EP3678864B1 - Rouleau distributeur ainsi que machine d'impression comprenant plusieurs groupes d'impression pourvus d'un tel rouleau - Google Patents

Rouleau distributeur ainsi que machine d'impression comprenant plusieurs groupes d'impression pourvus d'un tel rouleau Download PDF

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Publication number
EP3678864B1
EP3678864B1 EP18726148.2A EP18726148A EP3678864B1 EP 3678864 B1 EP3678864 B1 EP 3678864B1 EP 18726148 A EP18726148 A EP 18726148A EP 3678864 B1 EP3678864 B1 EP 3678864B1
Authority
EP
European Patent Office
Prior art keywords
roller
printing
outer body
inking
chamber
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.)
Active
Application number
EP18726148.2A
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German (de)
English (en)
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EP3678864A1 (fr
Inventor
Christian Arnold
Bernd Masuch
Wolfgang Reder
Helmut Schmidt
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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
Priority claimed from DE102017215920.0A external-priority patent/DE102017215920A1/de
Priority claimed from DE102018200333.5A external-priority patent/DE102018200333A1/de
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP3678864A1 publication Critical patent/EP3678864A1/fr
Application granted granted Critical
Publication of EP3678864B1 publication Critical patent/EP3678864B1/fr
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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
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/004—Driving means for ink rollers
    • 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
    • B41P2213/70—Driving devices associated with particular installations or situations
    • B41P2213/73—Driving devices for multicolour presses
    • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60—Devices for transferring printing plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2231/00—Inking devices; Recovering printing ink
    • B41P2231/10—Axially segmented ducter rollers

Definitions

  • the invention relates to a traversable roller and a printing machine with printing units with such a roller according to the preamble of claims 1 and 14, respectively.
  • a traversable roller is known, the outer body of which, encompassing the outer surface, can be moved back and forth on an axis by the application of compressed air to two chambers formed in the interior of the roller.
  • the chambers are sealed against each other and to the outside by means of seals.
  • a changeable roller based on the same principle is also by the EP 0 453 847 A1 disclosed.
  • Such as B. from the WO 2016/008705 A1 is known, in the packaging industry in a device or a printing machine for decorating hollow bodies each having a cylindrical outer surface, a plurality of printing units are mostly used. Each of these printing units transfers one printing ink to a printing blanket that is used jointly by these printing units. The outer surface of the hollow body in question is then moved by a relative movement between the outer surface of the hollow body in question and the previously in particular multi-colored printing blanket, in particular by rolling the outer surface of the hollow body in question on this printing blanket, with a z. B. decorated multicolored print motif.
  • the respective printing forme cylinder receives the printing ink via an inking unit comprising several rollers, at least one of which is designed as a traversable roller, in particular as a traversable rider roller.
  • a changeable roller is disclosed, which is moved axially back and forth via the alternating action of two piston chambers provided on both sides of a piston.
  • the piston-piston chamber system is arranged within the roller body, the piston being axially fixed and the piston chamber bottoms axially movable on the axis on the inside of the roller outer body.
  • the DE 10 2005 040 614 A1 relates to a changeable roller, the interior of which can be tempered by the supply and discharge of temperature control medium.
  • the one running in the center of the roller axis is rotatably mounted in side frame parts and axially displaceable.
  • a gap seal protecting the bearing is provided, which absorbs an axial relative movement between the frame and the roller.
  • the traversing drive acting via a roller chain works against a compression spring arranged between the roller and the radial bearing.
  • journal of a changeable roller is mounted axially movable and rotatable in the frame.
  • a gap seal is provided between the axles and the bearing bushing fixed to the frame.
  • the DE 10 2006 026 346 A1 relates to a hydraulic lifting drive of an axially oscillatable roller, the roller oscillating in one direction by applying a fluid from a hydraulic pump to an internal piston chamber.
  • a return in the other direction is carried out by a compression spring which is arranged between the outer roller body and a locking ring provided on the stationary roller axis.
  • the DE 38 00 658 A1 discloses a device for applying ink and / or dampening solution to a printing forme with at least one applicator roller that can be adjusted to the printing forme, the jacket of which is mounted on a central support and is arranged to be displaceable in the axial direction and interacts with a distribution cylinder that can be driven to oscillate in the axial direction, the axial Stroke of the shell of the applicator roller is limited and damped on both sides, the oscillating shell of the applicator roller and the carrier receiving it delimiting at least one compression space on both sides at least in the end phase of the respective stroke.
