EP2300229B1 - Machine d'impression comportant des éléments insonorisants - Google Patents

Machine d'impression comportant des éléments insonorisants Download PDF

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Publication number
EP2300229B1
EP2300229B1 EP09757205A EP09757205A EP2300229B1 EP 2300229 B1 EP2300229 B1 EP 2300229B1 EP 09757205 A EP09757205 A EP 09757205A EP 09757205 A EP09757205 A EP 09757205A EP 2300229 B1 EP2300229 B1 EP 2300229B1
Authority
EP
European Patent Office
Prior art keywords
sound
printing
absorbing elements
sound absorbing
impression cylinder
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
EP09757205A
Other languages
German (de)
English (en)
Other versions
EP2300229A1 (fr
Inventor
Uwe Rogge
Frank Gunschera
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP2300229A1 publication Critical patent/EP2300229A1/fr
Application granted granted Critical
Publication of EP2300229B1 publication Critical patent/EP2300229B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/0024—Frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/42—Guards or covers, e.g. for preventing ingress or egress of foreign matter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/40—Auxiliary devices or processes associated with the drives
    • B41P2213/44—Noise reduction

Definitions

  • the invention relates to a printing press according to the preamble of claim 1.
  • Printing presses with a central counter-pressure cylinder and arranged around it inking units are well known and are mainly used for printing web-like substrates by the flexographic printing process. These web-shaped substrates are usually used for the production of packaging.
  • the web-like material is unwound from a unwinding and is fed to the impression cylinder on a feed path.
  • the area between the unwinding and the impression cylinder is accessible. This is especially necessary in order to be able to supply the unwinding station with a new web winding when the previous web winding has been used up. But also for track observation, this area must be accessible by the operating personnel.
  • the printing areas are raised in relation to the non-printing areas.
  • the transition between non-printing areas and the printing areas are referred to as start-up edges.
  • the printing areas are made of flexible material, which is usually compressed a little when the leading edge abuts the substrate. The material relaxes when the printing area is no longer in contact with the substrate. This dynamic causes vibrations of the cliché which the printing Embody areas. These vibrations continue as sound in the environment, so that there may be a considerable amount of noise in the area of the printing press. Especially in the walkable area described in the previous paragraph between the unwinding and the impression cylinder, the sound level can exceed the reasonable load for the operator.
  • the object of the present invention is therefore to improve the printing machine described above such that the sound level is reduced.
  • this object is solved by the features of the characterizing part of claim 1. Accordingly, sound absorbing elements are provided, which are arranged above and / or below the Zubuchweges.
  • the sound-absorbing elements have the properties to absorb the sound waves and to convert it within the body into other forms of energy or at least in vibrations of other frequencies, so that the audible to humans sound waves are apparently destroyed.
  • the invention is based on the observation that the high sound level, in particular in the accessible area, results from the fact that the sound generated in the area of the inking units is dried at the underside of the so-called dry box, in which the already printed web is dried and which up the feed path limited, reflected. The reflected sound then enters the walk-in area, which is why the operating personnel who are in this area, is heavily loaded.
  • the sound-absorbing elements extend in the direction of the Zubuchweges. Because the sound source is not punctiform Source is, but the entire printing unit is to be regarded with all its inking units as a spatially extended sound source, the sound is also reflected in different places. With sufficiently large selected elements, therefore, a particularly effective sound reduction can be achieved.
  • a particularly preferred embodiment of the invention includes support plates to which the sound-absorbing elements are attached.
  • Such support plates can be mounted at a distance below the dry box, so that sound waves that are reflected directly from the substrate, can be absorbed.
  • the sound-absorbing elements form a tunnel through which the feed path passes.
  • the feed path is provided with sound absorbing material on all sides, so that more sound can be absorbed.
  • foam which often consists of plastic, which was foamed with a propellant, so that subsequently small bubbles from the propellant gas are trapped in the material.
  • This entrapped gas leads overall to the softness and thus to the sound-absorbing properties of the material.
  • a material of a polyester-polyurethane-based foam is used.
  • Another preferred material is an elastic resin bonded rock wool material.
  • FIGURE shows a side view of a printing press according to the invention.
  • This printing machine 1 comprises a printing unit 2, which has a central impression cylinder 3.
  • the impression cylinder 3 is rotatably mounted in a machine frame, not shown.
  • the inking units 4 are only the impression cylinder 5 and the inking rollers, For example, anilox rollers 6, shown.
  • anilox rollers 6 shown.
  • the printing material web 7 is provided in the printing press on a winding 8, which is rotatably mounted in an unwinding station 9.
  • the unwound substrate web 7 is guided over several guide rollers 10 from the unwinding station 9 to the pressure roller 11, with which the printing substrate 7 can be applied to the impression cylinder.
  • the web path between the unwinding station 9 and the pressure roller is regarded as feed path 12 of the printing material web 7.
  • the Zugarweg 12 is limited in a large range by support 13 and 14 in height. These carriers can be the horizontal parts of double T-bars. Between the elements connecting the carrier, the guide rollers 10 are arranged. So there are two supports 13 provided on both sides of the web edges (not shown). Likewise, two carriers 14 are provided.
  • the printing material 7 After the printing material 7 has passed through the printing unit 2, it is fed to the drying box 15. There it is passed over numerous guide rollers 18 to dryers, not shown, and / or other devices which serve to cure the ink. After leaving the dry box, the web 7 of the winding station 16 is supplied, where it is processed into a roll 17 on. The web 7 is always performed between the printing unit 2 and the winding station 16 so that it rests with the unprinted side on the guide rollers 18.
  • the underside of the dry box is provided with a mat 21 of sound absorbing or sound absorbing material.
  • This mat 21 is preferably as wide as the drying box.
  • the length in the direction of Zustockedweges 12, the Needs for sound reduction are selected accordingly and is for example one meter.
  • the support member 24 also carries sound absorbing material. However, this support element 24 is not fastened to the supports 13, but to the sliding element 25 or the sliding elements 25.
  • the or each sliding element advantageously also comprises sound-damping material. For example, glass serves as a sound-damping material, which also offers the advantage that the printing unit can be observed. Since the support element 24 is arranged on the sliding element 25, it can be moved with the sliding element 25 in the axial direction of the printing cylinder 5, so that the printing unit 2, for example for maintenance purposes, is accessible.
  • All gaps, such as between the support element 24 and the connecting element 23 or between the sliding element 25 and the housing 26 of the printing unit 2 are advantageously acoustically sealed by brushing soft bristles, so that the sound emission in the accessible area 19 can be further reduced.
  • the elements connecting the carriers 13 and 14, that is to say the perpendiculars of the double-T carriers, can likewise be covered with sound-damping material so that the feed path leads through a veritable tunnel of sound-damping material.
  • the entrance area of the area covered with sound-damping material can still be narrowed by a constriction element.
  • This element may be a cross member to which the connecting element 23 may be attached.
  • the constricting element already acts to dampen the sound, but may additionally be covered with sound-damping materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (7)

