WO2024053441A1 - Dispositif et procédé de raccordement - Google Patents

Dispositif et procédé de raccordement Download PDF

Info

Publication number
WO2024053441A1
WO2024053441A1 PCT/JP2023/030874 JP2023030874W WO2024053441A1 WO 2024053441 A1 WO2024053441 A1 WO 2024053441A1 JP 2023030874 W JP2023030874 W JP 2023030874W WO 2024053441 A1 WO2024053441 A1 WO 2024053441A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
pad
pass line
cutter
roll
Prior art date
Application number
PCT/JP2023/030874
Other languages
English (en)
Japanese (ja)
Inventor
飛鳥 南
Original Assignee
株式会社瑞光
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 株式会社瑞光 filed Critical 株式会社瑞光
Publication of WO2024053441A1 publication Critical patent/WO2024053441A1/fr

Links

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
    • B65H21/00—Apparatus for splicing webs

Definitions

  • the present invention relates to a (raw) web splicing device and method.
  • Patent Document 1 In order to continuously supply the raw web to the processing line, a splice is performed in which the starting end of the new web is overlapped and joined to the terminal end of the old web (Patent Document 1).
  • the web in order to make a non-stretchable web stretchable, the web may be stretched between a pair of gear-shaped stretching machines (Patent Document 2).
  • Patent Document 2 the boundary between the joint portions may break.
  • the end of the web is cut diagonally to the width direction of the web, and the diagonally cut end is
  • the sections may be connected using tape, etc.
  • old and new webs are conveyed from their respective supply rolls to one common discharge roll, so that they are inclined to each other.
  • the pad suctions and clamps the inclined raw web from the width direction, the pad does not contact the web in parallel, which causes wrinkles in the web.
  • an object of the present invention is to provide a splicing device and method that does not easily cause wrinkles in the web during splicing.
  • the splicing device of the present invention is a splicing device that joins the webs by overlapping the starting end S of the waiting web 11R on the terminal end E of the preceding web 11L, a first pass line 1L along which the first web 11L is conveyed from the first supply roll 5L along the discharge roll 6; a second pass line 1R along which the second web 11R is conveyed from the second supply roll 5R along the discharge roll 6; a first cutter 21L extending obliquely across the width direction of the first web 11L on the first pass line 1L; a second cutter 21R extending obliquely across the width direction of the second web 11R on the second pass line 1R; A first pad 31L that extends diagonally along the first cutter 21L and holds the terminal end E of the first web 11L downstream of the first cutter 21L; Downstream of the second cutter 21R, it extends obliquely along the second cutter 21R, holds the starting end S of the second web 11R, and joins the webs with the
  • the splicing method of the present invention is a splicing method in which the starting end S of the waiting web 11R is overlapped with the terminal end E of the preceding web 11L to join the webs together, a first conveyance step in which the first web 11L is conveyed from the first supply roll 5L to the first pass line 1L along the discharge roll 6; a second conveyance step in which the second web 11R is conveyed from the second supply roll 5R to the second pass line 1R along the discharge roll 6; a first cutting step of cutting the first web 11L on the first pass line 1L so as to diagonally cross the width direction of the first web 11L; a second cutting step of cutting the second web 11R on the second pass line 1R so as to diagonally cross the width direction of the second web 11R; a starting end holding step of holding the starting end S of the second web 11R on a second pad 31R; After the first conveyance step, the terminal end E of the first web 11L and the starting end S of the second web 11R is overlapped with
  • a first overlapping step of overlapping the part S a first joining step of joining the starting end S and the ending end E and joining the second web 11R to the first web 11L;
  • the discharge roll 6 is changed to a first roll so that the pass line of the web is changed to the second pass line 1R parallel to the first pass line 1L. and a first displacement step of displacing the roll from the position P1 to the second roll position P2.
  • the position of the discharge roll is displaced so that the first pass line and the second pass line are parallel to each other. Therefore, when holding the first web and the second web with each pad and cutting them, the surface (adsorption surface) of each pad is parallel to each web, facing directly (facing directly), and the webs are cut. There is no risk of wrinkles occurring in the web when it is adsorbed with a pad.