  • the invention is based on the object of creating an improved changeable roller and a printing machine with printing units with such a roller.
  • roller driven, ie traversed, by a pneumatic drive is the low cost compared to mechanical drive solutions. Since the traversing drive is integrated in the roller, the drive does not require any additional space. It is also particularly easy to retrofit. Such a roller also works with particularly little wear.
  • An embodiment with a partially, predominantly or even completely non-contacting sealing system is particularly advantageous.
  • This sealing system which is at least partially or even completely non-contact, does not lead to any additional friction-related heat generation.
  • no additional force overcoming the friction is required to generate the traversing stroke.
  • roller according to the invention is presented in connection with a particularly advantageous application in a printing unit of a printing machine for printing hollow bodies, in particular a can printing machine, but is not fundamentally restricted to this per se.
  • Fig. 1 shows, in a simplified schematic representation and by way of example, a device for printing or for decorating hollow bodies 01, in particular each having a preferably cylindrical outer surface, e.g. B. two-part cans 01, this hollow body 01 with a conveyor z. B. sequentially the z. B. supplied as a rotating or at least rotatable feed wheel, in particular designed as a mandrel wheel 02 transport device and held there individually on a holder on this transport device.
  • this transport device is preferably designed as a mandrel wheel 02.
  • a printing ink-transmitting device 03 e.g. B.
  • a rotating or at least rotatable segment wheel 03 together, along the or the circumference of which several printing blankets are arranged one behind the other.
  • a plurality of printing forme cylinders 04, in particular plate cylinders 04 are provided along its circumference, which are radially adjusted or at least adjustable against this segment wheel 03, with a printing forme, in particular a printing block, being arranged on the respective outer surface of this printing forme cylinder 04 or plate cylinder 04
  • This printing block is particularly suitable for executing a letterpress process.
  • a specific printing ink is supplied to each of the printing forme cylinders 04 or plate cylinders 04 by means of an inking unit 06 in order to color its printing forme or printing block.
  • the printing forme cylinders 04 are each designed as a plate cylinder 04 carrying at least one printing block.
  • Fig. 2 and 3 show in a simplified schematic representation some details of the inking unit 06 cooperating with a plate cylinder 04, which z. B. for use in the in Fig. 1
  • the device shown is provided for printing or for decorating, in particular, hollow bodies 01 each having a preferably cylindrical outer surface.
  • the inking unit 06 proposed here advantageously has a very short, in particular two-roller, roller train consisting of only a few, preferably a maximum of five rollers, for the ink transport from an ink reservoir to the plate cylinder 04 in question.
  • this compactor only consists of a single roller 07, z. B. inking roller 07 and a roller 08, preferably designed as an anilox roller 08, e.g. B. Inking unit roller 08.
  • An inking unit 06 with a roller train consisting of a maximum of five rollers belongs to the category of short inking units.
  • Fig. 2 shows an example of a (short) inking unit 06 with a two-roller roller train in a first operating position in which the inking roller 07 and the anilox roller 08 are positioned against each other, the inking roller 07 is positioned against the plate cylinder 04 and the plate cylinder 04 is also positioned radially against the printing ink from the plate cylinder 04 on the outer surface of the respective hollow body 01 transmitting device 03, in particular on the segment gear 03 are employed.
  • Fig. 3 shows, however, for that in the Fig.
  • the inking unit 06 shown has a second operating position in which the inking roller 07 and the anilox roller 08 are switched off from one another, the inking roller 07 is switched off from the plate cylinder 04 and the plate cylinder 04 is also switched off from the printing ink-transferring device 03, in particular from the segmented wheel 03.
  • the on and off mechanism will be discussed later.
  • the printing forme cylinder 04 which is preferably designed as a plate cylinder 04
  • the inking unit roller 08 which is preferably designed as an anilox roller 08
  • z. B. each independently from a motor 11; 12 driven in rotation, in particular in the case of the one preferably used in the Fig. 2 and 3 illustrated inking unit 06, the relevant motor 11; 12 z. B. in its respective speed and / or angular position of a z. B. electronic control unit is in particular regulated or at least controllable.
  • the z. B. designed as a segment wheel 03 printing ink transmitting device 03 is z. B. rotatively driven by its own drive or by a central machine drive.
  • the inking roller 07 is or will be rotatively driven by the anilox roller 08 by friction.
