EP1976789A1 - Dispositif de freinage de feuilles, notamment de feuilles de papier ou de carton destinées à être déposées sur une pile - Google Patents

Dispositif de freinage de feuilles, notamment de feuilles de papier ou de carton destinées à être déposées sur une pile

Info

Publication number
EP1976789A1
EP1976789A1 EP06829279A EP06829279A EP1976789A1 EP 1976789 A1 EP1976789 A1 EP 1976789A1 EP 06829279 A EP06829279 A EP 06829279A EP 06829279 A EP06829279 A EP 06829279A EP 1976789 A1 EP1976789 A1 EP 1976789A1
Authority
EP
European Patent Office
Prior art keywords
sheets
clamping
sheet
zones
clamping elements
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.)
Granted
Application number
EP06829279A
Other languages
German (de)
English (en)
Other versions
EP1976789B1 (fr
Inventor
Karl Thievessen
Dirk Vössing
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.)
Bielomatik Jagenberg GmbH and Co KG
Original Assignee
Bielomatik Jagenberg GmbH and Co KG
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 Bielomatik Jagenberg GmbH and Co KG filed Critical Bielomatik Jagenberg GmbH and Co KG
Publication of EP1976789A1 publication Critical patent/EP1976789A1/fr
Application granted granted Critical
Publication of EP1976789B1 publication Critical patent/EP1976789B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68Reducing the speed of articles as they advance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66Advancing articles in overlapping streams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66Advancing articles in overlapping streams
    • B65H29/6609Advancing articles in overlapping streams forming an overlapping stream
    • B65H29/6618Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed
    • B65H29/6627Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed in combination with auxiliary means for overlapping articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/42Piling, depiling, handling piles
    • B65H2301/421Forming a pile
    • B65H2301/4212Forming a pile of articles substantially horizontal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/10Rollers
    • B65H2404/13Details of longitudinal profile
    • B65H2404/132Details of longitudinal profile arrangement of segments along axis
    • B65H2404/1321Segments juxtaposed along axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/10Rollers
    • B65H2404/14Roller pairs
    • B65H2404/141Roller pairs with particular shape of cross profile
    • B65H2404/1411D-shape / cylindrical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00Means using fluid
    • B65H2406/30Suction means
    • B65H2406/31Suction box; Suction chambers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/17Nature of material
    • B65H2701/176Cardboard
    • B65H2701/1764Cut-out, single-layer, e.g. flat blanks for boxes
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2092Means to move, guide, or permit free fall or flight of product
    • Y10T83/2094Means to move product at speed different from work speed

