oscillating arm 20 in its horizontal configuration and extends horizontally above discharge conveyor 15 and with its free end 30 facing magazine 9.
  • each support hub 10, 11 also corresponds to a loading position of the hub 10, 11 itself, in which it is adapted to receive a new reel 5 from magazine 9, as it will be explained later on.
  • Each support hub 10, 11 is set in a splicing position, i.e. in a position in which it is adapted to allow splicing of webs 2 and 3, when said support hub 10, 11 is carried by oscillating arm 20 in its horizontal configuration, extends horizontally and is rotated of 180° about axis A with respect to the other support hub 11, 10 set in the loading or normal working position.
  • each support hub 10, 11 is arranged adjacent to joining unit 13.
  • support device 16 (in particular oscillating arm 20 in its horizontal configuration) is configured to simultaneously set support hub 11, along with the reel 5 of the new web 3, in the splicing position, and support hub 10, along with the reel 4 of the web 2 in use, in the normal working position.
  • Rotation of oscillating arm 20 about axis A allows to exchange the positions of support hubs 10, 11, i.e. to set support hub 10 in the splicing position and support hub 11 in the loading or normal working position.
  • Guiding means 12 are advantageously configured to guide the web 2 in use around, and spaced from, reel 5 mounted on support hub 11 in the splicing position so that working portion P1 of path P is located between joining unit 13 and the reel 5 itself.
  • working portion P1 of path P is substantially orthogonal to axes A, C as well as to axes D, E when support hubs 10, 11 are set in their horizontal configurations; in addition, working portion P1 of path P is also substantially orthogonal to axis B of oscillating arm 20.
  • each support hub 10, 11 has its axis D, E orthogonal to axes A and B and its free end 30 arranged above (not shown) or below ( Figure 4 ) oscillating arm 20 so respectively defining a reel seating position or a reel discharging position.
  • the new reel in the present case reel 5, can be arranged in its final condition with respect to the relative support hub 10, 11; in the reel discharging position ( Figure 4 ), the exhausted reel, in the present case reel 4, can be discharged by gravity from the relative support hub 10 discharge conveyor 15.
  • magazine 9 comprises a support structure 31 externally supporting a stack of new reels 5 arranged coaxially with axis C and adjacent to one another.
  • Support structure 31 of magazine 9 comprises a base 32 and an upper supporting portion 33 carrying in use the relative stack of reels 5 and movable with respect to base 32 along axis C towards and away from the facing support hub 10 in its loading position.
  • supporting portion 33 of magazine 9 is movable along axis C between a rest position ( Figure 1 ), in which the relative stack of new reels 5 is spaced from the facing support hub 10 in the loading position, and a working position (not shown), in which one free end reel 5 of the stack of reels 5 is engaged by the support hub 10 in the loading position so as to be withdrawn from the magazine 9.
  • Base 32 preferably comprises a pair of longitudinal bars 34, parallel to axis A, C, and two or more transverse bars 35, connecting longitudinal bars 34 to each other and extending orthogonally thereto.
  • Supporting portion 33 substantially has a cradle-like structure and comprises:
  • longitudinal sides 37 of frame 36 are coupled in a sliding manner with respective guiding rails 42 protruding from the upper surface of base 32 and extending parallel to axis C as well as on the opposite sides thereof.
  • Columns 41 are preferably slanted with respect to supporting bars 40 and converge to each other starting from frame 36.
  • the reels 5 of each stack are placed adjacent to one another and have respective lower portions resting on supporting bars 40.
  • supporting portion 33 is controlled by an actuator assembly (known per se and not shown), preferably an electric motor, supported by base 32 and having an externally threaded output shaft engaging a nut screw carried by plate element 39.
  • actuator assembly preferably an electric motor, supported by base 32 and having an externally threaded output shaft engaging a nut screw carried by plate element 39.
  • Magazine 9 further comprises an actuator assembly 43 to move the relative stack of reels 5 towards support device 16 along axis C and with respect to supporting portion 33 in order to recover the space previously occupied by the withdrawn reel 5.
  • actuator assembly 43 is selectively activated to move forward the stack of reels 5 so that the free end reel 5 of the stack is carried to the same position as the one previously occupied by the end reel 5 withdrawn by the support hub 10.
