EP2060388B1 - Corrugated cardboard system and method for manufacturing an infinite corrugated cardboard sheet - Google Patents

Corrugated cardboard system and method for manufacturing an infinite corrugated cardboard sheet Download PDF

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Publication number
EP2060388B1
EP2060388B1 EP08017074A EP08017074A EP2060388B1 EP 2060388 B1 EP2060388 B1 EP 2060388B1 EP 08017074 A EP08017074 A EP 08017074A EP 08017074 A EP08017074 A EP 08017074A EP 2060388 B1 EP2060388 B1 EP 2060388B1
Authority
EP
European Patent Office
Prior art keywords
web
corrugated cardboard
corrugated
longitudinal cutting
glue
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.)
Not-in-force
Application number
EP08017074A
Other languages
German (de)
French (fr)
Other versions
EP2060388A3 (en
EP2060388A2 (en
Inventor
Felix Titz
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.)
BHS Corrugated Maschinen und Anlagenbau GmbH
Original Assignee
BHS Corrugated Maschinen und Anlagenbau GmbH
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
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Publication of EP2060388A2 publication Critical patent/EP2060388A2/en
Publication of EP2060388A3 publication Critical patent/EP2060388A3/en
Application granted granted Critical
Publication of EP2060388B1 publication Critical patent/EP2060388B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2818—Glue application specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2822—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard involving additional operations
    • B31F1/2827—Edge treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2831—Control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1008—Longitudinal bending
    • Y10T156/1011—Overedge bending or overedge folding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y10T156/1018—Subsequent to assembly of laminae
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y10T156/102—Transverse corrugating with deformation or cutting of corrugated lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact

