EP2305586B1 - Einrichtung zum Führen einer variablen Anzahl von Teilbahnen einer Endlosfolie und Verfahren zum Wechseln einer ersten Anzahl auf eine zweite Anzahl geführter Teilbahnen - Google Patents

Einrichtung zum Führen einer variablen Anzahl von Teilbahnen einer Endlosfolie und Verfahren zum Wechseln einer ersten Anzahl auf eine zweite Anzahl geführter Teilbahnen Download PDF

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Publication number
EP2305586B1
EP2305586B1 EP20100178011 EP10178011A EP2305586B1 EP 2305586 B1 EP2305586 B1 EP 2305586B1 EP 20100178011 EP20100178011 EP 20100178011 EP 10178011 A EP10178011 A EP 10178011A EP 2305586 B1 EP2305586 B1 EP 2305586B1
Authority
EP
European Patent Office
Prior art keywords
shaft
deflection
spreading
guided
web
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.)
Active
Application number
EP20100178011
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2305586A2 (de
EP2305586A3 (de
Inventor
Michael Hartl
Tommy Ober
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.)
Krones AG
Original Assignee
Krones AG
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 Krones AG filed Critical Krones AG
Publication of EP2305586A2 publication Critical patent/EP2305586A2/de
Publication of EP2305586A3 publication Critical patent/EP2305586A3/de
Application granted granted Critical
Publication of EP2305586B1 publication Critical patent/EP2305586B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/34—Modifying, selecting, changing direction of displacement
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • 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
    • B65H2801/81—Packaging machines