  • the movement of the stack of reels 5 with respect to the supporting portion 33 carries the free end reel 5 of the stack, destined to be withdrawn by the adjacent support hub 10, onto free end portions 45 of supporting bars 40.
  • Actuator assembly 43 basically comprises an actuator 46, preferably an electric motor (only partially shown in Figure 1 ), supported by plate element 39, and transmission means 47 to transform the rotational movement of an output shaft (known per se and not shown) of the actuator 46 into a translational movement, along axis C, of a pushing member 48 cooperating with an end reel 5 of the stack of reels 5, opposite to the free end reel 5 destined to be first withdrawn by the adjacent support hub 10.
  • actuator 46 preferably an electric motor (only partially shown in Figure 1 ), supported by plate element 39, and transmission means 47 to transform the rotational movement of an output shaft (known per se and not shown) of the actuator 46 into a translational movement, along axis C, of a pushing member 48 cooperating with an end reel 5 of the stack of reels 5, opposite to the free end reel 5 destined to be first withdrawn by the adjacent support hub 10.
  • Pushing member 48 comprises a plate element 49, cooperating with the stack of reels 5 and extending parallel to plate element 39, and a plurality of guiding rods 50 protruding orthogonally from plate element 49 and engaging, in a sliding manner parallel to axis C, respective through holes formed in the plate element 39 itself.
  • Transmission means 47 comprise a screw 51 having one end connected to plate element 49 of pushing member 48, and a nut screw 52 supported by plate element 39 and engaged by screw 51.
  • each support hub 10, 11 further comprises retaining means 55 selectively set between a release configuration ( Figure 8 and 9 , left sides), in which they allow engagement/disengagement of the support hub 10, 11 into/from a core of the reel 5 to be withdrawn from magazine 9, and a retaining configuration ( Figure 8 and 9 , right sides), in which they prevent disengagement of the engaged reel 5 from the support hub 10, 11.
  • support hubs 10, 11 are identical to one another, only one of them, in particular support hub 10, will be described hereafter for the sake of simplicity; it is however clear that the following description will apply to both support hubs 10, 11.
  • Retaining means 55 are advantageously defined by an outer wall 56 of support hub 10, which is selectively expanded/retracted in a radial direction with respect to its axis D.
  • outer wall 56 of support hub 10 comprises a plurality of radially outer sectors 57, which are radially movable with respect to axis D between a retracted position ( Figures 8 and 9 , left sides), in which they define the minimum outer diameter of support hub 10 so allowing engagement/disengagement of the support hub 10 into/from the core of a respective reel 5, and an expanded position ( Figures 8 and 9 , right sides), in which they define the maximum outer diameter of the support hub 10 so retaining the reel 5 onto the outer surface of the support hub 10 itself.
  • Retracted position of sectors 57 corresponds to release configuration of retaining means 55, whilst expanded position of sectors 57 corresponds to retaining configuration of retaining means 55.
  • support hub 10 comprises:
  • inner core 60 is angularly coupled with support shaft 58, whilst sectors 57 are angularly coupled with inner core 60.
  • Axial displacements of inner core 60 along axis D are preferably achieved by feeding/removing a pressure fluid, such as air, into/from a sealed chamber 63 formed into support hub 10 between inner core 60 and support shaft 58.
  • a pressure fluid such as air
  • pressure fluid is fed or removed into/from sealed chamber 63 through an axial channel 64, formed into support shaft 58, and a plurality of radial passages 65, also formed into support shaft 58 and extending from one closed end of channel 64 to the sealed chamber 63.
  • support hub 10 also comprises a first radially-protruding annular flange 66, fitted to one end of support shaft 58 and defining free end 30 of the support hub 10 itself, and a second radially-protruding annular flange 68 secured to support shaft 58 in a position spaced from flange 66 and adapted to define in use an abutment surface for the relative reel 5 in its final condition.
  • both flanges 66, 68 are provided with respective radial grooves 69, 70 engaged in a sliding manner by respective teeth 71 axially protruding from opposite axial ends of the sector 57 itself.
  • each sector 57 is linked to flange 68 in an axially fixed position and in a radially movable manner.
  • Support hub 10 further comprises a helical spring 72, wound about support shaft 58, axially interposed between flange 68 and inner core 60 and exerting an elastic load on the inner core 60 itself to maintain it in a first axial position ( Figure 9 , left side) corresponding to the retracted position of sectors 57.