Definitions

  • Apparatus for braking sheets to be deposited on a stack in particular paper or cardboard sheets
  • the invention relates to a device for braking sheets to be deposited on a stack, in particular paper or cardboard sheets, as well as a machine for cross-cutting material webs, which contains a braking device for the sheets produced by cross-cutting.
  • a device of the generic type is known in which the braking device has on both sides of the transport plane of the arches arranged clamping elements with circumferential clamping zones, wherein the clamping zones at least one side during circulation time to reach the inlet plane of the sheets, so that a Arch between two clamping zones can be clamped.
  • the clamping elements are driven by a non-uniform rotary drive so that the clamping zones when applied to the sheets have the inlet velocity of the sheets. Subsequently, the speed of the clamping zones is reduced to the desired discharge speed of the sheets. After releasing the clamping of the sheets and before clamping the subsequent sheets, the clamping zones are accelerated by the non-uniform drive back to the inlet speed of the sheets.
  • the invention has for its object to provide a generic braking device that allows sheets of high speeds of for example 400 m / min to slow down to a significantly lower deposition rate of, for example, 80 m / min safely and without markers so that a scale flow of overlapping sheets forms, which can then be stored without problems on a stack.
  • rotatably drivable clamping elements are arranged over the width of the device, which have clamping zones on a part of their circumference which at times extend as far as the entry plane of the sheets during circulation,
  • a rotating counter-element is arranged, so that an arc between the clamping zones and the counter-element is clamped
  • the clamping elements are connected to a non-uniform rotary drive
  • a deflection device is arranged, from which the sheet trailing edges are deflected from the inlet level downwards.
  • the braking time would be limited to the time in which a subsequent arc closes the gap to the previous arc.
  • the device for deflecting the sheet trailing edges down is preferably a cyclically switched suction box with suction openings on the upper side, which sucks the sheet trailing edges arranged below the inlet plane of the sheets and so moves down.
  • the suction box retains the free end of the sheet between the clamping zones and the sheet trailing edges during braking of a sheet and thus tightened. The free bow end would otherwise tend to push forward against the braking clamping zones
  • a three-phase synchronous servo motor is preferably used, which has a very low dynamic mass moment of inertia.
  • the engine is relatively long and designed with a relatively small diameter.
  • its length to diameter ratio is more than 4.
  • the clamping zones are formed by ring-segment-shaped elements which are fastened on a hollow shaft driven by the non-uniform rotary drive.
  • the hollow shaft In order for the hollow shaft to have a low mass moment of inertia and nevertheless a high torsional rigidity, it is preferably designed as a CFRP tube with at least 100 mm outer diameter.
  • On the hollow shaft are preferably applied as clamping zones ring segments with Vietnamesebogenförmigem outer diameter having an outer circumferential length of 40 mm - 100 mm.
  • the segments are preferably made of a volume-compressible, foamed plastic material, so that the sheets can be trapped slip-free while avoiding marks.
  • Figure 7 shows a side view of the operating principle of the braking device.
  • the device shown in Figure 1 in general view is used to produce paper or cardboard sheets from a continuously fed web 1.
  • web / sheet travel direction in the figures from left to right
  • the following components are arranged one behind the other:
  • a longitudinal cutting device 2 in which the edges of the web is trimmed and, if appropriate, the web 1 is divided into up to six individual webs, a cross-cutting device 3, a braking and overlapping device 4, from which the sheets produced during cross cutting are taken and decelerated, wherein a Shingled stream forms, as well as a stacking device 5, in which the sheets are stored on stack 6, which lie on pallets 7.
  • the cross-cutting device 3 contains in a known manner two superimposed knife drums 8, which are each equipped with at least one transverse knife, of which the web 1 is divided into sheets 9 during the passage. If a plurality of webs 1 processed superimposed, so arise when cross-cutting sheet packages, which are then transported on.
  • sheet used hereinafter also includes sheet packages which are produced and further processed in the multi-layer operation, behind which elements for taking over the web start produced at a cross section and for tightening the web during cross cutting, elements for accelerated onward transport of a cross-section of arc generated to create a gap between two sheets, and arranged the braking and overlapping device 4, which produces a shingled stream of overlapping sheets, which is supplied at a slower transport speed of the stacking device 5.
  • the brake and overlap device 4 begins with a vacuum can be acted upon suction box 13, the upper, provided with suction openings wall parallel to some distance below the conveying plane of the sheets 9.
  • the suction openings of the suction box 13 can be opened in cycles, so that sucked from the negative pressure respectively the trailing edges of the sheets 9 and deflected downwards.
  • the trailing edges of the sheets are released from the fast-running the upper belt conveyor 10, which extends over the length of the brake and overlap device 4.
  • the suction box 13 thus serves as a deflection device, from which the sheet-edge edges are deflected downwards from the entry level.
  • the suction box 13 begins a lower belt conveyor 14, which runs at the slower filing speed with which the sheets are placed on the stack 6. When braking a sheet 9, the leading edge of a subsequent, even faster moving sheet slides over its trailing edge. This results in a scale flow of overlapping sheets, which is further promoted on the lower belt conveyor 14 with the slower storage speed.
  • a braking device containing rotatably driven clamping elements 16 with clamping zones 17, of which the sheets 9 are clamped and braked.
  • the clamping elements 16 with the clamping zones 17 are arranged on one side of the transport plane of the sheets (in the present example above the transport plane) across the width of the device so that the clamping zones 17 at times extend to the inlet level of the sheets 9 during circulation.
  • a rotating counter-element 18 is arranged so that a sheet 9 or a sheet package between the clamping zones 17 and the counter-element 18 can be clamped.
  • the clamping elements 16 are located at a distance of at least 100 mm from the inlet-side beginning of the deflection (here suction box 13) so that they can attack with a minimum distance of 100 mm from the sheet trailing edge on a sheet 9.
  • a subsequent bend has time to slide with its leading edge over the previous when braking deceleration before it is braked itself.
  • the clamping elements 16 and the associated counter element 18 are limited in and against sheet running direction (arrow 19 in Figure 2) adjustable, so that the distance to the deflector (suction box 13) is format dependent adjustable. In this way, the attack position of the clamping zones 17 can be adapted to the sheets 9 of the arc length.
  • the clamping elements 16 with the clamping zones 17 as well as the rotating counter-element 18 are each connected to a non-uniform rotary drive, which makes it possible to change the circumferential speed in one revolution.
  • the clamping zones 17 are formed by ring-segment-shaped elements, which are fastened on the outside on a hollow shaft driven by the non-uniform rotary drive.
  • the hollow shaft is a ges mass moment of inertia and yet has a high torsional stiffness, it is preferably designed as CFRP tube with at least 100 mm outer diameter.
  • the ring segments fastened on the hollow shaft as clamping zones 17 preferably have an arcuate outer diameter with an outer circumferential length of 40 mm - 100 mm.
  • the circumferential angle of the clamping zones 17 on the hollow shaft is preferably between 50 ° and 90 °. It corresponds to the brake angle shown in FIG.
  • the ring segments are preferably made of a volume-compressible, foamed plastic material, so that the sheets can be trapped slip-free while avoiding marks.
  • the radially measured thickness of a clamping zone 17 is preferably between 10 mm and 30 mm.
  • the counter-element 18 is also configured in the embodiment as a rotatable hollow shaft, the lateral surface is also occupied to avoid markings with a volume-compressible coating.
  • FIG. 7 shows the operating principle of the brake device 4:
  • a sheet 9 or a sheet package is compressed and clamped together with the counter-element 18.
  • the clamping zones 17 When the clamping zones 17 are applied to a sheet, they have the higher entry speed V1 of the sheets. Subsequently, by means of the non-uniform rotary drive, the rotational speed of the clamping zones 7 is reduced until the lower outlet speed V2 is present. The deceleration takes place without slip and is guided along a ramp, so that no shear stresses, but only compressive stresses arise in a sheet package. These compressive stresses produce no marks.
  • the sequence of the braking operation and the overlapping of sheets 9 is shown in FIGS. 2 to 6:
  • a sheet transported by the belts 10, 11 at the rapid speed of entry runs with its leading edge into the braking and overlapping device 4 (FIG. 2, FIG. 3).
  • the trailing edge of the sheet 9 is located above the suction box 13, this is turned on and sucks in the sheet trailing edge. It releases itself from the fast upper bands 10 and lies down on the slower lower bands 14.
  • the clamping zones 17 apply to the sheets 9 and press them down against the counter element 18, so that a sheet or sheet package is clamped.
  • both the clamping zones 17 and the counter element 18 have a peripheral speed which corresponds to the high inlet speed V1.
  • the rotary drive reduces the circulation speed to the lower discharge speed V2.
  • a subsequent sheet 9 has time to slide with its leading edge over the trailing edge of the previous sheet 9, so that sufficient time for deceleration the previous sheet 9 and at the same time creates an overlap.
  • the deflection of the sheet (suction box 13) with sufficient distance in front of the clamping elements 17, 18 is arranged.
  • the subsequent sheet 9 can now slide between the clamping elements 16, 17, while the clamping zones 17 are accelerated again to the higher inlet speed V1, before they apply to the just entered sheet to decelerate this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Making Paper Articles (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

