EP3222421A1 - Enrouleur avec stockage d'une charge électrique d'un matériau en bande - Google Patents

Enrouleur avec stockage d'une charge électrique d'un matériau en bande Download PDF

Info

Publication number
EP3222421A1
EP3222421A1 EP17153282.3A EP17153282A EP3222421A1 EP 3222421 A1 EP3222421 A1 EP 3222421A1 EP 17153282 A EP17153282 A EP 17153282A EP 3222421 A1 EP3222421 A1 EP 3222421A1
Authority
EP
European Patent Office
Prior art keywords
take
roll
web material
high voltage
electrical charge
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
EP17153282.3A
Other languages
German (de)
English (en)
Other versions
EP3222421B1 (fr
Inventor
Christa Dettke
Christoph Dettke
Hubertus Dettke
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PL17153282T priority Critical patent/PL3222421T3/pl
Publication of EP3222421A1 publication Critical patent/EP3222421A1/fr
Application granted granted Critical
Publication of EP3222421B1 publication Critical patent/EP3222421B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • 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
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/70—Depositing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/513—Modifying electric properties
    • B65H2301/5133—Removing electrostatic charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/186—Rollers composed of several layers with electro-conductive layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a take-up device for winding up a substantially electrically insulating web material.
  • Winding devices for winding web material are used in particular in rotary printing presses to wind web-shaped printing material on a roll.
  • printing cylinders also called “printing form cylinders”
  • impression cylinders also called “impression rollers”
  • roller and sheet-fed presses depending on whether a web-shaped or sheet-shaped substrate is being processed.
  • the web-shaped substrate is pulled off a supply roll and, after printing, either wound onto a take-up roll or cut by a punch into web sections or blanks, and the web sections or blanks are stacked.
  • the wound, web-shaped substrate is optionally later cut into sections or blanks.
  • the impression cylinder picks up ink from a paint pan in cells on its surface. The excess is scraped off. The ink is transferred to the substrate passing through the printing cylinder and impression cylinder.
  • Electrostatic printing aids improve the ink transfer from the printing cylinder to the substrate and thus increase the print quality.
  • an electric field is generated in the region of the printing gap between the printing cylinder and impression cylinder, which exerts a force on the ink in the cells of the printing cylinder, which intensifies the transition of the ink to the printing material and increases the print quality.
  • the printing cylinder is made of an electrically conductive material (e.g., a metal) to ground.
  • the impression cylinder or impression roller has on the circumference a (semi-) conductive layer to which a high voltage is transmitted, which generally has a negative polarity.
  • the layer on the circumference is mostly semi-conductive to minimize electrical currents and to avoid the generation of sparks which, when working with solvent paints, could cause ignition or explosion.
  • when working with watercolors can also be worked with a higher conductive or highly conductive layer on the circumference of the impression.
  • a semiconducting layer is understood as meaning a layer with a high electrical resistance, which greatly reduces the electric current but still allows a certain electrical current to pass through.
  • the electrical resistance of the layer is measured, for example, with a measuring device having two parallel forks, each holding a leather strip moistened with tap water (city water) about 8 cm long and about 1 cm wide, so that the two parallel leather strips are about 10 cm distance from each other.
  • the two parallel strips of leather are wrapped around the outside of the layer over a length of 8 cm.
  • a measuring voltage of 1,000 volts is applied.
  • resistances in the range from about 1 M ⁇ to 20 M ⁇ are measured for semiconducting layers which are particularly suitable for the present purpose. For higher-conducting layers, the resistances measured with this measuring arrangement are significantly lower and for highly conductive layers they are still much lower.
  • charging electrodes are used, which are directed onto the circumference of the impression roller and deliver the charge to the (semi-) conductive layer on the circumference of the impression roller, which sits on an insulating layer (so-called "top-loading").