Definitions

  • the invention relates to a corrugating machine and a method for producing an endless corrugated web.
  • a corrugated web is first provided with glue by means of a first gluing unit and connected with a first cover web to form a single-sided laminated corrugated web. Subsequently, the corrugated web is provided with glue by means of a second gluing unit on the side opposite the first cover web and connected to a second cover web to form a double-sided laminated corrugated web. Since the jobs to be processed at least partially have an application width, which essentially corresponds to the web width of the webs, the gluing and gluing of the webs takes place up to the edges.
  • the disadvantage is that can leak through the gluing and gluing of the webs to the edges of side glue, the components of the corrugated board plant, such as the corrugated rolls or the heating plates, contaminated.
  • Such impurities lead to increased wear of the components, so that the components must be cleaned frequently to avoid this wear.
  • the corrugated plant is shut down, which is undesirable for cost reasons.
  • scrap is produced in the corrugated board from a certain degree of contamination.
  • a corrugated board plant which produces a two-sided laminated corrugated board web by means of two production facilities.
  • the production facilities have an adjustable gluing unit, so that the glue width can be changed.
  • the double-sided laminated corrugated board web is cut by means of a cross-cutting device in sheets, the edges of which are then trimmed by means of a longitudinal cutting device.
  • gluing unit which has lateral plates so that glue removed from a glue application roller is prevented from leaking laterally.
  • the gluing unit also has transversely to a transport direction of the corrugated web to be glued glue dams, so that a Beleimumble the Leimwerks can be adapted to the web width of the corrugated web. Since the gluing and gluing of the webs takes place up to the edges, this gluing unit also has the disadvantages described above.
  • the invention is therefore based on the object, a corrugated board plant and a method for the production of corrugated webs in such a way that the maintenance costs, the associated downtime of the corrugated board plant and the glue consumption are reduced.
  • the changing of the Beleimcast by means of the longitudinal cutting device upstream of at least one production device must be carried out as a function of at least one determined web length.
  • the control device controls the at least one production device as a function of the at least one determined web length and an order length of an order not yet processed in the slitting device and changes the web width precisely if the order length still to be processed corresponds to the at least one web length. In this way it is ensured that the changing of the Beleimbreite locally coincides with the format change in the slitter.
  • the non-glued edge strips of the corrugated web are removed during the format change by means of the longitudinal cutting device.
  • a corrugated board plant 1 has a first splice device 3, a second splice device 4, a corrugation device 5 and a first production device 6 for producing a single-sided laminated corrugated web 2.
  • the first splicing device 3 has two unrolling units 8 and a connecting and cutting unit, not shown, for providing an endless first cover sheet 7.
  • the exact structure of the first splice device 3 is in the DE 10 2006 003 200 A described.
  • the second splicing device 4 is constructed in accordance with the first splicing device 3 and has two second unrolling units 10 for providing an endless material web 9.
  • the splicing devices 3, 4 are arranged downstream of the corrugating device 5 in a transport direction 11.
  • the corrugator device 5 serves to produce an endless corrugated web 12 from the endless material web 9.
  • the corrugator device 5 has a first corrugating roller 14 rotatable about a first rotational axis 13 and a second corrugating roller 14 about a second rotational axis 15 rotatably driven second corrugating roller 16 on.
  • the corrugating rolls 14, 16 form a gap for the passage and corrugation of the endless material web 9, wherein the rotation axes 13, 15 run parallel to one another.
  • a measuring device 17 for measuring the rotational speed of the second corrugating roller 16 is arranged on the second corrugating roller 16.
  • the first production device 6 has a first gluing unit 18.
  • the first gluing unit 18 comprises a first glue application roller 19, a first glue metering roller 20 and a first glue container 21.
  • the first glue container 21 defines a container interior 22.
  • the container interior 22 is inserted through glue dams 23 into one centrally arranged glue space 24 and laterally arranged free spaces 25 divided.
  • the glue space 24 is filled with glue 26.
  • the glue dams 23 bear tightly against the glue container 21, so that the gluing space 24 is tight towards the free spaces 25.
  • the glue dams 23 are individually displaceable along a displacement direction 27, which runs transversely to the transport direction 11. At a free end, the glue dams 23 each have a threaded sleeve 28 which cooperates with an associated threaded rod 29. The threaded rods 29 are rotatably mounted on the first glue container 21 and each rotatably driven by means of a separate drive 30. The glue dams 23 define therebetween a distance, which is referred to as Beleimumble B L.
  • the first size metering roller 20 is partially disposed within the first size container 21 for receiving glue 26. The first size metering roll 20 abuts against the first size coat roller 19 and serves to form a uniform size coat on the first size coat roller 19.
  • the first size coat roll 19 forms with the second score line roll 16 a gap for performing the corrugated web 12 from.
  • the first production device 6 For pressing the provided with glue 26 corrugated web 12 against the first cover sheet 7, the first production device 6, a first pressure roller 31 on.
  • the first production device 6 in the transport direction 11 is followed by a storage device 32.
  • the single-faced laminated corrugated web 2 is transported in the storage device 32 from a storage device beginning 33 to a storage device end 34, wherein the single-faced corrugated web 2 forms loops 35.
  • the memory device 32 is formed like a table and is referred to in the jargon as a bridge.
  • the memory device 32 is preceded by a marking device 36 relative to the transport direction 11.
  • the marking device 36 serves to attach marks 37 to the endless material web 9.
  • the marking device 36 is arranged between the second splicing device 4 and the corrugating device 5, so that the marks 37 are attached to an underside of the endless material -Bru 9 are attachable. With regard to the exact structure and the exact operation of the marking device 36 is on the DE 10 2007 027 879.0 directed.
  • the memory device 32 is followed by a detector device 38 in the transport direction 11, the detector device 38 being arranged between the memory device 32 and a second production device 39.
  • the detector device 38 has an optical detector 40, which is arranged on a detector carrier 41.
  • the detector carrier 41 is attached to the memory device end 34 on the memory device 32.
  • the second production device 39 serves for gluing and bonding the single-sided laminated corrugated web 2 with an endless second cover web 42 to a double-sided laminated corrugated web 43.
  • the double-sided laminated corrugated cardboard base 43 has a web width B B
  • the second production device 39 has a second gluing unit 44.
  • the second gluing unit 44 is constructed according to the first gluing unit 18 and has a second glue application roller 45, a second glue metering roller 46 and a second glue container 47.
  • a Anpress-table 48 and an endless pressure belt 49 is provided which form a Anpress gap 50.
  • the pressure belt 49 is deflected by three belt deflection rollers 51 and driven.
  • the pressing table 48 is provided with heating plates for heating the double-faced laminated corrugated board 43.
  • a third splice device 52 is provided.
  • the third splicing device 52 is designed in accordance with the splicing devices 3, 4 and has corresponding third unrolling units 53.
  • the production devices 6, 39 is followed by a creasing device 54 and a longitudinal cutting device 55 in the transport direction 11.
  • the R.ill device 54 and the longitudinal cutting device 55 are integrally formed as a longitudinal cutting / grooving device 55, 54.
  • the creasing device 54 has a first creasing unit 56 and a second creasing unit 57.
  • the creasing units 56, 57 each have two tool beds which are arranged one above the other in a substantially mirror-symmetrical manner with respect to the corrugated web 43.
  • the tool beds are pivotable, so that scoring tools 58 individually engageable with the corrugated web 43 in engagement are.
  • the creasing tools 58 are individually displaceable transversely to the transport direction 11.
  • the longitudinal cutting device 55 has a first longitudinal cutting unit 59 and a second longitudinal cutting unit 60 arranged downstream of the latter.
  • the longitudinal cutting units 59, 60 cutting tools 61 which are arranged on tool carriers and individually engageable with the corrugated web 43 and individually transversely to the transport direction 11 are displaced ,
  • the exact structure and the exact operation of the creasing device 54 and the longitudinal cutting device 55 is on the DE 197 54 799 A (equivalent to US 6,071,222 ) and the DE 101 31 832 A directed.
  • the longitudinal cutting device 55 is used for longitudinal cutting of the double-sided laminated corrugated board web 43 into a plurality of partial corrugated webs 62.
  • the two outer cutting tools 61 of the longitudinal cutting units 59, 60 are used for edge-side longitudinal cutting, so that edge strips 63 of the corrugated board -Bru 43 are separable.
  • the outer cutting tools 61 of the longitudinal cutting units 59, 60 each define a tool spacing B W , which is variable by displacement of the outer cutting tools 61 transversely to the transport direction 11.
  • the longitudinal cutting device 55 is downstream of a cross-cutting device 64 in the transport direction 11.
  • the cross-cutting device 64 has a rotatable knife bar roller 65, which extends over the entire web width B B.
  • the support units 66 are each connected to a piston-cylinder unit 67, so that the support units 66 along the transport direction 11 are individually displaced.
  • the cross-cutting device 64 serves to partially cross-cut the corrugated web 43 in a format change. With regard to the exact structure and the exact operation of the transverse shearing device 64 is on the EP 1 652 639 A (corresponding US 2006/0086217 A ).
  • the cross-cutting device 64 is arranged in the transport direction 11 downstream of a edge strip-discharge unit 68.
  • the edge strip removal unit 68 serves to remove the separated edge strips 63.
  • the edge strip removal unit 68 is downstream of a switch 69 in the transport direction 11.
  • the switch 69 has a feed table 70 and two discharge tables 71 arranged one above the other. Between the feed table 70 and the discharge tables 71, a switch element 72 is arranged, which serves for the division of the partial corrugated cardboard webs 62 in two planes.
  • the switch 69 are arranged in a known manner further cross-cutting devices for cross-cutting the partial corrugated webs 62 to corrugated sheets and a stacking device.
  • the corrugated web 2, 43 located between the first production device 6 and the longitudinal cutting device 55 has a first web length L 1 .
  • the first web length L 1 is composed of a first partial web length L 11 , which describes the length of the corrugated web 2 between the first production device 6 and the memory device end 34 of the memory device 32, and a second Part length L 12 describing the length of the corrugated web 2, 43 between the storage device end 34 and the slitter 55.
  • the first partial web length L 11 is variable due to the cached corrugated web 2, whereas the second partial web length L 12 is constant and known.
  • the corrugated web 2, 43 located between the second production device 39 and the longitudinal cutting device 55 has a second web length L 2 .
  • the second track length L 2 is constant and known.
  • an electronic control device 73 is provided with the splice devices 3, 4, 52, with the production facilities 6, 39, with the measuring device 17, with the marking device 36th , is in signal communication with the detector means 38, with the slitter / groove means 55, 54 and with the chopper means 64.
  • the signal connections are in the FIGS. 1 and 2 represented by a dashed line.
  • the control device 73 is designed in such a way that the first and second web lengths L 1 , L 2 can be determined and the web widths B B of the first and second gluing units 18, 44 can be varied as a function of the first and second web lengths L 1 , L 2 .
  • the control device 73 is further designed such that the cutting tools 61 of the longitudinal cutting device 55 can be controlled and the tool spacing B W of the outer cutting tools 61 can be adapted to the glue width B L of the gluing units 18, 44.
  • a first order A 1 has a first order length L A1 and a first order width B A1 .
  • a subsequent second order A 2 has a second order length L A2 and a second order width B A2 , which differ from the first order length L A1 and from the first order width B A1 .
  • the first splice device 3 generates the endless first cover sheet 7, which is fed to the first production device 6.
  • the second splice device 4 produces the endless material web 9, which is first supplied to the marking device 36.
  • the marking device 36 generates a mark 37 on the underside of the material web 9.
  • FIG. 7 shows a mark 37 which is formed for example as a color mark and by means of a solid dye, such as chalk, was generated.
  • the marking device 36 sends a signal to the control device 73.
  • the marked material web 9 is fed to the corrugator device 5, wherein the corrugator device 5 generates the corrugated web 12 from the material web 9.
  • the corrugated web 12 is provided in the first production device 6 in a Beleim area 74 with glue 26 and bonded to the first cover sheet 7 to the one-sided laminated corrugated web 2.
  • the gluing area 74 has a width corresponding to the glue width B L of the first gluing unit 18.
  • the measuring device 17 constantly measures the rotational speed of the second corrugating roller 16 and sends the measured speed measured values to the control device 73.
  • the glue widths B L of the gluing units 18, 44 were adapted to the first application width B A1 .
  • the control device 73 has actuated the drives 30 and displaces the glue dams 23 along the direction of displacement 27 such that the glue widths B L correspond to the first application width B A1 .
  • the control device 73 has controlled the longitudinal cutting device 55 such that the tool spacing B W of the outer cutting tools 61 corresponds to the first application width B A1 , so that the edge strips 63 are removed.
  • the edge strips 63 are substantially not with glue 26 provided because the Beleimumblen B L of the Glue Units 18, 44 correspond to the first application width B A1 , which is smaller than the web width B B. A marginal leakage of glue 26 is thus prevented.
  • the single-faced laminated corrugated web 2 of the memory device 32 is supplied, where it is buffered in loops 35 and thus forms a buffer.
  • the single-faced laminated corrugated web 2 is transported in the transport direction 11 from the memory device beginning 33 to the memory device end 34 and fed there to the detector device 38.
  • the attached mark 37 is detected by means of the optical detector 40, wherein in the detection process, an electrical signal is sent to the control device 73.
  • the control device 73 calculates the first partial track length L 11 between the first production line.
  • the described marking and detection process is repeated periodically, so continuously marks 37 are mounted and detected, and the calculation of the first partial web length L 11 are repeated at short intervals can.
  • the current first partial web length L 11 is constantly known.
  • control device 73 constantly calculates the current first web length L 1 of the corrugated web 2, 43 located between the first production device 6 and the longitudinal cutting device 55 known second track length L 2 is present in the control device 73.
  • the single-faced laminated corrugated web 2 of the second production device 39 is supplied.
  • the corrugated web 12 of the corrugated web 2 laminated on one side is provided with glue 26 in a further gluing area 74, the gluing area 74 having a width corresponding to the glue width B B of the second gluing plant 44 ,
  • the one-sided laminated corrugated web 2 provided with glue 26 is connected to the second thick web 42 to the double-sided laminated corrugated web 43.
  • the double-faced laminated corrugated web 43 is then fed to the slitter / scorer 55, 54 and the cross-cutter 64, where longitudinal cuts 75 and cross-sections 76 connecting them are made.
  • the outer longitudinal cuts 75 separate the edge strips 63 from the part corrugated webs 62.
  • the separated edge strips 63 are removed by means of the edge strip removal unit 68 and the part corrugated board webs 62 for further processing via the switch 69 and divided into two levels.
  • a format change is required. Based on the web speed of the corrugated web 2, 43 after the memory device 32, which is determined by means of a measuring device, not shown, the control device 73 constantly calculates a first part-order length L A11 , already in the longitudinal cutting Means 55, and a second part-order length L A12 which is still to be processed by the slitter 55. In the format change, the control device 73 first controls the first gluing unit 18, wherein the glue drums 23 are displaced along the displacement direction 27 by means of the drives 30 such that the glue width B L of the second order width B A2 corresponds.
  • the changing of the Beleimumble B L takes place in dependence of the determined by means of the control device 73 first track length L 1 , namely in time exactly when the first track length L 1 of the still to be processed second part-order length LA 12 of the first order A 1 corresponds ,
  • the corrugated web 12 is glued on the side facing the first cover sheet 7 in a gluing area 74 which has a width corresponding to the glue width B L , wherein the glue width B L is smaller than the web width B B.
  • the second gluing unit 44 is actuated in chronological order by means of the control device 73.
  • the glue dams 23 of the second gluing unit 44 are displaced along the displacement direction 27 such that the glue width B L of the second gluing unit 44 corresponds to the second application width B A2 .
  • the driving of the second gluing unit 44 occurs in time precisely when the second web length L 2 determined by means of the control device 73 corresponds to the second part-order length L A12 of the first job A 1 still to be processed.
  • the gluing of the corrugated web 12 on the side facing the second cover web 42 thus takes place in a gluing region 74, which has a width corresponding to the glue width B L of the second gluing unit 44.
  • the gluing areas 74 coincide locally on both sides of the corrugated web 12, since changing the Beleimumble B L in the gluing units 18, 44th depending on the track lengths L 1 , L 2 takes place.
  • the cutting tools 61 of the slitter 55 by means of the control device 73 transversely to the transport direction 11 relocated.
  • the outer cutting tools 61 are displaced transversely to the transport direction 11 such that their tool spacing B W corresponds to the bearing width B A2 of the second job A 2 .
  • the displacement of the outer cutting tools 61 takes place in time exactly when the job A 1 in the longitudinal cutting device 55 is completely processed, ie when the second part-order length L A12 is exactly zero.
  • the outer cutting tools 61 thus separate the substantially unglued edge strips 63 from. A marginal leakage of glue 26 is thus avoided even when processing the second job A 2 .
  • the determination of the track lengths L 1 , L 2 can also be used for synchronizing connecting seams, which arise in the manufacture of the endless cover sheets 7, 42 and the endless material web 9. With regard to the synchronization of these seams is on the DE 10 2007 027 879.0 directed.
  • the present invention may also be applied to corrugated webs having more than three layers, for example, to five-ply corrugated webs.
  • the web lengths of all corrugated webs between the production equipment and the slitter must be determined.

Abstract

The machine (1) has a production device (39) for producing an endless web of corrugated cardboards (2, 43) from a corrugated web (12). A longitudinal cutting device (55) is arranged downstream of the production device in transport direction (11) for longitudinally cutting the endless web of corrugated cardboards. An electronic control device (73) is designed such that the length of the web of the corrugated cardboards is detected between the production device and the longitudinal cutting device, and application width is varied based on the web length. An independent claim is also included for a method of producing an endless web of corrugated cardboard.

