EP0266903B1 - Kartonbehandlungsvorrichtung - Google Patents

Kartonbehandlungsvorrichtung Download PDF

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Publication number
EP0266903B1
EP0266903B1 EP87308788A EP87308788A EP0266903B1 EP 0266903 B1 EP0266903 B1 EP 0266903B1 EP 87308788 A EP87308788 A EP 87308788A EP 87308788 A EP87308788 A EP 87308788A EP 0266903 B1 EP0266903 B1 EP 0266903B1
Authority
EP
European Patent Office
Prior art keywords
roll pair
sprocket
discs
blanks
feed
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.)
Expired - Lifetime
Application number
EP87308788A
Other languages
English (en)
French (fr)
Other versions
EP0266903A1 (de
Inventor
Leonard Smith
Christopher Charles Moulds
Martin William Langdon Richards
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.)
Deritend Engineering Co Ltd
Original Assignee
Deritend Engineering Co Ltd
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 Deritend Engineering Co Ltd filed Critical Deritend Engineering Co Ltd
Publication of EP0266903A1 publication Critical patent/EP0266903A1/de
Application granted granted Critical
Publication of EP0266903B1 publication Critical patent/EP0266903B1/de
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/002—Precutting and tensioning or breaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/10—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with devices for breaking partially-cut or perforated webs, e.g. bursters