  • the resistance is the insulating layer preferably chosen so that it allows a slow discharge of the impression after switching off the printing press.
  • Particularly suitable insulating layers have a resistance in the range of about one to two gigaohms, as measured by a device of the type discussed above, with only a strip of leather wrapped around the outside of the layer and the resistance between the leather strips and machine ground measured.
  • Other charging electrodes are directed to at least one end face of the impression roller and discharge the charge to a conductive layer below a (semi) conductive layer which is exposed at an end face of the impression roller (so-called “side charging”). Furthermore, arranged on the front side charging electrodes are known, which cooperate with a conductive board on the front side of the impression roller, which is electrically connected to a (highly) conductive layer. The (highly) conductive layer below the (semi) conductive layer ensures a uniform distribution of the charge over the length of the impression roller.
  • a "direct charging” takes place, for example, via wiper contacts or brushes on the circumference or an end face of the impression roller or via electrically conductive rolling bearings which support a shaft of the impression roller or via which the impression roller is mounted on an axle, or via a fluid transmission system according to FIG EP 1 780 011 B1 ,
  • the impression roller here consists of a metallic, electrically conductive material (eg steel) with a semiconductive layer on the circumference.
  • the (semi-) conductive layer on the circumference of the impression roller is made, for example, of rubber or polyurethane with embedded electrically conductive particles (eg graphite).
  • a (High) conductive layer can also be made of rubber or polyurethane with a correspondingly higher proportion of electrically conductive particles. This can also be a metallic layer.
  • An insulating layer is also produced, for example, from rubber or polyurethane, but with a correspondingly small number of electrically conductive particles or without electrically conductive particles.
  • the sleeve sleeve (usually made of GFRP) can also be the insulating layer.
  • Rotary printing machines usually have several successively arranged printing units in order to apply different colors to the substrate.
  • the disadvantage is that the substrate can assume very high charges due to the electrostatic charge by electrostatic printing aids that affect subsequent processing. For example, when transporting or cutting a roll comprising the printed substrate, flashovers can occur which endanger print shop workers. The charges are stored similarly in the roll, as in a wound capacitor. If the sheet-like substrate is cut and when working with sheets, it may be due to the high loads problems when stacking the blanks or sheets and removing individual blanks or sheets from the stacks as well as flashovers that endanger printmakers. This is observed when using paper as a substrate and reinforced when using plastic film and composites comprising, for example, plastic, paper and aluminum foils.
  • EP 1 914 071 A describes a rotary printing press with several, in the direction of passage of the printing material successively arranged printing units, each having a printing cylinder and an associated electrostatic printing aid, wherein the electrostatic printing assistance at least two printing units have different polarities. Characterized in that at least one electrostatic printing aid with negative and at least one electrostatic printing aid with positive Polarity is present, an excessive charge of the substrate is counteracted and unwanted discharges of the printed substrate and threats to the printing workers are avoided.
  • Unwanted loading of rolls of electrically substantially insulating web material can also occur in roll cutters in which films are unwound from parent rolls, cut and wound onto daughter rolls. This can also occur when winding films in film extrusion machines and laminating machines.
  • the object of the invention is to provide a take-up device which reduces unwanted charges of the web material even further.
  • the take-up device according to the invention for an electrically substantially insulating web material comprises a take-up roll on which the web material can be wound, characterized in that there is a device for transferring electrical charge to the web material on the take-up roll and / or deflecting onto the take-up roll and the device for transmitting electrical charge to the sheet material is connected to at least one electrical high voltage source of positive or negative polarity.