  • Inner core 60 is displaced in use, against the thrust of spring 72, into a second axial position ( Figure 9 , right side), corresponding to the expanded position of sectors 57, by feeding the pressure fluid into sealed chamber 63.
  • conical mating surfaces 61, 62 of support hub 10 converge towards flange 68, so that radial expansion of sectors 57 is achieved by axially displacing inner core 60 towards the flange 68 itself.
  • Support hub 10 also comprises one or more elastic rings 73 extending around sectors 57 and exerting an elastic load thereon to maintain them in their retracted positions.
  • annular flange 68 is placed below radially expandable sectors 57 so as to allow the relative reel 5 to be seated against the annular flange 68 itself by radially retracting and expanding the sectors 57.
  • annular flange 68 is placed above radially expandable sectors so 57 as to allow to discharge the core of the exhausted reel 4 by gravity and by retracting the sectors 57.
  • joining unit 13 comprises pressing means 75, which contact the web 2 in use advancing along portion P1 of path P and are selectively activated to press segment 2a of the web 2 itself onto segment 3a of new web 3, while this latter segment is advanced by actuator assembly 27 at the same working speed W as the web 2 in use.
  • Joining unit 13 further comprises actuator means 76 for moving pressing means 75 to and away from reel 5 of new web 3 along a direction F transversal to portion P1 of path P as well as orthogonal to axes A, C.
  • Actuator means 76 are connected to pressing means 75 by spring means 77 to allow a dampened action of the pressing means 75 on new reel 5 during the splicing operation as well as slight oscillations of the pressing means 75 themselves with respect to direction F so as to perfectly adapt to the profile of the new reel 5.
  • Actuator means 76 along with pressing means 75, are carried by a fixed support structure 78, partially shown in Figures 12 and 13 .
  • Pressing means 75 comprise a holder element 79, connected to actuator means 76 through spring means 77, and two cylindrical rollers 80, carried by holder element 79 and adapted to cooperate respectively with a leading portion and a trailing portion of segment 2a of the web 2 in use during splicing of the latter on head segment 3a of the new web 3, unwound from reel 5 at working speed W.
  • rollers 80 have respective axes G parallel to axes A, C as well as to axes D, E of support hubs 10, 11 in their horizontal configurations.
  • Holder element 79 integrally comprises a rectangular plate-shaped body 81 and two pairs of protruding arms 82, each pair supporting a relative roller 80; in particular, as shown in Figure 13 , each roller 80 is arranged between a relative pair of arms 82.
  • actuator means 76 comprise:
  • slider 85 comprises a first plate 87, connected to holder element 79 through spring means 77, a second plate 88, connected to transmission means 86, and a plurality of sliding rods 89, four in the example shown, connecting plates 87, 88 and engaging in a sliding manner respective through holes 90 formed in support structure 78 and having respective axes parallel to direction F.
  • Transmission means 86 comprise:
  • belt transmission 91 further comprises a belt 97 wound about pulleys 92, 93; it should be noted that, in the example shown, pulley 93 has a larger diameter than the one of pulley 92.
  • Rod-shaped member 94 is configured to elastically vary its length in use so as to dampen impact of pressing means 75 on the webs 2, 3 to be spliced as well as on new reel 5.
  • rod-shaped member 94 is formed by a first hollow element 98, by a second element 99 partially engaging in a sliding manner element 98, and by a helical spring 100 wound about both elements 98, 99 and having opposite ends cooperating with respective facing external annular abutments 101, 102 of elements 98, 99; in absence of external actions, rod-shaped member 94 is maintained by spring 100 at a given overall length; during impact of pressing means 75 on new reel 5, spring 100 is compressed and rod-shaped member 94 reduces its length by increasing penetration of element 99 into element 98.
  • element 98 defines end 95 of rod-shaped member 94, whilst element 99 defines end 96.
  • elements 98, 99 and spring 100 of rod-shaped member 94 may be replaced by bellows.
  • spring means 77 comprise a plurality of elastically compressible pads 103, four in the example shown, interposed between plate-shaped body 81 of holder element 79 and plate 87 of slider 85.
  • Pads 103 are made of an elastically deformable material, which is compressed during interaction of rollers 80 with new reel 5 so as to dampen impact.
  • each pad 103 is preferably defined by a rubber disk formed by two truncated-cone portions joined together at a common restricted central section.
