EP3931923A1 - Cascade insert for an ionising bar and ionising bar having a cascade insert - Google Patents
Cascade insert for an ionising bar and ionising bar having a cascade insertInfo
- Publication number
- EP3931923A1 EP3931923A1 EP20707611.8A EP20707611A EP3931923A1 EP 3931923 A1 EP3931923 A1 EP 3931923A1 EP 20707611 A EP20707611 A EP 20707611A EP 3931923 A1 EP3931923 A1 EP 3931923A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cascade
- housing
- insert
- circuit
- control electronics
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000004382 potting Methods 0.000 claims abstract description 10
- 230000006854 communication Effects 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 19
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000006386 neutralization reaction Methods 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 6
- 230000007175 bidirectional communication Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims 1
- 230000003472 neutralizing effect Effects 0.000 abstract description 3
- 239000012774 insulation material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
Definitions
- the present invention relates to an ionizing bar for the contact-free neutralization of electrostatic charges and / or for contact-free charging, in particular of insulating materials, and a cascade insert for such an ionizing bar.
- this relates in particular to a rod-shaped ionization electrode which is designed as an active discharge electrode and which is used, for example, to minimize positive and / or negative charges on, in particular, moving material webs.
- the ionization electrode can also be used for targeted charging of material webs.
- the rod-shaped ionization electrode according to these embodiments has a plurality of needle-shaped individual electrodes arranged parallel to one another, which can be connected inductively, capacitively or resistively via an ohmic resistor to a high-voltage transformer and are provided as a single row of the plurality of individual electrodes arranged parallel to one another.
- Electrodes for corona pretreatment are known in principle from the prior art. In this connection, reference is made, for example, to the publication DE 1 923 098 A1. Such electrodes are used with nes high-frequency plasma, a material web surface, in particular a film surface, modified or pretreated in terms of material technology. Here, however, only a charge and no discharge takes place and a grounded counter electrode is required via this.
- Discharge electrodes are known as passive discharge electrodes in the form of grounded tips or tongues in a variety of embodiments.
- active discharge electrodes that can be connected to a high-voltage alternating current source. They are used to discharge or remove the positive and / or negative charge on the surface of preferably fast moving material webs, such as those used in gravure printing, for example.
- These known active discharge electrodes usually have at least several rows of needle-shaped individual electrodes arranged parallel to one another, which are arranged parallel to one another within a row provided with a tip at their free end and can be connected to a high voltage source. At least one non-insulated conductor is arranged along a row of electrodes, preferably parallel thereto.
- the invention is based on the object of specifying a rod-shaped ionization electrode which can be used particularly flexibly and which is characterized in particular by its simple structure.
- the cascade insert according to the invention is in particular a modular insert which can be flexibly used and / or exchanged for an ionizing bar.
- the cascade insert itself is characterized by its modular structure, which has at least one cascade circuit received in a potting compound, which in turn can be exchanged as required.
- a plurality of cascade circuits are provided in the housing of the cascade insert, viewed in the longitudinal direction of the housing and each cascade circuits cast in potting material.
- an electronic control system preferably in the form of a modular block, is included in the housing of the cascade insert in order to suitably control the at least one cascade circuit of the cascade insert. It is advisable here to provide the control electronics preferably in an end region of the housing of the cascade insert and be adjacent to one of the at least one cascade circuit. In this context it is then conceivable that the carrier, from which the plurality of electrode tips of the one cascade circuit is received, extends in the longitudinal direction of the housing at least in some areas over the end area of the housing in which the control electronics are accommodated.
- an active electrode arrangement can be provided over the entire length of the cascade insert.
- At least one electrical connection for supplying energy to the at least one cascade circuit and at least one data interface for data communication with the control electronics are preferably provided in an end face of an end area of the housing in which the control electronics are accommodated.
- the at least one data interface and the control electronics are preferably designed for bidirectional communication, in particular via a CAN bus.
- an interface for the manual input of control commands to the control electronics is provided, preferably in an end face of the end area of the housing in which the control electronics are accommodated.
- a display device in particular in the form of at least one LED and / or in the form of a display, is also preferably provided in the end face of the end region of the housing in which the control electronics are accommodated is for the optical output of information to the user of the cascade insert.
