• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1493647 Ink jets INTERNATIONAL BUSINESS MACHINES CORP 14 Oct 1975 [18 Dec 1974] 41932/75 Heading B6P To prevent the formation of or cause the merging of satellite droplets with the main droplets of an ink jet two periodic signals are applied successively but asynchronously to a filament of ink. As shown in Fig. 2 this is achieved by applying a signal of wavelength # to an electromagnet whose pairs of pole faces 16, 18 and 17, 19 are separated by a distance not equal to #. Alternatively, Fig. 5, the piezoelectric transducer 36 and electromagnetic transducer 38 receive periodic but asynchronous signals 37, 43 respectively.
    公开号:SU878212A3
    申请号:SU752301053
    申请日:1975-12-16
    公开日:1981-10-30
    发明作者:Фрэнк Хелински Эдвард；Луис Зэйбл Джек
    申请人:Интернэшнл Бизнес Машинз Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    (54.) PAINTING PRINTING DEVICE
    one
    Ieoburetenne refers to avs latika and computing, in particular to devices for the visual. presenting the output data, and Can be used as a terminal device in information processing and control systems with electronic computers for recording alphanumeric, information.
    Ink-jet printing devices are known, which contain an ink tank with a nozzle, inside which there is a converter, through which ink is ejected in the form of droplets under pressure, a converter for combining satellites with drops, connected to a voltage generator and having an excitation winding and a field 0, deflection plates connected to voltage sources for controlling the ink jet both vertically and horizontally.
    The device uses non-magnetic ink that cannot be exposed to electromagnetic means, this ink is exposed only to electrostatic means.
    In the known device, complex, highly specialized systems are required for eliminating or combining satellites with drops;
    may work only under certain conditions of use.
    NSSW closer to the proposed technical entity is an inkjet printing device: designed for working with magnetic ink, containing a reservoir with a nozzle for pressurized paint and successively located electromagnetic pre-, the former with a winding, one end of which is connected to the nozzle, and the other to an excitation generator connected to a nozzle, deflecting electrodes connected to voltage sources to control the ink jet vertically and horizontally, and tapes drop roller with catching device. In the device, the ink jet (magnetized ink droplets) is polarized with an electromagnetic transducer with one pair of magnetic poles, then the droplets pass a pair of permanent magnets, creating a constant, but due to the geometric formulas of the magnets
    a non-uniform magnetic field in which the droplets deflect according to their polarization 21,
    The design of this converter is not intended and is not suitable for eliminating the satellites (satellite drops, which makes the device unreliable in operation.
    The purpose of the invention is to increase the reliability of the device by combining droplets and satellite drops into a stream of paint.
    The goal is achieved by the fact that, in an inkjet GD printer, there is a reservoir with a nozzle for pressurized paint and a series-arranged electromagnetic transducer with a winding, one end of which is connected to the nozzle and the other to the excitation generator connected to the nozzle, deflecting electrodes, connected to sources of voltage to control the ink jet vertically and horizontally, and a tape roller with a pressing device, an electromagnetic core the transformer is made C-shaped with N pairs of poles, where N 2 and the distance between the middle pole lines of adjacent pairs is determined by the ratio
    A (n - // 2)) R 6 X (vi + i / ij; where 0.3-0.4 mm (wavelength); n 1-3,
    FIG. 1 is a diagram of the ink jet apparatus in FIG. 2 and 3 - spatial relations of the electromagnet poles. the transducer and periods of droplets in the ink jet; Fig. 4 shows the pole distances of the transducer core with two poles; in fig. 5 contours of a magnetic field of a bipolar electromagnetic converter.
    The inkjet printing device contains a reservoir 1 with a nozzle 2 for inks under pressure and successively located electromagnetic transducer 3 with a winding 4, one end of which is connected to the nozzle 2 and the other to the excitation generator 5 (frequency of excitation of drops) AC connected to the nozzle 2, the deflecting electrodes (electromagnets) 6 and 7 connected to the source 8 and 9 .. voltage / to control the ink jet 10 vertically and horizontally corresponding and a tape roller (not shown), on which the information carrier 11 is located, with a catching device 12, and the electromagnetic transducer 3 has a C-shaped core with N pairs of poles 13-16 (FIG. 2 and 3 show two pairs, and in Fig. 4 - three), the distance between the average pole lines of the adjacent pairs of poles (13 and 15, 14 and 16) is determined by the ratio A () 4-Ri X (n + -g / i) where X is 0.3-0.4 mm (wavelength); n 1-3.