  • An electrically substantially insulating web material is, for example, a plastic film or a composite film which contains a plastic.
  • the composite film contains the plastic, for example in the form of a plastic film or in the form of an extruded layer or in the form of applied plastic particles. additionally
  • the composite film comprises a metal foil or a paper web or a board web or another plastic film.
  • the composite film may comprise any of the aforementioned components in combination.
  • the web material is a printing substrate.
  • the invention is based on the finding that charging of the roll from the web material can best be avoided or minimized if the charging of the web material by supplying charge of opposite polarity by means of a device for transferring electrical charge to the web material on the take-up roll and / / or compensated for deflection on the take-up roll, so that the web material is almost or completely discharged.
  • a device for transferring electrical charge to the web material on the take-up roll and / / or compensated for deflection on the take-up roll so that the web material is almost or completely discharged.
  • the means for transmitting electrical charge is connected to a high voltage electrical source of positive polarity.
  • a high voltage electrical source of negative polarity is connected to the means for transferring electrical charge to the web material.
  • the deflection of the web material onto the take-up roll is effected by a pressure roll, which rolls on the circumference of the take-up roll and over which the web material is deflected onto the take-up roll.
  • the deflection takes place by a deflection roller, which is arranged at a distance from the take-up roll parallel to this and over which the web material is directed onto the take-up roll and / or on the pressure roller.
  • the means for transferring electrical charge to the web material in the take-up device can be implemented in various ways.
  • the means for transferring electrical charge to the web material comprises a pressure roller, which abuts the web material on the circumference of the take-up roll to unwind in opposite directions to the take-up roll, wherein the pressure roller has an electrically (semi-) conductive layer on the periphery , means for transferring electrical charge to the electrically (semi-) conductive layer of the pressure roller and the means for transferring electrical charge to the (semi-) conductive layer is connected to the electrical high voltage source.
  • a pressure roller for applying the electric charge is used on the web material on the take-up roll.
  • This may be an existing for the tight winding of the web material on the take-up reel already present. Furthermore, this may be a separate pressure roller, which serves to supply the electrical charge to the web material and is positioned at a location on the circumference of the take-up roll on which the web material already fits tightly against the take-up roll, for which a further pressure roll may be present.
  • the pressure roller is designed like a pressure roller with a (semi-) conductive layer on the circumference.
  • the statements on impression rollers at the beginning of this description apply accordingly to the pressure roller of the take-up.
  • the known devices for transferring electrical charge to impression rollers can also be used for the transfer of electrical charge to the pressure roller. Accordingly, the comments apply at the beginning of this description of the transfer of electrical charge to the outer layer of the impression roller by a top-loading system, a side charging system or a core charging system corresponding to the charging of the pressure roller.
  • the means for transferring electrical charge to the sheet material is a charging electrode, which is directed onto the web material on the circumference of the take-up roll and / or deflecting onto the take-up roll, as in the case of the "top loading" described above.
  • the means for transferring electrical charge to the web material is a direct charging device having at least one on the web material on the take-up roll and / or deflecting on the take-up roll, electrically conductive brush or flexible, electrically (semi-) conductive tabs, the is connected to the electrical high voltage source. This transfer of electrical charge takes place as in the known direct charging on the circumference of a impression.