Description

Die Erfindung betrifft eine Wellpappe-Anlage und ein Verfahren zur Herstellung einer endlosen Wellpappe-Bahn.The invention relates to a corrugating machine and a method for producing an endless corrugated web.

Bei der Herstellung von endlosen Wellpappe-Bahnen wird eine Well-Bahn zunächst mittels eines ersten Leimwerks mit Leim versehen und mit einer ersten Deck-Bahn zu einer einseitig kaschierten Wellpappe-Bahn verbunden. Anschließend wird die Well-Bahn mittels eines zweiten Leimwerks auf der der ersten Deck-Bahn gegenüberliegenden Seite mit Leim versehen und mit einer zweiten Deck-Bahn zu einer zweiseitig kaschierten Wellpappe-Bahn verbunden. Da die abzuarbeitenden Aufträge zumindest teilweise eine Auftragsbreite aufweisen, die im Wesentlichen der Bahnbreite der Bahnen entspricht, erfolgt das Be- und Verleimen der Bahnen bis zu den Rändern. Nachteilig ist, dass durch das Be- und Verleimen der Bahnen bis zu den Rändern seitlich Leim austreten kann, der Bauteile der Wellpappe-Anlage, wie beispielsweise die Riffel-Walzen oder die Heiz-Platten, verunreinigt. Derartige Verunreinigungen führen zu einem erhöhten Verschleiß der Bauteile, sodass zur Vermeidung dieses Verschleißes die Bauteile häufig gereinigt werden müssen. Während der Reinigungsarbeiten steht die Wellpappe-Anlage still, was aus Kostengründen unerwünscht ist. Weiterhin wird in der Wellpappe-Anlage ab einem gewissen Verunreinigungsgrad Ausschuss hergestellt.In the production of endless corrugated webs, a corrugated web is first provided with glue by means of a first gluing unit and connected with a first cover web to form a single-sided laminated corrugated web. Subsequently, the corrugated web is provided with glue by means of a second gluing unit on the side opposite the first cover web and connected to a second cover web to form a double-sided laminated corrugated web. Since the jobs to be processed at least partially have an application width, which essentially corresponds to the web width of the webs, the gluing and gluing of the webs takes place up to the edges. The disadvantage is that can leak through the gluing and gluing of the webs to the edges of side glue, the components of the corrugated board plant, such as the corrugated rolls or the heating plates, contaminated. Such impurities lead to increased wear of the components, so that the components must be cleaned frequently to avoid this wear. During cleaning, the corrugated plant is shut down, which is undesirable for cost reasons. Furthermore, scrap is produced in the corrugated board from a certain degree of contamination.

Aus der US 3 977 929 A ist eine Wellpappe-Anlage bekannt, die mittels zwei Produktions-Einrichtungen eine zweiseitig kaschierte Wellpappe-Bahn erzeugt. Die Produktions-Einrichtungen weisen ein einstellbares Leimwerk auf, so dass die Beleimbreite veränderbar ist. Die zweiseitig kaschierte Wellpappe-Bahn wird mittels einer Querschneide-Einrichtung in Bögen geschnitten, deren Ränder anschließend mittels einer Längsschneide-Einrichtung beschnitten werden.From the US 3 977 929 A a corrugated board plant is known which produces a two-sided laminated corrugated board web by means of two production facilities. The production facilities have an adjustable gluing unit, so that the glue width can be changed. The double-sided laminated corrugated board web is cut by means of a cross-cutting device in sheets, the edges of which are then trimmed by means of a longitudinal cutting device.

Aus der DE 40 16 662 A1 (entsprechend US 5,101,761 ) ist ein Leimwerk bekannt, das seitliche Platten aufweist, sodass verhindert wird, dass von einer Leimauftrags-Walze abgestreifter Leim seitlich austreten kann. Das Leimwerk weist ferner quer zu einer Transport-Richtung der zu beleimenden Well-Bahn verlagerbare Leimdämme auf, sodass eine Beleimbreite des Leimwerks an die Bahnbreite der Well-Bahn angepasst werden kann. Da das Be- und Verleimen der Bahnen bis zu den Rändern erfolgt, weist auch dieses Leimwerk die oben beschriebenen Nachteile auf.From the DE 40 16 662 A1 (corresponding US 5,101,761 A gluing unit is known which has lateral plates so that glue removed from a glue application roller is prevented from leaking laterally. The gluing unit also has transversely to a transport direction of the corrugated web to be glued glue dams, so that a Beleimbreite the Leimwerks can be adapted to the web width of the corrugated web. Since the gluing and gluing of the webs takes place up to the edges, this gluing unit also has the disadvantages described above.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Wellpappe-Anlage und ein Verfahren zur Herstellung von Wellpappe-Bahnen derart weiterzubilden, dass der Wartungsaufwand, die damit verbundenen Stillstandszeiten der Wellpappe-Anlage sowie der Leimverbrauch verringert werden.The invention is therefore based on the object, a corrugated board plant and a method for the production of corrugated webs in such a way that the maintenance costs, the associated downtime of the corrugated board plant and the glue consumption are reduced.

Diese Aufgabe wird durch die Merkmale der unabhängigen Ansprüche 1 und 10 gelöst. Erfindungsgemäß wurde erkannt, dass nur wenige Aufträge eine Auftragsbreite aufweisen, die ein Be- und Verleimen der Bahnen über die gesamte Bahnbreite erfordern. Dadurch, dass mittels der Steuer-Einrichtung die mindestens eine Bahnlänge der zwischen der mindestens einen Produktions-Einrichtung und der Längsschneide-Einrichtung befindlichen Wellpappe-Bahn ermittelbar ist, kann die Beleimbreite an die Auftragsbreite der Aufträge angepasst werden. Durch das Anpassen der Beleimbreite an die Auftragsbreite erfolgt das Be- und Verleimen der Bahnen nicht über die gesamte Bahnbreite, sodass ein seitliches Austreten von Leim größtenteils verhindert wird. Da der Formatwechsel zwischen zwei Aufträgen mittels der Längsschneide-Einrichtung durchführt wird, muss das Verändern der Beleimbreite mittels der der Längsschneide-Einrichtung vorgeordneten mindestens einen Produktions-Einrichtung in Abhängigkeit der mindestens einen ermittelten Bahnlänge erfolgen. Die Steuer-Einrichtung steuert in Abhängigkeit der mindestens einen ermittelten Bahnlänge und einer noch nicht in der Längsschneide-Einrichtung abgearbeiteten Auftragslänge eines Auftrages die mindestens eine Produktions-Einrichtung an und verändert die Beleimbreite genau dann, wenn die noch abzuarbeitende Auftragslänge der mindestens einen Bahnlänge entspricht. Auf diese Weise ist sichergestellt, dass das Verändern der Beleimbreite örtlich mit dem Formatwechsel in der Längsschneide-Einrichtung zusammenfällt. Die nicht beleimten Randstreifen der Wellpappe-Bahn werden bei dem Formatwechsel mittels der Längsschneide-Einrichtung entfernt. Durch das Anpassen der Beleimbreite an die jeweilige Auftragsbreite wird ein seitliches Austreten von Leim im Wesentlichen vermieden. Verunreinigungen durch ausgetretenen Leim treten im Wesentlichen nicht auf, sodass Reinigungsarbeiten aufgrund von ausgetretenem Leim und damit verbundene Stillstandszeiten reduziert werden. Die Herstellung von Ausschuss kann vermieden und Leim eingespart werden.This object is solved by the features of independent claims 1 and 10. According to the invention, it has been recognized that only a few jobs have an application width which requires a gluing and gluing of the webs over the entire web width. By virtue of the fact that the at least one track length of the corrugated web located between the at least one production device and the longitudinal cutting device can be determined by means of the control device, the width of the web can be adapted to the application width of the jobs. By adjusting the Beleimbreite to the application width, the gluing and gluing of the webs is not over the entire web width, so that a lateral leakage of glue is largely prevented. Since the format change between two orders is carried out by means of the longitudinal cutting device, the changing of the Beleimbreite by means of the longitudinal cutting device upstream of at least one production device must be carried out as a function of at least one determined web length. The control device controls the at least one production device as a function of the at least one determined web length and an order length of an order not yet processed in the slitting device and changes the web width precisely if the order length still to be processed corresponds to the at least one web length. In this way it is ensured that the changing of the Beleimbreite locally coincides with the format change in the slitter. The non-glued edge strips of the corrugated web are removed during the format change by means of the longitudinal cutting device. By adjusting the Beleimbreite to the respective application width lateral leakage of glue is substantially avoided. Contaminants from leaked glue are essentially non-existent, so cleaning work due to leaked glue and associated downtime is reduced. The production of rejects can be avoided and glue can be saved.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention will become apparent from the dependent claims.

Zusätzliche Merkmale und Einzelheiten der Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispiels anhand der Zeichnungen. Es zeigen:

Fig. 1
einen ersten Teil einer Wellpappe-Anlage,
Fig. 2
einen zweiten Teil einer Wellpappe-Anlage,
Fig. 3
einen vergrößerten Ausschnitt der Wellpappe-Anlage in Fig. 1 im Bereich eines Leimwerkes und einer Markierungs- Einrichtung,
Fig. 4
einen vergrößerten Ausschnitt der Wellpappe-Anlage in Fig. 1 im Bereich einer Detektor-Einrichtung,
Fig. 5
eine perspektivische Ansicht eines Teils des Leimwerkes in Fig. 3,
Fig. 6
eine Draufsicht auf das Leimwerk in Fig. 5, und
Fig. 7
eine ausschnittsweise Draufsicht auf eine Wellpappe-Bahn.
Additional features and details of the invention will become apparent from the description of an embodiment with reference to the drawings. Show it:
Fig. 1
a first part of a corrugated board plant,
Fig. 2
a second part of a corrugated board plant,
Fig. 3
an enlarged section of the corrugated plant in Fig. 1 in the area of a gluing plant and a marking facility,
Fig. 4
an enlarged section of the corrugated plant in Fig. 1 in the area of a detector device,
Fig. 5
a perspective view of a part of the gluing plant in Fig. 3 .
Fig. 6
a plan view of the gluing in Fig. 5 , and
Fig. 7
a partial plan view of a corrugated web.

