EP3112156A1 - Flexodruckmaschine mit erhöhter funktionalität, insbesondere zum bedrucken von feinem und streckbarem material - Google Patents

Flexodruckmaschine mit erhöhter funktionalität, insbesondere zum bedrucken von feinem und streckbarem material Download PDF

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Publication number
EP3112156A1
EP3112156A1 EP16176466.7A EP16176466A EP3112156A1 EP 3112156 A1 EP3112156 A1 EP 3112156A1 EP 16176466 A EP16176466 A EP 16176466A EP 3112156 A1 EP3112156 A1 EP 3112156A1
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EP
European Patent Office
Prior art keywords
film
spooling
assembly
printing
flexographic machine
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
EP16176466.7A
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English (en)
French (fr)
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EP3112156B1 (de
Inventor
Giovanni ATTUCCI
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Maklaus Srl
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Maklaus Srl
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Filing date
Publication date
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Publication of EP3112156A1 publication Critical patent/EP3112156A1/de
Application granted granted Critical
Publication of EP3112156B1 publication Critical patent/EP3112156B1/de
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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
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/301—Devices for tripping and adjusting form rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • 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
    • B41F13/10—Forme cylinders
    • 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
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/30—Bearings mounted on sliding supports
    • 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
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34—Cylinder lifting or adjusting devices
    • B41F13/36—Cams, eccentrics, wedges, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0423—Drying webs by convection
    • B41F23/0426—Drying webs by convection using heated air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/005—Attaching and registering printing formes to supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/06—Devices for attaching printing elements or formes to supports for attaching printing elements to forme cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1262—Devices for attaching printing elements or formes to supports for attaching flexible printing formes without tensioning means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1262—Devices for attaching printing elements or formes to supports for attaching flexible printing formes without tensioning means
    • B41F27/1268—Devices for attaching printing elements or formes to supports for attaching flexible printing formes without tensioning means by self-locking or snap-on means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/304—Arrangements for inking roller bearings, forks or supports
    • B41F31/307—Sliding bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/32—Lifting or adjusting devices
    • B41F31/34—Cam, eccentric, wedge, or like devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/04—Rotary letterpress machines for printing on webs
    • B41F5/16—Rotary letterpress machines for printing on webs for multicolour printing
    • B41F5/18—Rotary letterpress machines for printing on webs for multicolour printing using one impression cylinder co-operating with several forme cylinders
    • 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

