DE102006052677A1 - Printing machine and method for operating the same - Google Patents

Printing machine and method for operating the same

Info

Publication number
DE102006052677A1
DE102006052677A1 DE200610052677 DE102006052677A DE102006052677A1 DE 102006052677 A1 DE102006052677 A1 DE 102006052677A1 DE 200610052677 DE200610052677 DE 200610052677 DE 102006052677 A DE102006052677 A DE 102006052677A DE 102006052677 A1 DE102006052677 A1 DE 102006052677A1
Authority
DE
Germany
Prior art keywords
substrate
characterized
printing
printing machine
preceding
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.)
Ceased
Application number
DE200610052677
Other languages
German (de)
Inventor
Frank Gunschera
Uwe Meyer
Jan Thorsten Weber
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.)
Windmoller and Holscher KG
Original Assignee
Windmoller and Holscher 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 Windmoller and Holscher KG filed Critical Windmoller and Holscher KG
Priority to DE200610052677 priority Critical patent/DE102006052677A1/en
Publication of DE102006052677A1 publication Critical patent/DE102006052677A1/en
Application status is Ceased legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403Drying webs
    • B41F23/0423Drying webs by convection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/04Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/145Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning on the non-perforated outside surface of which the material is being dried by convection or radiation
    • 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
    • B65H2301/50Auxiliary process performed during handling process
    • B65H2301/51Modifying a characteristic of handled material
    • B65H2301/517Drying material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00Application field
    • B65H2801/03Image reproduction devices
    • B65H2801/12Single-function printing machines, typically table-top machines

Abstract

The document relates to a printing machine and a method for operating the same. The printing machine is equipped at least with a dryer (5a, b) for drying straight printed substrate (2). Here, it is regarded as novel and inventive, that the dryer (5a, b) contains at least one guide element (12) on which (12) the printing material (2) can be guided past - and that the at least one guide element (12) has at least one surface contains, which is displaceable in a relative speed to the printing material (2).