Definitions

  • This invention relates to board treatment apparatus for use in the production of discrete separated blanks out of larger blanks or from web material, This is done by cutting substantially through the board around the perimeter of the required blanks, so as to separate the blanks from the remainder or scrap. It is conventional to make the cuts incomplete or discontinuous so as to retain a connection, whilst the original blank or web proceeds through the treatment apparatus, and only effect separation at the end of the treatment.
  • the connected blanks may be arranged successively along the feed direction, that is to say two or more blanks may have been created in succession out of the original blank or from a continuous web, and possibly also there may be two or more blanks laterally of the feed direction.
  • the connections between these continuous blanks are not disturbed by the scrap removal apparatus and it is the object of the present invention to separate such continuous blanks wholly and completely from one another.
  • Patent GB 1 008 152 A discloses a web severing mechanism for a continuous web with cross perforations, in which the web is fed along a arcuate guide between feed rolls and accelerator rolls.
  • the two sets of rolls are driven by radially extending chains from a common drive shaft located generally at the centre of the curvature of the arcuate guide.
  • Adjustment to suit different blank lengths between perforations is effected within narrow limits by swinging one pair of rolls to vary the length of the arc between the two sets of rolls, up to a 90 ° maximum.
  • Apparatus for board treatment comprising a feed roll pair and a separator roll pair coupled together so that the separator pair has a higher surface speed than the feed roll pair, whereby blanks passing successively through the nips of both pairs will be linearly accelerated by the separator pair, together with means for adjusting the spacing between the two pairs in the feed direction so as to achieve a distance between said nips which is less than twice the length of a discrete blank and at least substantially equal to the length of a discrete blank, is characterised in that one of said separator pair has a pulley or sprocket connected by an endless belt or chain to further pulley or sprocket on a shaft at one end of a mainly sliding link of which the other end carries said separator pair, another pulley or sprocket on said shaft is connected by a second belt or chain to a pulley or sprocket on an intermediate shaft, and a further pulley or sprocket on said intermediate shaft is connected by
  • the invention recognises that the spacing between the nips is critical. If contrary to the invention a distance of more than twice the length of a blank being treated exists between the two nips it would be possible for the leading end of a first blank to be engaged by the acceleration rollers when the trailing end of the immediately following blank had passed the feed rollers, and hence two successive blanks could be drawn through the acceleration rollers together and that would prevent the desired separation being achieved. On the other hand if the distance between the nips is substantially less than the length of a single discrete blank, it will be possible for one and the same blank to be seized by the feed rolls and driven forwardly at one speed, whilst also being seized by the acceleration rolls trying to drive the same blank forward at a different speed. This might damage a blank particularly a relatively fragile one made of thin card rather than heavier board. However it is possible for the spacing between the two nips to be slightly less than unit length especially where it is heavier board or a less fragile blank which is concerned.
  • the feed rolls comprise generally cylindrical rollers geared together to be driven at the same speed, and with adjustment means for dealing with different thicknesses, or possibly spring loading to give a required nip pressure.
  • the acceleration rolls comprise pairs of discs the two discs of each pair being co-planar, and a plurality of discs being provided adjustably along the length of a pair of parallel shafts which are geared together for synchronous drive, the discs being adjusted to positions so that, for example, two laterally spaced pairs of discs engage each blank as it passes through the nip.
  • the discs being adjusted to positions so that, for example, two laterally spaced pairs of discs engage each blank as it passes through the nip.
  • a first one of these may be contacted at its laterally opposite marginal edges by a pair of discs on the upper of the two shafts, that is the one which is physically vertically above the feed plane, assuming the feed plane to be horizontal, the centre blank of the three by a pair of discs on the second shaft and which is below the feed plane, and the third blank by a further pair on the first shaft of the feed plane.
  • the two outer blanks will be deflected downwardly from the feed plane whilst the centre blank is deflected upwardly from the feed plane and this will achieve the complete separation required, and ensure that the remaining connection between the contiguous blanks is broken.
  • these references are to three blanks, the invention is useful with any number from two upwardly, in longitudinal or longitudinal and transverse directions.
  • All four shafts may be coupled together in a common gear train to maintain synchronisation of the upper and lower discs and of speed of all of them relative to an input.
  • This gear train may be coupled to the feed rollers so as to maintain speed synchronisation between the feed rollers and said gear train, so that if the speed rolls speed up or slow down, then the gear train does likewise.
  • the invention may be provided in the form of an attachment to an existing machine such as a diecutter using the feed rolls of the latter as those required by the present invention.
  • the invention may be put into effect in apparatus provided with its own feed rolls, including the possibility of providing the invention as the final stage in a complex apparatus including those feed rolls.
  • said gear train with the associated shafts is mounted on a subframe which is movable relative to the feed rolls.
  • the movement may be achieved by a rack and pinion or equivalent.
  • the drive between the feed rolls and the gear train may be by way of an endless belt or chain and according to a feature of the invention, jockey wheels and adjusters are avoided by using a linkage comprising three links of fixed length, pivoted together end to end, with the first link being journalled on the feed roll axis from which the drive is derived, and the third link being slidable, for example parallel to the feed plane and being fixed to the drive input shaft of said gear train at one end and to the other links of the set at its other end.
  • the first and second links can swing in position as the third link slides during movement of the gear train towards and away from the feed roll.
  • Appropriate sprockets or pulleys are journalled on the pivotal axes of the links, and looped by corresponding belts or endless chains.
  • the invention is applied as an add-on attachment comprising a subframe 18 providing journals for shafts carrying the acceleration discs 20 22 and the lateral separation or side tie breaker discs 24 26. These are all geared together by intermediate gear pinions 28 30 and drive is taken to a sprocket on the shaft carrying the acceleration discs 20 by a chain 34 (also) looped about a sprocket on axis 36 at the end of a (mainly) sliding link connecting axis 36 with the axis of the shaft carrying accelerator disc 20.
  • a second chain 36 loops the sprocket on axis 36 with one on axis 40 at the end of a swinging link connecting axes 36 and 40 and another chain 42 connects that sprocket with one on the axis of the drive roll 16.
  • the adjustment means for varying the spacing along the feed path 12 in the feed rolls 14 16 and the subframe 18, or more effectively between the feed rolls and the shafts carrying the acceleration discs 20 22, in this instance, comprises a fixed length of roller chain 46 carried by the subframe, and a meshed drive sprocket 48 mounted on an extension from the main frame 50.
  • the subframe and the main frame are connected by extensible bellows or gaiter 52 to enclose the chain drive.
  • the gap between the two frame is bridged by a series of wires 56 which are held in tension by a springloaded reel 58, so that as the subframe is moved away from the main frame, the wires are fed out to provide a support for blanks across the gap.
  • Nip adjustment is provided by an adjuster mechanism 60 shown diagrammatically.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Claims (4)