    Magnetic ink (ink) should preferably be isotropic and practically free from residual magnetization. An example of a magnetic ink can be a stable colloidal suspension in water of magnetite particles (FcjO) with a diameter of about 100
    The device works as follows.
    Paint from reservoir 1 is fed to nozzle 2 under pressure from 1.25 to 3.5 bar. From the end of the nozzle 2, the paint is jet 10.
    The gap between the surfaces of the poles 13, 15 and 14, 16 should not be too wide so that the magnetic field generated by the current flowing through the winding 4 can produce the desired effect on the jet 10 and cause the required jet disturbances.
    The excitation of the winding 4 of the converter 3 by the generator 5 leads to repeated violations of the ink jet 10, as a result of which the jet is dissected into a row distributed with the same interval of droplets 17, having basically equal diameter Separable droplets 17 (Fig. 2) are accompanied satellites 18, the speed of which may be more or less than the speed of drops. A jet of 10 drops of paint then passes through the lumen of the deflecting electrode (magnet) 6, the power supply to the winding of which is provided by a voltage source 8 (signal generator). The source 8 sends signals in combination with an informing signal and ensures the deviation of the preferred droplets 17 from the initial jet path. These droplets are finally perceived by a catching device 12 installed in front of the recording medium 11, 6 drops rejected by a deflecting electrode (magnet), along with undone drops, pass through the lumen of another deflecting electrode (magnet) 7 located in front of the catching device 12 and the carrier 11 record. A sawtooth signal formed by the voltage source 9 (generator) is fed to the winding of the electrode 7. As a result, all the droplets 17 are deflected vertically. The droplets already deflected by the deflecting electrode b are captured by the catching device 12 and the drops that have passed the knife 19 of the catching device 12 that have not been deflected are deposited on the recording medium 11 in accordance with the signal supplied by the source 9 and the time spent for the drops 17 in the magnetic field created by the oa-cloning electrode 7. The recording medium 11 is moved relative to the incoming jet of droplets in the direction of arrow 20. As a result, a droplet recording matrix is formed in the form of letters or other characters.
    The combination of the satellites (in the forward or backward direction) is due to the fact that the distance between the poles
    13 and 15 differs from the distance between the constrictions, as a result of which the constricted part and the thread-like part of the jet 10 in the BTOpOjR zone of the pair of poles 14 and
    16 is subjected to oppositely directed longitudinal acceleration forces. Therefore, when a pulse arises at the second pair of poles
    14 and 16 (FIG. 2) caused by the disturbance of the first pair of poles 13 and 15, the narrowing is located to the left of the axial line 21. As a result of the magnetic field acting on this part of the magnetic line, the predominant part of the constriction is affected by the flow-directed accelerating force, and the thread-like part slowed in the opposite direction. The current pulse from this varies and the thread-like part and the droplets move towards each other at different speeds and, finally, combine.
    In FIG. 3, the circumstances are completely inverse. The impulse of the second pair of poles 14 and 16 exposes the jet 10 to a disturbing force that slows down the droplet-shaped part of the constriction and accelerates the thread-like part in front of the pole pair. The excitation of the magnetic transducer 3 pulls the constrictions due to the magnetic particles excited at the poles pole surfaces. The gradient of the floor causes the occurrence of longitudinal accelerating and decelerating forces in the zone of the jet 10, which encompasses the narrowing and connecting threadlike parts of the jet. The contour of the power field of the DC signal in the winding 4 is represented for the pole pairs 15, 13 and 16, 14 by curves 22 and 23 (Fig. 5). Since the same excitation signal is applied to the pole pairs, an inappropriate distance wavelength results in the formation of a phase-shifted longitudinal force component, affecting the constriction and thread-like parts in the zone of the second pole pair.
    Another variant of the reason for the formation of phase-shifted forces can be the separate feeding of pole pairs by phase-shifted currents.