Definitions

  • the present invention relates to a device for guiding a variable number of partial webs of a continuous film.
  • the invention relates to a device for guiding a variable number of partial webs of a continuous film, wherein in a first guide region at least one expansion shaft of essentially a first expansion section and a second expansion section and at least two first deflection shafts are provided in a second guide region.
  • the present invention also relates to a method for changing a first number of guided partial webs to a second number of guided partial webs.
  • the invention also relates in particular to a method for changing a first number of guided partial webs to a second number of guided partial webs, in which the first number of partial webs is guided to a spreading shaft of a first guide region, wherein the partial webs are spaced by the expansion shaft.
  • a group of articles with a film section is at least partially enveloped and thus a container of the group and the packaging film is produced.
  • the film sections are usually separated from a continuous film.
  • the continuous film may be a shrink film.
  • a longitudinal cut of the endless foil in the running direction is required, which divides the endless foil into two partial webs (one cutting element) or three partial webs ( two cutting elements) divides.
  • no longitudinal cut is required. Accordingly, more than three partial webs can be processed.
  • the articles and the film pass through a so-called shrink tunnel. Since a certain distance in the shrink tunnel is required between the groups to be shrunk in order to introduce the heat, a spread of the longitudinally cut film webs on a distance measure is necessary and even before the film is wound around the container.
  • a device for guiding a variable number of partial webs of a continuous film is used.
  • obliquely employed film transport waves are used.
  • two obliquely employed shaft sections are used, which together form a spreader shaft. The fact that the sections are mounted or adjusted obliquely to a basic orientation, the two partial webs are guided obliquely or spread on these shaft sections.
  • two obliquely set shaft sections of a spreading shaft are used for the outer part tracks and one "straight" shaft for the middle part track with respect to the basic orientation.
  • the middle partial web can not describe the same film path as the outer partial webs for various reasons.
  • the print marks in the separation station which separates the partial webs into individual foil blanks for the bundles, must arrive again at the same time.
  • the print marks on the partial webs characterize the dimensions of the film blanks.
  • the width of the middle part of the web can vary so much that the width of the central film transport shaft would have to be changed, which would result in a considerable technical effort and a large changeover from two-lane to three-lane processing.
  • the film would form wrinkles, if the film would be promoted in one-lane processing, which should also be possible on the now inevitable columns of the film guide.
  • the two adjacent partial webs to be spread take a different film path after the longitudinal cut than in one-lane processing.
  • the film path in the case of two-lane processing comprises a spreading shaft in a first guide region for spreading the two partial webs, as already described above.
  • the middle sub-web takes the same route over a second guide area as in single-web processing, since this does not have to be spread.
  • the two outer partial webs take the path with the expansion shaft as the partial webs in two-lane processing.
  • the European patent application EP 1 637 488 A2 discloses a device in which film sub-webs are deflected and spread in a fan-like manner along a first guide region. Thereafter, the partial webs are successively re-arranged in parallel, spaced-apart paths along a second guide region, each forming an angle with the first guide region. Thereafter, the partial webs are wound on coils.
  • German patent application DE 100 23 169 A1 discloses a spreader for two partial webs with shafts and two turning bars.
  • German utility model DE 29612497 discloses a device for displacing a single web of continuous material which is diverted and offset over several shafts.
  • the object of the invention is a device for guiding a variable number specify partial webs of a continuous film, the device allows a quick switch from one to another number of partial webs and can be produced inexpensively.
  • the object of the invention is also to provide a fast, simple and cost-effective method for changing a first number to a second number of guided partial webs of a continuous film.
  • the device according to the invention for guiding a variable number of partial webs of a continuous film comprises in a first guide region at least one expansion shaft, which consists essentially of a first expansion section and a second expansion section.
  • at least two first deflection shafts are provided in a second guide region, which according to the invention can each be separated and closed from a first deflection section and a second deflection section.
  • An advantage of the inventively openable and closable deflection shafts is that the endless foil or the partial webs when changing from one to another number of partial webs no longer cut transversely to the direction and the new number of partial webs must be threaded new in the expansion shaft and / or deflection shafts , But that the open deflection shafts can accommodate the respective sub-web without threading.
  • middle sub-web is meant that immediately adjacent to it are two other so-called “outer” sub-webs.
  • the second partial web can be regarded as a middle partial web to the first and third outer partial web, or the third partial web can be considered as a middle partial web to the second and fourth outer partial web.
  • the terms “middle” and “outer” are thus to be understood relative to immediately adjacent sub-paths. If only a single partial web is provided, the endless foil has therefore not been subdivided further in the direction of travel, so in the context of the present invention, this single web should also be regarded as the middle partial web.
  • the device according to the invention is particularly suitable for a machine or system for producing containers, which are each covered with a blank of an endless film.
  • At least one second deflection shaft is preferably provided in the second guide region, which is mounted substantially between the at least two first deflection shafts.