Eine Wellpappe-Anlage 1 weist zur Herstellung einer einseitig kaschierten Wellpappe-Bahn 2 eine erste Splice-Einrichtung 3, eine zweite Splice-Einrichtung 4, eine Riffel-Einrichtung 5 und eine erste Produktions-Einrichtung 6 auf. Die erste Splice-Einrichtung 3 weist zum Bereitstellen einer endlosen ersten Deck-Bahn 7 zwei Abroll-Einheiten 8 und eine nicht dargestellte Verbinde- und Schneideinheit auf. Der genaue Aufbau der erstem Splice-Einrichtung 3 ist in der DE 10 2006 003 200 A beschrieben. Die zweite Splice-Einrichtung 4 ist entsprechend der ersten Splice-Einrichtung 3 aufgebaut und weist zur Bereitstellung einer endlosen Material-Bahn 9 zwei zweite Abroll-Einheiten 10 auf.A corrugated board plant 1 has a first splice device 3, a second splice device 4, a corrugation device 5 and a first production device 6 for producing a single-sided laminated corrugated web 2. The first splicing device 3 has two unrolling units 8 and a connecting and cutting unit, not shown, for providing an endless first cover sheet 7. The exact structure of the first splice device 3 is in the DE 10 2006 003 200 A described. The second splicing device 4 is constructed in accordance with the first splicing device 3 and has two second unrolling units 10 for providing an endless material web 9.

Den Splice-Einrichtungen 3, 4 ist in einer Transport-Richtung 11 die Riffel-Einrichtung 5 nachgeordnet. Die Riffel-Einrichtung 5 dient zur Erzeugung einer endlosen Well-Bahn 12 aus der endlosen Material-Bahn 9. Die Riffel-Einrichtung 5 weist eine um eine erste Dreh-Achse 13 drehantreibbare erste Riffel-Walze 14 und eine um eine zweite Dreh-Achse 15 drehantreibbare zweite Riffel-Walze 16 auf. Die Riffel-Walzen 14, 16 bilden zum Durchführen und Riffeln der endlosen Material-Bahn 9 einen Spalt aus, wobei die Dreh-Achsen 13, 15 parallel zueinander verlaufen. An der zweiten Riffel-Walze 16 ist eine Mess-Einrichtung 17 zur Messung der Rotations-Geschwindigkeit der zweiten Riffel-Walze 16 angeordnet. Zum Beleimen und Verbinden der Well-Bahn 12 mit der ersten Deck-Bahn 7 zu der einseitig kaschierten Wellpappe-Bahn 2 weist die erste Produktions-Einrichtung 6 ein erstes Leimwerk 18 auf. Das erste Leimwerk 18 umfasst eine erste Leimauftrags-Walze 19, eine erste Leimdosierungs-Walze 20 und einen ersten Leim-Behälter 21. Der erste Leim-Behälter 21 begrenzt einen Behälter-Innenraum 22. Der Behälter-Innenraum 22 ist durch Leimdämme 23 in einen mittig angeordneten Leimraum 24 und seitlich angeordnete Freiräume 25 unterteilt. Der Leimraum 24 ist mit Leim 26 gefüllt. Die Leimdämme 23 liegen dicht gegen den Leim-Behälter 21 an, sodass der Leimraum 24 zu den Freiräumen 25 hin dicht ist.The splicing devices 3, 4 are arranged downstream of the corrugating device 5 in a transport direction 11. The corrugator device 5 serves to produce an endless corrugated web 12 from the endless material web 9. The corrugator device 5 has a first corrugating roller 14 rotatable about a first rotational axis 13 and a second corrugating roller 14 about a second rotational axis 15 rotatably driven second corrugating roller 16 on. The corrugating rolls 14, 16 form a gap for the passage and corrugation of the endless material web 9, wherein the rotation axes 13, 15 run parallel to one another. On the second corrugating roller 16, a measuring device 17 for measuring the rotational speed of the second corrugating roller 16 is arranged. For gluing and bonding the corrugated web 12 with the first cover web 7 to the corrugated web 2 laminated on one side, the first production device 6 has a first gluing unit 18. The first gluing unit 18 comprises a first glue application roller 19, a first glue metering roller 20 and a first glue container 21. The first glue container 21 defines a container interior 22. The container interior 22 is inserted through glue dams 23 into one centrally arranged glue space 24 and laterally arranged free spaces 25 divided. The glue space 24 is filled with glue 26. The glue dams 23 bear tightly against the glue container 21, so that the gluing space 24 is tight towards the free spaces 25.

Die Leimdämme 23 sind entlang einer Verlagerungs-Richtung 27, die quer zu der Transport-Richtung 11 verläuft, einzeln verlagerbar. An einem freien Ende weisen die Leimdämme 23 jeweils eine Gewinde-Hülse 28 auf, die mit einer zugehörigen Gewinde-Stange 29 zusammenwirkt. Die Gewinde-Stangen 29 sind an dem ersten Leim-Behälter 21 drehbar gelagert und jeweils mittels eines eigenen Antriebs 30 drehantreibbar. Die Leimdämme 23 definieren zwischen sich einen Abstand, der als Beleimbreite BL bezeichnet wird. Die erste Leimdosierungs-Walze 20 ist zum Aufnehmen von Leim 26 teilweise innerhalb des ersten Leim-Behälters 21 angeordnet. Die erste Leim-Dosierungswalze 20 liegt gegen die erste Leimauftrags-Walze 19 an und dient zum Ausbilden einer gleichmäßigen Leimschicht auf der ersten Leimauftrags-Walze 19. Zum Beleimen der Well-Bahn 12 bildet die erste Leimauftrags-Walze 19 mit der zweiten Riffel-Walze 16 einen Spalt zum Durchführen der Well-Bahn 12 aus. Zum Anpressen der mit Leim 26 versehenen Well-Bahn 12 gegen die erste Deck-Bahn 7 weist die erste Produktionseinrichtung 6 eine erste Anpress-Walze 31 auf.The glue dams 23 are individually displaceable along a displacement direction 27, which runs transversely to the transport direction 11. At a free end, the glue dams 23 each have a threaded sleeve 28 which cooperates with an associated threaded rod 29. The threaded rods 29 are rotatably mounted on the first glue container 21 and each rotatably driven by means of a separate drive 30. The glue dams 23 define therebetween a distance, which is referred to as Beleimbreite B L. The first size metering roller 20 is partially disposed within the first size container 21 for receiving glue 26. The first size metering roll 20 abuts against the first size coat roller 19 and serves to form a uniform size coat on the first size coat roller 19. For gluing the well line 12, the first size coat roll 19 forms with the second score line roll 16 a gap for performing the corrugated web 12 from. For pressing the provided with glue 26 corrugated web 12 against the first cover sheet 7, the first production device 6, a first pressure roller 31 on.

Zum Zwischenspeichern der einseitig kaschierten Wellpappe-Bahn 2 ist der ersten Produktions-Einrichtung 6 in Transport-Richtung 11 eine Speicher-Einrichtung 32 nachgeordnet. Die einseitig kaschierte Wellpappe-Bahn 2 wird in der Speicher-Einrichtung 32 von einem Speicher-Einrichtungs-Anfang 33 zu einem Speicher-Einrichtungs-Ende 34 transportiert, wobei die einseitig kaschierte Wellpappe-Bahn 2 Schleifen 35 ausbildet. Die Speicher-Einrichtung 32 ist tischartig ausgebildet und wird in der Fachsprache als Brücke bezeichnet.For temporarily storing the single-faced laminated corrugated web 2, the first production device 6 in the transport direction 11 is followed by a storage device 32. The single-faced laminated corrugated web 2 is transported in the storage device 32 from a storage device beginning 33 to a storage device end 34, wherein the single-faced corrugated web 2 forms loops 35. The memory device 32 is formed like a table and is referred to in the jargon as a bridge.

Der Speicher-Einrichtung 32 ist relativ zu der Transport-Richtung 11 eine Markierungs-Einrichtung 36 vorgeordnet. Die Markierungs-Einrichtung 36 dient zum Anbringen von Marken 37 auf die endlose Material-Bahn 9. Die Markierungs-Einrichtung 36 ist zwischen der zweiten Splice-Einrichtung 4 und der Riffel-Einrichtung 5 angeordnet, sodass die Marken 37 an eine Unterseite der endlosen Material-Bahn 9 anbringbar sind. Hinsichtlich des genauen Aufbaus und der genauen Funktionsweise der Markierungs-Einrichtung 36 wird auf die DE 10 2007 027 879.0 verwiesen.The memory device 32 is preceded by a marking device 36 relative to the transport direction 11. The marking device 36 serves to attach marks 37 to the endless material web 9. The marking device 36 is arranged between the second splicing device 4 and the corrugating device 5, so that the marks 37 are attached to an underside of the endless material -Bahn 9 are attachable. With regard to the exact structure and the exact operation of the marking device 36 is on the DE 10 2007 027 879.0 directed.