  • an outer diameter d07 of the inking roller 07 and an outer diameter d04 of the at least one printing form, in particular the plate cylinder 04 carrying at least one printing block are the same in terms of amount.
  • On the lateral surface of the plate cylinder 04 is at least one Printing clichés arranged or at least can be arranged, so that in the embodiment with the same external diameter d04; d07, the plate cylinder 04 carrying the printing block and the inking roller 07 each have an identical circumferential length.
  • the inking roller 07 in the first operating position of the inking unit 06 which interacts with the plate cylinder 04, in which the inking roller 07 and the anilox roller 08 are positioned against one another, the inking roller 07 is positioned on the plate cylinder 04 and the plate cylinder 04 is also positioned on the segmented wheel 03, at least the respective centers of the plate cylinder 04, the inking roller 07 and the anilox roller 08 are arranged along the same straight line G.
  • a detection device z. B. is provided in the form of a rotary encoder, this rotary encoder in particular being rigidly connected to a shaft of the inking roller 07.
  • the signal generated by the rotary encoder when the inking roller 07 rotates is used by the control unit to set the speed and / or angular position of the inking roller 07 by means of the rotation of the anilox roller 08 or, if necessary, to track it in such a way that there is synchronism between the plate cylinder 04 and of the inking roller 07 is set or is set so that the peripheral speed of the inking roller 07 corresponds to the peripheral speed of the plate cylinder 04 within previously defined permissible tolerance limits.
  • the control unit preferably adjusts the circumferential speed of the anilox roller 08 during the setting phase carried out by it in such a way that it has an advantage or lag compared to the circumferential speed of the plate cylinder 04, particularly briefly - and therefore not permanently.
  • the plate cylinder 04 and inking roller 07 With the same circumferential length in terms of amount and by setting the synchronism between the plate cylinder 04 and the inking roller 07, the effect of stenciling, which is detrimental to the printing quality, is largely avoided.
  • the drive concept described here with a friction-driven paint application roller 07 also has the advantage that for the Inking roller 07 a separate drive is not required, which saves costs and also because of the simpler mechanical construction z. B. an exchange of the inking roller 07 facilitates maintenance or repair work.
  • the inking roller 07 has a closed, preferably rubberized, lateral surface.
  • the inking unit roller 08 which is preferably designed as an anilox roller 08, has a z. B. coated with a ceramic shell surface, with a hashur of z. B. 80 lines per centimeter of axial length of the anilox roller 08 or a cell structure is formed.
  • the outer diameter d08 of the anilox roller 08 is preferably larger than the outer diameter d07 of the inking roller 07 have the largest possible delivery volume.
  • the respective direction of rotation of the segmented wheel 03, the plate cylinder 04, the inking roller 07 and the anilox roller 08 is indicated by an arrow indicating the direction of rotation.
  • the inking unit roller 08 which is preferably designed as an anilox roller 08, has a temperature control device, with the aid of which the jacket surface of this roller is temperature controlled.
  • the temperature control of the anilox roller 08 works z. B. with a introduced into the interior of the anilox roller 08 temperature control fluid, the temperature control fluid z. B. is water or another liquid coolant.
  • the temperature control device of the anilox roller 08 With the temperature control device of the anilox roller 08, the delivery volume of the anilox roller 08 can be influenced, since this influences the viscosity of the printing ink to be transported by the inking unit 06.
  • the delivery volume of the anilox roller 08 and the viscosity of the printing ink to be transported by the inking unit 06 in turn ultimately influence an ink density of the printing ink to be applied to the cylindrical outer surface of the hollow body 01 to be printed.
  • a thickness of one on the cylindrical surface of the to printing hollow body 01 to be applied, formed by the printing ink color film is z. B. at about 3 microns.
  • the ink reservoir of the inking unit 06 is z. B. designed as a chamber doctor blade system 09 acting in conjunction with the anilox roller 08.
  • a chamber doctor blade system 09 acting in conjunction with the anilox roller 08.
  • this chamber doctor blade system 09 at least one ink trough, a doctor beam that is set axially parallel to the anilox roller 08 or at least adjustable, and preferably also a pump for conveying the printing ink form a single structural unit.
  • This chamber doctor blade system 09 is in the inking unit 06, ie on a frame of the inking unit 06, preferably only on one side z. B.
  • This structural unit of the chamber doctor blade system 09 preferably forms a cantilever arm on a side frame of the inking unit 06.