- the at least one cascade circuit also has at least one oscillator which is likewise cast in by the potting material.
- the control electronics and not the cascade circuit
- the at least one oscillator is a digital oscillator which has no power loss.
- the modular structure of the cascade insert makes it possible that the individual cascade circuits accommodated in the housing can be switched on or off individually and as required in order to assign an operating mode of the cascade insert (and in the figurative sense of the ionization bar, which is equipped with the cascade insert) vary.
- the plurality of electrode tips of the individual cascade circuits accommodated in the housing are coupled to one another, in particular capacitively, inductively, resistively or galvanically, or can be coupled as required. In this way, electrodes can be switched on or off in certain areas, which further increases the field of application of the cascade insert according to the invention.
- the modular or modular structure of the cascade insert enables the individual cascade circuits received in the housing to be accommodated in the housing of the cascade insert, preferably individually exchangeable, and in particular to be galvanically connected to one another via plug connections.
- the invention also relates to an ionizing bar for contact-free neutralization of electrostatic charges in particular of insulating materials, the ionizing bar having an outer housing in the form of an open profile and at least one cascade insert of the aforementioned type.
- the open profile of the outer housing of the ionizing bar has a geometry adapted to the outer geometry of the housing of the cascade insert, in such a way that the at least one cascade insert is at least partially exchangeable in the outer housing of the ionizing bar.
- the outer housing has a carrier extension which is aligned with the carrier of the at least one cascade insert in the longitudinal direction of the outer housing and in which a plurality of electrode tips are received, which are preferably galvanically coupled to the electrode tips received by the carrier of the at least one cascade insert.
- FIG. 1 schematically and in an isometric, partially sectioned exploded view, an exemplary embodiment of the ionizing bar according to the invention.
- FIG. 2 schematically and in an isometric partial sectional view an exemplary embodiment of the inventive ionization rod according to, for example, FIG. 1 used cascade insert.
- the exemplary embodiment of the ionizing bar 20 according to the invention is particularly suitable for the contact-free neutralization of electrostatic charges and / or for targeted charging (optionally positive or negative), in particular of insulating materials.
- the ionizing bar 20 has an outer housing 21, for example, in the form of a partially open profile.
- a cascade insert 1 is at least partially accommodated, preferably exchangeably.
- the outer housing 21 can be mounted with the cascade insert 1 received at least in some areas in the outer housing 21 transversely to the direction of movement of a substrate to be treated (not shown in the drawings).
- the ionizing bar 20 according to the invention is particularly suitable as an antistatic device for reducing electrostatic charges on moving material webs. It is characterized in particular by its simplified handling, improved operability and reduced dimensions. For this purpose, all components of the ionizing bar 20 necessary for operation are integrated in the cascade insert 1, which is preferably interchangeable in the outer housing 21 of the ionizing bar 20 and can be accommodated.
- the cascade insert 1 is, in particular, an insert with a modular structure which can be used flexibly with an ionizing bar 20 and / or which can be exchanged.
- FIG. 1 it is provided that in the housing 2 of the cascade insert 1, two cascade circuits 3, which are arranged one behind the other as seen in the longitudinal direction of the housing 2 and are each cast in potting material 4, are provided.
- At least one electrical connection 7 for supplying energy to the at least one cascade circuit 3 and at least one data interface 8 for data communication with the control electronics 6 are preferably provided in an end face of an end area of the housing 2 in which the control electronics 6 are accommodated are.
- the min least one data interface 8 and the control electronics 6 are preferably designed for bidirectional communication, in particular via a CAN bus.
- the cascade insert 1 has an interface for the manual input of control commands to the control electronics 6 in an end face of the end area of the housing 2 in which the control electronics 6 is received. Furthermore or as an alternative to this, it is advantageous if a display device, in particular in the form of at least one LED and / or in the form of a display, is also preferably provided in the end face of the end region of the housing 2 in which the control electronics 6 is accommodated optical output of information to the user of the cascade insert 1.
- FIG. 2 shows an exploded view of an embodiment of the ionizing bar 20 according to the invention for neutralizing electrostatic charges without contact.
