Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F13/00—Common details of rotary presses or machines
  • B41F13/02—Conveying or guiding webs through presses or machines
  • B41F13/03—Threading webs into printing machines

Definitions

• the invention relates to a method and devices for pulling in and transferring a start of a web according to claims 1, 12, 13, 18 or 20.
• JP-GM 05-26367 has disclosed a device for coupling and uncoupling a device for fastening a start of a web to a traction means.
• EP 0 355026 A2 discloses cutting a web into partial webs and connecting these partial webs with web feed devices in order to feed them to their respective destination.
• DE 41 30678 A1 shows a device for pulling in a beginning of a material web, in which the material web is coupled to a traction means by means of a Velcro strip.
• the invention has for its object to provide a method and apparatus for pulling in and transferring a start of a web.
• the advantages that can be achieved with the invention are, in particular, that there is no need for a frictional connection acting in the direction of transport of the traction means between the traction means and the device for fastening a start of the path.
• the device for fastening a web start can be used continuously, regardless of the wear of the coupling elements.
• the device for fastening a beginning of the web can be pulled out of a coupling body fastened to the traction means by forces in or against the transport direction of the traction means.
• Figures 1 to 3 each have a traction device with a coupling body attached to it, which has a coupling hole, into each of which a coupling pin is inserted, the cross sections of coupling pin and coupling hole being adapted to one another, with different cross sections serving as an exemplary embodiment;
• Fig. 4 shows a coupling body with an inserted coupling bolt, which has the shape of a has a straight, cuboid or rectangular prism, the diagonal of the cross section of the coupling pin pointing in the running direction of the traction means;
• Fig. 5 shows a parking station in the area of a web retraction path in a
• FIG. 6 shows a front view of the parking station according to FIG. 5;
• FIG. 7 shows a transfer station for transferring and taking over devices for fastening the beginning of the path, which have coupling pins, from a coupling body of a first traction means to coupling means of further traction means;
• FIG. 8 shows a front view of the transfer station according to FIG. 7;
• Fig. 9 is a schematic representation of "attaching" several elements
• Partial web pull-in tips of a “wide” web on coupling devices assigned to them on a single traction means Partial web pull-in tips of a “wide” web on coupling devices assigned to them on a single traction means.
• a drivable endless or finite traction means 01 for. B. laterally, by means of fastening pin 04; 06 attached at least one dome body 03.
• a plurality of coupling bodies 03; 05 - seen in the longitudinal axis direction of the traction means, be arranged at a distance c from each other.
• the distances between the dome bodies do not have to be the same, in particular not when several partial web starts, e.g. B. partial paper web beginnings, e.g. B. in the form of pull-in tips 81; 82; 83; 84, from a web 69, e.g. B. a "wide" web 69 by the longitudinal cutting generated partial web 71; 72; 73; 74, for example partial webs 71; 72; 73; 74 should.
• the devices 09; 20 for attaching the paper start are connected one behind the other attached at least one of each of the spaced-apart coupling bodies 03; 05.
• attached to the traction means 01 begins with it the not yet longitudinally cut paper web 69 or the already longitudinally cut partial paper webs 71; 72; 73; 74 pulled by the traction means 01, If the paper web 69 has not yet been cut longitudinally, a number of rotating longitudinal cutting knives 76, 77, 78 a fixed to the frame are used n predetermined location along the paper web or partial paper web feed paths is placed on the paper web 69 in such a way that it in each case at the end of the partial paper web widths drawing-in tips 81; 82; 83; 84 begin their longitudinal section without the already formed or attached pull-in tips 81; 82; 83; 84 damage.
• the retracting tips 81; 82; 83; 84 have an edge reinforcement 96, z. B. adhesive tapes, and are each via extension tapes 91; 92; 93; 94 is attached to the device for attaching the beginning of paper 09 assigned to it, which in turn is hooked into the dome holes of the various dome bodies (03, 05) spaced apart from one another.
• the beginnings "flags" or pull-in tips of the partial webs 71; 72; 73; 74 move from a parking station 22 to one or more transfer stations 46 arranged one behind the other along the pull-in path (s).
• common for all partial webs 71; 72; 73; 74 is the longitudinal section or only the respective partial paper web 71; 72; 73; 74 is produced in front of a transfer station 46 to be approached by longitudinal cutting, which is then to be transferred to another traction device.
• the partial paper webs 71; 72; 73; 74 then arrive at the transfer station 46 assigned to them. There, one or more partial paper web (s) 71; 72; 73; 74 of their associated dome bodies 03; 05 passed on a traction device 01 to other coupling devices or are taken over by them.