  • the pressure roller or the charging electrode or the direct charging device is held on a displaceable holding device, which is adapted to displace the pressure roller or needle electrode or direct charging in the radial direction to the take-up roll, so that the distance of the pressure roller or the charging electrode or the direct charging for Pressure roller remains constant regardless of the diameter of the wound web material. This promotes uniform unloading of the web material on the take-up roll.
  • the holding device is preferably present in a device for transmitting electrical charge to the web material by means of a pressure roller.
  • the variable circumference of the take-up roll can be compensated by a pressure roller having an elastic layer at least on the circumference.
  • the charge is via a charging electrode or a direct charging device is supplied to the web material on the take-up reel, can be dispensed with a displaceable holding device.
  • the varying circumference of the take-up roll may eventually be compensated by a variable voltage on the charging electrode or the flexibility of the brushes, cloths or other direct charging device.
  • the means for transmitting electrical charge is a deflection roller, via which the web material is supplied to the winding roller, the deflection roller has an electrically (semi-) conductive layer on the periphery, is a device for transmitting electrical charge to the electrically (semi -) conductive layer of the deflection roller present and the means for transmitting electrical charge to the (semi) conductive layer of the deflection roller connected to the high voltage source.
  • the deflection roller may be formed as a described at the beginning of the description of the impression roller.
  • the means for transferring electrical charge to the (semi-) conductive layer of the diverting pulley may be configured as a top-loading system, side-loading system or core-loading system for a compression roller described at the beginning of the description.
  • the take-up device has a deflection roller, which is arranged at a distance from the take-up roll with its axis of rotation parallel axis of rotation so, the web material is deflected over the deflection roller to the pressure roller and pressed by the pressure roller against the circumference of the take-up roll.
  • a particularly large part of the circumference of the pressure roller is looped around by the web material.
  • the electrical charge is applied to compensate for the charge of the web material via the nip roll. But it can also be applied over the pulley. Due to the large wrap, the application of the compensating charge is particularly effective.
  • the device for transmitting electrical charge to the web material is connected via a switching device with a high voltage source of positive polarity and a high voltage source of negative polarity.
  • compensating charge of positive polarity or negative polarity may be supplied depending on the charging of the web material.
  • the switching means comprises means for delayed switching, so that when switching from a high voltage source of one priority to a high voltage source of the other polarity no voltages of unequal polarity simultaneously applied to the means for transmitting electrical charge to the web material.
  • the high-voltage source supplies an adjustable high voltage to the device for transmitting electrical charge to the web material.
  • the height of the high voltage can be adjusted to better neutralize the charge of the web material.
  • At least one field strength measuring device is provided, through the detection region of which the web material is displaced on the take-up roll and / or deflected onto the take-up roll, wherein the field strength measuring device determines the charge having the web material which is connected to at least one control device. which is connected to the high-voltage source and / or the switching device in order to apply a high voltage of a certain height and / or polarity depending on the charging of the web material measured by the field strength measuring device to the device for transferring electrical charge to the web material.
  • the height and / or the polarity of the high voltage for compensating the charging of the web material are automatically adjusted.
  • the controller is adapted to apply to the electrical charge transfer device a high voltage having a magnitude and / or polarity that causes minimal charging of the web material wound on the take-up roll.
  • the device for transmitting electrical charge is a deflection roller or a pressure roller (pressure roller).
  • a field strength measuring device is arranged on the circumference or at least one end face of the take-up roll.
  • the winding device is an exchangeable winding roll device.
  • an exchange reel device there are two take-up positions in which the web material is alternately wound on a take-up reel.