- the ionizing bar 20 has an outer housing 21 in the form of an open profile and at least one cascade insert 1 of the type mentioned above.
- the open profile of the outer housing 21 of the ionizing bar 20 has a geometry that is adapted to the outer geometry of the housing 2 of the cascade insert 1, namely such that the at least one cascade insert 1 can be accommodated in the outer housing 21 of the ionizing bar 20, at least in some areas, so as to be exchangeable.
- the outer housing 21 has a carrier extension 22 which is aligned with the carrier 5 of the at least one cascade insert 1 in the longitudinal direction of the outer housing 21 and in which a plurality of electrode tips 9 are accommodated, which are accommodated with those received by the carrier 5 of the at least one cascade insert 1 Electrode tips 9 are preferably galvanically coupled.
- the ionizing bar 20 can have at least one active electrode arrangement which has a plurality of preferably navel-shaped individual electrodes, and which is electrically connected to an associated voltage source during operation of the ionizing bar 20.
- the voltage source is expediently designed as a high voltage source in order to apply a corresponding high voltage to the electrode arrangement. These are usually voltages of around 1,000 V and higher.
- the voltage source is therefore also referred to as a “high voltage source”, it being understood that the voltage source can also provide lower voltages.
- the ionizing bar 20 comprises a control device which controls the high-voltage source connected to the electrode arrangement.
- the control device is preferably accommodated in the cascade insert 1 of the ionizing bar 20.
- the high-voltage source is preferably also arranged in the cascade insert 1 of the ionization rod 20. This enables an additional improvement in the handling of the ionization bar, in particular because a separate connection 7 of the ionization bar or of the cascade insert 1 to a high-voltage source outside the ionization bar 20 can be omitted.
- the electrode arrangement of the ionizing bar 20, and in particular the individual electrodes, serve the purpose of building up an electrical potential relative to a moving material web in order to reduce any electrostatic charge that may exist on the material web.
- the respective individual electrode can be preceded by an electrical resistor.
- the control device is expediently designed or programmed in such a way that, by controlling the high-voltage source, it builds up such an electrical potential that leads to a reduction in the electrostatic charges on the material web.
- a negative high voltage is applied to the individual electrodes when the electrostatic charges on the material web are positive and the material web is thus positively charged.
- the electrostatic charges are preferably carried away from the material web, whereby the electrostatic charges on the material web are reduced and neutralized as far as possible.
- the ionizing bar 20 has two active electrode arrangements, namely an active positive electrode arrangement with several active needle-shaped single positive electrodes and an active negative electrode arrangement with several active needle-shaped single negative electrodes.
- the positive electrode arrangement can be connected to a high-voltage source that is positively charged and is accordingly referred to as a positive high-voltage source
- the negative electrode arrangement can be connected to a negative high-voltage source, which can be referred to as a negative high-voltage source.
- the positive electrode assembly and the negative electrode assembly are expediently arranged together in the outer housing 21 of the ionization rod 20.
- the respective positive electrodes and negative electrodes can run along parallel lines along the ionization bar 20 or an end face of the ionization bar 20.
- Embodiments are also conceivable in which the positive electrodes and the negative electrodes are arranged alternately along a common line.
- Such a configuration of the ionizing bar 20 leads to a further reduction in the space required by the ionizing bar 20, because no different and spaced apart housings 2 are required, in each of which the positive electrode assembly or the negative electrode assembly is arranged.
- the ionization rod 20 has power electronics which are also integrated in the cascade insert 1.
- the power electronics are used in particular to convert an electrical primary supply available to the ionizing bar 20 in accordance with the requirements required for operating the ionizing bar 20.
- the primary electrical supply is usually a generally available electrical supply, in particular in the form of an electrical current or an electrical voltage that can be drawn from a normal socket of an electrical network operator.
- a low-voltage network in which, for example, a voltage with a value of 24 VDC or 90-400 VAC with frequencies between 50 and 60 Hz are made available, which voltages and currents required for the operation of the ionizing bar 20, in particular the respective active electrode arrangement, through the power electronics in the be said and frequencies are converted.
- the power electronics have at least one voltage converter which converts a primary voltage given by the electrical primary supply into a secondary voltage.