• traction means z. B Attached to other means of traction, the partial webs 71; 72; 73; 74 on the traction means z. B. directly or via turning bar to the associated formers or to cross-cutting devices of a sheave.
• a traction means z. B the most diverse types of chains (round link, gall sleeve, toothed, steel pin chains, etc.), of belts (toothed belts) but also ropes can be used. Traction devices that can be moved in three directions are favorable.
• Such traction means is e.g. B. known from DE 41 10668 C1.
• the dome body 03 is, for. B. designed as a block of metal or plastic. It is provided with a coupling hole 07, which, for. B. is designed as a through hole.
• the longitudinal axis 12 of the coupling hole 07; 25 stands on a horizontal plane along the longitudinal axis of the traction means 01 perpendicularly or approximately perpendicularly or cuts them.
• the dome body 03; 05 is for example laterally by means of a number of fastening pins 04; 06 attached to the traction device 01.
• the coupling hole 07; 25 can have virtually any type of cross section.
• the coupling hole 07; 25 each, for example, circular, square or rectangular cross section.
• the coupling hole 07; 25 serves to receive a coupling bolt 08; 15. Its cross-sectional shape is based on the cross-sectional shape of the coupling hole 07; 25 adjusted. In terms of dimensions, they are both adapted to each other so that there is a slight sliding fit.
• a fall protection 16 for the coupling pin 08; 15 provided in the dome 03; 05. It is arranged so that one of its ends in the cross section of the coupling hole 07; 25 resiliently protrudes.
• the fall protection 16 could of course also be designed differently.
• a vertical insertion slot 11 with an insertion slot width s cuts through one Extension of the diameter of the longitudinal axis 12 of the dome body 03; 05 completely and ends in the coupling hole 07; 25.
• the position of the insertion slot entrance can be determined over a wide range. It is thus possible to arrange it in the range from in to against the direction of travel of the traction means 01.
• the insertion slot width is chosen so that a in the coupling hole 07; 25 inserted coupling bolt 08; 15 in the lateral direction (with reference to the traction means 01 designed to be flat in FIG. 1) not from the coupling hole 07; 25 but can only be removed up and down. Forces in the lateral direction from the traction means 01 can therefore be exerted by the coupling body 03; 05 on the coupling pin 08; 15 and from this to a device attached to it 09; 20 for attaching the beginning of the paper.
• the coupling bolt 08; 15 and the arm 17 can be made of metal or plastic.
• the facility 09; 20 for attaching the beginning of the paper consists in its simplest form of an arm 17 with z. B. rectangular cross section.
• the paper web start or partial paper web start can then be attached directly to the arm 17.
• the thickness of the arm 17 is narrower than the insertion slot width of the insertion slot 11, so that the arm 17 can easily be pushed into and out of the insertion slot 11.
• traction means 01 are known from z. B. sprockets driven with chain-like traction means, toothed disks with toothed belt-like traction means and friction gear with rope-like traction means.
• the traction means 01; 53 is each in a known frame-fixed guide 18; 52 guided along mobile. 7 and 8, the chain-like traction means 01; 53 and its leadership 18; 52 shown.
• a parking station 22 for a device 09; 20 attached to secure the beginning of the web.
• Mounting leg 26 and a lower mounting leg 27 are connected.
• the guide 18 designed as a profile strip is fastened on the lower side of the upper mounting leg 26, the guide 18 designed as a profile strip is fastened.
• the traction means 01 in the exemplary embodiment as
• Roller chain executed, arranged to move back and forth.
• the parking device 29 is fastened in the form of a lug 31.
• This lug 31 has in its end remote from the base plate a coupling hole 32 designed as a through hole with a securing device 16 and an insertion slot 30 for the arm 17 of the device 09 for attaching the beginning of the paper.
• the type and function of the safety device 16 have already been described above.
• the coupling hole 32 has the same function, shape and dimensions as the coupling hole 07.
• the coupling hole 32 is aligned so that in the case of a stopped above the lug 31 coupling body 03 of the traction means 01, the coupling hole 07 of the coupling body 03 and that Coupling hole 32 of the lug 31 are aligned.
• the insertion slot 30 on the lug 31 preferably has the same dimensions and the same position in relation to the movement path of the insertion slot 11 of the dome body 03. This ensures that as soon as the underside of the slot 44 of the dome body 03 by means of the traction means 01 exactly the top side 43 of the lug 31 is driven, free passage of both insertion slots 11 and 30 of the arm 17 is possible. This is also automatically the case when the traction means 01 moves and finally stops the coupling body 03 such that its coupling hole 07 comes to lie exactly above the coupling hole 32 of the bracket 31 and above the guide bore 36 and the traction device 01 is stopped. Between the coupling holes 07; 32 and a guide bore 36 of a guide bush 33 fixed to the frame, free passage and possibility of movement for the coupling bolt 08 or for a drive-in head 37 is then ensured.
