EP2953874A1 - Dispositif de transport pour papier et appareil de traitement de papier - Google Patents

Dispositif de transport pour papier et appareil de traitement de papier

Info

Publication number
EP2953874A1
EP2953874A1 EP14710493.9A EP14710493A EP2953874A1 EP 2953874 A1 EP2953874 A1 EP 2953874A1 EP 14710493 A EP14710493 A EP 14710493A EP 2953874 A1 EP2953874 A1 EP 2953874A1
Authority
EP
European Patent Office
Prior art keywords
transport device
conveyor belt
cleaning roller
section
cleaning
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
EP14710493.9A
Other languages
German (de)
English (en)
Other versions
EP2953874C0 (fr
EP2953874B1 (fr
Inventor
Jörg SCHEFFLER
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.)
SCHEFFLER, JOERG
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2953874A1 publication Critical patent/EP2953874A1/fr
Application granted granted Critical
Publication of EP2953874C0 publication Critical patent/EP2953874C0/fr
Publication of EP2953874B1 publication Critical patent/EP2953874B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F2/00—Transferring continuous webs from wet ends to press sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/224—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
    • B65H2301/531—Cleaning parts of handling machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/115—Details of cross-section or profile other
    • B65H2404/1151—Details of cross-section or profile other brush
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/27—Belts material used
    • B65H2404/271—Belts material used felt or wire mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/28—Other properties of belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/56—Flexible surface
    • B65H2404/561—Bristles, brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/20—Means using fluid made only for liquid medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/32—Suction belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/26—Damages to handling machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/521—Noise