  • Fig. 4 shows in a perspective illustration the chambered doctor blade system 09, which is designed as a single structural unit, in cooperation with the anilox roller 08 of the inking unit 06.
  • the anilox roller 08 After the anilox roller 08 printing ink from the ink reservoir, d. H. in particular from the chamber doctor blade system 09, the anilox roller 08 transports this printing ink directly and directly or via further rollers of the roller train belonging to the inking unit 06 to the preferably only one inking roller 07.
  • a roller 13 of the inking unit 06 is preferably used as a changeable roller 13, e.g. B. distribution roller 13 executed.
  • a distribution roller 13 can be provided directly in the roller train of an inking unit 06 designed as a roller inking unit, but in the embodiment shown here is a so-called rider roller 13 with the circumference of one of the rollers 07; 08 of the inking unit 13, in particular short inking unit 06, executed working together. In here set out and In an advantageous embodiment, it is designed as a traversable rider roller 13 that interacts with the outer surface of the anilox roller 08.
  • the traversable friction roller 13 exemplified here as a rider roller 13 is z. B. in an area following the chamber doctor blade system 09 attached to the anilox roller 08 in the direction of rotation of the anilox roller 08 between the chamber doctor blade system 09 and the inking roller 07, preferably employed or at least adjustable to the anilox roller 08 in order to ensure uniformity of the ink application on the anilox roller 08 and its ink transport to enhance.
  • the rider roller 13 is arranged axially parallel to the anilox roller 08. Contrary to other possible designs, the distribution roller 13, designed here as a rider roller 13, is not regarded as belonging to the roller train of the inking unit 06, since it does not transfer any printing ink from the anilox roller 08 to another roller. The here from the anilox roller 08 z.
  • B. rotatively driven by friction rider roller 13 has z. B. a rubberized outer surface.
  • the distribution roller 13 can also be driven directly by a motor via a gear unit.
  • the rider roller 13 employed on the anilox roller 08 sucks some of the printing ink picked up by the anilox roller 08 from the chamber doctor blade system 09 from the hash or the cells of the anilox roller 08 and at least partially applies this printing ink to the surface of the anilox roller 08 when it rolls on the surface of the anilox roller 08 Anilox roller 08 formed webs.
  • the rider roller 13 rolling on the anilox roller 08 causes the anilox roller 08 to deliver a larger amount of printing ink to the inking roller 07.
  • a temperature control device having anilox roller 08 also improves the effectiveness of a control of the ink density in that the rider roller 13 rolling on the anilox roller 08 contributes to the provision of a larger amount of printing ink.
  • the rider roller 13 rolling on the anilox roller 08 reduces both density differences that may arise from manufacturing tolerances of the anilox roller 08 and the risk of the hashur being visible or cells of the anilox roller 08 on the printing material, that is to say here on the outer surface of the hollow body 01 to be printed as a result of an insufficient amount of ink being applied at least in places.
  • the printing forme cylinder or plate cylinder 04 is in particular mounted at both ends on a load arm of a preferably one-sided first lever arrangement 18 consisting of a force arm and the load arm, the force arm and the load arm of this first lever arrangement 18 arranged at an angle to the force arm together around an axis parallel to the Plate cylinder 04 directed first axis of rotation 19 are pivotable.
  • B. arranged in the form of a hydraulic or pneumatic working cylinder, whereby when this first drive 21 is actuated, depending on its direction of action, the printing forme cylinder or plate cylinder 04 arranged on the load arm of this first lever arrangement 18 is either supported by a printing blanket z.
  • the segment wheel 03 is turned off or employed at the same. To limit the pressure from the printing forme cylinder or plate cylinder 04 against the printing blanket in question z. B.
  • a first stop 22 is provided, for example, for the power arm of the first lever arrangement 18, by means of which a path covered by the pivoting movement of the printing forme cylinder or plate cylinder 04 against the segmented wheel 03 is limited.
  • the contact pressure exerted by the printing forme cylinder or plate cylinder 04 against the segmented wheel 03 can be adjusted.
  • the inking roller 07 is also, in particular, at both ends Mounted on a load arm of a preferably one-sided second lever arrangement 23 consisting of a force arm and the load arm, the force arm and the load arm of this second lever arrangement 23 being pivotable together about the first axis of rotation 19, which is axially parallel to the plate cylinder 04.