  • the path line means a path along which the web passes.
  • FIG. 1 shows one embodiment of the splicing device of the present invention, and is a front view of the device in a state in which a first web is being supplied to a processing line.
  • FIG. 2 is a side view showing the left unit of the device.
  • FIG. 3 is a front view of the splicing device with the left and right units closed.
  • FIG. 4 is a front view of the device showing a pair of webs sandwiched between a pair of pads.
  • FIG. 5 is a front view of the apparatus showing a state in which the discharge roll has moved from the first roll position to the second roll position after cutting the first web.
  • FIG. 6 is a front view of the same apparatus in a state in which the second web is being supplied to the processing line.
  • FIGS. 7A, 7B, and 7C are partially sectional front views of the left and right units in a closed state, respectively.
  • FIG. 8A is a schematic front view showing a stretching device
  • FIG. 8B is an enlarged sectional view of the same stretching device showing a stretching method.
  • FIG. 9A is a perspective view showing the first and second webs before splicing
  • FIG. 9B is a plan view showing the first and second webs after splicing.
  • FIG. 10 is a front view showing an example of a conventional splicing device.
  • FIGS. 11A and 11B are enlarged front views showing an example of a conventional joining method.
  • the splicing device 10 includes a first winding portion 12L in which a first web 11L is wound in a roll shape, and a second web 11R, which is a reserve for the first web 11L, is wound in a roll shape.
  • the second winding part 12R to be rotated, the bracket part 13 supporting the first and second winding parts 12L, 12R, and the bracket part 13 near the first and second winding parts 12L, 12R.
  • a cutting section 20 provided downstream of the first and second webs 11L and 11R, a splice section 30 that joins the first and second webs 11L and 11R, and a splice section 30 provided downstream of the splice section 30.
  • a tension control section 40 that controls the tension of the running web; an accumulation section 50 that is provided at the most downstream and accumulates the web in use; and a large number of parts that guide the running of the first and second webs 11L and 11R.
  • a guide roller is provided.
  • the first and second webs 11L and 11R are, for example, flexible webs such as nonwoven fabrics, the first web 11L is wound around the first winding portion 12L, and the second web 11R is It is wound around the second winding portion 12R. Adhesive tape is attached to the tip ends of the first and second webs 11L and 11R for joining with a spare web. Further, the web used here is, for example, a nonwoven fabric such as a top sheet, back sheet, gathered sheet, etc. used for disposable diapers.
  • the first and second winding portions 12L and 12R have rotating shafts, and are provided with roll-shaped first and second webs 11L and 11R wound around a winding core.
  • the first and second winding portions 12L and 12R are provided on the bracket portion 13 at a distance such that the first and second webs 11L and 11R do not come into contact with each other.
  • the remaining amount detection units 14L and 14R detect the remaining amounts of the first and second webs 11L and 11R wound around the first and second winding portions 12L and 12R, and determine which windings are used in a predetermined state. Outputs a detection signal to switch the circuit.
  • the first and second drive rollers 15L, 15R are rotationally driven by a drive motor (not shown).
  • Nip rollers 16L, 16R are provided adjacent to each drive roller 15L, 15R.
  • Each drive roller 15L, 15R nip and convey the first and second webs 11L, 11R with nip rollers 16L, 16R.
  • Each drive roller 15L, 15R detects the running speed of the first and second webs 11L, 11R, respectively, by a drive control mechanism (not shown), and rotates the first and second winding portions 12L, 12R so as to reach a predetermined speed. Control each air brake.
  • the first drive roller 15L is provided upstream of the first supply roll 5L.
  • the second drive roller 15R is provided upstream of the second supply roll 5R.
  • the cutting section 20 includes a first cutter 21L provided at a position close to the pass line (first pass line) of the first web 11L on the downstream side of the first and second supply rolls 5L, 5R, and a second web 11L.
  • a second cutter 21R is provided at a position close to the pass line (second pass line) of 11R.
  • the first and second cutters 21L and 21R have a width larger than the width of the first and second webs 11L and 11R so that they can cut the first and second webs 11L and 11R, respectively.
  • the first cutter 21L is connected to an air cylinder mechanism (not shown) which is a drive mechanism, and moves in a direction approaching the first web 11L when cutting the first web 11L.