Definitions

  • the present invention relates to a flexographic machine with increased functionality, particularly for printing fine and extensible material.
  • this tension is usually adjusted by means of the use of gravity-actuated dandy rolls, the effectiveness of which is proportional to their manufacturing accuracy.
  • Tension control is fundamental for correct printing of the material, since extensible material does not tolerate well oscillations of traction tension.
  • the fluctuation of the tension in fact triggers sideways oscillations of the film during its travel, with a consequent loss of quality both in printing, due to a misalignment of the image among the individual colors, and in the printed roll, which thus has frayed edges.
  • a further drawback of machines of the traditional type resides in the difficulty of using printing plate cylinders with a large diameter, which by having large inertias due to their dimensions, clash with the structural limitations of the machine, which are not designed to withstand high stresses.
  • Printed extensible material is in fact used often to package goods with rather important volumes, and therefore in their "wrapping" various overlaps of the printing are created which make it illegible, when instead the broad repeat between contiguous prints would reduce the possibility of mutual overlap.
  • the poor convenience arises from machine downtimes caused by printing plate changing and by washing of the inking part.
  • Printing plate systems with a jacket are currently used, but their manufacture is extremely expensive, especially in a market in which printing is substantially a convenience and not a necessity.
  • a further drawback of machines of the traditional type resides in the difficulty of determining the pressure between the inking roller and the printing plate cylinder and between such cylinder and the impression roller.
  • the mutual pressure between the printing rollers is in fact the fundamental parameter that ensures print quality, its definition and the correct addition of ink to the printing plate.
  • a further drawback of machines of the traditional type resides in the difficulty in winding the printed spool, since using oscillating tension control systems triggers sideways oscillation phenomena during spooling which can be eliminated only by using expensive and precise final alignment systems.
  • a necessary condition in printing systems is the possibility to wind the printed extensible film in the two directions of rotation so that the printed face can remain selectively on the inside or on the outside of the spool.
  • the aim of the present invention is to provide a flexographic machine with increased functionality, particularly for printing fine and extensible material, that is capable of obviating the drawbacks cited above.
  • an object of the present invention is to provide a flexographic machine that allows to print and spool a film of fine and extensible material in a manner that is simple, quick, effective, efficient, and most of all by automating all the ordinary and extraordinary operations required for the operation of the machine proper.
  • a flexographic machine with increased functionality particularly for printing fine and extensible material, comprising:
  • the flexographic machine with increased functionality particularly for printing fine and extensible material, generally designated with the reference numeral 1, comprises first of all:
  • a station 8 for loading cores 9, made for example of cardboard, onto which the film 4 is to be wound so as to obtain a roll 11 of film 4 that is printed in the flexographic machine 1, is comprised; such roll is then unloaded in an unloading station 10 for its evacuation from the flexographic machine 1.
  • the printing assembly 5 comprises an impression roller 14 and at least one printing subassembly 15 provided with a printing plate cylinder 16 and with an inking roller 17 which are pressed against each other, the first one being adapted to be pressed tangentially against the outer surface of the impression roller 14, with the film 4 interposed between the impression roller 14 and the printing plate cylinder 16 for its printing.
  • each printing plate cylinder 16 is made of aluminum alloy so as to be as lightweight as possible, so that it can have a large diameter so as to be able to accommodate plates up to 1000 mm in linear extension without encountering constraints on the rotation rate due to its inertia.
  • each printing plate cylinder 16 has a plurality of calibrated recesses 18 provided in the thickness of its external jacket and adapted to accommodate non-detachably a plurality of magnets, not shown for the sake of graphic simplicity, in such a manner as to engage by magnetic attraction a printing plate, for example made of rubber or photopolymeric materials, which is provided with a support made of a ferromagnetic material, which is constituted for example by a metal plate having a calibrated thickness.
  • the printing plate provided in this configuration allows far simpler and quicker placement and removal operations with respect to the standard of machines of the traditional type.
  • the magnets of the printing plate cylinder 16 can be of the permanent-magnet type and glued, for example by means of an epoxy-based adhesive, in the respective calibrated recess 18.
  • the interface between the printing plate cylinder 16 and the printing plate thus defined can operate at up to and beyond a rate of 700 m/minute, which is equivalent to more than twice the maximum rate provided for the operation of the flexographic machine 1, ensuring maximum adhesion.
  • the alignment pins of the printing plate which are not shown for the sake of simplicity in illustration, are aligned upon the reset of the printing plate cylinder 16, an operation that is required for synchronization for prints in a plurality of colors.
  • each individual printing plate cylinder 16 has electrical axis control, it is possible to mutually synchronize the individual printed colors in a simple manner.
  • the printing plate cylinder 16 and the inking roller 17 are supported rotatably respectively by two sliders, respectively 19 and 20, which can move radially, for the first one, with respect to the impression roller 14 and, for the second one, with respect to the printing plate cylinder 15.
  • sliders 19 and 20 each of which can consist for example of a carriage with double recirculating ballscrew on linear guides, moved by pneumatic cylinders, are adapted for the approach or spacing of the printing plate cylinder 16 with respect to the impression roller 14 and of the inking roller 17 with respect to the printing plate cylinder 16 so as to adjust the mutual pressure between the cylinders 14, 16 and 17 of the flexographic machine 1 with the film 4 interposed between the impression roller 14 and the printing plate cylinder 15 for its printing.