  1. Machine d'impression avec au moins un cylindre de contre-pression central, auquel sont associés plusieurs mécanismes d'encrage, où peut être amenée au cylindre de contre-pression dans la zone entre le premier mécanisme d'encrage et le dernier mécanisme d'encrage une bande d'impression le long d'un chemin d'amenée, un emplacement de déroulement depuis lequel la bande d'impression peut être déroulée, où est prévue entre le cylindre de contre-pression et l'emplacement de déroulement une zone accessible devant laquelle la bande d'impression peut être amenée à passer, caractérisée par des éléments absorbant le son qui sont disposés au-dessus et/ou en dessous du chemin d'amenée.
  2. Machine d'impression selon la revendication 1, caractérisée en ce que les éléments absorbant le son s'étendent dans la direction du chemin d'amenée.
  3. Machine d'impression selon l'une des revendications précédentes, caractérisée en ce que les éléments absorbant le son sont disposés sur des plaques de support qui sont fixées au châssis de machine.
  4. Machine d'impression selon l'une des revendications précédentes, caractérisée en ce que les éléments absorbant le son forment un tunnel à travers lequel s'étend le chemin d'amenée.
  5. Machine d'impression selon l'une des revendications précédentes, caractérisée en ce que les éléments absorbant le son comprennent dans leur zone d'entrée un composant retrécissant la section transversale de l'amenée.
  6. Machine d'impression selon l'une des revendications précédentes, caractérisée en ce que d'autres éléments absorbant le son sont prévus qui délimitent l'espace entre le cylindre de contre-pression et la zone accessible l'un de l'autre.
  7. Machine d'impression selon l'une des revendications précédentes, caractérisée en ce que les éléments absorbant le son comprennent de la mousse.
EP09757205A 2008-05-29 2009-05-27 Machine d'impression comportant des éléments insonorisants Not-in-force EP2300229B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008025994A DE102008025994B4 (de) 2008-05-29 2008-05-29 Druckmaschine
PCT/EP2009/003752 WO2009146822A1 (fr) 2008-05-29 2009-05-27 Machine d’impression comportant des éléments insonorisants