  • the second cutter 21R is also connected to an air cylinder mechanism (not shown) which is a drive mechanism, and moves in a direction approaching the second web 11R when cutting the second web 11R.
  • the splice portion 30 is provided on the downstream side near the cutting portion 20, and includes a first pad 31L provided at a position along the path line of the first web 11L and a position along the path line of the second web 11R. , a first drive mechanism 32L that moves the first pad 31L, and a second drive mechanism 32R that moves the second pad 31R.
  • the first and second pads 31L and 31R are provided with suction means for suctioning and holding the first and second webs 11L and 11R.
  • the first and second drive mechanisms 32L and 32R are constituted by air cylinder mechanisms and the like, and move the first and second pads 31L and 31R in a direction toward each other.
  • the first and second pads 31L, 31R move toward each other while suctioning and holding the respective webs 11L, 11R, bring them into pressure contact, and prepare a spare web.
  • the two are joined via the adhesive tape provided at the tip.
  • the tension control unit 40 is provided downstream of the splice unit 30 via a guide roller, and includes a tension roller 41 that controls the tension of the running web, and a rotating arm 42 that has the tension roller 41 attached to one end. have The tension control unit 40 keeps the tension of the running first and second webs 11L and 11R constant by swinging.
  • the storage section 50 is provided downstream of the tension control section 40.
  • the storage unit 50 includes a plurality of fixed rollers 51, a plurality of movable rollers 52 that move close to and away from the fixed roller 51, and a drive mechanism 53 that moves the movable rollers 52.
  • the fixed rollers 51 are arranged substantially in a line.
  • the movable roller 52 is provided apart from the fixed roller 51.
  • the movable roller 52 swings toward and away from the fixed roller 51 by a drive mechanism 53 configured with an air cylinder mechanism.
  • the web in use is alternately wound around a fixed roller 51 and a movable roller 52.
  • the storage part 50 moves in a direction in which the movable roller 52 moves away from the fixed roller 51 and runs.
  • the first web 11L or the second web 11R is accumulated.
  • the cutting section 20 is cutting and splicing either the first web 11L or the second web 11R, that is, when no web is being supplied to the downstream line, the movable roller 52 approaches the fixed roller 51.
  • the web is fed to the downstream line by a driving means (not shown).
  • a splicing method that uses the splicing device 10 configured as described above to continuously feed the first and second webs 11L and 11R will be described.
  • the first web 11L is used, and a case will be described in which the second web 11R, which is a spare web, is joined to the first web 11L.
  • the first web 11L is moved along the production (processing) line downstream of the storage section 50 along the route while the tension and running speed of the first web 11L are controlled by the drive roller 15L and the tension control section 40.
  • the first and second cutters 21L and 21R of the cutting section 20 and the first pad 31L are spaced apart from the first and second webs 11L and 11R of the pass line.
  • the storage unit 50 is in a state where the movable roller 52 is the most distant from the fixed roller 51, and the first web 11L in use is stored. Furthermore, the starting end of the second web 11R is suction-held by the second pad 31R.
  • the remaining amount detection section 14L detects that the remaining amount of the first web 11L has become less than a predetermined amount
  • the first winding section 12L and the left drive roller 15L stop the first web 11L from running. Stop.
  • the storage section 50 moves the movable roller 52 in a direction approaching the fixed roller 51 to remove the wound web. Continue to feed the web to the downstream side.
  • the first pad 31L of the splice portion 30 attracts and holds the first web 11L, which is not running. Then, the first cutter 21L of the cutting section 20 moves in a direction approaching the first web 11L held by the first pad 31L, and cuts the first web 11L, as shown in FIG. 11A. As shown in FIG. 11B, the first pad 31L holding the cut first web 11L and the second pad 31R holding the second web 11R move toward each other and touch the first web 11L. The starting end of the spare second web 11R is joined via an adhesive tape.
  • the drive roller 15R on the right side in FIG. 10 starts conveying the second web 11R. Further, the accumulation section 50 moves the movable roller 52 in a direction away from the fixed roller 51 and starts accumulating the second web 11R.