  • means 21 for micrometric adjustment of the position of the sliders 19 and 20, which comprise, for each slider 19 or 20, an adjustment wheel 22 that can rotate eccentrically about a rotation axis 23 that is perpendicular to the direction of translational motion of the respective slider 19 or 20 so as to cause, in a controlled manner as a function of its rotation, a spacing or an approach of the respective slider 19 or 20 with respect to the rotation axis 23 and accordingly an approach or spacing of the printing plate cylinder 16 with respect to the impression roller 14 or of the inking roller 17 with respect to the printing plate cylinder 16.
  • the rotation of the adjustment wheel 22 is controlled by an actuator 24, for example of the linear type, and the slider 20 that supports the inking roller 17 is supported by the slider 19 that supports the printing plate cylinder 16.
  • the adopted solution allows to have high precision of the position of each slider 19 or 20, since the actuator 24 is provided internally with a potentiometer which, by reading the tension at the point where the stem is located, ensures the position thereof with a tolerance on the order of a tenth of a millimeter.
  • the error in the position of the adjustment wheel 22 is reduced by the ratio 1:13 with respect to that of the actuator 24 that rotates it, making the system extremely precise with respect to machines of the traditional type.
  • each slider 19 and 20 can be ensured instead by an abutment that can be adjusted by means of a screw, which contrasts against the respective adjustment wheel 22.
  • This simple system ensures that the positions of the printing plate cylinder 16 with respect to the impression roller 14 and of the inking roller 17 with respect to the printing plate cylinder 16 are extremely precise.
  • the adjustment of the abutments is substantially simplified, since it is sufficient to determine a reset of the system and therefore "adjust", even during printing, the position of the actuator 24 as a function of the required printing pressure.
  • a very important aspect is that the value of the position of the actuator 24 can be stored and therefore can be retrieved whenever the printing plate is used.
  • the two abutments, both the adjustment wheel 22 and the one mounted on the setting screw, constituted for example by a bearing, can have a tempered and ground contact surface in order to avoid local deformations that might cause positioning errors of each slider 19 or 20.
  • the abutment mounted on the setting screw can be constituted by a ball bearing, so that the friction between the adjustment wheel 22 and the setting during adjustment of the abutment proper is reduced to a minimum.
  • the adjustment step is performed simply by determining the position of the adjustment wheel 22 by means of the actuator 24, the stored position of which allows constant positioning precision at each printing cycle as regards printing plate and material thickness, allowing to prepare "programs" that facilitate machine setup.
  • discontinuous printing is also simplified, since it is sufficient to use the actuator 24 to "disconnect" the printing plate cylinder 16 from the impression roller 14 to then return it into contact once the film 4 has traveled for the desired extent.
  • the film 4 which is made of a fine and extensible material, is highly sensitive to high temperatures and therefore, once it has exited from the printing assembly 5, the drying of the inks, be they water-based or solvent-based, must occur by adding to its surface large volumes of air at high speed, and such air, once used, must be aspirated immediately in order to avoid harmful emissions, caused by the process of fixing the inks, into the surrounding environment.
  • the drying assembly 6 comprises a drying tunnel 25 through which the film 4 that exits from the printing assembly 5 and has, on the printed side of the film 4, two coaxial hoods 26 and 27, of which one is a blower hood and one is a suction hood, which are adapted respectively to dry by means of forced air, for example heated at low temperatures by a set of resistance heaters upstream of the fan, the printed side and to aspirate the air blown by the blower hood 26.
  • the blower hood 26 has a transverse cross-section that progressively converges along the direction of the forced air and has, on the side directed toward the film 4, a plurality of nozzles 28 that are distributed uniformly along a movable mat 29 arranged inside the drying tunnel 25 and are, for example, nine in number and have an air output cross-section equal to 3 millimeters.
  • the movable mat 29 is adapted to support tangentially the film 4 on the opposite side with respect to the one subjected to drying, so as to offer it a mechanical abutment so as to prevent the formation of bubbles or sails caused by the action of the coaxial hoods 26 and 27.
  • the movable mat 29 can be provided by a closed-loop belt of the motorized type, which is made of rubber and is synchronized with the other components of the flexographic machine 1, so as to have a tangential speed that is substantially identical to the tangential speed of the film 4 and prevent friction between the latter and the movable mat 29, with consequent deformation of the film 4, excessive heating thereof or accumulation of electrostatic charges.
  • the movable mat 29 has, at the region of contact with the film 4, a cambered curvilinear shape, so as to avoid sideways oscillations of such film 4.
  • the shape of the movable mat 29 significantly simplifies the operation of passing the film 4 between actual printing and the spooling assembly 7, since it is sufficient to fix with adhesive tape the film 4 on the side of the movable mat 29 and, by actuating it by means of a jogging system, recover it at the exit of the tunnel on the opposite side.
  • each additional drying unit 30 which is arranged directly after each printing subassembly 15 and comprises an individual blower adapted to dry the freshly printed color.
  • impression roller 14 that acts as a supporting element for the film 4 during this additional drying which, according to the layout, occurs before the drying provided in the drying tunnel 25.
  • the film 4 in output from the drying assembly 6 transition occurs to the spooling assembly 7, where, by means of a rubber-covered presser roller 31, the film 4 is fixed on a spooling cylinder 32 that is intended to make contact with a core 9 taken from the loading station 8, which, in the proposed embodiment, consists of an inclined plane 33 on which the cores 9 are arranged.
  • the presser roller 31 is of the passive type, is arranged in front of the spooling cylinder 32 with respect to the advancement direction of the film 4 and is provided with movement means 34, which consist for example of a pneumatic actuator, for movement away from the spooling cylinder 32 and towards up to contact with said spooling cylinder 32 so as to allow the selective positioning of the film 4 on one of the two sides of the presser roller 31 and allow the winding of the roll 11 of printed film 4 selectively clockwise or counterclockwise.
  • movement means 34 consist for example of a pneumatic actuator