    In the example implementation of the device (Fig. 2), the following parameters were used:
    Paint pressure, bar 1.4-2, 1 Distance between drops, (; mm 0.31-0.375 Excitation frequency,; 1KHz33
    Nozzle diameter, mm 0.0625 Pole thickness, mm 0.2 Center distance between the poles, mm 0.375 Clearance of the exciting magnet, mm 0.15
    o
    With such an arrangement, when the divergence between the pairs of poles is equal to the wavelength, the particles combine within eight wavelengths. When choosing the distance between pairs
    5 poles, exceeding the wavelength, the combination of particles occurs within five wavelengths.
    In the examples of implementation described above, with the help of devices that create disruptive jets, twofold dislocations relative to each other in phase are formed. In the embodiment shown in FIG. 4, an image is implemented using a single electromagnetic transducer.
    5 3, acting on jet 10 at three different locations. Between pole pairs 15 and 13; 16 and 14, - 24 and 25 (with the number of poles equal to three) there are various (among themselves
    0 and relative to the constrictions of the jet 10) distances, namely (X + D) and (A + L), indicated in FIG. 4 axial lines 26-28. Both first pole pairs 15 and 13, 16 and 14 work mainly
    5 as described above. With the help of the pole pair 24 and 25, the constriction is exposed to an additional disturbance, which additionally alters the pulse of the jet 10 and additionally enhances the effect of combining.
    The proposed device combines the satellites with drops of paint with relatively simply manufactured and
    5 easily operated technical means. At the same time, the elasticity of the work process is ensured, since the combination can occur both in front and behind in the direction of the jet, thereby comparing with the known devices, the proposed device is more reliable.
    权利要求:
    Claims (1)
    [1]
    1. US Patent 3579245, cl. 346-1, published on. 1971.
    2, US Patent 3,698,002,
    cl. 346-1, pub. 1972 (prototype)
    sixteen
    P 11
    28
    27
    类似技术:
    公开号 | 公开日 | 专利标题
    SU878212A3|1981-10-30|Paint sprying printing device
    US3287734A|1966-11-22|Magnetic ink recording
    US3928855A|1975-12-23|Method and apparatus for controlling satellites in an ink jet printing system
    GB1459550A|1976-12-22|Liquid droplet printers
    US5049899A|1991-09-17|Method of high resolution printing using satellite ink drops in a continuous ink jet printer
    US3916419A|1975-10-28|Method an apparatus for asynchronously forming magnetic liquid droplets
    US3500436A|1970-03-10|Fluid transfer device
    GB1099871A|1968-01-17|Improvements in or relating to a method and apparatus for printing legible characters
    US4070679A|1978-01-24|Method and apparatus for recording information on a recording surface by the use of magnetic ink
    US3484794A|1969-12-16|Fluid transfer device
    US4027309A|1977-05-31|Ink jet printer apparatus and method of printing
    GB1488320A|1977-10-12|Liquid droplet recording apparatus
    US3805272A|1974-04-16|Recording system utilizing magnetic deflection
    US3878518A|1975-04-15|Method and apparatus for linearly amplifying the deflection of a droplet of a liquid magnetic stream
    US4027308A|1977-05-31|Method and apparatus for forming droplets from a magnetic liquid stream
    US4280130A|1981-07-21|Forming droplets for ink jet printing
    CA1089914A|1980-11-18|Vector magnetic ink jet printer with stabilized jet stream
    CA1062760A|1979-09-18|Ink jet printer apparatus and method of operation
    JPS5644669A|1981-04-23|Ink-jet recorder
    Fan1976|Magnetic Ink Jet
    US5906157A|1999-05-25|High speed impact print hammer
    EP0278589A1|1988-08-17|Droplet deposition apparatus
    US4984911A|1991-01-15|Ink dot printer
    JPH02147244A|1990-06-06|Ink jet printer
    JPH02175254A|1990-07-06|Ink jet printer
    同族专利:
    公开号 | 公开日
    FR2294849A1|1976-07-16|
    DE2554457C3|1978-09-07|
    NL7513899A|1976-06-22|
    US3979756A|1976-09-07|
    JPS5186326A|1976-07-28|
    ES443260A1|1977-08-16|