  • Pads 103 are configured to allow slight oscillations of holder element 79 and rollers 80 with respect to direction F at the impact of pressing means 75 on new reel 5, if the latter is not perfectly cylindrical; in this way, rollers 80 may adapt to the profile of the reel 5.
  • cutting unit 14 comprises a cutting mechanism 104, directly supported by holder element 79 of pressing means 75 and by plate 87 of slider 85, and a fixed contrasting element 105, arranged on the opposite side of the portion of the web 2 in use to be cut with respect to cutting mechanism 104 and adapted to define a contrasting action against the cutting mechanism 104 itself during the cutting operation.
  • cutting mechanism 104 is activated as a result of the compression of pads 103 during impact of rollers 80 on new reel 5.
  • cutting mechanism 104 comprises:
  • hinge point of actuating lever 109 on lever blade 106 is closer to end 108 than cutting edge 107.
  • guiding means 12 comprise a plurality of guiding rollers, four in the example shown, indicated with 112, 113, 114, 115, about which the web 2 in use is wound to be fed along path P in turn extending around the new reel 5 mounted on support hub 11 in its splicing position.
  • Rollers 112, 113, 114, 115 have respective axes L, M, N, Q, parallel to axes A, C, G, H, I as well as to axes D, E of support hubs 10, 11 in their horizontal configurations.
  • Roller 112 protrudes from support device 16 to cooperate with the web 2 in use and is advantageously retractable along its axis L to avoid interference with support hubs 10, 11 and oscillating arm 20 during rotation of the latter about axis A to exchange the positions of the support hubs 10, 11 themselves.
  • roller 112 is axially movable between a rest position, in which it is at least partially retracted within support device 16 so as to not interact with the web 2 in use, and an operating position, in which it cooperates and guides the web 2 in use.
  • Displacements of roller 112 along its axis L are controlled by actuator means (known per se and not shown), such as a linear actuator carried by support device 16.
  • roller 113 is retractable along its axis M like roller 112 and is also movable between a first position, in which it is arranged upstream from joining unit 13 and cutting unit 14 along path P, and a second position, in which it is arranged downstream from joining unit 13 and cutting unit 14 along said path P.
  • roller 113 The axial retraction of roller 113 along its axis M is used to avoid interference with joining and cutting units 13, 14 as well as with the webs 2, 3 during movement of the roller 113 itself from its first position to its second position.
  • roller 113 from the first position to the second position is performed after the splicing of webs 2, 3 and the cutting of web 2 to put the roller 113 itself in a condition ready to again interact with the new web 3, in the meanwhile become the web in use; the return of roller 113 from the second position to the first position is performed to accompany and guide the web 3, become the web in use, during transition of support hub 11 carrying the reel 5 from the splicing position to the normal working position.
  • Roller 113 is advantageously carried by a slider 116 movable along a fixed guide 117 extending on the opposite side of support hub 11 in the splicing position with respect to axis A.
  • guide 117 defines at its opposite end portions the first and second position of roller 113.
  • Displacements of slider 116 along guide 117 are controlled by a motor 118, preferably an electric motor, whose output shaft is defined by a screw 119 extending parallel to guide 117 and engaging a nut screw 120 provided on the slider 116 itself.
  • a motor 118 preferably an electric motor, whose output shaft is defined by a screw 119 extending parallel to guide 117 and engaging a nut screw 120 provided on the slider 116 itself.
  • Displacements of roller 113 along its axis M are controlled by a linear actuator 121 carried by slider 116.
  • Rollers 114, 115 are of normal type and do not have the possibility to retract along their axes N, Q. Rollers 114, 115 are both arranged downstream of joining and cutting units 13, 14 along path P.
  • rollers 80 By activating motor 83, rollers 80 start to move along direction F towards reel 5 bringing the web 2 in use closer to the new web 3.
  • rotation of output shaft 84 of motor 83 about axis H (in a clockwise direction in Figure 12 ) produces a corresponding rotation of pulley 92 about the same axis and, through belt 97, a rotation of pulley 93 about axis I.
  • actuator assembly 27 is activated to rotate support hub 11 about its axis E and advancing the new web 3 unwound from reel 5 at the same working speed W as the web 2 in use.
  • rollers 80 When the two webs 2, 3 move at the same speed, rollers 80, advanced along direction F by actuator means 76, press segment 2a of the web 2 in use on head segment 3a of the new web 3 ( Figures 3 and 11 ). Impact of rollers 80 on new reel 5 is dampened by the action of spring 100, which reduces length of rod-shaped member 94, and by compression of pads 103.