  • inking unit roller 08 designed as an anilox roller 08, in particular mounted at both ends on a load arm of a preferably unilateral third lever arrangement 24 consisting of a force arm and the load arm, the force arm and the load arm of this third lever arrangement 24 together around a second axis of rotation 26 which is axially parallel to the anilox roller 08 are pivotable, the second axis of rotation 26 of the third lever arrangement 24 being arranged on the second lever arrangement 23.
  • the second axis of rotation 26 is preferably designed to be stationary on the second lever arrangement 23.
  • a preferably controllable second drive 27 which, when it is actuated, acts on the force arm of the second lever arrangement 23, by means of which the inking roller 07 can be adjusted to or from the plate cylinder 04 depending on the direction of action of the second drive 27.
  • a preferably controllable third drive 28 which, when it is actuated, acts on the force arm of the third lever arrangement 24, by means of which the anilox roller 08, preferably together with the chamber doctor blade system 09, can be adjusted to or from the inking roller 07 depending on the direction of action of the third drive 28 this can be turned off.
  • the second drive 27 and / or the third drive 28 are each z. B.
  • the pivoting movement of the load arm of the second lever assembly 23 is e.g. B. limited by a preferably adjustable, in particular adjustable by an eccentric first stop system 29, whereby the contact pressure exerted by the inking roller 07 against the printing forme cylinder or plate cylinder 04 is limited or at least limited.
  • the pivoting movement of the The load arm of the third lever assembly 24 is e.g. B. limited by a preferably adjustable, in particular adjustable by an eccentric second stop system 31, whereby the contact pressure exerted by the anilox roller 08 against the inking roller 07 is limited or at least can be limited.
  • Fig. 2 shows an example of a first operating state in which the first drive 21 and the second drive 27 and the third drive 28 are each inactive or in their idle state, whereby the anilox roller 08 to the inking roller 07 and the inking roller 07 to the printing forme cylinder or plate cylinder 04 and the printing forme cylinder or plate cylinder 04 are each employed on the segment wheel 03.
  • Fig. 3 shows an example of a second operating state in which the first drive 21 and the second drive 27 and the third drive 28 are each actuated or in their working state, whereby the anilox roller 08 from the inking roller 07 and the inking roller 07 from the printing forme cylinder or plate cylinder 04 and the Printing forme cylinder or plate cylinder 04 are each turned off by segment wheel 03.
  • the respective power arm and / or load arm of the three aforementioned lever arrangements 18; 23; 24 is or are each z. B. formed as a pair of opposing lever rods or side frame walls, between which either the printing forme cylinder or plate cylinder 04 or the inking roller 07 or the anilox roller 08 is arranged in the respective assignment described above.
  • the three aforementioned lever assemblies 18; 23; 24 are each arranged in different vertical planes spaced from one another, so that they do not interfere with one another in their respective pivotability.
  • the traversable roller 13 is embodied as a pneumatic traversable roller 13, as set out below.
  • the roller 13 comprises an outer roller body 14 which is mounted on an inner roller body 16 such that it can be moved axially back and forth, the reciprocating movement being able to be brought about by a pneumatic drive.
  • the supply of compressed air takes place, for example, via valves from a compressed air source 17, which is only indicated schematically.
  • At least one chamber 32; 33 which in the roll interior in the manner of a cylinder-piston system between one or more roll outer body fixed, z. B. one-part or multi-part components 34; 36; 37 and one or more roller inner body fixed, z. B. one-part or multi-part components 38; 39, e.g. B. components 38; 39, is designed to be acted upon with compressed air.
  • the back and forth movement is basically pneumatic in both directions by alternately acting on two such chambers 32; 33 with compressed air, or pneumatically in only a first direction by acting on a chamber 32; 33 realized with compressed air against a spring force and back in the second direction by the spring force with the compressed air switched off or reduced in pressure.
  • a first and a second chamber 32; 33 which are mounted in the inside of the roll in the manner of a cylinder-piston system between one or more components 34; 36; 37 and one or more one-part or multi-part components 38; 39, e.g. B. components 38; 39, are formed, can be acted upon with compressed air.
  • the (respective) component 34; 36; 37 can be formed by a cylindrical roller shell body 34 of the roller outer body 14 itself or, preferably, by a component 36, 37, in particular bushes 36; 37.