Zum Detektieren der Marken 37 ist der Speicher-Einrichtung 32 in der Transport-Richtung 11 eine Detektor-Einrichtung 38 nachgeordnet, wobei die Detektor-Einrichtung 38 zwischen der Speicher-Einrichtung 32 und einer zweiten Produktions-Einrichtung 39 angeordnet ist. Die Detektor-Einrichtung 38 weist einen optischen Detektor 40 auf, der an einem Detektor-Träger 41 angeordnet ist. Der Detektor-Träger 41 ist an dem Speicher-Einrichtungs-Ende 34 an der Speicher-Einrichtung 32 befestigt. Hinsichtlich des genauen Aufbaus und der genauen Funktionsweise der Detektor-Einrichtung 38 wird auf die DE 10 2007 027 879.0 verwiesen.For detecting the marks 37, the memory device 32 is followed by a detector device 38 in the transport direction 11, the detector device 38 being arranged between the memory device 32 and a second production device 39. The detector device 38 has an optical detector 40, which is arranged on a detector carrier 41. The detector carrier 41 is attached to the memory device end 34 on the memory device 32. With regard to the exact structure and the exact functioning of the detector device 38 is on the DE 10 2007 027 879.0 directed.

Die zweite Produktions-Einrichtung 39 dient zum Beleimen und Verbinden der einseitig kaschierten Wellpappe-Bahn 2 mit einer endlosen zweiten Deck-Bahn 42 zu einer zweiseitig kaschierten Wellpappe-Bahn 43. Die zweiseitig kaschierte Wellpappe-Ba.hn 43 weist eine Bahnbreite BB auf. Die zweite Produktions-Einrichtung 39 weist ein zweites Leimwerk 44 auf. Das zweite Leimwerk 44 ist entsprechend dem ersten Leimwerk 18 aufgebaut und weist eine zweite Leimauftrags-Walze 45, eine zweite Leimdosierungs-Walze 46 und einen zweiten Leim-Behälter 47 auf. Zum Anpressen der zweiten Deck-Bahn 42 an die mit Leim 26 versehene einseitig kaschierte Wellpappe-Bahn 2 ist ein Anpress-Tisch 48 und ein endloser Anpress-Gurt 49 vorgesehen, die einen Anpress-Spalt 50 ausbilden. Der Anpress-Gurt 49 ist über drei Gurt-Umlenk-Walzen 51 umgelenkt und antreibbar. Der Anpress-Tisch 48 ist zum Beheizen der zweiseitig kaschierten Wellpappe-Bahn 43 mit Heiz-Platten versehen.The second production device 39 serves for gluing and bonding the single-sided laminated corrugated web 2 with an endless second cover web 42 to a double-sided laminated corrugated web 43. The double-sided laminated corrugated cardboard base 43 has a web width B B , The second production device 39 has a second gluing unit 44. The second gluing unit 44 is constructed according to the first gluing unit 18 and has a second glue application roller 45, a second glue metering roller 46 and a second glue container 47. For pressing the second cover sheet 42 to the glue 26 provided on one side laminated corrugated web 2 a Anpress-table 48 and an endless pressure belt 49 is provided which form a Anpress gap 50. The pressure belt 49 is deflected by three belt deflection rollers 51 and driven. The pressing table 48 is provided with heating plates for heating the double-faced laminated corrugated board 43.

Zum Bereitstellen der endlosen zweiten Deck-Bahn 42 ist eine dritte Splice-Einrichtung 52 vorgesehen. Die dritte Splice-Einrichtung 52 ist entsprechend den Splice-Einrichtungen 3, 4 ausgebildet und weist entsprechende dritte Abroll-Einheiten 53 auf.To provide the endless second deck web 42, a third splice device 52 is provided. The third splicing device 52 is designed in accordance with the splicing devices 3, 4 and has corresponding third unrolling units 53.

Den Produktions-Einrichtungen 6, 39 ist in der Transport-Richtung 11 eine Rill-Einrichtung 54 und eine Längsschneide-Einrichtung 55 nachgeordnet. Die R.ill-Einrichtung 54 und die Längsschneide-Einrichtung 55 sind integriert als Längsschneide-/Rill-Einrichtu.ng 55, 54 ausgebildet. Die Rill-Einrichtung 54 weist eine erste Rill-Einheit 56 und eine zweite Rill-Einheit 57 auf. Die Rill-Einheiten 56, 57 weisen jeweils zwei Werkzeugbetten auf, die im Wesentlichen spiegelsymmetrisch zu der Wellpappe-Bahn 43 übereinander angeordnet sind. Die Werkzeugbetten sind verschwenkbar, sodass Rill-Werkzeuge 58 einzeln mit der Wellpappe-Bahn 43 in Eingriff bringbar sind. Die Rill-Werkzeuge 58 sind quer zu der Transport-Richtung 11 einzeln verlagerbar.The production devices 6, 39 is followed by a creasing device 54 and a longitudinal cutting device 55 in the transport direction 11. The R.ill device 54 and the longitudinal cutting device 55 are integrally formed as a longitudinal cutting / grooving device 55, 54. The creasing device 54 has a first creasing unit 56 and a second creasing unit 57. The creasing units 56, 57 each have two tool beds which are arranged one above the other in a substantially mirror-symmetrical manner with respect to the corrugated web 43. The tool beds are pivotable, so that scoring tools 58 individually engageable with the corrugated web 43 in engagement are. The creasing tools 58 are individually displaceable transversely to the transport direction 11.

Die Längsschneide-Einrichtung 55 weist eine erste Längsschneide-Einheit 59 und eine dieser nachgeordnete zweite Längsschneide-Einheit 60 auf. Zum Längsschneiden der zweiseitig kaschierten Wellpappe-Bahn 43 weisen die Längsschneide-Einheiten 59, 60 Schneid-Werkzeuge 61 auf, die an Werkzeugträgern angeordnet sind und einzeln mit der Wellpappe-Bahn 43 in Eingriff bringbar und einzeln quer zu der Transport-Richtung 11 verlagerbar sind. Hinsichtlich des genauen Aufbaus und der genauen Funktionsweise der Rill-Einrichtung 54 und der Längsschneide-Einrichtung 55 wird auf die DE 197 54 799 A (entspricht US 6,071,222 ) und die DE 101 31 832 A verwiesen.The longitudinal cutting device 55 has a first longitudinal cutting unit 59 and a second longitudinal cutting unit 60 arranged downstream of the latter. For longitudinal cutting of the double-sided laminated corrugated web 43, the longitudinal cutting units 59, 60 cutting tools 61 which are arranged on tool carriers and individually engageable with the corrugated web 43 and individually transversely to the transport direction 11 are displaced , With regard to the exact structure and the exact operation of the creasing device 54 and the longitudinal cutting device 55 is on the DE 197 54 799 A (equivalent to US 6,071,222 ) and the DE 101 31 832 A directed.

Die Längsschneide-Einrichtung 55 dient zum Längsschneiden der zweiseitig kaschierten Wellpappe-Bahn 43 in mehrere Teil-Wellpappe-Bahnen 62. Die jeweils zwei äußeren Schneid-Werkzeuge 61 der Längsschneide-Einheiten 59, 60 dienen zum randseitigen Längsschneiden, sodass Randstreifen 63 von der Wellpappe-Bahn 43 abtrennbar sind. Die äußeren Schneid-Werkzeuge 61 der Längsschneide-Einheiten 59, 60 definieren jeweils einen Werkzeug-Abstand BW, der durch Verlagerung der äußeren Schneid-Werkzeuge 61 quer zu der Transport-Richtung 11 veränderbar ist.The longitudinal cutting device 55 is used for longitudinal cutting of the double-sided laminated corrugated board web 43 into a plurality of partial corrugated webs 62. The two outer cutting tools 61 of the longitudinal cutting units 59, 60 are used for edge-side longitudinal cutting, so that edge strips 63 of the corrugated board -Bahn 43 are separable. The outer cutting tools 61 of the longitudinal cutting units 59, 60 each define a tool spacing B W , which is variable by displacement of the outer cutting tools 61 transversely to the transport direction 11.

Der Längsschneide-Einrichtung 55 ist in Transport-Richtung 11 eine Querschneide-Einrichtung 64 nachgeordnet. Die Querschneide-Einrichtung 64 weist eine drehantreibbare Messerbalken-Walze 65 auf, die sich über die gesamte Bahnbreite BB erstreckt. An einer der Messerbalken-Walze 65 relativ zu der Wellpappe-Bahn 43 gegenüber liegenden Seite sind mehrere Auflage-Einheiten 66 quer zu der Transport-Richtung 11 nebeneinander angeordnet. Die Auflage-Einheiten 66 sind jeweils mit einer Kolben-Zylinder-Einheit 67 verbunden, sodass die Auflage-Einheiten 66 entlang der Transport-Richtung 11 einzeln verlagerbar sind. Die Querschneide-Einrichtung 64 dient zum teilweisen Querschneiden der Wellpappe-Bahn 43 bei einem Formatwechsel. Hinsichtlich des genauen Aufbaus und der genauen Funktionsweise der Querscheide-Einrichtung 64 wird auf die EP 1 652 639 A (entsprechend US 2006/0086217 A ) verwiesen.The longitudinal cutting device 55 is downstream of a cross-cutting device 64 in the transport direction 11. The cross-cutting device 64 has a rotatable knife bar roller 65, which extends over the entire web width B B. On one side of the knife bar roller 65, opposite the side of the corrugated web 43, there are several support units 66 side by side transversely to the transport direction 11 arranged. The support units 66 are each connected to a piston-cylinder unit 67, so that the support units 66 along the transport direction 11 are individually displaced. The cross-cutting device 64 serves to partially cross-cut the corrugated web 43 in a format change. With regard to the exact structure and the exact operation of the transverse shearing device 64 is on the EP 1 652 639 A (corresponding US 2006/0086217 A ).

Der Querschneide-Einrichtung 64 ist in der Transport-Richtung 11 eine Randstreifen-Abführ-Einheit 68 nachgeordnet. Die Randstreifen-Abführ-Einheit 68 dient zum Entfernen der abgetrennten Randstreifen 63.The cross-cutting device 64 is arranged in the transport direction 11 downstream of a edge strip-discharge unit 68. The edge strip removal unit 68 serves to remove the separated edge strips 63.