  • Possible misalignments between pressing means 75 and reel 5 may be corrected by a slight oscillation of holder element 79 with respect to direction F as allowed by pads 103.
  • the new web 3 reaches working speed W of the web in use prior to starting the splicing operation; such speed is then maintained during the whole splicing operation.
  • new web 3 become the web in use, which is unwound from reel 5 and fed to the next processing machine by guiding rollers 114, 115 only ( Figure 4 ), as guiding rollers 112, 113 are both disengaged by the web 2 as a result of the cutting action.
  • Support hub 10 is rotated by the relative actuator assembly 28 about axis B to the reel discharging position, wherein the exhausted reel 4 is released to discharging conveyor 15 by gravity ( Figure 4 ).
  • support hub 10 is again rotated about axis B by the relative actuator assembly 28 to return to its normal working position or loading position.
  • a new reel 5 can therefore be loaded on support hub 10 from magazine 9.
  • supporting portion 33 of magazine 9 is advanced, together with the stack of new reels 5, towards the facing support hub 10, which still has its sectors 57 in the retracted position ( Figures 8 and 9 , left sides). This movement ends when supporting portion 33 reaches its working position, in which the free end reel 5 of the stack is engaged by support hub 10.
  • Pressurized air is then fed to sealed chamber 63 of support hub 10 through axial channel 64 and radial passages 65 formed through support shaft 58 ( Figure 9 ). Pressurized air acts against the thrust of spring 72 and produces an axial displacement of inner core 60 towards flange 68 and its second axial position. During this axial displacement, inner core 60 slides with its conical surfaces 61 along corresponding conical surfaces 62 of sectors 57, so producing a radial movement of sectors 57 outwards to their expanded positions (retaining configuration of retaining means 55).
  • Supporting portion 33 of magazine 9 is then bring back to its initial rest position. During this movement, the free end reel 5 of the stack is retained by support hub 10 and therefore withdrawn from the stack.
  • support hub 10 is rotated by the relative actuator assembly 28 about axis B to the reel seating position, in which, by releasing retaining means 55, i.e. by displacing sectors 57 to their retracted positions, the reel 5 can go down under gravity to rest on flange 68.
  • a new displacement of sectors 57 to their expanded positions allows to firmly secure the reel 5 onto support hub 10, which can therefore return to its horizontal configuration, ready to be exchanged with the other support hub 11.
  • actuator 43 moves the relative stack of reels 5 towards support device 16 along axis C and with respect to supporting portion 33 to carry the free end reel 5 of the stack to the same position as the one previously occupied by the reel 5 withdrawn by support hub 10.
  • roller 113 is retracted along its axis M to its rest position and is moved by slider 116, in turn displaced along guide 117, from the first position to the second position, in which the roller 113 is arranged downstream from joining and cutting units 13, 14 and faces the side of web 3 facing reel 5 ( Figure 4 ).
  • Motor 83 completes its rotation about axis H so as to detach rollers 80 from web 3 ( Figures 4 and 5 ).
  • roller 113 again returned to its operating position, is moved from the second position to the first position along guide 117 so as to interact and guide web 3 to its normal working position.
  • oscillating arm 20 is rotated about axis A by actuator assembly 25 to exchange the positions of support hubs 10, 11; in particular, support hub 11, carrying the reel 5 in use, is brought to the normal working position, while support hub 10, carrying the new reel 5, is brought to the splicing position.
  • roller 112 is retracted axially to its rest position so as to not interfere with oscillating arm 20 and reels 5 carried by the latter.
  • roller 112 At the end of rotation of oscillating arm 20, roller 112 is again displaced to its operating position, in which interacts with, and guides, the web 3 in use.
  • the splicing operation as well as the load and unload of the reels 4, 5 on/from the respective support hubs 10, 11 are performed in a completely automated way, without any need of human intervention.
  • support hubs 10, 11 are mounted on the opposite ends 23, 24 of oscillating arm 20 rotating about axis A, it is possible to maintain one support hub in a working condition and to use the other support hub to load a new reel, to unload the exhausted reel or to actuate the new reel so as to perform the splicing of the new web to web in use.
  • apparatus 1 allows:

Landscapes

  • Replacement Of Web Rolls (AREA)
EP14180387.4A 2014-08-08 2014-08-08 Vorrichtung und Verfahren zum Verbinden von mit wiederholten Mustern versehenen Bahnen Withdrawn EP2982629A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14180387.4A EP2982629A1 (de) 2014-08-08 2014-08-08 Vorrichtung und Verfahren zum Verbinden von mit wiederholten Mustern versehenen Bahnen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14180387.4A EP2982629A1 (de) 2014-08-08 2014-08-08 Vorrichtung und Verfahren zum Verbinden von mit wiederholten Mustern versehenen Bahnen

Publications (1)

Publication Number Publication Date
EP2982629A1 true EP2982629A1 (de) 2016-02-10

Family

ID=51298622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14180387.4A Withdrawn EP2982629A1 (de) 2014-08-08 2014-08-08 Vorrichtung und Verfahren zum Verbinden von mit wiederholten Mustern versehenen Bahnen

Country Status (1)

Country Link
EP (1) EP2982629A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109708910A (zh) * 2019-01-09 2019-05-03 江苏华频电子科技有限公司 一种手持切割机的对比检测设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043520A (en) * 1974-10-11 1977-08-23 Ab Ziristor Method and arrangement for registered splicing of a web of material while it is in motion
US4151594A (en) * 1976-02-26 1979-04-24 Bobst-Champlain, Inc. Web tension control for high-speed web handling equipment
DE4401963A1 (de) * 1994-01-25 1994-06-09 Voith Gmbh J M Einrichtung zum Herstellen einer Bahnverbindung
US5692698A (en) * 1996-02-05 1997-12-02 Forbes; Thomas J. Web feeding and transition assembly
WO2005097644A1 (de) * 2004-04-05 2005-10-20 Koenig & Bauer Aktiengesellschaft Vorrichtungen zum andrücken einer materialbahn
US20080023126A1 (en) * 2003-07-25 2008-01-31 Black Clawson Converting Machinery, Inc. Method and Apparatus for Splicing Webs
DE102012201937B3 (de) * 2012-02-09 2013-02-28 Koenig & Bauer Aktiengesellschaft Rollenwechsler und ein Verfahren zum Verbinden einer ersten Materialbahn mit einer zweiten Materialbahn