  • the component 38; 39 can be connected by a cylindrical axis 38 or shaft 38 of the inner roller body 16 itself or preferably by an external one This molded or attached component 39, in particular a ring 39, can be formed.
  • a spring element is provided between the outer roller body 14 and the inner roller body 16, which by means of an axial movement of the outer roller body 14 subject to compressed air in the first direction with one acting in the opposite direction and / or directed force is biased or can be biased.
  • the spring element is arranged between the outer roller body 14 and the inner roller body 16 in such a way that when the pressure in the first chamber 32 is reduced or eliminated, it moves the outer roller body 14 back against the first direction.
  • the spring element is designed, for example, in the form of a compression spring which is compressed when compressed air is applied to the chamber 32 and moves the outer roller body 14 back in the opposite direction when the air pressure is reduced, or in the form of a tension spring which is pulled apart when compressed air is applied to the chamber 32 and when the air pressure is reduced, the roller outer body 14 is moved back in the opposite direction.
  • the non-contact seals 41; 42; 43 here preferably as simple gap seals 41; 42; 43 executed and / or no mechanically effective parts between these parts which are axially movable relative to one another, ie none between the parts is provided by contacting, in particular force-applied, system effective seal.
  • An axially extending length extending from chamber 32; 33 forth adjoining gap seal 41; 42; 43 is greater than three times a maximum axial stroke H and / or twice an axial extent of the chamber 32; 33 and / or as a tenth of the, in particular usable, cylinder barrel length L13.
  • the length z. B. be understood the length that is effective between the relevant, to be sealed against each other relatively movable parts as a gap seal, so the o. G. does not exceed the maximum gap width. This can be done in the case of subsections interrupted by grooves between the two relatively movable parts of the relevant structural elements 34; 36; 37; 38; 39 be the sum of the lengths in the axial direction.
  • the two chambers 32; 33 are preferably provided on both sides of the ring-shaped structural element 39, which is fixed to the roller inner body, and are provided on the front side in each case by a bush-like structural element 36; 37 limited.
  • a contact-free seal 41; 42; 43 in particular gap seal 41; 42; 43, provided.
  • the surfaces of the facing, the non-contact seal 41; 42; 43 between accommodating sides have a roughness with an average roughness depth Rz (DIN ISO 1302) of, for example, a maximum of 10, preferably a maximum of 4.
  • Rz average roughness depth
  • the inner roller body 16 preferably comprises an axle 38 carrying the outer roller body 14 via roller bearings 44 or is designed as such.
  • the two chambers 32; 33 are preferably in each case from one roller end face by means of stub axles protruding from the end of the roller 13 via corresponding channels 47; 48, e.g. B. holes 47; 48, supplied with compressed air.
  • the roller bearing 44 can have a running surface widened by at least the lateral stroke of the roller 13.
  • the roller jacket body 34 encompassed by the roller outer body 14 preferably carries a plastic layer 46, in particular a layer 46 made of Rilsan®, on its jacket surface, or is formed by such a layer.
  • roller 13 with the non-contact seal can also be used particularly advantageously for printing units with a larger roller width, e.g. B.
  • Printing units for waterless offset printing with, for example, a roller or printing width of 1,000 mm and more, can be used.
  • the large mass of the roller outer body 14 can then be moved pneumatically without additional large friction losses, as is the case with seals.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (15)

  1. Cylindre interchangeable (13) d'un groupe d'impression présentant un dispositif d'encrage à cylindre d'une machine à imprimer avec un corps extérieur de cylindre (14), lequel est monté sur un corps intérieur de cylindre (16) de façon mobile axialement en va-et-vient, dans lequel pour le mouvement axial du corps extérieur de cylindre (14) dans au moins une première direction, un entraînement pneumatique avec au moins une première chambre (32 ; 33) est prévu, qui est réalisée à l'intérieur du cylindre à la façon d'un système piston-cylindre entre un ou plusieurs éléments (34 ; 36 ; 37) fixé au corps extérieur de cylindre et un ou plusieurs éléments (38 ; 39) fixés au corps intérieur de cylindre et peut être soumise à l'effet d'un air comprimé, caractérisé en ce que les parties mobiles axialement les unes par rapport aux autres des éléments (34 ; 36 ; 37 ; 38 ; 39) délimitant la chambre (32 ; 33) réalisent entre elles sur la face tournée l'une vers l'autre un joint sans contact (41 ; 42 ; 43).