Description

  • The The invention relates to a printing machine and a method of operation the same.
  • printing presses and in particular multicolor rotary printing presses have long been known. Because printing inks solvents such as water or hydrocarbons, has also been around for a long time tries to dry freshly printed images quickly. These There is a need since the substrate is relatively fast after he has gone through the nip again at any leadership or guiding elements passed is stacked or rolled up at the end of the printing process.
  • Especially in multicolor printing machines, the different colors are stacked on top of each other same area printed on the respective substrate, so that a multi-colored Printed image is created. In this context, there is a need to between two inking units to dry.
  • In spite of many years Development work and practical experience to the touched Topics are state-of-the-art drying devices and procedures Technology expensive and expensive. Particularly to complain about is that very large volumes of air per unit of time fed to the substrate and that this air is the dryer or the immediate one Neighborhood of the currently printed substrate with a low saturation of solvents leaves again.
  • To improve the drying of webs, therefore, a wide variety of measures have already been proposed. So beat the EP1 233 834 B1 and the DE 100 50 301 B4 the use of electrical or magnetic fields in order to influence the air flowing past the film such that a better drying comes about. However, there is still room for improvement in practice.
  • Therefore It is the object of the present invention, the drying devices of the prior art continue to improve. The task is through the characterizing features of claim 1 solved.
  • guide elements For the purposes of the present invention, all possible bodies such as rollers, sheets or Be railways. In particular rollers or webs (similar to conveyor tracks) can especially easy in a relative speed to the webs and usually also to the rest of the machine, the machine frame or the relevant workshop. Especially, although a relative movement between the guide element and components the rest of the machine (not just the substrate) come about should, should the relevant guide element be in operative connection with an actuator such as a drive.
  • The Direction of movement of the corresponding surfaces can be parallel or transverse aslant (45 °) too the direction of movement of the printing material can be adjusted. Also the sign of the movement can be varied as required (equal or mating), so that the desired relative speed between the surface or at least parts of the surface of the guide element and the printing material. To be considered desirable - depending on Range of application Relative speeds of 2, 4, 6 to 60 m / s.
  • Testing have shown that the printing substrate drying according to the present Invention works very well. This is apparently due to the fact that the preferably large Relative speed between the guide elements and the substrate causes in that a turbulent air flow is formed in the intermediate region. This air flow generates forces, the reliable the substrate spaced from the film. In the present context is of particular importance that the mentioned air turbulence always new, still unsaturated Air to the surface to be dried bring up and so more and more evaporation and / or evaporation of solvents allow. additional Benefits can be generated by drying the air in question and or is tempered. Usually one gets a heating one Cool prefer, because warmed up Air more and faster solvents can record.
  • Especially when using rollers as guide elements such drying or Lufttemperierungsvorrichtung (especially heating) are expediently mounted outside of the guide elements, so that no active heating is present within the guide elements. However, of course, heating of the guide elements by heated air passing the guide elements or passing through them onto the substrate may occur. As a complementary or as an independent, a drying or warming process favoring measure is of course a direk te heating of the guide elements themselves into consideration. Such a direct heating can be assumed if the heater is integrated directly into the guide element, and / or if the heat conduction by solid or solid contact in the heating of the guide element beyond the ambient temperature outweighs.
  • The Drying of the printing material web in the manner described is very efficient and therefore can be too surprising high solvent concentrations in the brought up for drying Lead air. Therefore, it is advantageous if already the guide elements themselves with air supply or discharge lines are provided.
  • at Commissioning the printing press, it is advantageous if the substrate first on the air supply elements is placed. With on the air supply elements can put too be meant that first there is a direct contact between substrate and guide elements. If the printing press goes into operation and the guide elements begin to To contribute drying and in a relative speed to the substrate are brought, the described air gap between substrate and guide elements mint, so lost the direct contact between substrate and guide elements goes.
  • Further embodiments The invention will become apparent from the description and the claims.
  • The individual figures show:
  • 1 Side view of a stand 1 a printing press
  • 2 Sketch of an embodiment of a guide element
  • 1 shows a side view of a stand 1 a series gravure printing machine, the material web 2 is fed in the direction of the arrow z on the left edge of the picture. The web initially runs on some guide rollers 3 in the area of the printing unit 9 one. This printing unit 9 includes the squeegee device 9 used to doctor off the impression cylinder 7 serves. This 7 forms with the impressionist 8th a printing nip in which the printing material is printed. The clip 11 and the dotted line between the two guide rolls 3 indicates that the inking unit 6 can also be avoided if not all inking units of the printing press are needed. In accordance with the medicine and the Anglo-Saxon linguistic usage one calls such a procedure also "Bypass".
  • The freshly printed substrate 2 will after passing the printing unit 6 the first dryer 5a fed. In this 5a The substrate runs on a variety of guide rollers 3 past. Of particular importance are the winds 4 , which are supplied via unillustrated lines with blown air, which they blow against the printed side of the substrate. By this measure, printing material is dried according to the prior art. According to the present invention, the fans would have to be replaced by film guiding elements that move relative to the web 2 to bring. Such film guide elements could for example be rollers or a fast-running endless belt (similar to a conveyor belt).
  • If the substrate web 2 As in the present case is guided on its unprinted side of guide rollers, it is possible, the distance between the web and the guide elements 4 through the positioning of guide rollers 3 and pre-set guide elements. In this case, it is also possible that even when the machine is stationary (for example, when setting up the same) no contact between guide elements and substrate comes about.
  • The printing material web 2 leaves the first dryer in the present embodiment 5a , the guide roller passes 3 and becomes the second dryer 5b fed. This is mirrored to the first dryer. After the train 2 also this second dryer 5b has left over a plurality of other guide rollers 3 in the direction indicated by the arrows z conveying direction another - not shown - fed printing unit. The mentioned device components of the stand 1 are on the machine frame 10 hinged.
  • 2 Figure 2 shows in sketched but more detailed form how a portion of a drying device might look in section. The role 12 assumes the function of the guide element in the sense of the present application. At this guide element is the printing substrate 2 past. This results in a wrap angle α of 180 °. The scroll rotates quickly, leaving itself between her and the substrate 2 forms the turbulent flow. On its other side, the printing material web is guided by an air flow through the lines 14 , which are traversed by air (arrows 14 ) is fed. The baffles 13 ensure that the air pressure built up by this air flow is not dissipated too quickly. Through the supply lines 14 One side of the printing material - here the still unprinted side - is subjected to drying air. It can be very useful to put compressed air inside the roll 12 to guide and provide air outlet openings in the peripheral surface thereof. In this way, unsaturated air can always come close to the freshly printed substrate 2 to be brought. Individually or additionally, openings in the lateral surface of the roll 12 be provided, is derived through the saturated air. The printing material web is again moved along the direction indicated by the arrow z. The role 12 turns in the direction of the arrow 16 around their main axis of inertia. LIST OF REFERENCE NUMBERS 1 Stand of a series gravure printing machine 2 Substrate, here substrate 3 guide roll 4 blowers 5a, b First and second dryers 6 doctor device 7 platen 8th impression roller 9 printing unit 10 machine frame 11 Bracket that indicates the "bypass route" 12 Roller / guide member 13 baffle 14 air supply 15 Arrow in the direction of the air flow 16 Arrow in the direction of rotation of the roll 12 17 Z Conveying direction of the printing material α Wrap angle of the roll 12

Claims (10)