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043520A (en) * 1974-10-11 1977-08-23 Ab Ziristor Method and arrangement for registered splicing of a web of material while it is in motion
US4151594A (en) * 1976-02-26 1979-04-24 Bobst-Champlain, Inc. Web tension control for high-speed web handling equipment
DE4401963A1 (de) * 1994-01-25 1994-06-09 Voith Gmbh J M Einrichtung zum Herstellen einer Bahnverbindung
US5692698A (en) * 1996-02-05 1997-12-02 Forbes; Thomas J. Web feeding and transition assembly
US20080023126A1 (en) * 2003-07-25 2008-01-31 Black Clawson Converting Machinery, Inc. Method and Apparatus for Splicing Webs
WO2005097644A1 (de) * 2004-04-05 2005-10-20 Koenig & Bauer Aktiengesellschaft Vorrichtungen zum andrücken einer materialbahn
DE102012201937B3 (de) * 2012-02-09 2013-02-28 Koenig & Bauer Aktiengesellschaft Rollenwechsler und ein Verfahren zum Verbinden einer ersten Materialbahn mit einer zweiten Materialbahn

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109708910A (zh) * 2019-01-09 2019-05-03 江苏华频电子科技有限公司 一种手持切割机的对比检测设备
CN109708910B (zh) * 2019-01-09 2024-04-30 江苏华频电子科技有限公司 一种手持切割机的对比检测设备

Similar Documents

Publication Publication Date Title
KR101115813B1 (ko) 릴교체의 단계에 있어서 풀린 재료에 대한 일시적 축적부재를 가진 웹형상 재료의 릴용 언와인더 장치와 그 관련방법
EP2982628A1 (de) Automatisierte Vorrichtung zum Laden einer Bahnrolle
US10189665B2 (en) Unwinder of reels of web material
EP2142456B1 (de) Vorrichtung und verfahren zum brechen einer bahn
KR20050106101A (ko) 릴들로부터 웹형상의 재료를 공급하기 위한 자동연속언와인더 장치
US6966961B2 (en) Splicing device for splicing two web materials together, unwinder comprising said splicing device and relative method
CZ383797A3 (cs) Způsob řízení zásobníku navíjecího stroje
US20220289510A1 (en) Material Strip Processing System
EP1438232B1 (de) Vorrichtung und verfahren zur rollenverpackung komprimierbarer materialien
CN114408254B (zh) 一种贴棉缠膜打包装置及方法
CN106560403B (zh) 薄膜包装机薄膜供料
EP2982629A1 (de) Vorrichtung und Verfahren zum Verbinden von mit wiederholten Mustern versehenen Bahnen
JP7263510B2 (ja) 芯なしタイプの、特に食品用のアルミニウムなどのシート形態で使用するための材料のロールを提供するための機械および方法
KR20050095757A (ko) 웨브재료의 로그를 생성하는 되감기 기계 및 관련된 감기방법
JP2006130735A (ja) 積層シート材の成形方法及び装置
CZ383697A3 (cs) Navíjecí zařízení pásového materiálu
CN215323446U (zh) 一种高效的裁切编带机
JP5423498B2 (ja) 未加硫ゴム材料の供給システム
US10464766B2 (en) Roll-removal device, winding device and method for transporting away a plurality of rolls which have been wound to completion
JP7166229B2 (ja) ブレーキ装置及びブレーキ装置の作動方法
GB2566694B (en) Roll winding apparatus
KR100998157B1 (ko) 연속적 시트 권취기 및 권취 방법
KR101729462B1 (ko) 롤로 권취 중인 이동 웹에 접착제를 도포하기 위한 방법 및 장치
EP3204321B1 (de) Vorrichtung zur unterbrechung bei kurzer spannung
ITMO20110212A1 (it) Sistema per movimentare unità operative di una macchina avvolgitrice

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20151228

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20170529