    CH595993A5|1978-02-28|
    GB1493647A|1977-11-30|
    BR7508376A|1976-09-08|
    SE7513551L|1976-06-21|
    JPS5527859B2|1980-07-23|
    FR2294849B1|1978-05-12|
    SE411492B|1979-12-27|
    DE2554457A1|1976-07-01|
    CA1039790A|1978-10-03|
    DE2554457B2|1978-01-12|
    IT1050017B|1981-03-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3334351A|1965-06-16|1967-08-01|Honeywell Inc|Ink droplet recorder with plural nozzle-vibrators|
    JPS5441329B2|1973-05-30|1979-12-07|GB1563856A|1976-06-10|1980-04-02|Coulter Electronics|Methods and apparatus for delectively separating small particles suspended in a liquid|
    JPS54159228A|1978-06-07|1979-12-15|Ricoh Co Ltd|Method and apparatus for ink jet recording|
    US4230558A|1978-10-02|1980-10-28|Coulter Electronics, Inc.|Single drop separator|
    US4220958A|1978-12-21|1980-09-02|Xerox Corporation|Ink jet electrohydrodynamic exciter|
    DE2913219A1|1979-04-03|1980-10-23|Agfa Gevaert Ag|DEVICE AND METHOD FOR RECORDING INFORMATION|
    US4523201A|1982-12-27|1985-06-11|Exxon Research & Engineering Co.|Method for improving low-velocity aiming in operating an ink jet apparatus|
    US4523200A|1982-12-27|1985-06-11|Exxon Research & Engineering Co.|Method for operating an ink jet apparatus|
    US5285215A|1982-12-27|1994-02-08|Exxon Research And Engineering Company|Ink jet apparatus and method of operation|
    US4784323A|1987-07-17|1988-11-15|Walbro Corporation|Electromagnetic atomizer|
    US4925103A|1989-03-13|1990-05-15|Olin Corporation|Magnetic field-generating nozzle for atomizing a molten metal stream into a particle spray|
    AU4663389A|1989-03-13|1990-10-09|Olin Corporation|Atomizing devices and methods for spray casting|
    US5646663A|1994-09-16|1997-07-08|Videojet Systems International, Inc.|Method and apparatus for continuous ink jet printing with a non-sinusoidal driving waveform|
    GB9601232D0|1996-01-22|1996-03-20|The Technology Partnership Plc|Method and apparatus for ejection of particulate material|
    US5843579A|1996-06-27|1998-12-01|Ncr Corporation|Magnetic thermal transfer ribbon with aqueous ferrofluids|
    US6070973A|1997-05-15|2000-06-06|Massachusetts Institute Of Technology|Non-resonant and decoupled droplet generator|
    US6509917B1|1997-10-17|2003-01-21|Eastman Kodak Company|Continuous ink jet printer with binary electrostatic deflection|
    US6402305B1|1997-10-17|2002-06-11|Eastman Kodak Company|Method for preventing ink drop misdirection in an asymmetric heat-type ink jet printer|
    US6254225B1|1997-10-17|2001-07-03|Eastman Kodak Company|Continuous ink jet printer with asymmetric heating drop deflection|
    US6012805A|1997-10-17|2000-01-11|Eastman Kodak Company|Continuous ink jet printer with variable contact drop deflection|
    US6079821A|1997-10-17|2000-06-27|Eastman Kodak Company|Continuous ink jet printer with asymmetric heating drop deflection|
    US5963235A|1997-10-17|1999-10-05|Eastman Kodak Company|Continuous ink jet printer with micromechanical actuator drop deflection|
    GB2338927B|1998-07-02|2000-08-09|Tokyo Electric Co Ltd|A driving method of an ink-jet head|
    GB2338928B|1998-07-02|2000-08-09|Tokyo Electric Co Ltd|A driving method of an ink-jet head|
    WO2000047419A1|1999-02-09|2000-08-17|Source Technologies, Inc.|Acicular particle ink formulation for an inkjet printer system|
    US6883904B2|2002-04-24|2005-04-26|Eastman Kodak Company|Apparatus and method for maintaining constant drop volumes in a continuous stream ink jet printer|
    US7077334B2|2003-04-10|2006-07-18|Massachusetts Institute Of Technology|Positive pressure drop-on-demand printing|
    US7207652B2|2003-10-17|2007-04-24|Lexmark International, Inc.|Balanced satellite distributions|
    DE102006045060A1|2006-09-21|2008-04-10|Kba-Metronic Ag|Method and apparatus for producing variable drop volume ink drops|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/534,043|US3979756A|1974-12-18|1974-12-18|Method and apparatus for merging satellites in an ink jet printing system|
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