Der Randstreifen-Abführ-Einheit 68 ist in der Transport-Richtung 11 eine Weiche 69 nachgeordnet. Die Weiche 69 weist einen Zuführ-Tisch 70 und zwei übereinander angeordnete Abführ-Tische 71 auf. Zwischen dem Zuführ-Tisch 70 und den Abführ-Tischen 71 ist ein Weichen-Element 72 angeordnet, das zur Aufteilung der Teil-Wellpappe-Bahnen 62 in zwei Ebenen dient. Der Weiche 69 sind in bekannter Weise weitere Querschneide-Einrichtungen zum Querschneiden der Teil-Wellpappe-Bahnen 62 zu Wellpappe-Bögen und eine Stapel-Einrichtung nachgeordnet.The edge strip removal unit 68 is downstream of a switch 69 in the transport direction 11. The switch 69 has a feed table 70 and two discharge tables 71 arranged one above the other. Between the feed table 70 and the discharge tables 71, a switch element 72 is arranged, which serves for the division of the partial corrugated cardboard webs 62 in two planes. The switch 69 are arranged in a known manner further cross-cutting devices for cross-cutting the partial corrugated webs 62 to corrugated sheets and a stacking device.

Die zwischen der ersten Produktions-Einrichtung 6 und der Längsschneide-Einrichtung 55 befindliche Wellpappe-Bahn 2, 43 weist eine erste Bahnlänge L1 auf. Die erste Bahnlänge L1 setzt sich zusammen aus einer ersten Teil-Bahnlänge L11, die die Länge der Wellpappe-Bahn 2 zwischen der ersten Produktions-Einrichtung 6 und dem Speicher-Einrichtungs-Ende 34 der Speicher-Einrichtung 32 beschreibt, und einer zweiten Teil-Bahnlänge L12, die die Länge der Wellpappe-Bahn 2, 43 zwischen dem Speicher-Einrichtungs-Ende 34 und der Längsschneide-Einrichtung 55 beschreibt. Die erste Teil-Bahnlänge L11 ist aufgrund der zwischengespeicherten Wellpappe-Bahn 2 variabel, wohingegen die zweite Teil-Bahnlänge L12 konstant und bekannt ist. Die zwischen der zweiten Produktions-Einrichtung 39 und der Längsschneide-Einrichtung 55 befindliche Wellpappe-Bahn 2, 43 weist eine zweite Bahnlänge L2 auf. Die zweite Bahnlänge L2 ist konstant und bekannt.The corrugated web 2, 43 located between the first production device 6 and the longitudinal cutting device 55 has a first web length L 1 . The first web length L 1 is composed of a first partial web length L 11 , which describes the length of the corrugated web 2 between the first production device 6 and the memory device end 34 of the memory device 32, and a second Part length L 12 describing the length of the corrugated web 2, 43 between the storage device end 34 and the slitter 55. The first partial web length L 11 is variable due to the cached corrugated web 2, whereas the second partial web length L 12 is constant and known. The corrugated web 2, 43 located between the second production device 39 and the longitudinal cutting device 55 has a second web length L 2 . The second track length L 2 is constant and known.

Zur Steuerung der Wellpappe-Anlage 1 ist eine elektronische Steuer-Einrichtung 73 vorgesehen, die mit den Splice-Einrichtungen 3, 4, 52, mit den Produktions-Einrichtungen 6, 39, mit der Mess-Einrichtung 17, mit der Markierungs-Einrichtung 36, mit der Detektor-Einrichtung 38, mit der Längsschneide-/Rill-Einrichtung 55, 54 und mit der Querschneide-Einrichtung 64 in Signalverbindung steht. Die Signalverbindungen sind in den Figuren 1 und 2 mittels gestrichelter Linie dargestellt. Die Steuer-Einrichtung 73 ist derart ausgebildet, dass die erste und zweite Bahnlänge L1, L2 ermittelbar sind und in Abhängigkeit der ersten und zweiten Bahnlänge L1, L2 die Beleimbreiten BB des ersten und zweiten Leimwerkes 18, 44 veränderbar sind. Die Steuer-Einrichtung 73 ist weiterhin derart ausgebildet, dass die Schneid-Werkzeuge 61 der Längsschneide-Einrichtung 55 ansteuerbar sind und der Werkzeug-Abstand BW der äußeren Schneid-Werkzeuge 61 an die Beleimbreite BL der Leimwerke 18, 44 anpassbar ist.To control the corrugated board 1, an electronic control device 73 is provided with the splice devices 3, 4, 52, with the production facilities 6, 39, with the measuring device 17, with the marking device 36th , is in signal communication with the detector means 38, with the slitter / groove means 55, 54 and with the chopper means 64. The signal connections are in the FIGS. 1 and 2 represented by a dashed line. The control device 73 is designed in such a way that the first and second web lengths L 1 , L 2 can be determined and the web widths B B of the first and second gluing units 18, 44 can be varied as a function of the first and second web lengths L 1 , L 2 . The control device 73 is further designed such that the cutting tools 61 of the longitudinal cutting device 55 can be controlled and the tool spacing B W of the outer cutting tools 61 can be adapted to the glue width B L of the gluing units 18, 44.

Nachfolgend wird die Funktionsweise der Wellpappe-Anlage 1 anhand eines Formatwechsels beschrieben. Ein erster Auftrag A1 weist eine erste Auftragslänge LA1 und eine erste Auftragsbreite BA1 auf. Ein nachfolgender zweiter Auftrag A2 weist eine zweite Auftragslänge LA2 und eine zweite Auftragsbreite BA2 auf, die sich von der ersten Auftragslänge LA1 und von der ersten Auftragsbreite BA1 unterscheiden.Below, the operation of the corrugated board 1 will be described by means of a format change. A first order A 1 has a first order length L A1 and a first order width B A1 . A subsequent second order A 2 has a second order length L A2 and a second order width B A2 , which differ from the first order length L A1 and from the first order width B A1 .

Die erste Splice-Einrichtung 3 erzeugt die endlose erste Deck-Bahn 7, die der ersten Produktions-Einrichtung 6 zugeführt wird. Die zweite Splice-Einrichtung 4 erzeugt die endlose Material-Bahn 9, die zunächst der Markierungs-Einrichtung 36 zugeführt wird. Die Markierungs-Einrichtung 36 erzeugt auf der Unterseite der Material-Bahn 9 eine Marke 37. Figur 7 zeigt eine Marke 37, die beispielsweise als Farb-Marke ausgebildet ist und mittels eines festen Farbstoffes, wie beispielsweise Kreide, erzeugt wurde. Während des Markierungsvorgangs sendet die Markierungs-Einrichtung 36 ein Signal an die Steuer-Einrichtung 73.The first splice device 3 generates the endless first cover sheet 7, which is fed to the first production device 6. The second splice device 4 produces the endless material web 9, which is first supplied to the marking device 36. The marking device 36 generates a mark 37 on the underside of the material web 9. FIG. 7 shows a mark 37 which is formed for example as a color mark and by means of a solid dye, such as chalk, was generated. During the marking process, the marking device 36 sends a signal to the control device 73.

Die markierte Material-Bahn 9 wird der Riffel-Einrichtung 5 zugeführt, wobei die Riffel-Einrichtung 5 aus der Material-Bahn 9 die Well-Bahn 12 erzeugt. Die Well-Bahn 12 wird in der ersten Produktions-Einrichtung 6 in einem Beleim-Bereich 74 mit Leim 26 versehen und mit der ersten Deck-Bahn 7 zu der einseitig kaschierten Wellpappe-Bahn 2 verklebt. Der Beleim-Bereich 74 weist eine der Beleimbreite BL des ersten Leimwerkes 18 entsprechende Breite auf. Die Mess-Einrichtung 17 misst ständig die Rotations-Geschwindigkeit der zweiten Riffel-Walze 16 und sendet die gemessenen Geschwindigkeits-Messwerte an die Steuer-Einrichtung 73.The marked material web 9 is fed to the corrugator device 5, wherein the corrugator device 5 generates the corrugated web 12 from the material web 9. The corrugated web 12 is provided in the first production device 6 in a Beleim area 74 with glue 26 and bonded to the first cover sheet 7 to the one-sided laminated corrugated web 2. The gluing area 74 has a width corresponding to the glue width B L of the first gluing unit 18. The measuring device 17 constantly measures the rotational speed of the second corrugating roller 16 and sends the measured speed measured values to the control device 73.

Zum Bearbeiten des ersten Auftrags A1 wurden die Leimbreiten BL der Leimwerke 18, 44 an die erste Auftragsbreite BA1 angepasst. Die Steuer-Einrichtung 73 hat hierzu die Antriebe 30 angesteuert und die Leimdämme 23 derart entlang der Verlagerungs-Richtung 27 verlagert, dass die Beleimbreiten BL der ersten Auftragsbreite BA1 entsprechen. Weiterhin hat die Steuer-Einrichtung 73 die Längsschneide-Einrichtung 55 derart angesteuert, dass der Werkzeug-Abstand BW der äußeren Schneid-Werkzeuge 61 der ersten Auftragsbreite BA1 entspricht, sodass die Randstreifen 63 entfernt werden. Die Randstreifen 63 sind im Wesentlichen nicht mit Leim 26 versehen, da die Beleimbreiten BL der Leimwerke 18, 44 der ersten Auftragsbreite BA1 entsprechen, die kleiner ist als die Bahnbreite BB. Ein randseitiges Austreten von Leim 26 wird somit verhindert.For processing the first job A 1 , the glue widths B L of the gluing units 18, 44 were adapted to the first application width B A1 . For this purpose, the control device 73 has actuated the drives 30 and displaces the glue dams 23 along the direction of displacement 27 such that the glue widths B L correspond to the first application width B A1 . Furthermore, the control device 73 has controlled the longitudinal cutting device 55 such that the tool spacing B W of the outer cutting tools 61 corresponds to the first application width B A1 , so that the edge strips 63 are removed. The edge strips 63 are substantially not with glue 26 provided because the Beleimbreiten B L of the Glue Units 18, 44 correspond to the first application width B A1 , which is smaller than the web width B B. A marginal leakage of glue 26 is thus prevented.