  • the first web 11L before being attracted by the first pad 31L is in a non-parallel state that is inclined with respect to the attraction surface of the first pad 31L. Therefore, when the first pad 31L adsorbs the first web 11L, wrinkles are likely to occur in the first web 11L.
  • this splicing device 10 overlaps the starting end S (FIG. 7B) of the waiting web 11R with the terminal end E (FIG. 7B) of the preceding web 11L, thereby splicing the web.
  • It is a splicing device that joins each other, and includes a pair of left and right first and second units U1 and U2 and first and second receiving portions 22L and 22R in the center.
  • the pair of first and second units U1 and U2 have a structure that is plane symmetrical (mirror symmetrical) to each other, and the devices such as actuators that drive each unit are also horizontally symmetrical. It is located in
  • the first and second units U1, U2 alternately stand upright and convey the first and second webs, respectively.
  • the second and first units U2 and U1 are configured so that they can be alternately tilted and opened to set the starting ends of the second and first webs.
  • the first unit U1 is composed of the first supply roll 5L, the first cover 23L (FIG. 7A), the first cutter 21L, the first pad 31L, and the first rotating frame 2L.
  • a second unit U2 is configured by the second supply roll 5R, second cover 23R (FIG. 7A), second cutter 21R, second pad 31R, and second rotating frame 2R.
  • the other of the first or second covers 23L, 23R is separated from the other of the first or second receiving parts 22L, 22R in FIG. 6, and the other of the first or second units U1, U2 is set in an open state. It is configured so that it can be
  • the first and second covers 23L and 23R may be set to face the first and second receiving portions 22L and 22R, respectively. It is configured so that it can be done.
  • the fixed frame 1 supports the first receiving part 22L and the second receiving part 22R in a fixed state.
  • the first rotation frame 2L supports the first supply roll 5L, the first cover 23L, the first cutter 21L, and the first pad 31L.
  • the second rotating frame 2R supports the second supply roll 5R, second cover 23R, second cutter 21R, and second pad 31R.
  • the first rotation frame 2L is moved around the first hinge 3L by the first actuator so that the first supply roll 5L is separated from the second supply roll 5R and the first rotation frame 2L is opened. 4L rotates.
  • the second rotation frame 2R is rotated around the second hinge 3R so that the second supply roll 5R is separated from the first supply roll 5L and the second rotation frame 2R is opened. 2 actuator 4R rotates.
  • the present splicing apparatus 10 includes a first pass line 1L in which the first web 11L is conveyed from the first supply roll 5L in FIG. It includes a second pass line 1R along which the second web 11R is conveyed.
  • the first cutter 21L extends obliquely across the width direction of the first web 11L on the first pass line 1L.
  • the second cutter 21R also extends obliquely across the width direction of the second web 11R on the second pass line 1R. Note that the first cutter 21L and the second cutter 21R are inclined in the same direction.
  • the first pad 31L extends obliquely and parallel to the first cutter 21L downstream of the first cutter 21L, and attracts and holds the terminal end E of the first web 11L in FIG. 7B.
  • the second pad 31R also extends obliquely and parallel to the second cutter 21R downstream of the second cutter 21R, and holds the starting end S of the second web 11R in FIG. 7A.
  • both webs are sandwiched and joined to the first pad 31L.
  • the first pad 31L and the second pad 31R face each other in the same direction and at the same angle so that they can put their palms together.
  • the first receiving portion 22L receives the blade of the first cutter 21L when the first cutter 21L cuts the first web 11L.
  • the second receiving portion 22R receives the blade of the second cutter 21R when the second cutter 21R cuts the second web 11R.
  • a first pass line 1L is set between the first receiving portion 22L and the first cutter 21L in FIG. 7A.
  • a second pass line 1R is set between the second receiving portion 22R and the second cutter 21R.
  • the first cover 23L prevents the first web 11L from contacting the first cutter 21L when the first cutter 21L is retracted to the non-cutting position P of the first web 11L.
  • the second cover 23R prevents the second web 11R from contacting the second cutter 21R when the second cutter 21R is retracted to the non-cutting position P of the second web 11R.
  • the first pass line 1L is formed such that the first web 11L passes between the first cover 23L and the first receiving portion 22L.
  • a second pass line 1R is formed such that the second web 11R passes between the second cover 23R and the second receiving portion 22R.