  1. Printing machine, which is equipped with at least one dryer ( 5a , b) for drying straight printed substrate ( 2 ), characterized in that - the dryer ( 5a , b) at least one guide element ( 12 ) on which ( 12 ) the substrate ( 2 ) is passable - and that the at least one guide element ( 12 ) contains at least one surface which is in a relative speed to the 2 ) is displaceable.
  2. Printing machine according to claim 1, characterized in that the guide elements ( 12 ) as rotatable rollers ( 12 ) are equipped.
  3. Printing machine according to one of the preceding claims, characterized in that the axes of rotation of the rollers ( 12 ) have one of the following angles to the conveying direction of the printing substrate: 0 °, 45 °, 90 °.
  4. Printing machine according to one of the preceding claims, characterized in that the guide elements ( 12 ), in particular rollers, are not tempered.
  5. Printing machine according to one of the preceding claims, characterized in that additional media such as gases and air by suitable ventilation devices ( 14 ) in the guiding elements ( 12 ) to the substrate ( 2 ) are attachable.
  6. Printing machine according to the preceding claim characterized by heating or desiccant, with which the additional media are heated or dryable, before they first or repeatedly the Beduckstoff ( 2 ).
  7. Printing machine according to one of the preceding claims, characterized in that the printing substrate ( 2 ) at standstill of the printing press on at least a part of the guide elements ( 12 ) can be placed.
  8. Method for operating a printing press, in which the printed substrate being printed is dried, characterized in that the drying is brought about by guiding elements ( 12 ), where the substance ( 2 ) is passed during operation, with a relative speed to the substrate ( 2 ).
  9. Method according to the preceding claim, characterized in that at least a part of the printing substrate ( 2 ) at least and at least a part of the surface of the guide elements ( 12 ) is at least initially brought into contact with each other.
  10. Method according to one of the preceding claims, characterized in that the at least one guide element ( 12 ), on which the substance ( 2 ) is passed during operation, with a relative speed to the substrate and the machine frame is acted upon.
DE200610052677 2006-11-07 2006-11-07 Printing machine and method for operating the same Ceased DE102006052677A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200610052677 DE102006052677A1 (en) 2006-11-07 2006-11-07 Printing machine and method for operating the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610052677 DE102006052677A1 (en) 2006-11-07 2006-11-07 Printing machine and method for operating the same
PCT/EP2007/061772 WO2008055841A1 (en) 2006-11-07 2007-10-31 Printing press, and method for the operation thereof

Publications (1)

Publication Number Publication Date
DE102006052677A1 true DE102006052677A1 (en) 2008-05-08

Family

ID=39126208

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200610052677 Ceased DE102006052677A1 (en) 2006-11-07 2006-11-07 Printing machine and method for operating the same

Country Status (2)

Country Link
DE (1) DE102006052677A1 (en)
WO (1) WO2008055841A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108557549B (en) * 2018-04-24 2019-07-09 东莞顺裕纸业有限公司 A kind of corrugated paper detection flattening device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501684A1 (en) * 1985-01-19 1986-07-24 Aga Gas Gmbh Method and device for rendering inert the surface of a material web
DE3118855C2 (en) * 1980-10-16 1986-08-07 Argon Industrie Meccaniche S.R.L., Mailand/Milano, It
DE4441771A1 (en) * 1994-11-24 1996-05-30 Gerhard Klemm Drier for coated esp. screen printed material strip
EP1217454A2 (en) * 2000-12-22 2002-06-26 NexPress Solutions LLC Digital printing or copying machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1499078B2 (en) * 1966-11-23 1973-03-29 Method and device for stabilizing the position of a web in a floating IMPLEMENTATION OF THIS is blown by an at least partially tragfluegelprofilbegrenzten treatment chamber by means of a blowing agent, with the at least one warenbahnflaeche at an acute angle to its direction of movement
DE4415581C2 (en) * 1994-05-04 1995-12-07 Voith Gmbh J M A paper coating device
JP3255070B2 (en) * 1997-01-24 2002-02-12 東日印刷株式会社 Comprising a drying heating roller was rotary press
DE19823637C2 (en) * 1998-05-27 2002-07-18 Voith Paper Patent Gmbh Process for cooling a web of material
JP3446119B2 (en) * 1999-12-28 2003-09-16 株式会社東京機械製作所 Roller device and rotary press having the device
CN1859986A (en) * 2003-10-08 2006-11-08 L·贝内特 Printing web cleaner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118855C2 (en) * 1980-10-16 1986-08-07 Argon Industrie Meccaniche S.R.L., Mailand/Milano, It
DE3501684A1 (en) * 1985-01-19 1986-07-24 Aga Gas Gmbh Method and device for rendering inert the surface of a material web
DE4441771A1 (en) * 1994-11-24 1996-05-30 Gerhard Klemm Drier for coated esp. screen printed material strip
EP1217454A2 (en) * 2000-12-22 2002-06-26 NexPress Solutions LLC Digital printing or copying machine

Also Published As

Publication number Publication date
WO2008055841A1 (en) 2008-05-15

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OP8 Request for examination as to paragraph 44 patent law
8131 Rejection