• actuators 39; 63 are provided, which generate a linear movement.
• so-called "intermediate position linear modules" 45 and 50 can be used. They allow a linear stroke with, for example, four intermediate positions.
• double-acting cylinders are used as actuators 39, 63 in the exemplary embodiments described here. They are attached to mounting legs 26, 27 of a U-shaped holder 23. Another type of attachment is of course also possible.
• a guide bush 33 with a flange 34 is provided in a bore in the front end of the lower mounting leg 27.
• the guide bore 36 of the guide bush 33 serves as a guide for a driving head 37.
• the driving head 37 is, for. B. attached to the end of a one-sided piston rod 38 of a double-acting cylinder 39.
• the double-acting cylinder 39 is attached to the flange 34 at the bottom. Via a connection 41 on the rod side and a connection 42 on the piston side of the cylinder 39, a pressure fluid is supplied or discharged from a pressure fluid source to the cylinder 39 via lines (pipes or hoses) with the interposition of a switchable directional valve.
• the coupling pin 08 is pushed manually or fully automatically into the coupling hole 32 and the arm 17 into the insertion slot 43 of the bracket 31 and held in place in the coupling hole 32 via the securing device 16.
• the coupling body 03 attached to the traction means 01 is / are positioned by means of traction means 01 such that the coupling holes 07; 32 and the associated insertion slots 11; 30 of dome body 03 and lug 31 lie exactly opposite (over, or next to, or under each other).
• the driving-in head 37 is in its retracted position (rest position) in the guide bore 36 (FIG. 5).
• By feeding z. B. of compressed air via the port 42 in the cylinder 39 moves a piston 44 of the cylinder 39 with its piston rod 38, the driving head 37 into the coupling hole 32 of the bracket 31.
• the driving head 37 presses the coupling pin 08 together with its arm 17 against the resistance the securing device 16 from its rest positions in the coupling hole 32 or insertion slot 30 in the coupling hole 32. Finally, they arrive in the coupling hole 07 or in the insertion slot 11 of the coupling body 03 of the stationary traction means 01 from which they are to be conveyed further.
• the completed and correct transfer of the coupling pin 08 with the device 09 for attaching the beginning of the paper from a parking station 22 to a traction means 01 is monitored by means of sensors (not shown) and a corresponding electronic circuit. Provides the electr. Circuit determines that the coupling pin 08 has been properly handed over, so the electr. Circuit generates an enable signal. This release signal is sent to an electr. Control for driving the motors to drive the drive motor (s) along the Guide 18 for the traction device 01.
• a plurality of frame-fixed, speed-controlled and position-controlled motors in general, electric motors but also linear motors are provided as the drive for the pull-in means of the parking and transfer stations.
• speed-controlled and position-controlled motors are used.
• the motors have pinions on the pulling means 01; 53, e.g. B. chain links of chains or engage in the teeth of the toothed belt.
• the drives are of course also synchronized with the web speed at which the webs attached to the devices 09 are to be moved (pulled / pushed) through the machine.
• devices 09 for attaching the beginning of the paper it is not only possible to use devices 09 for attaching the beginning of the paper to the parking stations 22; 29 to park and hand over to a selected traction means 01.
• transfer one or more devices 09 for attaching the beginning of the paper from a first traction means either to a second or third or fourth etc. and back.
• one or more transfer stations 46 are arranged fixed to the frame along the feed path. A plurality of paper feed paths of the paper webs or partial paper webs traverse the effective range of the driving stamps of the actuators of the transfer stations 46.
• Base plate 24 with an upper mounting leg 26 and a lower mounting leg
• traction means 01; 53 designed as roller chains in the exemplary embodiment, arranged to move back and forth.
• one or more coupling bodies 03; 55 by means of, - in the exemplary embodiment, the roller chains 01 and 53, - are moved into and stopped in the transfer stations 46.
• the traction means 01; 53 are stopped so that the coupling holes 07; 55 and the insertion slots 11; 54 the dome body 03; 55 are exactly opposite or on top of each other, ie they are aligned.
• two switchable actuators 39; 63 for driving one drive-in head 37; 61 provided at the transfer stations 46. Like the actuator 39 at the parking station 22, they have the task of driving the driving heads 37; 61 through the intended movement path or movement paths of the coupling holes 07; 56, in particular the movement path (s) of the center (s) coupling holes 07; 56 to move back and forth.