  • An alternate roll device is designed so that upon complete winding of a take-up roll, the subsequent web material is cut and wound on the other take-up roll.
  • the finished wound take-up roll is pivoted out of the winding position and removed from the take-up device and wound a newly wound take-up reel in the winding position.
  • the take-up device is part of a rotary printing machine or a web-fed printing machine. According to another embodiment, it is a gravure printing machine, flexographic printing press, offset printing press, high-pressure machine, planographic printing machine or screen printing machine.
  • the take-up device is part of a slitter-winder.
  • the take-up device is part of a film extrusion machine.
  • the take-up device is part of a laminating machine.
  • winding device according to the invention can be used in other areas of use, in which web material made of electrically substantially insulating material is wound up into a roll.
  • FIGS. 1 to 3 are embodiments of rotary printing machines with electrostatic printing aids, which can be supplemented by the winding device according to the invention.
  • the Fig. 1 to 3 do not describe the invention, but serve only for a better understanding of the technical background of the invention.
  • Fig. 1 has a rotary printing machine four successively arranged printing units 1.1 to 1.4.
  • Each printing unit 1.1 to 1.4 has a metallic, electrically conductive printing cylinder 2.1 to 2.4, which rests on electrically conductive bearings to ground.
  • each printing unit 1.1 to 1.4 has an electrostatic printing aid 3.1 to 3.4.
  • Each electrostatic printing aid 3.1 to 3.4 has a impression roller 4.1 to 4.4, which is an impression cylinder, which rolls on the printing cylinder 2.1 to 2.4. Furthermore, each electrostatic printing aid 3.1 to 3.4 has a high voltage source of positive polarity 5.1 to 5.4 and a high voltage source of negative polarity 6.1 to 6.4. The high voltage of each high voltage source 5.1 to 5.4 and 6.1 to 6.4 is preferably adjustable.
  • Each printing unit 1.1 to 1.4 comprises a switching device 7.1 to 7.4, wherein each switching device 7.1 to 7.4 is connected to a high voltage source of positive polarity 5.1 to 5.4 and a high voltage source negative polarity 6.1 to 6.4.
  • Each switching device 7.1 to 7.4 is connected via a device for transmitting electrical charge 8.1 to 8.4 with a (semi) conductive layer of the impression 4.1 to 4.4 the same printing unit 1.1 to 1.4.
  • Each impression roller 4.1 to 4.4 together with the device for transmitting an electrical charge 8.1 to 8.4, a device for generating an electric field 9.1 to 9.4 im Printing gap 10.1 to 10.4 between impression cylinder 2.1 to 2.4 and impression roller 4.1 to 4.4.
  • deflecting and / or compensating rollers 13.1 to 13.4 and 14.1 to 14.4 are present between the printing units 1.1 to 1.4, via which the printing material 12 is carried away. Behind the printing units 1.1 to 1.4, the printing material 12 is guided onto a take-up reel 15.
  • a field strength sensor 16 is arranged next to the printing material 12 immediately before emergence onto the take-up reel 15.
  • each printing unit which is assigned to the printing material 12 on a deflection roller 14.1 to 14.4.
  • Each printing unit 1.1 to 1.4 has a control device 18.1 to 18.4 for controlling the electrostatic printing aid 3.1 to 3.4.
  • the control devices 1.1 to 1.4 are interconnected via a data bus 19.
  • control devices 18.1 to 18.4 are connected via the data bus 19 to a main controller 18.5.
  • the field strength sensor 16 is connected via the data bus 19 to the control devices 18.1 to 18.5.
  • Each further field strength sensor 17.1 to 17.4 is connected to the control device 18.1 to 18.4 of the same printing unit 1.1 to 1.4 and / or to the data bus 19.
  • the printing substrate 12 is unwound from the unwinding roll 11, passed through the printing units 1.1 to 1.4 and wound onto the take-up reel 15. In the printing units 1.1 to 1.4 it is printed with different colors.
  • the switching devices 7.1 to 7.4 are controlled by the control devices 18.1 to 18.4 so that a high voltage of positive polarity is applied to the printing unit 1.4 used last in the direction of passage.
  • the polarities of the upstream in the feed direction used printing units 1.1 to 1.3 supplied high voltages are set by the controllers 18.1 to 18.4 so that the field strength sensor 16 measures a minimum charge of the printing material 12 before the take-up roll 15.
  • the printing units 1.1 and 1.3 high voltages negative and the printing unit 1.2 a high voltage positive polarity supplied.