Publications (2)

Publication Number Publication Date
EP2300229A1 EP2300229A1 (fr) 2011-03-30
EP2300229B1 true EP2300229B1 (fr) 2011-10-05

Family

ID=41100713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09757205A Not-in-force EP2300229B1 (fr) 2008-05-29 2009-05-27 Machine d'impression comportant des éléments insonorisants

Country Status (6)

Country Link
US (1) US8783985B2 (fr)
EP (1) EP2300229B1 (fr)
AT (1) ATE527110T1 (fr)
DE (1) DE102008025994B4 (fr)
ES (1) ES2371330T3 (fr)
WO (1) WO2009146822A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2013462A3 (cs) * 2013-06-17 2015-01-21 Soma Spol. S R.O. Uspořádání flexotiskového stroje s centrálním protitlakým válcem
DE102014214335B4 (de) 2014-07-23 2020-07-09 Windmöller & Hölscher Kg Wickelvorrichtung zum Aufwickeln eines bahnförmigen Materials

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502016A (en) * 1943-11-30 1950-03-28 Rca Corp Diffraction type sound absorber
US3787986A (en) * 1971-12-27 1974-01-29 Boewe Boehler & Weber Kg Masch Blower for vehicle-drying installation
DE3423272A1 (de) 1984-06-23 1986-01-02 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zur geraeuschminderung an druckmaschinen
DE3606670A1 (de) * 1986-02-28 1987-09-17 Jeffrey Lee Gates Papiertransportvorrichtung fuer druckeinrichtungen
EP0270030B1 (fr) * 1986-11-29 1994-06-29 Kabushiki Kaisha Toshiba Imprimante
US4976391A (en) * 1988-08-31 1990-12-11 Ring King Visibles, Inc. Adjustable paper guide for acoustic printer enclosure
KR930004780B1 (ko) * 1989-01-12 1993-06-08 후지쓰 가부시끼가이샤 인쇄장치
DE3930364A1 (de) * 1989-09-12 1991-03-21 Heidelberger Druckmasch Ag Schutzvorrichtung fuer offset-rotationsdruckmaschinen
US5970866A (en) * 1994-09-12 1999-10-26 Tohoku Ricoh Co., Ltd. Printing machine with sound reducing apparatus
US5865119A (en) * 1995-03-18 1999-02-02 Koenig & Bauer-Albert Aktiengesellschaft Soundproofing
US7415428B2 (en) * 1997-03-13 2008-08-19 Safefresh Technologies, Llc Processing meat products responsive to customer orders
US6176184B1 (en) * 1999-04-16 2001-01-23 Paper Converting Machine Company Dryer for flexographic and gravure printing
DE19954458A1 (de) * 1999-11-12 2001-05-23 Ltg Prozessluft Und Gebaeudete Einhausung für eine drucktechnische Einrichtung
DE10101129B4 (de) 2000-02-01 2008-03-13 Heidelberger Druckmaschinen Ag Vorrichtung zum Reduzieren von Schallemissionen
DE10034708A1 (de) 2000-07-17 2002-01-31 Windmoeller & Hoelscher Trockenkammer zum Trocknen einer bedruckten Bahn
FR2833844B1 (fr) * 2001-12-21 2004-11-26 Airinspace Ltd Dispositif mobile d'isolement aeraulique contre la contamination aeroportee, a geometrie variable de diffusseur d'air
DE102005025776A1 (de) * 2005-06-04 2006-12-07 Man Roland Druckmaschinen Ag Bahnführungselement einer Zeitungsdruckmaschine
US8336672B2 (en) * 2006-01-18 2012-12-25 Bard Manufacturing Company Air treatment and sound reduction system

Also Published As

Publication number Publication date
WO2009146822A1 (fr) 2009-12-10
EP2300229A1 (fr) 2011-03-30
ATE527110T1 (de) 2011-10-15
US8783985B2 (en) 2014-07-22
US20110132219A1 (en) 2011-06-09
DE102008025994A1 (de) 2009-12-24
ES2371330T3 (es) 2011-12-29
DE102008025994B4 (de) 2011-06-09

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