  • the present splicing device 10 is configured so that the discharge roll is arranged so that the first pass line 1L along which the first web 11L in FIG. 1 passes and the second pass line 1R along which the second web 11R in FIG. 6 passes are parallel to each other (see FIG. 7A).
  • a displacement device 60 is provided, which is configured to be able to displace six positions.
  • the first pass line 1L and the second pass line 1R are both set parallel to each other along a vertical plane.
  • the displacement device 60 in FIG. 1 is constituted by, for example, a hydraulic cylinder, and can selectively arrange the discharge roll 6 in a first roll position P1 in FIG. 1 and a second roll position P2 in FIG. 6.
  • the discharge roll 6 in FIG. 1 is in the first roll position P1
  • the first web 11L passes along the first pass line 1L along one vertical plane.
  • the discharge roll 6 in FIG. 6 is at the second roll position P2
  • the second web 11R passes along a second pass line 1R along another vertical plane.
  • the first web 11L in FIG. 1 extends from the first supply roll 5L to the first pad 31L along a plane parallel to the suction surface 31f (FIG. 7A) of the first pad 31L. Therefore, when the first pad 31L adsorbs the first web 11L, wrinkles are less likely to occur in the first web 11L.
  • the first cutter 21L and the second cutter 21R shown in FIGS. 7A and 7B may both have a main blade 21M and a sub blade 21S.
  • Each of the blades 21M and 21S protrudes through the through hole 23O of the first or second cover 23L, 23R until it reaches the through hole 22O of the first or second receiving portion 22L, 22R.
  • a storage section (not shown) similar to the storage section 50 of the above-mentioned known example may be provided downstream of the discharge roll 6 in FIG. 1. Further, a processing line downstream of the storage section may be provided with a well-known stretching device 7 shown in FIGS. 8A and 8B that performs stretching on the first web 11L and/or the second web 11R.
  • the joining of the web is performed in a first conveyance process in which the first web 11L is conveyed from the first supply roll 5L in FIG. This is performed between the second conveyance step in which the second web 11R is conveyed along the second pass line 1R along the discharge roll 6.
  • web splicing will be described as a representative case in which the second web 11R is spliced after the first web 11L in FIG. 1 is conveyed.
  • the end of the first web 11L on the first pass line 1L (FIG. 1) is diagonally crossed in the width direction of the first web 11L.
  • a first cutting step of cutting the second web 11R and a second cutting step of cutting the starting end of the second web 11R on the second pass line 1R (FIG. 6) diagonally across the width direction of the second web 11R are performed. Ru.
  • the first pad 31L suction-holds the end portion E of the first web 11L on the first pass line 1L.
  • the web is spliced as follows.
  • the second unit U2 is opened as shown in FIG. 1 while the first web 11L is being transported along the first pass line 1L in the first transport process shown in FIG.
  • a holding step is performed in which the starting end S (FIG. 7A) of the second web 11R is sucked and held by the second pad 31R.
  • An adhesive tape is provided on the starting end S on the side facing the first web 11L.
  • the second unit U2 is closed. Thereafter, when the remaining amount of the first web 11L being conveyed becomes less than a predetermined amount, the movement (conveyance) of the first web 11L on the first pass line 1L is stopped.
  • the web accumulated in the accumulation section 50 is released. Thereafter, the first web 11L is suctioned and held by the first pad 31L in FIG. 7A, and the first web 11L is cut by the first cutter 21L in FIG. 7A. After cutting the first web 11L, the terminal end E of the first web 11L and the starting end S of the second web 11R in FIG. 7B are sandwiched between the first pad 31L and the second pad 31R, and the terminal end E and the starting end are A first overlapping process of overlapping the parts S and a first joining process of joining the starting end S and the terminal end E and joining the second web 11R to the first web 11L are performed. Specifically, the first overlapping process and the first joining process are performed as follows.
  • the second pad 31R is displaced toward the first pad 31L, so that the first While the adsorption surface 31f of the pad 31L and the first web 11L on the first pass line 1L remain parallel to each other, both webs are sandwiched between the first pad 31L and the second pad 31R, and the first A splicing process is performed.
  • the suction surfaces of the first and second pads are always along a vertical plane, parallel to each other, and also parallel to the web on the first or second pass line.