  • the second deflection shaft is arranged such that it can be supplied from the expansion shaft at least two of the partial webs.
  • the second deflection shaft is thus arranged downstream of the expansion shaft in the running direction of the respective partial webs and is also designed as a spreader shaft in order to space the film partial webs parallel again.
  • up to three divided partial webs can be guided in the device as described below.
  • the one and only partial web is guided over the at least two first deflection shafts in the second guide region.
  • the two partial webs are guided in parallel only over the expansion shaft in the first guide region and then over the second deflection shaft in the second guide region.
  • only the middle part web is guided over the first deflection shafts in the second guide region, as in single-web processing.
  • the two outer partial webs are first guided over the expansion shaft and then over the second deflection shaft, as in the case of two-lane processing.
  • the middle part of the web is feasible through the two expansion sections of the expansion shaft trouble-free, it should be designed accordingly.
  • it is preferably associated with an adjusting spindle, which allows a variable adjustment of a spread angle between the respective spreading portion and a base orientation is formed.
  • At least one first input shaft may be provided in the first guidance region for optimal feeding of the endless foil or partial webs. It is arranged such that, in the case of single-track processing, one partial web can be fed from the first input shaft to the first deflecting shafts and, in the case of two-web processing, the two partial webs can be guided from the first input shaft to the expansion shaft.
  • the three partial webs are jointly feasible from the first input shaft to the expansion shaft.
  • the middle partial web is taken up by the at least two deflection shafts, it is guided by them.
  • the middle part of the web is then guided from the first input shaft to the first guide shafts and only the two outer partial webs are guided from the first input shaft to the expansion shaft.
  • At least one second input shaft can be provided in a third guide region, which is arranged between the first and second guide regions.
  • the endless film or the partial webs are guided from the first input shaft to the second input shaft and then further either to the spreader shaft or to the first deflection shafts.
  • a replaceable and / or adjustable cutting unit for dividing the endless foil may be arranged in the at least one partial path between the first input shaft and the second input shaft.
  • At least one output shaft may be provided in the first guide region.
  • the at least one partial path is removed from the device via this output shaft.
  • the output shaft is arranged downstream of the first deflection shafts, the expansion shaft and the second deflection shaft.
  • the first number of partial webs is first led to a spreading shaft of a first guide region.
  • the partial webs are spaced by the expansion shaft. Due to the number change is then performed for a short period, the second number of partial webs to the expansion shaft.
  • a middle partial web of the new number of partial webs is guided between a first expansion section and a second expansion section of the expansion shaft.
  • Two first deflection shafts of a second guide region are opened by pivoting in each case a first deflection section and a second deflection section of the two first deflection shafts.
  • the middle part of the web is guided by the open expansion portions in the direction of the second guide portion and then received by the deflection.
  • the two first deflection shafts are closed by pivoting the respective deflection sections together. Subsequently, the middle part of the web over the two now closed first deflection shafts and the two outer partial webs are guided over the expansion sections.
  • FIG. 1 shows a perspective view of an embodiment of a device for guiding a variable number of partial webs from the prior art.
  • FIG. 2 shows a side view of the device FIG. 1 on average.
  • FIG. 3 shows a perspective view of an embodiment of the inventive device for guiding a variable number of partial webs.
  • FIG. 4 shows a side view of the device FIG. 3 in section, wherein a middle part of the web is received by two deflection shafts.
  • FIG. 5 shows a side view of the device FIG. 3 in the section, after the middle partial web was taken up by the deflection shafts.
  • a spreading shaft 31 which consists essentially of a first spreading section 311 and a second spreading section 312.
  • the two spreading sections 311, 312 may be inclined at a base orientation 6 (see FIG. 3 ).
  • a first input shaft 32 and an output shaft 33 are provided in the first guide region 11.
  • the device 1 also comprises at least two substantially one-piece first deflection shafts 41, 42, a second deflection shaft and a guide shaft 44 in a second guide region 12.
  • FIG. 2 shows a side view of the device 1 after FIG. 1 on average.
  • the endless film 5 is initially transported in a running direction 20 to the first input shaft 32 in the first guide region 11.
  • the endless film 5 then passes through a cutting unit 2 for dividing the endless film 5 into one, two or three partial webs 21, 22, 23.
  • one partial web 23 is guided further from the second input shaft 51 in the running direction 203 via the at least two first deflection shafts 41, 42, and then via the guide shaft 44 to the output shaft 33.
  • the two partial webs 21, 22 are guided in parallel from the second input shaft 51 in the direction of travel 201 over the expansion shaft 31 and then via the second deflection shaft 43 to the output shaft 33.
  • the guidance of the middle part of web 23 takes place as in the one-lane guide on the first guide shafts 41, 42 and the guide of the two outer partial webs 21, 22 as in the two-lane guide on the expansion shaft 31 and second guide shaft 43rd
  • the cutting unit 2 is first exchanged or adjusted such that it now cuts three instead of two partial webs 21, 22, 23.
  • the endless film 5 is previously cut off transversely to the direction of travel 20.
  • the starting piece of the new middle part of web 23 must be manually guided over the first guide shaft 41. Since the deflection shafts 41, 42 from the prior art, although rotatable, but otherwise are stored firmly, the threading must be carried out manually or with suitable technical devices. Accordingly, the initial pieces of the new outer partial webs 21, 22 must be re-led over the expansion shaft 31. Such a retrofitting of the device 1 is time consuming and costly.