  • the device for transferring electrical charge 8.1 to 8.4 to the (semi-) conductive layer of the impression roller 4.1 to 4.4 may be designed differently. All embodiments have a impression roller 4.1 to 4.4 with a metallic core 20.
  • the core has a rotating shaft 21 which is mounted in roller bearings 22.1, 22.2.
  • the bearings 22.1, 22.2 grounded.
  • the bearings 22.1, 22.2 separated by insulation from ground.
  • the metallic core 20 is mounted on a fixed axle 24 via roller bearings 22.1, 22.2.
  • the axis 24 is held in insulating elements 23.1, 23.2 and insulated from ground.
  • insulating layer 25 is arranged outside of the outer periphery of the metallic core 20, an insulating layer 25 is arranged. Outside on the insulating layer 25 sits directly a (semi) conductive layer 26 of the impression 4.1 to 4.4.
  • Fig. 2a the electric charge is fed via a needle electrode 28 from the outside of the layer 26 of the impression roller 4.1 to 4.4 (Top Loading).
  • the insulating layer 25 prevents the charge from draining to ground.
  • the charge is fed via the one charging electrode 29 to an end face of the impression roller 4.1 to 4.4 of the electrically highly conductive layer 27 (side loading) and distributed uniformly inwardly over the layer 26. Again, the insulating layer 25 prevents flow to the ground.
  • the high voltage is supplied via the shaft 21 (Core Charge Loading), for example by means of a fluid transmission system 30 according to FIG EP 1 780 011 B1 or by brushing.
  • the charge is uniformly distributed to the inside of the layer 26 via the metallic core 20.
  • the insulating elements 23.1, 23.2 prevent leakage to the ground.
  • Fig. 2d the charge is fed via the fixed axle 24 and the roller bearings 22.1, 22.2 to the metallic core 20 (core charge loading).
  • the charge is distributed evenly over the outer circumference of the layer 26.
  • the insulating elements 23.1, 23.2 prevent also here an outflow of the charge to the mass.
  • the charge of the layer 26 is again supplied via a needle electrode 28 (Top Loading).
  • the insulating prevent 23.1, 23.2 outflow to the ground.
  • the charge is in turn fed via a charging electrode 29 at one end face of the highly conductive layer 27 (side loading).
  • Fig. 1 are the impression rollers 4.1 to 4.4 and the device for transferring the electrical charge 8.1 to 8.4 as in Fig. 2c or d educated.
  • the rotary printing machine of Fig. 3 is different from that of Fig. 1 in that the impression rollers 4.1 to 4.4 and the means for transmitting the electric charge 8.1 to 8.4 as in Fig. 2a or 2e are formed.
  • a take-up device has a deflection roller 30, via which the web material (printing material) 12 is deflected to form a pressure roller 31. Via the pressure roller 31, the web material 12 is fed to a take-up roll 15.
  • the pressure roller 31 has an insulating layer 32 on the periphery and a (semi) conductive layer 33 on the circumference of the insulating layer 32.
  • the pressure roller 31 is corresponding to the impression roller of Fig. 2a built up.
  • a charging electrode 28, which is formed, for example, as a needle electrode is arranged at a distance from the pressure roller 31 parallel to the axis of rotation thereof.
  • the charging electrode 28 is connected to a positive and a negative high voltage generator via an electric wire and a switching device.
  • the web material 12 of the take-up roller 15 is supplied.
  • the pressure roller 31 presses the web material 12 against the take-up roll 15.
  • the (semi-) conductive layer 33 of the pressure roller 31 is charged by the charging electrode 28 in such a way that existing charges on the web material 12 are compensated or the web material 12 is discharged. Consequently, the web material 12 on the take-up roll 15 without unwanted charges wound up.
  • Fig. 5 differs from that described above in that the pressure roller 31 has an electrically conductive core 34 and a (semi) conductive layer 33 on the periphery. Electric charge is supplied to the core 34 via a core charging system. As a result of this measure, charges on the web material 12 are likewise compensated or unloaded and the result is that the web material on the take-up reel 15 contains no unwanted charges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
EP17153282.3A 2016-03-23 2017-01-26 Enrouleur avec stockage d'une charge électrique d'un matériau en bande Active EP3222421B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17153282T PL3222421T3 (pl) 2016-03-23 2017-01-26 Urządzenie nawijające z ładowaniem elektrycznym materiału wstęgowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016101601.0U DE202016101601U1 (de) 2016-03-23 2016-03-23 Aufwickelvorrichtung zum Aufwickeln eines im Wesentlichen isolierenden Bahnmaterials