Definitions

  • the invention relates to a transport device for paper according to the preamble of claim 1 and to a paper-processing device according to claim 16.
  • suction belts are usually made of rubber or a similar material and have a plurality of holes.
  • the transport device has at least two rollers, over which this suction belt runs and below the upper portion of the conveyor belt serving as a suction conveyor belt (ie below the transport section of the conveyor belt) is provided with a vacuum acted upon so-called suction box, the top has a plurality of openings, so that In the suction box acting vacuum on the one hand sucks the transport section on the suction box, and on the other paper, which is located on the surface of the transport section, sucks on this surface.
  • the present invention therefore has the object, a generic transport device, which can be used even at high permanent or punctual temperatures, educate in such a way that it is much easier to manufacture and preferably also in the assembly.
  • This object is achieved by a transport device having the features of claim 1.
  • the conveyor belt is also made of a metal, but not of a perforated metal sheet, but of a metal fabric.
  • metal fabrics are produced for a variety of purposes in large quantities and at very low cost. It has been found that such a metal fabric over a wide range of mesh sizes and wire thicknesses the same purpose as the above-mentioned laser punched metal strip. It has also been found that such metal fabrics can be easily welded by plasma or laser welding into endless belts, and that their mechanical properties (in particular their tensile elongation) make them ideal for use as endless conveyor belts. Another advantage over the previous laser-punched metal bands is, that they are often even easier to clean. This is in the above-described, currently preferred application in laser cutting devices (claim 15) important because left by the laser cutting Abbrandreste (ash and the like) from the paper on the conveyor belt and should be removed as continuously as possible in continuous operation.
  • metal mesh scatters rather than reflects the laser light, greatly reducing the negative effects of the reflections.
  • the unwanted reflections can be further reduced by sandblasting and / or nano-coating the metal mesh.
  • FIG. 1 shows a highly schematic cross section through a laser cutting system in which a transport device according to the invention is used
  • FIG. 2 shows the detail D from FIG. 1 in a likewise very schematized and not to scale sectional view
  • Figure 3 is a plan view from direction D1 to that shown in Figure 2
  • FIG. 5 shows a plan view from direction D2 in FIG. 4
  • FIG. 6 shows a plan view from direction D3 in FIG. 5
  • FIGS. 4 to 6 shown in a perspective view
  • FIG. 8 shows that shown in FIG. 7 with the conveyor belt mounted
  • FIG. 9 is a cut-away view of that shown in FIG. 8, FIG. 10 shows a variation from that shown in FIG. 1,
  • Figure 11 shows a preferred embodiment of a cleaning station and Figure 12 shows a variation to that shown in Figure 11.
  • FIG. 1 shows, in a schematic cross-sectional representation, an apparatus for producing laser cuts in flat paper blanks, such as greeting cards or the like.
  • This device consists of four elements, namely a feed unit 40, a transport device 10, a laser 30 arranged above the transport device and a removal unit 50.
  • the direction of transport of the paper is the direction T and the device can operate continuously, ie. H. the generation of the cutting contours by the laser is carried out at a constant transport movement by the transport device 10th
  • the feed unit 40 may be conventionally constructed, consisting of a smooth-surfaced table 42 and a series of transport rollers 44 which slide the paper blanks over the table to the transport device 10.
  • the transport rollers 44 may be slightly rotated relative to the transport direction T from a 90-degree angle ( Figure 1 a) and press the paper blanks to a stop, so that a more accurate positioning of the paper blanks is achieved.
  • the removal unit 50 can also be conventional be constructed and may for example consist of a connector 52 and a conveyor belt 54. However, it would be just as possible, for example, immediately after the transport device 10 to provide a forklift or the like.
  • the essential elements of the transport device 10 are two rollers 12a, 12b, wherein at least one of the two rollers, here the rear roller 12b, driven, the conveyor belt 25 and a plurality of axial fans 16, which below the upper portion (ie the TransportabSchnitts ) 25a of the conveyor belt 25 are arranged.
  • This carrier 14 has a plurality of openings; at the positions of the apertures, the axial fans 16 are arranged, as shown in Figure 1 only very schematically.
  • the carrier 14 may also be substantially thinner in practice (this will be seen below with reference to FIGS. 4 to 9).
  • the axial fans 16 are preferably located relatively close to the underside of the upper portion 25a of the conveyor belt.
  • the conveyor belt 25 as a metal fabric, so usually made of a warp wires 27 and weft wires 26 fabric made. This is shown schematically in FIGS. 2 and 3.
  • the wire thickness of the interwoven wires is preferably between 0.25 and 0.4 mm and the mesh size is preferably between 0.4 and 0.6 mm.
  • the metal fabric is preferably made of stainless steel, for example V2A.
  • a so-called "normal wire cloth” that is, a plain weave wire cloth, a plain weave wire cloth or a body weave wire cloth is used .
  • the warp wires 27 preferably extend in the transporting direction a piece of metal mesh of suitable length and width is cut and the two end edges (usually the short edges) are preferably welded together by plasma or laser welding, so that an endless conveyor belt is formed.
  • the transport device 10 may also have, for example, the following illustrated elements: input rollers 23, an output roller 20 and a lower cleaning brush 22 or a cleaning station.