1. Vorrichtung zur Kartonbearbeitung, enthaltend ein Zuführwalzenpaar (14, 16) und ein Abtrennwalzenpaar (20, 22), die so zusammengekuppelt sind (durch Mittel 34-42), daß das Abtrennwalzenpaar eine höhere Umfangsgeschwindigkeit besitzt als das Zuführwalzenpaar, wodurch Bögen, die aufeinanderfolgend durch die Klemmspalte beider Paare hindurchpassieren, von dem Abtrennwalzenpaar linear beschleunigt werden, zusammen mit Einrichtungen (46, 48) zur Einstellung des Abstandes zwischen den beiden Paaren in Förderrichtung, um einen Abstand zwischen den genannten Klemmspalten zu erreichen, der kleiner ist als das Zweifache der Länge eines einzelnen Bogens und wenigstens nahezu gleich der Länge eines einzelnen Bogens ist, dadurch gekennzeichnet, daß eine Walze des Abtrennwalzenpaares (20, 22) eine Riemenscheibe oder ein Kettenrad aufweist, die bzw. das durch einen endlosen Riemen oder eine endlose Kette (34) mit einer weiteren Riemenscheibe oder einem weiteren Kettenrad auf einer Achse (36) an einem Ende eines Hauptgleitverbindungsgliedes verbunden ist, dessen anderes Ende das genannte Abtrennwalzenpaar trägt, wobei eine andere Riemenscheibe oder ein anderes Kettenrad auf dieser Achse durch einen zweiten Riemen oder eine zweite Kette (38) mit einer Riemenscheibe oder einem Kettenrad auf einer Zwischenachse (40) verbunden ist und wobei eine weitere Riemenscheibe oder ein weiteres Kettenrad auf dieser Zwischenachse durch einen dritten Riemen oder eine dritte Kette (42) mit einer Riemenscheibe oder einem Kettenrad in Verbindung steht, die bzw. das durch eine Walze (16) des Zuführwalzenpaares getragen wird.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß Mittel (56, 58) zum Abstützen der Bögen im Raum zwischen den genannten Klemmspalten vorgesehen sind.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Abtrennwalzenpaar ein Paar Scheiben (20, 22) enthält, die in ihrer Position einstellbar sind (durch Mittel 60), um den Klemmspalt zwischen ihnen unterschiedlichen Kartondicken anzupassen, und daß eine gemeinsame Einrichtung zur Schaffung einer seitlichen Trennung zwischen benachbarten Bögen zweite Gruppen von Scheiben (24, 26) enthält, die in seitlicher Richtung quer zur Förderebene nebeneinanderliegen und sich überlappen.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Scheiben (20, 22) oder die Scheiben (20, 22 und 24, 26) in Gruppen vorgesehen sind, die entlang der Länge der titriebswelle einstellbar sind, um den Erfordernissen der einzelnen Bögen zu entsprechen.
EP87308788A 1986-11-01 1987-10-05 Kartonbehandlungsvorrichtung Expired - Lifetime EP0266903B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8626179 1986-11-01
GB868626179A GB8626179D0 (en) 1986-11-01 1986-11-01 Board treatment apparatus

Publications (2)

Publication Number Publication Date
EP0266903A1 EP0266903A1 (de) 1988-05-11
EP0266903B1 true EP0266903B1 (de) 1990-08-01

Family

ID=10606698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87308788A Expired - Lifetime EP0266903B1 (de) 1986-11-01 1987-10-05 Kartonbehandlungsvorrichtung

Country Status (3)

Country Link
EP (1) EP0266903B1 (de)
DE (1) DE3764066D1 (de)
GB (1) GB8626179D0 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735443A (en) * 1993-09-08 1998-04-07 Moore Business Forms Inc Single part burster
CN105328739B (zh) * 2015-11-23 2017-07-04 四川省青城机械有限公司 基于立轴剖分锯出料端夹紧强制输送机构

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1008152A (en) * 1963-03-13 1965-10-27 Lamson Paragon Ltd Improvements in or relating to paper and the like web severing mechanisms

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231100B (de) * 1964-12-01 1966-12-22 Eberhard Tilger Dipl Ing Anordnung zur Betaetigung der Trennvorrichtung zum Trennen von mit Schwaechungslinien versehenen Bahnen aus Papier, Kunststoff od. dgl. in einer Schlauchziehmaschine
GB1333161A (en) * 1970-01-30 1973-10-10 Windmoeller & Hoelscher Severing apparatus for severing lengths of tube from flattened scored tubing
FR2247099A5 (en) * 1973-10-04 1975-05-02 Sodern Automatic tearing device for perforated paper - has inlet and outlet roller pairs, each with drive and press roller
DE3220892A1 (de) * 1982-06-03 1983-12-08 Icoma Packtechnik GmbH, 7590 Achern Trenneinrichtung zum abtrennen perforierter papierschlauchabschnitte

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1008152A (en) * 1963-03-13 1965-10-27 Lamson Paragon Ltd Improvements in or relating to paper and the like web severing mechanisms

Also Published As

Publication number Publication date
DE3764066D1 (de) 1990-09-06
EP0266903A1 (de) 1988-05-11
GB8626179D0 (en) 1986-12-03

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