  2. Cylindre selon la revendication 1, caractérisé en ce qu'un entraînement pneumatique ou basé sur une force élastique est prévu, par lequel un mouvement axial du corps extérieur de cylindre (14) dans la direction opposée à la première direction peut être provoqué.
  3. Cylindre selon la revendication 1 ou 2, caractérisé en ce qu'une deuxième chambre (33 ; 32), qui est également réalisée à l'intérieur du cylindre à la façon d'un système piston-cylindre entre un ou plusieurs éléments (34 ; 36 ; 37) fixés au corps extérieur de cylindre et un ou plusieurs éléments (38 ; 39) fixés au corps intérieur de cylindre est prévue, et peut être soumise à l'effet d'un air comprimé, afin de provoquer un mouvement axial du corps extérieur de cylindre (14) dans la direction opposée à la première direction, dans lequel les parties mobiles axialement les unes par rapport aux autres des éléments (34 ; 36 ; 37 ; 38 ; 39) délimitant la deuxième chambre (33 ; 32) réalisent entre elles sur la face tournée l'une vers l'autre un joint sans contact (41 ; 42 ; 43).
  4. Cylindre selon la revendication 3, caractérisé en ce que les deux chambres (32 ; 33) sont prévues des deux côtés d'un élément (39) annulaire fixé au corps intérieur de cylindre et sont délimitées frontalement respectivement par un élément (36 ; 37) du type douille fixé au corps extérieur de cylindre.
  5. Cylindre selon la revendication 3 ou 4, caractérisé en ce que les deux chambres (32 ; 33) sont alimentées en air comprimé à partir de respectivement une face frontale de cylindre par des bouts d'axe faisant saillie frontalement du cylindre (13).
  6. Cylindre selon la revendication 1 ou 2, caractérisé en ce qu'un élément ressort est disposé entre le corps extérieur de cylindre (14) et le corps intérieur de cylindre (16) de telle sorte qu'il est précontraint ou peut être précontraint à la suite d'un mouvement axial soumis à l'effet d'un air comprimé du corps extérieur de cylindre (14) dans la première direction avec une force agissant et/ou orientée dans la direction opposée, et qu'il repousse le corps extérieur de cylindre (14) à l'encontre de la première direction en cas de diminution ou suppression de la pression dans la première chambre (32).
  7. Cylindre selon la revendication 1, 2, 3, 4, 5 ou 6, caractérisé en ce que le joint sans contact (41 ; 42 ; 43) est conçu sous la forme d'un joint à fente (41 ; 42 ; 43).
  8. Cylindre selon la revendication 7, caractérisé en ce qu'une largeur de fente d'au moins 0,03 mm est prévue pour le joint à fente (41 ; 42 ; 43).
  9. Cylindre selon la revendication 7 ou 8, caractérisé en ce qu'une largeur de fente de maximum 0,15 mm est prévue pour le joint à fente (41 ; 42 ; 43).
  10. Cylindre selon la revendication 7, 8 ou 9, caractérisé en ce qu'une longueur s'étendant axialement du joint à fente (41 ; 42 ; 43) se raccordant à la chambre (32 ; 33) est plus grande que le triple d'une course (H) axiale maximale et/ou que le double d'une étendue axiale de la chambre (32 ; 33) et/ou qu'un dixième de la longueur utile de corps de cylindre (L13) du cylindre (13).
  11. Cylindre selon la revendication 1, 2, 3, 4, 5, 6, 7, 8, 9 ou 10, caractérisé en ce qu'un joint sans contact (41 ; 42 ; 43) est prévu entre une face orientée vers l'extérieur de l'élément (38) fixé au corps intérieur de cylindre et une face orientée vers l'intérieur du corps extérieur de cylindre (14) et/ou entre une face orientée vers l'intérieur de l'élément (36 ; 37) fixé aux corps extérieur de cylindre respectif et une face orientée vers l'extérieur du corps intérieur de cylindre (16) .
  12. Cylindre selon la revendication 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ou 11, caractérisé en ce que les surfaces des faces tournées l'une vers l'autre, réalisant entre elles le joint sans contact (41 ; 42 ; 43), présentent une rugosité avec une profondeur de rugosité Rz moyenne de maximum 10.
  13. Cylindre selon la revendication 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ou 12, caractérisé en ce que le corps intérieur de cylindre (16) comprend un axe (38) portant le corps extérieur de cylindre (14) par l'intermédiaire de paliers à roulement (44) ou est conçu en tant que tel.