  • input rollers 23, an output roller 20 and a lower cleaning brush 22 or a cleaning station A preferred embodiment of such a cleaning station will be explained later with reference to FIGS. 11 and 12.
  • the output roller 20 can also perform a cleaning function.
  • the provision of at least one cleaning roller or cleaning brush is to be preferred in the preferred embodiment of the transport device described in the exemplary embodiment, since burnt residues from the transport device 10 generally have to be removed.
  • an output roller 20 is provided, as shown, at the end of the upper section 25a of the conveyor belt 25 (ie the transport section), then it must be driven in opposite directions to the rollers 12a, b, one on the lower, ie on the return, section of the conveyor belt acting cleaning brush 22 or cleaning roller can also be concurrently driven to the rollers 12a, b, ie in opposite directions to the returning lower portion 25b, which can lead to an improvement in the cleaning effect. Since the output roller 20 also acts on the processed paper blanks, this must be made of a relatively soft material, while the lower cleaning brush 22 may also consist of a relatively hard material. Of course, the lower cleaning brush 22 could also act on the conveyor belt 25 in the area of one of the two rollers (but already on the lower half in each case).
  • the cutting laser 30 is arranged.
  • the operation of the device takes place, as already mentioned, continuously and at a preferably constant transport speed.
  • the axial fans 16 which suck air through the upper portion 25a of the conveyor belt 25, the paper blanks 40 fed in the exact position by the feed unit 40 are held in position.
  • the air expelled from the axial fans 16 exits through the lower portion 25b of the conveyor belt and thus further contributes to the cleaning of the return portion of the conveyor belt 25.
  • the provision of axial fans has compared to the provision of a suction box still the other great advantages of a significantly reduced energy demand and a significantly reduced noise (in conventional suction boxes radial compressor are used as a vacuum generator).
  • the laser 30 cuts the paper blanks lying on the upper portion of the conveyor belt, which leave the transport device 10 on the rear roller 12 b and are discharged via the discharge unit 50.
  • FIGS. 4 to 9 show the transport device 10 just described again in greater detail, wherein in the figures 4 to 7, the conveyor belt 25 is not shown. All elements are provided with reference numerals in accordance with FIG. 1, so that repetitions, if possible, are dispensed with.
  • FIGS. 4 and 9 show very well that the horizontally extending carrier 14 can be made quite thin and that the drive motors of the axial fans 16 can lie outside the plane defined by the carrier 14.
  • the diameters of the openings in the carrier 16 substantially correspond to the diameter of the blades of the axial fans used. It can be seen in particular in FIG.
  • the carrier 14 extends between two side cheeks 18a, 18b, so that the two sections of the conveyor belt 25, the rollers 12a, 12b and the side cheeks 18a, 18b enclose an internal space in which the aforementioned carrier 14 is arranged.
  • each side wall has a slot 19 extending in the transport direction, through which the axis of a roller, here the front roller 12a, extends, so that the distance between the two rollers 12a, 12b is variable is and thus the conveyor belt 25 can be stretched.
  • the conveyor belt 25 in the finished, so welded to an endless loop state, are mounted, wherein it is laterally pushed onto the rollers 12a, 12b, this ancillary components such as the input rollers 23 may have to be dismantled, if necessary.
  • This cleaning station 70 has a cleaning roller 71 which can be driven about an axis 73 and an open-topped container 76 for receiving cleaning liquid 77 (in the simplest case water).
  • a stripping roller 78 is further provided, which is driven in opposite directions to the cleaning roller.
  • At least the outer jacket layer of the cleaning roller 71 is formed as a sponge (sponge jacket 74 - FIG. 1) or in the form of a brush (brush jacket 75 - FIG. 12).
  • the cleaning roller 71 is preferably driven in the same direction of rotation as the rollers 12a, 12b.
  • the cleaning roller 71 is positioned so that it presses from below against the returning portion 25 b of the conveyor belt 25 and immersed with a lower part in the cleaning liquid 77.
  • the cleaning roller By the rotation of the cleaning roller new cleaning fluid 77 is constantly added and promoted to the returning portion 25b of the conveyor belt.
  • the stripper roller which is arranged in the direction of rotation of the cleaning roller between the cleaning liquid and the conveyor belt, the degree of humidification of the returning section can be adjusted.
  • the radial distance between cleaning roller and stripping roller 78 is preferably adjustable.
  • Moist cleaning (especially with the cleaning station just described) has several advantages. First, a good cleaning of the conveyor belt of burned, ash and the like can be achieved. Furthermore, the moistening of the conveyor belt as such has advantages. On the one hand, evaporation refrigeration develops, in addition favored by the arrangement of the axial fans, ie, the conveyor belt, whose upper section 25a is exposed to laser energy, is cooled. Furthermore, the moistening can be adjusted so that the conveyor belt still adheres to its upper portion 25a a certain amount of liquid. This adhering liquid improves the adhesion of burnt, ash and the like, so that they do not pollute the back of the processed paper. The fabric structure of the metal conveyor strongly promotes the intentional adhesion of liquid. Another possible use of the conveyor belt according to the invention is in drying lines of paper, especially paper, which has been printed with an inkjet printer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