Publications (2)

Publication Number Publication Date
EP3222421A1 true EP3222421A1 (fr) 2017-09-27
EP3222421B1 EP3222421B1 (fr) 2021-12-15

Family

ID=57906549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17153282.3A Active EP3222421B1 (fr) 2016-03-23 2017-01-26 Enrouleur avec stockage d'une charge électrique d'un matériau en bande

Country Status (6)

Country Link
US (1) US10745230B2 (fr)
EP (1) EP3222421B1 (fr)
DE (1) DE202016101601U1 (fr)
ES (1) ES2906731T3 (fr)
PL (1) PL3222421T3 (fr)
PT (1) PT3222421T (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018101356U1 (de) 2018-03-09 2019-06-12 Christa Dettke Wendewickelmaschine mit elektrostatischer Fixierung des Bahnanfanges
DE202018102961U1 (de) 2018-05-28 2019-08-30 Christa Dettke Vorrichtung zum Entladen von Kunststofffolienbahnen oder anderen im Wesentlichen isolierenden Bahnmaterialien

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11858260B2 (en) * 2018-04-26 2024-01-02 Hewlett-Packard Development Company, L.P. Media management using a media management device
IT201900007046A1 (it) * 2019-05-21 2020-11-21 Ace Di Barbui Davide & Figli Srl Gruppo di stampa per stampa a rotocalco ad elevata sicurezza di esercizio

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE200935C (fr) *
US2445271A (en) * 1945-03-17 1948-07-13 William C Huebner Static eliminating means
US3503526A (en) * 1967-07-27 1970-03-31 Du Pont Web handling apparatus and process
CH584999A5 (en) * 1974-11-08 1977-02-15 Oerlikon Buehrle Ag Electrostatic charge neutraliser for coil winding machine - has earthed conducting rollers touching wire and attached to pivoted arms
US5205212A (en) * 1989-03-17 1993-04-27 Wolfe Gene H Method of reducing ink electrets in gravure web printing
EP1247773A2 (fr) * 2001-04-05 2002-10-09 Reifenhäuser GmbH & Co. Maschinenfabrik Dispositif pour enrouler et méthode pour changer un rouleau dans une enrouleuse
EP1914071A2 (fr) 2006-10-19 2008-04-23 Hubertus Dettke Presse rotative
EP1780011B1 (fr) 2005-10-25 2012-06-13 Christa Dettke Rouleau d'impression
DE102011007136A1 (de) * 2011-04-11 2012-10-11 Hildebrand Technology AG Antistatikvorrichtung und zugehöriges Betriebsverfahren
EP2990365A1 (fr) * 2014-07-04 2016-03-02 Christa Dettke Machine de traitement d'un materiau en bande

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402035A (en) * 1980-09-02 1983-08-30 Polaroid Corporation Low voltage electrostatic charge regulating apparatus
WO2007090274A1 (fr) * 2006-02-08 2007-08-16 Prittie Allan R Machine d'inspection et de reparation de bande dotee d'une zone d'inspection escamotable
EP1975101B1 (fr) * 2007-03-28 2012-05-16 Heidelberger Druckmaschinen Aktiengesellschaft Enroulement d'une bande de feuille transfert

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE200935C (fr) *
US2445271A (en) * 1945-03-17 1948-07-13 William C Huebner Static eliminating means
US3503526A (en) * 1967-07-27 1970-03-31 Du Pont Web handling apparatus and process
CH584999A5 (en) * 1974-11-08 1977-02-15 Oerlikon Buehrle Ag Electrostatic charge neutraliser for coil winding machine - has earthed conducting rollers touching wire and attached to pivoted arms
US5205212A (en) * 1989-03-17 1993-04-27 Wolfe Gene H Method of reducing ink electrets in gravure web printing
EP1247773A2 (fr) * 2001-04-05 2002-10-09 Reifenhäuser GmbH & Co. Maschinenfabrik Dispositif pour enrouler et méthode pour changer un rouleau dans une enrouleuse
EP1780011B1 (fr) 2005-10-25 2012-06-13 Christa Dettke Rouleau d'impression
EP1914071A2 (fr) 2006-10-19 2008-04-23 Hubertus Dettke Presse rotative
DE102011007136A1 (de) * 2011-04-11 2012-10-11 Hildebrand Technology AG Antistatikvorrichtung und zugehöriges Betriebsverfahren
EP2990365A1 (fr) * 2014-07-04 2016-03-02 Christa Dettke Machine de traitement d'un materiau en bande

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018101356U1 (de) 2018-03-09 2019-06-12 Christa Dettke Wendewickelmaschine mit elektrostatischer Fixierung des Bahnanfanges
DE202018102961U1 (de) 2018-05-28 2019-08-30 Christa Dettke Vorrichtung zum Entladen von Kunststofffolienbahnen oder anderen im Wesentlichen isolierenden Bahnmaterialien
EP3575249A1 (fr) 2018-05-28 2019-12-04 Christa Dettke Dispositif de déchargement de bandes en matière plastique ou d'autres bandes de matière sensiblement isolantes