  • the spooling assembly 7 comprises an oscillating arm 35, which can move between a position for picking up the core 9, in output from the pickup station 8, onto which the film 4 is to be wound and a spooling position in order to obtain the roll 11 by passing through a position for unloading it.
  • the oscillating arm 35 supports rotatably a core supporting spindle 36, which can be arranged, in the spooling position, against the spooling cylinder 32 that supports the film 4 in output from the drying assembly 6.
  • the spooling cylinder 32 is of the active type and the core supporting spindle 36 is of the passive type; constant tension of the film 4 is ensured in this manner.
  • the spooling assembly 7 is provided with means for the temporary adhesion of the film 4 to the core 9, which comprise at least one single-polarity electrostatic charge generator bar or, as an alternative, the adhesion of the film 4 to the core 9 can be obtained by using specific adhesives.
  • the spooling assembly 7 is provided with cutting means 37, which consist for example of an oscillating arm provided with a tungsten wire that is heated by means of electric current and acts proximate to the spooling cylinder 32 to cut the film 4 once spooling has been performed.
  • cutting means 37 consist for example of an oscillating arm provided with a tungsten wire that is heated by means of electric current and acts proximate to the spooling cylinder 32 to cut the film 4 once spooling has been performed.
  • a movable cradle 38 which can be raised, for example by means of a pneumatic cylinder that is guided on carriages, to pick up the roll 11 of printed film 4 and can be rotated for its evacuation onto an unloading surface 39.
  • the film 4 passes through the flexographic machine 1 by means of the use of a plurality of guiding rollers 13, which are of the passive type with low inertia and low friction, differently from the printing plate cylinders 16, from the inking rollers 17, from the impression roller 14, from the movable mat 29, and from the spooling cylinder 32, which are of the motorized type and are electrically mutually connected for a synchronized adjustment of the respective rotation rates.
  • the film 4 is entrained through the individual assemblies cited above, thus extending from the unwinding assembly 2 to the spooling assembly 7, in order to be able to have a precise control of the tension of the film 4 over its entire path inside the flexographic machine 1, so as to be able to vary constantly the tension conditions thereof and obviate simply and rapidly the problems induced by the quality of the material used in the flexographic machine 1.
  • the first step consists in loading the core 9 on the core supporting spindle 36 in order to begin actual spooling.
  • the film 4 is arranged so as to adhere to the spooling cylinder 32 and is "attracted", as mentioned, onto the cardboard core 9 that is supported by the core supporting spindle 36 either due to the effect of an electrostatic charge (in the case of an electrostatic charger) or by means of a specific adhesive.
  • the spooling cylinder 32 begins its rotation and the film 4 is wound onto the core 9 clockwise or counterclockwise depending on the side of the presser roller 31 on which the operator has placed the film 4.
  • spooling occurs by means of the spooling cylinder 32, which is of the active type, while both the core supporting spindle 36 and the presser roller 31 are of the passive type and are entrained by friction by the spooling cylinder 32.
  • the spooling cylinder 32 in order to be able to allow the winding of the film 4 in both directions, depending on whether one wishes spooling with the printed part outward or toward the inside of the roll 11, the spooling cylinder 32 must be able to rotate equally clockwise or counterclockwise. Tension of the film is ensured, in this step, by control of the rotation rate of the motor with respect to the speed of the incoming film.
  • the cylinder stops (with a descending ramp that is determined by control and can in any case be configured by the user) and the movable cradle 38 moves to the position for unloading the roll 11, i.e., below it, depending on where it is arranged.
  • the movable cradle 38 moves to the position for unloading the roll 11, i.e., below it, depending on where it is arranged.
  • the diameter of the roll 11 varies, so does the position thereof.
  • the movable cradle 38 then rises to pick up the roll 11.
  • the flexographic machine 1 is capable of spooling all diameters until it equals the diameter of the initial spool 3.
  • the movable cradle 3 8 can translate vertically, reaching the roll 11, the height of which depends on its diameter.
  • This function is necessary both to create the space sufficient for the movement of the cutting means 37, which act proximate to the spooling cylinder 32 to cut the film 4, and to "accommodate" the rewound roll 11 in output without making it fall from above, obviating a possibility that would lead to damage of the edge of the spooled material.
  • the movable cradle 38 once it has reached the unloading position, receives the rewound roll 11, which falls onto it due to the opening of the core supporting spindle 36, which is provided with an extractor to release the core 9.
  • the oscillating arm 35 at this point is unloaded and moves toward the loading of the new core 9 and at the same time the movable cradle 3 8 moves downward, carrying along the freshly spooled roll 11.
  • the oscillating arm 35 moves the new core 9 toward the spooling cylinder 32 and, as soon as it has reached this position, the cutting means 37 rotate to cut the film 4.
  • An electrostatic bar powered by an external charger, which loads the trailing end of the cut film 4, facilitating its adhesion to the cardboard core 9, can be provided integrally with the support of the hot wire, as already mentioned.
  • the movable cradle 38 rotates to unload the roll 11 onto the unloading surface 39, which, by being slightly inclined, allows the evacuation of the roll 11 by rolling due to gravity.
  • the process for loading the film 4, for spooling, cutting and unloading the role 11, occurs in a fully automatic manner both if clockwise spooling and if counterclockwise spooling is provided, since the process is determined only by the direction of rotation of the spooling cylinder 32 and by the initial arrangement of the film 4 on the spooling cylinder 32.
  • the flexographic machine with increased functionality, particularly for printing fine and extensible material achieves fully the intended aim and objects, since it allows to provide, print and wind a film of fine and extensible material rapidly, reliably, efficiently and in a fully automated manner, obviating the drawbacks of flexographic machines of the traditional type.
  • the materials used may be any according to requirements and to the state of the art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
EP16176466.7A 2015-06-30 2016-06-27 Flexodruckmaschine mit erhöhter funktionalität, insbesondere zum bedrucken von feinem und streckbarem material Active EP3112156B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB20151805 2015-06-30