  • Both pads 31L and 31R reciprocate along a horizontal axis perpendicular to the webs, and sandwich both webs while maintaining the above-mentioned geometrical relationship with the webs.
  • an adhesive is provided at the starting end S colored in gray in FIG. 9A, and both webs are joined by sandwiching the webs.
  • the discharge roll 6 in FIG. 4 is moved to the first pass line 1R in FIG.
  • a first displacement step of displacing the roll from the roll position P1 to the second roll position P2 in FIG. 5 is executed. Note that, prior to this first displacement step, the suction of each pad in FIG. 7B is released, and the second pad 31R returns to the original position where it was evacuated from the second pass line.
  • the discharge roll 6 is arranged at the first roll position P1 so as to hold the first web 11L on the first pass line 1L.
  • the discharge roll 6 is arranged at the second roll position P2 so as to hold the second web 11R on the second pass line 1R. In this way, since each web is held on each pass line along the vertical plane, the web is always parallel to the suction surface 31f of each pad, and therefore there is no risk of wrinkles occurring in the web during suction.
  • the discharge roll 6 is moved from the second roll position P2 to the first pass line in FIG. 1 so as to change from the second pass line 1R in FIG.
  • a second displacement step of displacing the roller to the roll position P1 again is executed.
  • the discharge roll 6 is arranged at the second roll position P2 so as to hold the second web 11R in FIG. 6 on the second pass line 1R. Thereafter, in the first conveyance step of FIG. 1, the discharge roll 6 is arranged at the first roll position P1 so as to hold the first web 11L on the first pass line 1L.
  • the splicing device 10 is not limited to the order of the cutting process and the splicing process, as long as the webs can be spliced together in the end.
  • the splicing apparatus 10 may perform the cutting process and the joining process at the same time, or may cut the web after the splicing process.
  • a splicing process may be performed after the cutting process.
  • it may be preferable to suction and hold the end of the web with a pad. For example, immediately after the first web 11L in FIG. 7A stops on the first pass line 1L, the first pad 31L sucks and holds the part that will become the terminal end E of the first web, and then the first web 11L in FIG. It is preferable to cut the first web 11L with the cutter 21L.
  • the first web 11L is maintained on the first pass line 1L because the discharge roll 6 in FIG. 1 is in the first roll position. That is, from the first supply roll 5L to the discharge roll 6, the first web 11L extends along a plane parallel to the suction surface of the first pad 31L. Therefore, the first web 11L is always arranged parallel to the suction surface 31f of the first pad 31L in FIG. can be prevented from occurring.
  • the timing of movement of the discharge roll 6 may be any timing after adsorption of the preceding web. For example, after adsorbing the portion that will become the terminal end E of the first web 11L in FIG. 7A, the displacement from the first roll position P1 to the second roll position P2 in FIG. 1 occurs before cutting the first web 11L. You may let them. Further, after this suction, the discharge roll 6 may be displaced before the overlapping and splicing process shown in FIG. 7B.
  • the first pad 31L has already adsorbed and held the first web 11L, and it is considered that there is a low possibility that wrinkles will occur in the terminal end E.
  • a first receiving portion 22L that receives the blade of the first cutter 21L when the first cutter 21L cuts the first web 11L; further comprising a second receiving portion 22R that receives the blade of the second cutter 21R when the second cutter 21R cuts the second web 11R;
  • the first pass line 1L is set between the first receiving part 22L and the first cutter 21L
  • the second pass line 1R is set between the second receiving portion 22R and the second cutter 21R.
  • the web can be accurately cut into a desired shape.
  • a first cover 23L that prevents the first web 11L from contacting the first cutter 21L when the first cutter 21L is retracted to a non-cutting position P of the first web 11L; further comprising a second cover 23R that prevents the second web 11R from contacting the second cutter 21R when the second cutter 21R is retracted to the non-cutting position P of the second web 11R;
  • the first pass line 1L is formed such that the first web 11L passes between the first cover 23L and the first receiving part 22L
  • the second pass line 1R is formed such that the second web 11R passes between the second cover 23R and the second receiving portion 22R.
  • first and second pass lines are thus formed between the receiving portion and the cover, the pass lines of the pair of webs are stabilized.