- the voltage converter converts the primary voltage, which is available, for example, as a low voltage into a medium voltage and / or a high voltage and makes this available to the electrode arrangement, for example.
- a high-voltage source is connected to the power electronics or, in particular, can be the power electronics or a part thereof.
- the power electronics for the respective electrode arrangement or the respective high-voltage source can have at least one such voltage converter. This means that the power electronics can have at least one such voltage converter for the positive electrode arrangement or for the positive high voltage source and at least one other such voltage converter for the electrode arrangement or the negative high voltage source.
- the power electronics can also have at least one frequency converter which converts a primary frequency of the primary voltage made available by the electrical primary supply.
- a frequency converter can reduce and / or increase the primary frequency of the primary voltage.
- a primary alternating voltage can be converted into a direct voltage and / or a voltage with a frequency different from the primary frequency of the primary voltage.
- a separate frequency converter of the power electronics can be provided for the respective electrode arrangement.
- the power electronics are connected to the control device in order to electrically supply the ionization rod 20, in particular the at least one active electrode arrangement, according to the respective requirements.
- the control device can be designed or programmed in such a way that it controls the power electronics and, in particular, the respective high-voltage source. controls that such a voltage required to reduce the electrostatic charge of the material web is applied to the at least one electrode arrangement, in particular to the associated electrodes.
- the ionizing bar 20 has a sensor system which is used to record parameters of the ionizing bar 20 and / or the material web.
- the sensors could also be used to record parameters of an associated production facility.
- the sensor system is expediently connected to the control device and integrated in the cascade insert 1 of the ionization bar, so that the parameters detected by the sensor system are passed on to the control device in order to be further processed by the control device.
- the control device can be designed or programmed in such a way that it controls the power electronics and / or the high-voltage source on the basis of the parameters detected with the aid of the sensors.
- the parameters detected by the sensor system can be, for example, an operating state of the ionizing bar 20 and / or that of the material web and / or the production plant.
- the sensor system can accordingly detect, for example, the speed at which the material web is moving and, in particular, whether the material web is motionless.
- the sensor system can be designed or configured such that it can detect a polarity of the material web.
- the sensor system can be designed or configured in such a way that it can detect a neutralization current that flows due to the reduction of the electrostatic charges on the material web on the at least one active electrode arrangement.
- the sensor system can also detect the voltages and / or currents made available by the power electronics of the respective electrode arrangement and / or other components of the ionization rod 20 or of the cascade insert 1.
- the sensor system can in particular be connected to the power electronics and / or the respective high-voltage source and / or the respective electrode arrangement.
- the sensor system can in particular have a sensor electrode arrangement which comprises several needle-shaped individual sensor electrodes and which is electrically connected to a ground, in particular grounded, when the ionization rod 20 is in operation. The aforementioned neutralization current and / or the polarity of the material web can be detected by the sensor electrode arrangement.
- the ionizing bar 20 preferably has a signaling device arranged on a side face of the outer housing 21.
- the signal device can be designed or configured in such a way that it outputs a signal depending on at least one parameter of the ionizing bar 20 and / or the material web and / or the production system, the parameter being able to be detected in particular by the sensor system.
- the signal device has a visual display device. In this way, a signal can be reproduced optically and consequently by means of an optical signal and / or optical signals.
- the housing 2 of the cascade insert 1 is preferably filled with a potting compound in which the cascade circuit 3 is preferably arranged.
- a display device which can output at least two different optical signals is particularly suitable as the optical display device.
- the optical display device can therefore display two different colors, for example, and is designed as an RGB display, for example.
- the optical display device can have at least one light-emitting diode (LED) and / or a pixel matrix, which is designed for example in the form of an active matrix display made of LEDs or as a liquid crystal display (LCD).
- LED light-emitting diode
- LCD liquid crystal display
- the ionizing bar 20 can expediently have one or more communication interfaces.
- a communication interface serves the purpose of communication between the ionizing bar 20 and another communication device.
- the communication device can be, for example wise be a computer, controller, control panel and the like.
- the communication device allows parameters of the ionizing bar 20 to be read out by means of the communication interface.
- communication can also take place with the control device, in particular to change, activate, deactivate, and the like, the programming of the control device.