Nach dem Anbringen der Marke 37 wird die einseitig kaschierte Wellpappe-Bahn 2 der Speicher-Einrichtung 32 zugeführt, wo diese in Schleifen 35 zwischengespeichert wird und somit einen Puffer ausbildet. Die einseitig kaschierte Wellpappe-Bahn 2 wird in der Transport-Richtung 11 von dem Speicher-Einrichtungs-Anfang 33 zu dem Speicher-Einrichtungs-Ende 34 transportiert und dort der Detektor-Einrichtung 38 zugeführt.After attaching the mark 37, the single-faced laminated corrugated web 2 of the memory device 32 is supplied, where it is buffered in loops 35 and thus forms a buffer. The single-faced laminated corrugated web 2 is transported in the transport direction 11 from the memory device beginning 33 to the memory device end 34 and fed there to the detector device 38.

In der Detektor-Einrichtung 38 wird mittels des optischen Detektors 40 die angebrachte Marke 37 detektiert, wobei bei dem Detektionsvorgang ein elektrisches Signal an die Steuer-Einrichtung 73 gesendet wird. Mittels des Zeitabstandes der elektrischen Signale, die beim Anbringen und Detektieren der Marke 37 erzeugt werden, berechnet die Steuer-Einrichtung 73 zusammen mit der gemessenen Rotations-Geschwindigkeit der zweiten Riffel-Walze 16 die erste Teil-Bahnlänge L11 der zwischen der ersten Produktions-Einrichtung 6 und dem Speicher-Einrichtungs-Ende 34 befindlichen Wellpappe-Bahn 2. Der beschriebene Markierungs- und Detektionsvorgang wird periodisch wiederholt, sodass fortwährend Marken 37 angebracht und detektiert werden, und die Berechnung der ersten Teil-Bahnlänge L11 in kurzen Zeitabständen wiederholt werden kann. Somit ist ständig die aktuelle erste Teil-Bahnlänge L11 bekannt. Zusammen mit der konstanten und bekannten zweiten Teil-Bahnlänge L12 berechnet die Steuer-Einrichtung 73 ständig die aktuelle erste Bahnlänge L1 der zwischen der ersten Produktions-Einrichtung 6 und der Längsschneide-Einrichtung 55 befindlichen Wellpappe-Bahn 2, 43. Die konstante und bekannte zweite Bahnlänge L2 liegt in der Steuer-Einrichtung 73 vor.In the detector device 38, the attached mark 37 is detected by means of the optical detector 40, wherein in the detection process, an electrical signal is sent to the control device 73. By means of the time interval of the electrical signals generated during the application and detection of the mark 37, the control device 73, together with the measured rotational speed of the second corrugating roller 16, calculates the first partial track length L 11 between the first production line. Device 6 and the memory device end 34 located corrugated web 2. The described marking and detection process is repeated periodically, so continuously marks 37 are mounted and detected, and the calculation of the first partial web length L 11 are repeated at short intervals can. Thus, the current first partial web length L 11 is constantly known. Together with the constant and known second partial web length L 12 , the control device 73 constantly calculates the current first web length L 1 of the corrugated web 2, 43 located between the first production device 6 and the longitudinal cutting device 55 known second track length L 2 is present in the control device 73.

Nach dem Detektieren der Marke 37 wird die einseitig kaschierte Wellpappe-Bahn 2 der zweiten Produktions-Einrichtung 39 zugeführt. In der zweiten Produktions-Einrichtung 39 wird die Well-Bahn 12 der einseitig kaschierten Wellpappe-Bahn 2 in einem weiteren Beleim-Bereich 74 mit Leim 26 versehen, wobei der Beleim-Bereich 74 eine der Beleimbreite BB des zweiten Leimwerkes 44 entsprechende Breite aufweist. Mittels des Anpress-Tisches 48 und des Anpress-Gurtes 49 wird die mit Leim 26 versehene einseitig kaschierte Wellpappe-Bahn 2 mit der zweiten Dick-Bahn 42 zu der zweiseitig kaschierten Wellpappe-Bahn 43 verbunden.After detecting the mark 37, the single-faced laminated corrugated web 2 of the second production device 39 is supplied. In the second production device 39, the corrugated web 12 of the corrugated web 2 laminated on one side is provided with glue 26 in a further gluing area 74, the gluing area 74 having a width corresponding to the glue width B B of the second gluing plant 44 , By means of the pressure-table 48 and the pressure-belt 49, the one-sided laminated corrugated web 2 provided with glue 26 is connected to the second thick web 42 to the double-sided laminated corrugated web 43.

Die zweiseitig kaschierte Wellpappe-Bahn 43 wird anschließend der Längsschneide-/Rill-Einrichtung 55, 54 und der Querschneide-Einrichtung 64 zugeführt, wo Längsschnitte 75 und diese verbindende Querschnitte 76 erzeugt werden. Die äußeren Längsschnitte 75 trennen die Randstreifen 63 von den Teil-Wellpappe-Bahnen 62 ab. Die abgetrennten Randstreifen 63 werden mittels der Randstreifen-Abführ-Einheit 68 abgeführt und die Teil-Wellpappe-Bahnen 62 zur Weiterverarbeitung über die Weiche 69 geführt und in zwei Ebenen aufgeteilt.The double-faced laminated corrugated web 43 is then fed to the slitter / scorer 55, 54 and the cross-cutter 64, where longitudinal cuts 75 and cross-sections 76 connecting them are made. The outer longitudinal cuts 75 separate the edge strips 63 from the part corrugated webs 62. The separated edge strips 63 are removed by means of the edge strip removal unit 68 and the part corrugated board webs 62 for further processing via the switch 69 and divided into two levels.

Zur Bearbeitung des zweiten Auftrags A2 ist ein Formatwechsel erforderlich. Anhand der Bahn-Geschwindigkeit der Wellpappe-Bahn 2, 43 nach der Speicher-Einrichtung 32, die mittels einer nicht dargestellten Mess-Einrichtung ermittelt wird, berechnet die Steuer-Einrichtung 73 ständig eine erste Teil-Auftragslänge LA11, die bereits in der Längsschneide-Einrichtung 55 bearbeitet wurde, und eine zweite Teil-Auftragslänge LA12, die noch durch die Längsschneide-Einrichtung 55 zu bearbeiten ist. Bei dem Formatwechsel steuert die Steuer-Einrichtung 73 zunächst das erste Leimwerk 18 an, wobei mittels der Antriebe 30 die Leimdännme 23 entlang der Verlagerungs-Richtung 27 derart verlagert werden, dass die Beleimbreite BL der zweiten Auftragsbreite BA2 entspricht. Das Verändern der Beleimbreite BL erfolgt in Abhängigkeit der mittels der Steuer-Einrichtung 73 ermittelten ersten Bahnlänge L1, und zwar zeitlich genau dann, wenn die erste Bahnlänge L1 der noch zu bearbeitenden zweiten Teil-Auftragslänge LA12 des ersten Auftrages A1 entspricht. Die Well-Bahn 12 wird an der der ersten Deck-Bahn 7 zugewandten Seite somit in einem Beleim-Bereich 74 beleimt, der eine der Beleimbreite BL entsprechende Breite aufweist, wobei die Beleimbreite BL kleiner als die Bahnbreite BB ist.To edit the second job A 2 , a format change is required. Based on the web speed of the corrugated web 2, 43 after the memory device 32, which is determined by means of a measuring device, not shown, the control device 73 constantly calculates a first part-order length L A11 , already in the longitudinal cutting Means 55, and a second part-order length L A12 which is still to be processed by the slitter 55. In the format change, the control device 73 first controls the first gluing unit 18, wherein the glue drums 23 are displaced along the displacement direction 27 by means of the drives 30 such that the glue width B L of the second order width B A2 corresponds. The changing of the Beleimbreite B L takes place in dependence of the determined by means of the control device 73 first track length L 1 , namely in time exactly when the first track length L 1 of the still to be processed second part-order length LA 12 of the first order A 1 corresponds , The corrugated web 12 is glued on the side facing the first cover sheet 7 in a gluing area 74 which has a width corresponding to the glue width B L , wherein the glue width B L is smaller than the web width B B.