  • FIG. 3 shows a perspective view of an embodiment of the inventive device 1 for guiding a variable number of partial webs 21, 22, 23.
  • the device 1 is substantially as in the FIGS. 1 and 2 configured with the difference that now according to the invention, the at least two first deflection shafts 41, 42 are separable and closable.
  • the first deflecting shaft 41 essentially consists of a first deflecting section 411 and a second deflecting section 412.
  • the first deflecting shaft 42 consists essentially of a first deflecting section 421 and a second deflecting section 422.
  • the deflection sections 411, 412, 421, 422 can be designed differently for opening, pivoting and closing. So they can all be swiveled or, as here in FIG. 3 1, only the first deflection section 411 of the first deflection shaft 41 and the first deflection section 421 of the first deflection shaft 42 are shown pivotable, whereas the second deflecting portion 412 of the first deflecting shaft 41 and the second deflecting portion 422 of the first deflecting shaft 42 is rigidly connected to the device 1.
  • the deflection sections 411 and 412 In the closed state, the deflection sections 411 and 412 form a plug-in connection via a pin and a suitable inlet on the correspondingly opposite end sides of the deflection sections 411 and 412.
  • the deflection sections 421 and 422 are likewise designed accordingly. It will be apparent to those skilled in the art that the turnaround sections 411, 412, 421, 422 may be configured differently for opening, pivoting and closing without departing from the scope of the invention.
  • a middle partial web 23 should be feasible between the expansion sections 311, 312 away from the expansion shaft 31 and thus away from the first guide region 11 towards the second guide region 12.
  • the guiding of the middle partial web 23 to the second guide region 12 can be done manually or by suitable technical means (not shown).
  • the two spreading sections 311, 312 should be opened correspondingly wide for trouble-free passage of the middle part track 23.
  • the expansion shaft 31 according to the embodiment according to FIG. 3 associated with an adjusting spindle 4, which allows a variable adjustment of a spread angle ⁇ , which is formed between the respective spreading portion 311 and 312 and the base orientation 6.
  • a lever 3, for example a drawbar 3 per spreading section 311 or 312 can be actuated, so that a suitable inclination of the spreading 311, 312 is achieved with respect to the base orientation 6 and the middle part of the web 23 smoothly through the gap between the Spreizabêten 311, 312 feasible is.
  • the oblique position furthermore also serves to spread the two outer partial webs 21, 22.
  • FIG. 4 shows a side view of the device 1 according to the invention FIG. 3 in section, wherein a middle part of the web 23 by two deflection shafts 41, 42 is received. Due to the cross-sectional view, only the front one is in each case Deflection section 411 and 421 of the first deflection shaft 41 and 42 visible. The rear second deflection section 412 or 422 of the first deflection shaft 41 or 42 is covered.
  • the cutting unit 2 When changing from two partial webs 21, 22 on three partial webs 21, 22, 23, the cutting unit 2 is first as at FIG. 1 and 2 adjusted accordingly or replaced suitable for three-lane processing. However, the endless film 5 or the two partial webs 21, 22 need not be cut transversely to the running direction 20 when changing. Instead, the now three partial webs 21, 22, 23 are initially guided by the second input shaft 51 to the expansion shaft 31. There, the two new outer partial webs 21, 22 continue to be guided over the two spreading sections 311, 312 to the second deflection shaft 43 and then to the output shaft 33.
  • the new middle part of the web 23 is guided between the spreading portions 311, 312 away from the spreading shaft 31 and thus away from the first guide portion 11 toward the second guide portion 12, as already in FIG. 3 described in detail.
  • the new middle part of the web 23 now extends as desired from the second input shaft 51 in the direction of the second guide portion 2 and no longer in the first guide portion 11.
  • the spread angle ⁇ can now be reduced again to such an amount, if necessary, for a spread of the new outer partial webs 21, 22 is sufficient.
  • the lever 3 and the adjusting spindle 4 are actuated accordingly, so that the intermediate space between the expanding sections 311, 312 of the expanding shaft 31 is correspondingly reduced.
  • the two first deflection shafts 41, 42 of the second guide region 12 are opened. This is done by the first deflecting portion 411 and / or the second deflecting portion 412 of the first deflecting shaft 41 are pivoted apart, and by the first deflecting portion 421 and / or the second deflecting portion 422 of the first deflecting shaft 42 are pivoted apart. As in FIG. 3 only the first deflecting section 411 of the first deflecting shaft 41 and the first deflecting section 421 (concealed) of the first deflecting shaft are described 42 swiveling.
  • the new central partial web 23 already located in the second guide region 12 is then received by the opened deflecting sections 411, 421, 412, 422.
  • FIG. 5 shows a side view of the device 1 according to the invention in section FIG. 3 After the middle part of the web 23 was taken up by the guide shafts 41, 42. After taking the middle part of the web 23 according to FIG. 4 the deflection sections 411 and 412 of the deflection shaft 41 and the deflection sections 421 and 422 of the deflection shaft 42 are closed. The middle part track 23 is now guided only via the second input shaft 51 to the deflection shafts 41, 42 and no longer on the expansion shaft 31 and second guide shaft 43.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Replacement Of Web Rolls (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
  • Steering Controls (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP20100178011 2009-10-05 2010-09-21 Einrichtung zum Führen einer variablen Anzahl von Teilbahnen einer Endlosfolie und Verfahren zum Wechseln einer ersten Anzahl auf eine zweite Anzahl geführter Teilbahnen Active EP2305586B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009044177 2009-10-05
DE102009044473A DE102009044473A1 (de) 2009-10-05 2009-11-09 Einrichtung zum Führen einer variablen Anzahl von Teilbahnen einer Endlosfolie und Verfahren zum Wechseln einer ersten Anzahl auf eine zweite Anzahl geführter Teilbahnen