  • first and second covers 23L and 23R can be set to face the first and second receiving parts 22L and 22R, respectively.
  • a fixed frame 1 that supports the first receiving part 22L and the second receiving part 22R in a fixed state; a first rotating frame 2L that supports the first supply roll 5L, the first cover 23L, the first cutter 21L, and the first pad 31L; a second rotating frame 2R that supports the second supply roll 5R, the second cover 23R, the second cutter 21R, and the second pad 31R; a first actuator 4L that rotates the first rotating frame 2L around a first hinge 3L so that the first supply roll 5L separates from the second supply roll 5R and the first rotating frame 2L opens; and, a second actuator 4R that rotates the second rotation frame 2R around a second hinge 3R so that the second supply roll 5R separates from the first supply roll 5L and the second rotation frame 2R opens; It further comprises:
  • a first unit U1 is configured by the first supply roll 5L, the first cover 23L, the first cutter 21L, the first pad 31L, and the first rotating frame 2L
  • a second unit U2 is configured by the second supply roll 5R, the second cover 23R, the second cutter 21R, the second pad 31R, and the second rotation frame 2R, one of the first or second covers faces one of the first or second receiving parts 22L, 22R, and one of the first or second units U1, U2 is closed; The other of the first or second covers is separated from the other of the first or second receiving parts, and the other of the first or second units U1, U2 can be set in an open state. There is.
  • the first pass line 1L and the second pass line 1R are both set parallel to each other along a vertical plane.
  • the web can be stably attracted and cut, and wrinkles can be reliably prevented.
  • the first cutter 21L and the second cutter 21R both have a main blade 21M and a sub blade 21S.
  • the web can be cut reliably.
  • a stretching device 7 for stretching the first web 11L and/or the second web 11R may be provided downstream of the discharge roll 6.
  • the present splicing method preferably further includes a terminal end holding step of holding the terminal end E of the first web 11L with the first pad 31L, In the terminal end holding step, the discharge roll 6 is arranged at the first roll position P1 so that the first web 11L is maintained on the first pass line 1L, In the second conveyance step, the discharge roll 6 is arranged at the second roll position P2 so that the second web 11R passes through the second pass line 1R.
  • each web is along its own path line, so that each web and the surface (suction surface) of each pad are in a parallel state facing each other. Therefore, there is no risk of wrinkles occurring in the web during suction.
  • the second pad 31R is displaced toward the first pad 31L, so that the While the suction surface 31f of the first pad 31L and the first web 11L on the first pass line 1L remain parallel to each other, both webs are sandwiched between the first pad 31L and the second pad 31R. It will be done.
  • the terminal end E of the second web 11R and the starting end S of the first web 11L are sandwiched between the first pad 31L and the second pad 31R, and these terminal ends are a second overlapping step of overlapping E and the starting end S; a second joining step of joining the starting end S and the ending end E and joining the first web 11L to the second web 11R;
  • the discharge roll 6 is moved to the second roll position P2 so as to change the web pass line from the second pass line 1R to the first pass line 1L. and a second displacement step of displacing the roll from the first roll position P1 to the first roll position P1.
  • Wrinkles are less likely to occur in the web when the first web is joined to the second web.
  • the method further includes a terminal end holding step of holding the terminal end E of the second web 11R with the second pad 31R,
  • the discharge roll 6 is arranged at the second roll position P2 so that the second web 11R is maintained on the second pass line 1R,
  • the discharge roll 6 is arranged at the first roll position P1 so that the first web 11L passes over the first pass line 1L.
  • each web and the suction surface of each pad are in a parallel state facing each other before and after joining each web, and therefore there is no possibility that wrinkles will occur in the web during suction.
  • the first pad 31L is displaced toward the second pad 31R, so that the While the suction surface 31f of the second pad 31R and the second web 11R on the second pass line 1R remain parallel to each other, both webs are sandwiched between the first pad 31L and the second pad 31R. It will be done.
  • the present invention can be applied to splicing webs such as diaper-type and pant-type disposable wearing articles.