• the path of movement of the driving heads 37; 61 In general, the coupling holes 07; 56 take place, for. B. in a vertical or vertical direction to the direction (s) of movement of the coupling holes 07; 56 during their stay in the parking or transfer stations 22; 46.
• the aforementioned actuators 39; 63 therefore have the task of driving in / through a coupling hole 07; 56 of a preselected dome body 03; 25 to move one or more coupling bolts 08 from a coupling body 03; 25 to move to another.
• the most varied types of actuators 39; 63 apply; z. B: cylinder or e.g. proportional directional control valve or z. B. so-called "intermediate position linear modules" type HMP ... Z ... from FESTO AG & CO.
• a guide bushing 57 with flange 58 is thus provided in a bore in the front end of the upper mounting leg 26.
• a guide bore 60 of the guide bushing 57 serves as a guide for a drive-in head 61.
• a pressure fluid is supplied or discharged to the cylinder 63 via lines (pipes or hoses) with the interposition of a switchable directional valve from a pressure fluid source.
• the driving-in head 61 is in its retracted position (rest position) in the guide bore 60 (FIGS. 7 and 8).
• the piston 68 of the cylinder 63 with its piston rod 62 moves the driving head 61 into the coupling hole 56 of the coupling body 55.
• the driving head 61 presses the coupling pin 55 together with its arm 07; 17 against the resistance of a safety device 16 in a coupling hole of a preselected coupling body 03 on a precisely stopped traction means 01; 56 in a selected paper or partial web path.
• a second actuator 39 is provided, the securing device 16 from the coupling hole 56 or the insertion slot 54 into the coupling hole 07 or into the insertion slot 11 of an adjacent coupling body 03 of the next or next but one etc. adjacent stationary traction means 01 , depending on which path and thus which dome body was selected to take over the device 09 to be transferred.
• the guide bush 33 with flange 34 is provided in the bore in the front end of the lower mounting leg 27.
• the guide bore 36 of the guide bush 33 serves as a guide for the driving head 37.
• the driving head 37 is at the end of the one-sided piston rod 38 double-acting cylinder 39 (second actuator) z.
• the double-acting cylinder 39 is attached to the flange 34 at the bottom.
• a pressure fluid is supplied or discharged to the cylinder 39 via lines (pipes or hoses) with the interposition of a switchable directional valve from a pressure fluid source.
• a plurality of coupling bodies 03 can be positioned so that their coupling holes 07; 56 and their insertion slots 11 are exactly opposite (over, or next to, or under each other).
• the driving-in head 37 is in its retracted position in the guide bore 36 (FIGS. 7 and 8).
• pneumatically driven intermediate position linear module 45 is one of the z. B. three intermediate positions have been selected according to the position of the dome body 03 to be operated.
• the completed and correct handover of the coupling bolt 08 with the device for fastening the paper start from a coupling body 03 to a preselected coupling body 55 is performed e.g. B. monitored by the sensors of the intermediate position linear module, 45 electronic circuit, not shown.
• the drive-in head 37 moves back into its “rest position” and an electrical sensor sends a corresponding signal as soon as the drive-in head 37 is in its position Has reached rest division.
• the electr. Circuit determines that the coupling bolt 08 has been properly handed over and the driving head 37 is in its rest position and generates an electr. Enable signal. This release signal is sent to an electr. Control for driving the motors for driving the drive motor (s) along the guide 18 used around the pulling means 01 entering the transfer station 46; 53 to move from the transfer station 46 to a preselected destination.
• Partial web partial paper web, first partial web, partial paper web, second partial web, partial paper web, third partial web, partial paper web, fourth
• Rip knife first rip knife, second rip knife, third rip knife

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Replacement Of Web Rolls (AREA)
• Advancing Webs (AREA)
• Closed-Circuit Television Systems (AREA)
• Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
• Preliminary Treatment Of Fibers (AREA)

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• 2000
  • 2000-09-06 DE DE10043839A patent/DE10043839C2/de not_active Expired - Fee Related
• 2001
  • 2001-09-05 EP EP01974016A patent/EP1315618B1/fr not_active Expired - Lifetime
  • 2001-09-05 WO PCT/DE2001/003409 patent/WO2002020269A1/fr not_active Ceased
  • 2001-09-05 AU AU2001293660A patent/AU2001293660A1/en not_active Abandoned
  • 2001-09-05 DE DE50114352T patent/DE50114352D1/de not_active Expired - Fee Related
  • 2001-09-05 AT AT01974016T patent/ATE409112T1/de not_active IP Right Cessation

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