L'invention concerne un dispositif de freinage de feuilles (9), notamment de feuilles de papier ou de carton destinées à être déposées sur une pile (6), comportant des éléments de blocage (16) pouvant être entraînés en rotation, disposés au moins sur un côté du plan de transport des feuilles (9), sur la largeur du dispositif, présentant des zones de blocage (17) s'étendant temporairement jusque dans le plan d'entrée des feuilles (9) lors de la rotation. Le dispositif selon l'invention comporte également un contre-élément (18) disposé de façon rotative sur le côté opposé du plan de transport des feuilles (9), de telle manière qu'une feuille peut être bloquée entre les zones de blocage (17) et le contre-élément (18). Les éléments de blocage (16) sont connectés à un entraînement rotatif non uniforme et présentent sur une partie de leur périphérie, des zones de blocage (17) en forme de segments annulaires. Un dispositif de déviation (13) est disposé dans le sens d'avancement des feuilles, à distance en amont des éléments de blocage (16), et sert à dévier vers le bas les bords arrière des feuilles provenant du plan d'entrée.
EP06829279.6A 2006-01-13 2006-12-05 Dispositif de freinage de feuilles, notamment de feuilles de papier ou de carton destinées à être déposées sur une pile Active EP1976789B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610002029 DE102006002029A1 (de) 2006-01-13 2006-01-13 Vorrichtung zum Abbremsen von auf einem Stapel abzulegenden Bögen, insbesondere Papier-oder Kartonbögen
PCT/EP2006/011632 WO2007087858A1 (fr) 2006-01-13 2006-12-05 Dispositif de freinage de feuilles, notamment de feuilles de papier ou de carton destinées à être déposées sur une pile