Landscapes

  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne un dispositif de raccordement, permettant de superposer une section d'extrémité de départ S d'une bande en attente 11R sur une section d'extrémité terminale E d'une bande principale 11L et de relier les bandes, qui comprend : un premier patin 31L qui s'étend obliquement et parallèlement à un premier dispositif de coupe 21L et maintient la section d'extrémité terminale E de la première bande 11L en aval du premier dispositif de coupe 21L ; un second patin 31R qui s'étend obliquement et parallèlement à un second dispositif de coupe 21R et maintient la section d'extrémité de départ S d'une seconde bande 11R en aval du second dispositif de coupe 21R et qui joint les deux bandes, les bandes étant intercalées entre le premier patin 31L et le second patin 31R ; et un dispositif de déplacement 60 qui est conçu de façon à pouvoir déplacer la position d'un rouleau de décharge 6 de telle sorte qu'une première ligne de passage 1L de la première bande 11L et une seconde ligne de passage 1R de la seconde bande 11R sont parallèles l'une à l'autre.
PCT/JP2023/030874 2022-09-05 2023-08-28 Dispositif et procédé de raccordement WO2024053441A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-140962 2022-09-05
JP2022140962 2022-09-05

Publications (1)

Publication Number Publication Date
WO2024053441A1 true WO2024053441A1 (fr) 2024-03-14

Family

ID=90191108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/030874 WO2024053441A1 (fr) 2022-09-05 2023-08-28 Dispositif et procédé de raccordement

Country Status (1)

Country Link
WO (1) WO2024053441A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311694A (en) * 1976-07-19 1978-02-02 Yoshitsuka Seiki Kk Automatic continuous film feeder
JP2006143351A (ja) * 2004-11-16 2006-06-08 Shin Nippon Koki Co Ltd フィルム接合装置
WO2016002530A1 (fr) * 2014-06-30 2016-01-07 株式会社瑞光 Système de distribution de feuilles et procédé de distribution de feuilles utilisant celui-ci
JP2017075036A (ja) * 2015-10-15 2017-04-20 株式会社テクノスマート ウエブの継ぎ合わせ方法及びウエブの継ぎ合わせ装置
JP2017160057A (ja) * 2012-05-23 2017-09-14 株式会社ニコン 基板つなぎ替え装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311694A (en) * 1976-07-19 1978-02-02 Yoshitsuka Seiki Kk Automatic continuous film feeder
JP2006143351A (ja) * 2004-11-16 2006-06-08 Shin Nippon Koki Co Ltd フィルム接合装置
JP2017160057A (ja) * 2012-05-23 2017-09-14 株式会社ニコン 基板つなぎ替え装置
WO2016002530A1 (fr) * 2014-06-30 2016-01-07 株式会社瑞光 Système de distribution de feuilles et procédé de distribution de feuilles utilisant celui-ci
JP2017075036A (ja) * 2015-10-15 2017-04-20 株式会社テクノスマート ウエブの継ぎ合わせ方法及びウエブの継ぎ合わせ装置

Similar Documents

Publication Publication Date Title
JPH10501785A (ja) ウェブ材料のリールの自動交換装置およびその方法
US6547909B1 (en) Flying web splice apparatus and method
KR100488745B1 (ko) 복합 웹 형성 장치 및 방법
KR101115813B1 (ko) 릴교체의 단계에 있어서 풀린 재료에 대한 일시적 축적부재를 가진 웹형상 재료의 릴용 언와인더 장치와 그 관련방법
JP3396245B2 (ja) コルゲートマシンのオーダーチェンジ方法及び装置
JP2002536272A (ja) ウエブ・リワインダー切り離しトランスファ・アセンブリ
JP4523638B2 (ja) 少なくとも１つの材料ウェブもしくは少なくとも１つのウェブ条片を折り装置に引き込むための装置
JPH0550417B2 (fr)
KR101489313B1 (ko) 흡수성 물품의 제조 방법 및 흡수성 물품의 제조 장치
WO2024053441A1 (fr) Dispositif et procédé de raccordement
JP4316414B2 (ja) スプライス装置及びスプライス方法
JP3653030B2 (ja) 紙継装置，コルゲートマシン及び紙送方法
JP4880383B2 (ja) 紙継ぎ装置
TWI742116B (zh) 用於轉換兩層式紙巾織物的紙巾轉換機器的饋送單元
US5427639A (en) Method and device for splicing narrow strips
JP3891795B2 (ja) 紙継ぎ装置における紙継ぎ準備方法
JP3662241B2 (ja) ２つの材料ウェブをつなぐための装置
JP3504413B2 (ja) スプライサ
JP2010036990A (ja) ウェブ巻取り装置及び方法
JP7387162B2 (ja) スプライサー及びフィルム接合方法
JPS6039618B2 (ja) ロ−ル巻仕舞端接着装置
JP3905645B2 (ja) フィルム張付装置
JP2000280345A (ja) シート状部材の製造方法および装置
JPH01220668A (ja) ウエブ連続接合切替え装置
JP3586585B2 (ja) ウェブ継ぎ装置及び継ぎウェブ生成方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23862980

Country of ref document: EP

Kind code of ref document: A1