Nach dem Ansteuern des ersten Leimwerkes 18 wird zeitlich nachgeordnet das zweite Leimwerk 44 mittels der Steuer-Einrichtung 73 angesteuert. Mittels der Antriebe 30 werden die Leimdämme 23 des zweiten Leimwerkes 44 derart entlang der Verlagerungs-Richtung 27 verlagert, dass die Beleimbreite BL des zweiten Leimwerkes 44 der zweiten Auftragsbreite BA2 entspricht. Das Ansteuern des zweiten Leimwerkes 44 erfolgt zeitlich genau dann, wenn die mittels der Steuer-Einrichtung 73 ermittelte zweite Bahnlänge L2 der noch abzuarbeitenden zweiten Teil-Auftragslänge LA12 des ersten Auftrages A1 entspricht. Das Beleimen der Well-Bahn 12 an der der zweiten Deck-Bahn 42 zugewandten Seite erfolgt somit in einem Beleim-Bereich 74, der eine der Beleimbreite BL des zweiten Leimwerks 44 entsprechende Breite aufweist. Das Verändern der Beleimbreite BL des ersten und zweiten Leimwerkes 18, 44 erfolgt zwar zeitlich nacheinander, jedoch stimmen die Beleim-Bereiche 74 an beiden Seiten der Well-Bahn 12 örtlich überein, da das Verändern der Beleimbreite BL in den Leimwerken 18, 44 in Abhängigkeit der Bahnlängen L1, L2 erfolgt.After the activation of the first gluing unit 18, the second gluing unit 44 is actuated in chronological order by means of the control device 73. By means of the drives 30, the glue dams 23 of the second gluing unit 44 are displaced along the displacement direction 27 such that the glue width B L of the second gluing unit 44 corresponds to the second application width B A2 . The driving of the second gluing unit 44 occurs in time precisely when the second web length L 2 determined by means of the control device 73 corresponds to the second part-order length L A12 of the first job A 1 still to be processed. The gluing of the corrugated web 12 on the side facing the second cover web 42 thus takes place in a gluing region 74, which has a width corresponding to the glue width B L of the second gluing unit 44. Although changing the Beleimbreite B L of the first and second gluing unit 18, 44 takes place in succession, however, the gluing areas 74 coincide locally on both sides of the corrugated web 12, since changing the Beleimbreite B L in the gluing units 18, 44th depending on the track lengths L 1 , L 2 takes place.

Bei dem Formatwechsel werden nach dem Verändern der Beleimbreite BL des zweiten Leimwerkes 44 die Schneid-Werkzeuge 61 der Längsschneide-Einrichtung 55 mittels der Steuer-Einrichtung 73 quer zu der Transport-Richtung 11 verlagert. Die äußeren Schneid-Werkzeuge 61 werden derart quer zu der Transport-Richtung 11 verlagert, dass deren Werkzeug-Abstand BW der Auflragsbreite BA2 des zweiten Auftrages A2 entspricht. Das Verlagern der äußeren Schneid-Werkzeuge 61 erfolgt zeitlich genau dann, wenn der Auftrag A1 in der Längsschneide-Einrichtung 55 vollständig abgearbeitet ist, also wenn die zweite Teil-Auftragslänge LA12 genau Null ist. Die äußeren Schneid-Werkzeuge 61 trennen somit die im Wesentlichen unbeleimten Randstreifen 63 ab. Ein randseitiges Austreten von Leim 26 wird somit auch bei der Bearbeitung des zweiten Auftrags A2 vermieden.In the format change after changing the Beleimbreite B L of the second Glue 44, the cutting tools 61 of the slitter 55 by means of the control device 73 transversely to the transport direction 11 relocated. The outer cutting tools 61 are displaced transversely to the transport direction 11 such that their tool spacing B W corresponds to the bearing width B A2 of the second job A 2 . The displacement of the outer cutting tools 61 takes place in time exactly when the job A 1 in the longitudinal cutting device 55 is completely processed, ie when the second part-order length L A12 is exactly zero. The outer cutting tools 61 thus separate the substantially unglued edge strips 63 from. A marginal leakage of glue 26 is thus avoided even when processing the second job A 2 .

Durch das Vermeiden des randseitigen Austretens von Leim 26 werden Bauteile der Wellpappe-Anlage 1, wie beispielsweise die Riffel-Walzen 14, 16 oder die Heiz-Platten des Anpress-Tisches 48 weitestgehend nicht verunreinigt, sodass keine Stillstandszeiten der Wellpappe-Anlage 1 aufgrund von Reinigungsarbeiten entstehen.By avoiding the edge leakage of glue 26 components of the corrugated board 1, such as the corrugated rollers 14, 16 or the heating plates of the Anpress-table 48 are largely contaminated, so no downtime of the corrugated board 1 due to Cleaning work arise.

Die Ermittlung der Bahnlängen L1, L2 kann auch zum Synchronisieren von Verbindungsnähten genutzt werden, die bei dem Herstellen der endlosen Deck-Bahnen 7, 42 und der endlosen Material-Bahn 9 entstehen. Hinsichtlich des Synchronisierens dieser Verbindungsnähte wird auf die DE 10 2007 027 879.0 verwiesen.The determination of the track lengths L 1 , L 2 can also be used for synchronizing connecting seams, which arise in the manufacture of the endless cover sheets 7, 42 and the endless material web 9. With regard to the synchronization of these seams is on the DE 10 2007 027 879.0 directed.

Die vorliegende Erfindung kann auch auf Wellpappe-Bahnen mit mehr als drei Lagen, beispielsweise auf fünflagige Wellpappe-Bahnen, angewendet werden. In diesem Fall müssen die Bahnlängen aller zwischen den Produktions-Einrichtungen und der Längsschneide-Einrichtung befindlichen Wellpappe-Bahnen ermittelt werden.The present invention may also be applied to corrugated webs having more than three layers, for example, to five-ply corrugated webs. In this case, the web lengths of all corrugated webs between the production equipment and the slitter must be determined.

Claims (10)

  1. Corrugated cardboard machine for production of an endless web of corrugated cardboard, the corrugated cardboard machine comprising
    a. at least one production device (6, 39) for producing an endless web of corrugated cardboard (2, 43) from a corrugated web (12) and at least one liner (7, 24), wherein
    i. the at least one production device (6, 39) comprises at least one gluing device (18, 44) for applying glue to the corrugated web (12), and wherein
    ii. the at least one gluing device (18, 44) is designed such that an application width (BL) is variable crosswise to a direction of conveyance (11),
    b. a longitudinal cutting device (55) disposed downstream of the at least one production device (6, 39) when seen in the direction of conveyance (11) for longitudinal cutting of the endless web of corrugated cardboard (43), characterized by
    c. an electronic control device (73) which is designed such that
    i. at least one web length (L1, L2) of the web of corrugated cardboard (2, 43) between the at least one production device (6, 39) and the longitudinal cutting device (55) is detectable, and
    ii. the application width (BL) is variable in dependence on the at least one web length (L1, L2).
  2. Corrugated cardboard machine according to claim 1, characterized in that the longitudinal cutting device (55) comprises two cutting tools (61) which are displaceable crosswise to the direction of conveyance (11) for longitudinal cutting at the edges of the endless web of corrugated cardboard (43).
  3. Corrugated cardboard machine according to claim 2, characterized in that the control device (73) is designed such that a tool distance (BW) of the cutting tools (61) is adaptable to the application width (BL).
  4. Corrugated cardboard machine according to one of claims 1 to 3, characterized in that a first production device (6) is provided for producing a single-face web of corrugated cardboard (2).
  5. Corrugated cardboard machine according to claim 4, characterized in that the control device (73) is designed such that a first web length (L1) of the web of corrugated cardboard (2, 43) between the first production device (6) and the longitudinal cutting device (55) is detectable and the application width (BL) of a first gluing device (18) is variable in dependence on the first web length (L1).
  6. Corrugated cardboard machine according to claim 4 or 5, characterized in that a storage device (32) for temporary storage of the single-face web of corrugated cardboard (2) is arranged between the first production device (6) and the longitudinal cutting device (55).
  7. Corrugated cardboard machine according to claim 6, characterized in that a marking device (36) is provided upstream of the storage device (32) when seen in the direction of conveyance (11) for detecting the first web length (L1) and a detector device (38) is provided downstream of the storage device (32) when seen in the direction of conveyance (11).
  8. Corrugated cardboard machine according to one of claims 4 to 7, characterized in that a second production device (39) is provided downstream of the first production device (6) when seen in the direction of conveyance (11) for producing a double-face web of corrugated cardboard (43).
  9. Corrugated cardboard machine according to claim 8, characterized in that the control device (73) is designed such that a second web length (L2) of the web of corrugated cardboard (2, 43) between the second production device (39) and the longitudinal cutting device (55) is detectable and the application width (BL) of a second gluing device (44) is variable in dependence on the second web length (L2).
  10. Method of producing an endless web of corrugated cardboard, the method comprising the following steps:
    - providing a corrugated web (12) and at least one liner (7, 42),
    - applying glue to an application zone (74) of the corrugated web (12) by means of at least one production device (6, 39), wherein the application zone (74) has an application width (BL) crosswise to a direction of conveyance (11),
    - joining the corrugated web (12) coated with glue (26) to the at least one liner (7, 42) to form an endless web of corrugated cardboard (2, 43) by means of the at least one production device (6, 39),
    - detecting at least one web length (L1, L2) of the web of corrugated cardboard (2, 43) between the at least one production device (6, 39) and a longitudinal cutting device (55),
    - changing the application width (BL) in dependence on the at least one detected web length (L1, L2), and
    - longitudinal cutting of the web of corrugated cardboard (43) by means of the longitudinal cutting device (55).
EP08017074A 2007-11-14 2008-09-27 Corrugated cardboard system and method for manufacturing an infinite corrugated cardboard sheet Not-in-force EP2060388B1 (en)

Applications Claiming Priority (1)

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DE102007054194A DE102007054194B3 (en) 2007-11-14 2007-11-14 Corrugated board plant and process for producing an endless corrugated web

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EP2060388A2 EP2060388A2 (en) 2009-05-20
EP2060388A3 EP2060388A3 (en) 2011-03-23
EP2060388B1 true EP2060388B1 (en) 2012-04-25

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EP (1) EP2060388B1 (en)
AT (1) ATE554916T1 (en)
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JP2016043488A (en) * 2014-08-19 2016-04-04 株式会社Ｉｓｏｗａ Pasting device
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US20090120563A1 (en) 2009-05-14
EP2060388A3 (en) 2011-03-23
DE102007054194B3 (en) 2009-05-14
ATE554916T1 (en) 2012-05-15
EP2060388A2 (en) 2009-05-20
US7832441B2 (en) 2010-11-16

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