Publications (2)

Publication Number Publication Date
EP1976789A1 true EP1976789A1 (fr) 2008-10-08
EP1976789B1 EP1976789B1 (fr) 2016-05-18

Family

ID=37907582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829279.6A Active EP1976789B1 (fr) 2006-01-13 2006-12-05 Dispositif de freinage de feuilles, notamment de feuilles de papier ou de carton destinées à être déposées sur une pile

Country Status (10)

Country Link
US (1) US8640584B2 (fr)
EP (1) EP1976789B1 (fr)
JP (1) JP5015956B2 (fr)
KR (1) KR101250039B1 (fr)
CN (1) CN101384497B (fr)
BR (1) BRPI0620986A2 (fr)
CA (1) CA2657888A1 (fr)
DE (1) DE102006002029A1 (fr)
RU (1) RU2411177C2 (fr)
WO (1) WO2007087858A1 (fr)

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Publication number Priority date Publication date Assignee Title
US11612944B2 (en) 2017-06-14 2023-03-28 Bw Papersystems Stuttgart Gmbh Device and method for forming a shingle stream of under- or overlapping sheets

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CN105538397B (zh) * 2016-01-27 2017-04-05 浙江豪盛印刷机械有限公司 一种分切机的减速机构
DE202018102617U1 (de) 2017-06-14 2018-09-18 Bw Papersystems Stuttgart Gmbh Vorrichtung zur Bildung eines Schuppenstroms von unter- oder überlappenden Bögen
CN109677984A (zh) * 2019-01-16 2019-04-26 王桂芳 一种折页机中的旋转减速装置
CN110039794B (zh) * 2019-05-10 2023-12-05 广州明森科技股份有限公司 一种双工位的片料叠合装置及方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11612944B2 (en) 2017-06-14 2023-03-28 Bw Papersystems Stuttgart Gmbh Device and method for forming a shingle stream of under- or overlapping sheets

Also Published As

Publication number Publication date
BRPI0620986A2 (pt) 2011-11-29
CN101384497B (zh) 2011-03-16
JP2009523112A (ja) 2009-06-18
US8640584B2 (en) 2014-02-04
KR101250039B1 (ko) 2013-04-02
DE102006002029A1 (de) 2007-07-19
US20090020945A1 (en) 2009-01-22
EP1976789B1 (fr) 2016-05-18
JP5015956B2 (ja) 2012-09-05
KR20080108225A (ko) 2008-12-12
RU2411177C2 (ru) 2011-02-10
WO2007087858A1 (fr) 2007-08-09
RU2008133212A (ru) 2010-02-20
CA2657888A1 (fr) 2007-08-09
CN101384497A (zh) 2009-03-11

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