Also Published As

Publication number Publication date
US10745230B2 (en) 2020-08-18
EP3222421B1 (fr) 2021-12-15
ES2906731T3 (es) 2022-04-20
DE202016101601U1 (de) 2017-06-27
PT3222421T (pt) 2022-02-24
PL3222421T3 (pl) 2022-04-11
US20170275115A1 (en) 2017-09-28

Similar Documents

Publication Publication Date Title
EP3222421B1 (fr) Enrouleur avec stockage d'une charge électrique d'un matériau en bande
EP1914071B1 (fr) Presse rotative
WO1994004364A1 (fr) Procede et dispositif d'humidification d'une bande de materiau en mouvement imprimee puis thermiquement sechee
EP4209351B1 (fr) Machine de traitement de feuilles, utilisation de la machine de traitement de feuilles, procédé de transport de feuilles et utilisation d'éléments conducteurs de feuilles contenant des dispositifs de désionisation
EP2990365B1 (fr) Machine de traitement d'un materiau en bande
EP3072689B1 (fr) Presse rotative comprenant des dispositifs destines a reduire le chargement du support d'impression
EP1313617A1 (fr) Procede et dispositif pour le couchage de produits imprimes
EP1807333B1 (fr) Procede et dispositif pour transporter des bandes de materiau et pour les fixer sur un contre-appui
DE19643106A1 (de) Einrichtung zum Fördern von Bogen in einer drucktechnischen Maschine
DE10232255A1 (de) Rotationsdruckmaschine
EP1975101B1 (fr) Enroulement d'une bande de feuille transfert
DE102018108485B4 (de) Wickelmaschine für bahnförmige materialien
DE102010028702B4 (de) Wendeeinrichtung einer Bogendruckmaschine
EP3536643B1 (fr) Machine de bobinage sur tourelle à fixation électrostatique du début de bande
DE102016120383A1 (de) System zur verbesserung der druckqualität einer rotationsdruckmaschine
EP3575249B1 (fr) Dispositif de déchargement de bandes en matière plastique ou d'autres bandes de matière sensiblement isolantes
EP3863855B1 (fr) Dispositif, procédé et machine pour l'impression multiple de feuilles d'impression
DE2709254B2 (de) RoUen-Rotations-Tiefdruckmaschinen mit elektrostatisch unterstützter Druckfarbubertragung auf eine Bahn aus dielektrischem Material
DE102021119893A1 (de) Wickler zum Wickeln einer Materialbahn
DE102020120882A1 (de) Druckmaschine mit Aufladungseinrichtung
EP2098470A1 (fr) Dispositif d'enroulement destiné à enrouler un matériau en forme de bande
DE102010028699A1 (de) Bogenführungseinrichtung
DE102010028701A1 (de) Bogenführungseinrichtung
DE102013211246A1 (de) Druckmaschine mit mehreren gemeinsam einen Bedruckstoff bedruckenden Druckwerken

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180321

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200720

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210706

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017012225

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1455200

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220115

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 3222421

Country of ref document: PT

Date of ref document: 20220224

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20220217

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2906731

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20220420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220315

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20220400455

Country of ref document: GR

Effective date: 20220418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220315

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017012225

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220415

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220126

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

26N No opposition filed

Effective date: 20220916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220126

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20240123

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170126

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20240118

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20240216

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20240118

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211215

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240307

Year of fee payment: 8

Ref country code: CZ

Payment date: 20240118

Year of fee payment: 8

Ref country code: GB

Payment date: 20240124

Year of fee payment: 8

Ref country code: CH

Payment date: 20240201

Year of fee payment: 8

Ref country code: PT

Payment date: 20240116

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20240123

Year of fee payment: 8

Ref country code: PL

Payment date: 20240110

Year of fee payment: 8

Ref country code: IT

Payment date: 20240131

Year of fee payment: 8

Ref country code: FR

Payment date: 20240124

Year of fee payment: 8

Ref country code: BE

Payment date: 20240122

Year of fee payment: 8