  14. Machine à imprimer pour la décoration de corps creux présentant respectivement une surface cylindrique avec plusieurs groupes d'impression comprenant respectivement un cylindre porte-plaque (04) et un dispositif d'encrage (06), lesquels coopèrent par l'intermédiaire du cylindre porte-plaque (04) avec un même blanchet d'un appareil (03) transférant l'encre d'impression sur les corps creux à imprimer, caractérisée en ce que le dispositif d'encrage (06) comprend un rouleau de frottement (13), lequel est conçu conformément au rouleau (13) selon l'une quelconque des revendications 1 à 13.
  15. Machine à imprimer selon la revendication 14, caractérisée en ce que le dispositif d'encrage (06) présente un cylindre tramé (08).
EP18726148.2A 2017-09-08 2018-05-22 Rouleau distributeur ainsi que machine d'impression comprenant plusieurs groupes d'impression pourvus d'un tel rouleau Active EP3678864B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017215920.0A DE102017215920A1 (de) 2017-09-08 2017-09-08 Changierbare Walze sowie Druckmaschine mit mehreren Druckwerken mit einer derartigen Walze
DE102018200333.5A DE102018200333A1 (de) 2018-01-11 2018-01-11 Changierbare Walze sowie Druckmaschine mit mehreren Druckwerken mit einer derartigen Walze
PCT/EP2018/063324 WO2019048088A1 (fr) 2017-09-08 2018-05-22 Cylindre interchangeable ainsi que machine à imprimer comprenant plusieurs groupes d'impression pourvus d'un cylindre de ce type

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Publication Number Publication Date
EP3678864A1 EP3678864A1 (fr) 2020-07-15
EP3678864B1 true EP3678864B1 (fr) 2021-08-25

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EP18726148.2A Active EP3678864B1 (fr) 2017-09-08 2018-05-22 Rouleau distributeur ainsi que machine d'impression comprenant plusieurs groupes d'impression pourvus d'un tel rouleau

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EP (1) EP3678864B1 (fr)
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Publication number Priority date Publication date Assignee Title
CN114233250B (zh) * 2021-12-15 2023-05-26 中国石油大学(北京) 深水组合套管的安装装置及安装方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800658A1 (de) 1988-01-13 1989-07-27 Kotterer Grafotec Vorrichtung zum auftragen von farbe und/oder feuchtmittel auf eine druckform
CH682895A5 (fr) 1990-04-23 1993-12-15 Bobst Sa Dispositif de déplacement des baladeurs dans une machine d'impression.
US5125340A (en) 1990-09-21 1992-06-30 Rockwell International Corporation Oscillator apparatus for imparting axial oscillations to a roller
SE500254C2 (sv) * 1991-10-09 1994-05-24 Gustav Rennerfelt Anordning för överföring av en roterande vals rotation till en axiell rörelse
DE19539502A1 (de) 1995-10-24 1997-05-15 Koenig & Bauer Albert Ag Lagerung eines Reibzylinders einer Rotationsdruckmaschine
DE19603765A1 (de) * 1996-02-02 1997-08-07 Heidelberger Druckmasch Ag Vorrichtung zum axialen Bewegen einer Reibwalze
DE29623426U1 (de) * 1996-12-20 1998-05-28 Koenig & Bauer Albert Ag Walze
DE19814561C2 (de) * 1998-04-01 2001-12-13 Wolfgang Niemann Fluidzylinder für oszillierende Antriebe
DE102005040614A1 (de) 2005-08-27 2007-03-01 Man Roland Druckmaschinen Ag Druckwerk einer Druckmaschine
DE102006026346A1 (de) 2006-06-02 2007-12-06 Robert Bosch Gmbh Hydraulischer Hubantrieb
JP2015510462A (ja) * 2012-02-01 2015-04-09 クラウン・パッケージング・テクノロジー・インク 容器の装飾
EP3169520B1 (fr) 2014-07-16 2018-04-25 KBA-MetalPrint GmbH Dispositif avec plusieurs unités d'impression pour imprimer sur corps creux

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Publication number Publication date
US11186079B2 (en) 2021-11-30
CN111051064B (zh) 2021-05-25
EP3678864A1 (fr) 2020-07-15
US20200376829A1 (en) 2020-12-03
CN111051064A (zh) 2020-04-21
WO2019048088A1 (fr) 2019-03-14

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