L'invention concerne un dispositif de transport de papier, lequel présente une bande transporteuse (25) guidée par au moins deux cylindres (12a, 12b), constituée de métal et perméable à l'air, dont la partie supérieure forme la partie de transport (25a) et dont la partie inférieure forme la partie de retour (25b), et lequel comprend un générateur de vide disposé au-dessous de la partie supérieure. Selon l'invention, pour faciliter la fabrication et le montage de la bande transporteuse (25), ladite bande est constituée d'un tissu métallique.
EP14710493.9A 2013-02-08 2014-02-07 Appareil de traitement de papier Active EP2953874B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013002122.7A DE102013002122A1 (de) 2013-02-08 2013-02-08 Transportvorrichtung für Papier und Papierbearbeitungseinrichtung
PCT/EP2014/000334 WO2014121939A1 (fr) 2013-02-08 2014-02-07 Dispositif de transport pour papier et appareil de traitement de papier

Publications (3)

Publication Number Publication Date
EP2953874A1 true EP2953874A1 (fr) 2015-12-16
EP2953874C0 EP2953874C0 (fr) 2024-04-10
EP2953874B1 EP2953874B1 (fr) 2024-04-10

Family

ID=50288020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14710493.9A Active EP2953874B1 (fr) 2013-02-08 2014-02-07 Appareil de traitement de papier

Country Status (4)

Country Link
US (1) US9725851B2 (fr)
EP (1) EP2953874B1 (fr)
DE (1) DE102013002122A1 (fr)
WO (1) WO2014121939A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013002122A1 (de) * 2013-02-08 2014-08-14 Jörg Scheffler Transportvorrichtung für Papier und Papierbearbeitungseinrichtung
US9688474B2 (en) * 2014-01-24 2017-06-27 Lasx Industries, Inc. Metal belt for laser materials processing
DE102016103811A1 (de) 2016-03-03 2017-09-07 Jörg Scheffler Druckbogen, Verfahren zur Herstellung eines solchen Druckbogens, Einrichtung zur Durchführung dieses Verfahrens, Verfahren zur Verarbeitung eines solchen Druckbogens, Einrichtung zur Durchführung dieses Verfahrens und Verfahren zur Herstellung eines Druckereierzeugnisses
CN107351368B (zh) * 2017-09-08 2023-08-01 江苏求实塑业有限公司 一种热塑膜牵引机
CN107351356B (zh) * 2017-09-08 2023-12-19 佛山市南海广一塑薄膜有限公司 一种热塑膜牵引装置
DE102018113943A1 (de) 2018-06-12 2019-12-12 Jörg Scheffler Vorrichtung zum Auftrennen von Bögen
DE102018119971B4 (de) 2018-08-16 2022-03-24 Jörg Scheffler Vorrichtung zur Bearbeitung flächiger Elemente
ES2750073B2 (es) * 2018-09-24 2021-05-11 Asitec Ceram S L Base de soporte de bandas de transporte en maquinas de impresion digital en continuo
CN113401696B (zh) * 2021-07-15 2022-11-22 深圳市美达思科技有限公司 一种热塑性塑料薄膜生产设备
TWI804979B (zh) * 2021-09-10 2023-06-11 虹光精密工業股份有限公司 清潔件、紙張傳送裝置及使用其之事務機
CN113955383B (zh) * 2021-09-15 2023-08-29 山东华明纺织有限公司 一种绒毛制品生产用的防飘散接料装置
CN114654781B (zh) * 2022-01-04 2024-08-23 昆山恺博传动系统有限公司 一种导电同步输送带及其制备方法

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See also references of WO2014121939A1 *

Also Published As

Publication number Publication date
US20160032526A1 (en) 2016-02-04
EP2953874C0 (fr) 2024-04-10
US9725851B2 (en) 2017-08-08
EP2953874B1 (fr) 2024-04-10
DE102013002122A1 (de) 2014-08-14
WO2014121939A1 (fr) 2014-08-14

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