- the respective communication interface can therefore be a communication connection, for example a USB connection 7, arranged on or in the housing 2 of the cascade insert 1.
- the communication interface can in particular be designed as a wireless communication interface which enables wireless communication, that is to say in particular wireless transmission and / or reception of signals and / or communication data or data.
- a communication point can therefore in particular be designed as a wireless LAN (WLAN) interface and communicate with any device. Due to the wireless communication interface, a corresponding connection 7 via a cable and the like can be omitted.
- WLAN wireless LAN
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019105231.9A DE102019105231B4 (en) | 2019-03-01 | 2019-03-01 | CASCADING INSERT FOR AN IONIZATION BAR AND IONIZATION BAR WITH A CASCADING INSERT |
PCT/EP2020/055076 WO2020178109A1 (en) | 2019-03-01 | 2020-02-27 | Cascade insert for an ionising bar and ionising bar having a cascade insert |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3931923A1 true EP3931923A1 (en) | 2022-01-05 |
EP3931923B1 EP3931923B1 (en) | 2023-01-25 |
Family
ID=69723930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20707611.8A Active EP3931923B1 (en) | 2019-03-01 | 2020-02-27 | Cascade insert for an ionising bar and ionising bar having a cascade insert |
Country Status (4)
Country | Link |
---|---|
US (1) | US11646552B2 (en) |
EP (1) | EP3931923B1 (en) |
DE (1) | DE102019105231B4 (en) |
WO (1) | WO2020178109A1 (en) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1923098A1 (en) | 1969-05-06 | 1971-02-18 | Windmoeller & Hoelscher | Pre-treating plastics tubular films by - high-voltage spark discharge prior to printing or adhesive |
JPH05289471A (en) * | 1992-04-07 | 1993-11-05 | Sharp Corp | Electrostatic charge device |
JP4903942B2 (en) * | 2001-03-15 | 2012-03-28 | 株式会社キーエンス | Ion generator |
DE10116993C2 (en) * | 2001-04-05 | 2003-04-10 | Haug Gmbh & Co Kg | Luftionisationsgerät |
US7054130B2 (en) * | 2004-06-03 | 2006-05-30 | Illinois Tool Works Inc | Apparatus and method for improving uniformity and charge decay time performance of an air ionizer blower |
JP4759430B2 (en) | 2006-04-13 | 2011-08-31 | 株式会社コガネイ | Static eliminator and discharge module |
JP4874771B2 (en) * | 2006-11-30 | 2012-02-15 | 株式会社キーエンス | Ionizer |
DE102009033827B3 (en) * | 2009-07-18 | 2011-03-17 | Thomas Ludwig | Unloading device for contactless dismantling of electrostatic loads on isolating materials, comprises electrode, which is attached on positive and negative high voltage source |
JP5945928B2 (en) * | 2012-03-30 | 2016-07-05 | Smc株式会社 | Charge generator |
DE102012207219B4 (en) * | 2012-04-30 | 2017-11-23 | Gema Switzerland Gmbh | Anti-static device and associated operating method |
EP2775575B1 (en) * | 2013-03-04 | 2017-02-01 | Illinois Tool Works Inc. | Ionization apparatus |
DE102016101497B3 (en) * | 2016-01-28 | 2017-05-24 | Haug Gmbh & Co. Kg. | Luftionisationsgerät |
WO2019021102A1 (en) * | 2017-07-27 | 2019-01-31 | Naturion Pte. Ltd. | Ion generator device |
-
2019
- 2019-03-01 DE DE102019105231.9A patent/DE102019105231B4/en active Active
-
2020
- 2020-02-27 US US17/310,953 patent/US11646552B2/en active Active
- 2020-02-27 WO PCT/EP2020/055076 patent/WO2020178109A1/en active Application Filing
- 2020-02-27 EP EP20707611.8A patent/EP3931923B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11646552B2 (en) | 2023-05-09 |
DE102019105231A1 (en) | 2020-09-03 |
US20220209510A1 (en) | 2022-06-30 |
WO2020178109A1 (en) | 2020-09-10 |
DE102019105231B4 (en) | 2022-02-24 |
EP3931923B1 (en) | 2023-01-25 |
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