Publications (3)

Publication Number Publication Date
EP2305586A2 EP2305586A2 (de) 2011-04-06
EP2305586A3 EP2305586A3 (de) 2011-08-24
EP2305586B1 true EP2305586B1 (de) 2013-06-26

Family

ID=43305921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100178011 Active EP2305586B1 (de) 2009-10-05 2010-09-21 Einrichtung zum Führen einer variablen Anzahl von Teilbahnen einer Endlosfolie und Verfahren zum Wechseln einer ersten Anzahl auf eine zweite Anzahl geführter Teilbahnen

Country Status (3)

Country Link
EP (1) EP2305586B1 (zh)
CN (1) CN102030214B (zh)
DE (1) DE102009044473A1 (zh)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198656A (en) * 1938-02-16 1940-04-30 Samcoe Holding Corp Apparatus for rectifying traveling strips
DE4241354C1 (de) * 1992-11-11 1994-02-17 Kisters Maschinenbau Gmbh Vorrichtung zum Längsschneiden und anschließendem Aufspreizen einer Materialbahn
DE29612497U1 (de) 1996-01-19 1996-09-19 Siemens Nixdorf Informationssysteme AG, 33106 Paderborn Einrichtung zum Versetzen einer Bahn aus Endlosmaterial
DE10023169A1 (de) 2000-05-11 2001-11-15 Roland Man Druckmasch Doppeltwirkende Spreizeinrichtung zur Spreizung einer Bahn
DE10044577A1 (de) * 2000-09-08 2002-03-21 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Trennen einer doppeltbreiten Ausgangs-Hüllmaterialbahn in zwei Teilbahnen
DE10234674B4 (de) * 2002-07-30 2010-04-29 Wifag Maschinenfabrik Ag Bahnspreizvorrichtung
ITMI20041669A1 (it) 2004-08-26 2004-11-26 S I A T Societa Internaz Metodo e macchina per il taglio di un nastro autoadesivo in una pluralita' di nastri sottili e per il loro riavvolgimento.
ATE476389T1 (de) * 2004-09-10 2010-08-15 Wifag Maschf Ag Bahnspreizverfahren und bahnspreizvorrichtung
EP2226281A1 (de) * 2006-05-02 2010-09-08 WIFAG Maschinenfabrik AG Vorrichtung und Verfahren zum Spreizen von Bahnsträngen
DE202008000890U1 (de) 2008-01-21 2008-03-20 Man Roland Druckmaschinen Ag Bahnspreizeinrichtung für eine Rotationsdruckmaschine und damit ausgerüstete Rotationsdruckmaschine

Also Published As

Publication number Publication date
EP2305586A2 (de) 2011-04-06
CN102030214A (zh) 2011-04-27
CN102030214B (zh) 2014-05-21
EP2305586A3 (de) 2011-08-24
DE102009044473A1 (de) 2011-04-07

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