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EP3112156A1 true EP3112156A1 (de) 2017-01-04
EP3112156B1 EP3112156B1 (de) 2018-05-02

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BR (1) BR102016015288A8 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019166129A1 (de) 2018-02-27 2019-09-06 Bobst Bielefeld Gmbh Trockner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110588199B (zh) * 2019-09-25 2021-09-28 扬州万木春纸制品有限公司 一种纸类产品生产用双面印刷工艺

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GB1164814A (en) * 1966-03-16 1969-09-24 Strachan & Henshaw Ltd Means for and Methods Of Control of Webs During Processing
DE4104082A1 (de) * 1991-02-11 1992-08-13 Stahlkontor Maschinenbau Vorrichtung zum wahlweisen umschlingen von wickelhuelsen in der einen oder anderen umschlingungsdrehrichtung durch eine warenbahn bei mehrfach-wickelwendemaschinen
DE20115325U1 (de) * 2001-04-05 2002-01-31 Reifenhäuser GmbH & Co Maschinenfabrik, 53844 Troisdorf Wickeleinrichtung zur Durchführung eines Wickelwellenwechsels in einer Wickeleinrichtung
DE10059622A1 (de) * 2000-10-31 2002-05-16 Windmoeller & Hoelscher Bahnwickelverfahren, Bahntrennvorrichtung und Bahnwickler
US20050257704A1 (en) * 2004-05-21 2005-11-24 Pas Jon V Method for lateral adjustment of a directly driven load without shifting the entire drive assembly
US20100264248A1 (en) * 2009-04-17 2010-10-21 C.G. Bretting Manufacturing Co., Inc. Automated Unwind System with Auto-Splice

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1164814A (en) * 1966-03-16 1969-09-24 Strachan & Henshaw Ltd Means for and Methods Of Control of Webs During Processing
DE4104082A1 (de) * 1991-02-11 1992-08-13 Stahlkontor Maschinenbau Vorrichtung zum wahlweisen umschlingen von wickelhuelsen in der einen oder anderen umschlingungsdrehrichtung durch eine warenbahn bei mehrfach-wickelwendemaschinen
DE10059622A1 (de) * 2000-10-31 2002-05-16 Windmoeller & Hoelscher Bahnwickelverfahren, Bahntrennvorrichtung und Bahnwickler
DE20115325U1 (de) * 2001-04-05 2002-01-31 Reifenhäuser GmbH & Co Maschinenfabrik, 53844 Troisdorf Wickeleinrichtung zur Durchführung eines Wickelwellenwechsels in einer Wickeleinrichtung
US20050257704A1 (en) * 2004-05-21 2005-11-24 Pas Jon V Method for lateral adjustment of a directly driven load without shifting the entire drive assembly
US20100264248A1 (en) * 2009-04-17 2010-10-21 C.G. Bretting Manufacturing Co., Inc. Automated Unwind System with Auto-Splice

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019166129A1 (de) 2018-02-27 2019-09-06 Bobst Bielefeld Gmbh Trockner
US11559980B2 (en) 2018-02-27 2023-01-24 Bobst Bielefeld Gmbh Dryer

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