公开(公告)号：US20240316921A1

公开(公告)日：2024-09-26

申请号：US18611784

申请日：2024-03-21

申请人： SEIKO EPSON CORPORATION

发明人： Asami OKAMOTO

IPC分类号： B41J2/045 ,  B41J2/025

CPC分类号： B41J2/04581 ,  B41J2/025

摘要： A head unit includes a piezoelectric element displaced according to a driving signal to cause a liquid to be ejected, a driving signal generation unit that generates the driving signal, a residual vibration signal generation circuit that outputs a change in an electromotive force of the piezoelectric element according to residual vibration, in a pressure chamber in communication with a nozzle, that occurs after supply of the driving signal, as a residual vibration signal, an analog differential residual vibration signal generation circuit that converts the residual vibration signal into an analog differential residual vibration signal, a demodulation circuit that demodulates the analog differential residual vibration signal and outputs a demodulated signal, an AD converter that converts the demodulated signal into a digital signal, and a determination unit that determines, based on the digital signal, a state in the pressure chamber.

公开(公告)号：US09174434B2

公开(公告)日：2015-11-03

申请号：US13866082

申请日：2013-04-19

申请人： Johanathan Morgan ,  Johanathan Harvey Lucas

发明人： Johanathan Morgan ,  Johanathan Harvey Lucas

IPC分类号： B41J2/02 ,  B41J2/025

CPC分类号： B41J2/025

摘要： The present invention provides a droplet generator (10) of the velocity modulation type, the generator (10) being configured so that substantially all the modulation energy generated by piezo-electric crystals (60) is transformed into vibration of the nozzle (34). The generator preferably also includes an internal closure mechanism (70) which blocks off the nozzle (34) when the generator is not in operation, but which is de-coupled from the modulation process when the generator is operating.

摘要翻译： 本发明提供了一种速度调制型的液滴发生器（10），发生器（10）被配置为使得压电晶体（60）产生的基本上所有调制能量都转变成喷嘴（34）的振动。 发电机优选地还包括内部闭合机构（70），当发电机不工作时，内部闭合机构（70）阻挡喷嘴（34），但是当发电机工作时，其从调制过程中去耦合。

公开(公告)号：US07404626B2

公开(公告)日：2008-07-29

申请号：US11229459

申请日：2005-09-16

申请人： Michael J. Piatt ,  Randy L. Fagerquist

发明人： Michael J. Piatt ,  Randy L. Fagerquist

IPC分类号： B41J2/085

CPC分类号： B41J2/03 ,  B41J2/025

摘要： An inkjet printing system having a plurality of inkjets, wherein the inkjets are disposed in a row and directed toward a media, wherein the printhead includes a drop generator having an orifice plate, wherein the orifice plate has nozzles with a first and second group forming an inkjet, wherein the first group is in interleaved patterns with the second group, and the geometry of the first group is different from the second group. A stimulating device provides a signal to the continuous inkjets to produce a first and second group of drops with a first and a second breakoff length, wherein the first and second breakoff lengths are different; a charge plate with drop charging electrodes positioned adjacent each inkjet opposite the drop generator. A controller in communication with each drop charging electrode adapted to supply a pulse to each electrode to isolate the first and second group of drops.

摘要翻译： 一种具有多个喷墨打印系统的喷墨打印系统，其中所述喷墨喷嘴设置成一排并指向介质，其中所述打印头包括具有孔板的液滴发生器，其中所述孔板具有第一组和第二组的喷嘴， 喷墨，其中第一组与第二组交错图案，并且第一组的几何形状与第二组不同。 刺激装置向连续喷墨枪提供信号以产生具有第一和第二断裂长度的第一和第二组液滴，其中第一和第二断裂长度不同; 一个带有滴液充电电极的充电板，位于与液滴发生器相对的每个喷墨器附近 与每个液滴充电电极通信的控制器，其适于向每个电极提供脉冲以隔离第一和第二组液滴。

公开(公告)号：US20070146441A1

公开(公告)日：2007-06-28

申请号：US11527719

申请日：2006-09-27

申请人： Toru Miyasaka ,  Yuichiro Sano ,  Mamoru Okano ,  Tomohiro Inoue

发明人： Toru Miyasaka ,  Yuichiro Sano ,  Mamoru Okano ,  Tomohiro Inoue

IPC分类号： B41J2/045

CPC分类号： B41J2/025

摘要： A droplet generator comprising a first unit having an elongate liquid chamber one end thereof is open and at least one raw of orifices disposed in a line oppositely to the open end in the longitudinal direction of the first unit, a second unit having an elongate diaphragm provided on the bottom of the second unit and a plurality of vibrators provided within the diaphragm area, a vibrating apparatus provided on the top of the vibrators, and a stationary section to fix the vibrating apparatus; whereinthe diaphragm of the second unit is provided closely and oppositely to the open end of the liquid chamber of the first unit.

摘要翻译： 一种液滴发生器，包括具有细长液体腔的一端的第一单元是开口的，并且至少一个孔口沿与第一单元的纵向方向上的开口端相对的一条线设置，第二单元具有提供的细长隔膜 在第二单元的底部和设置在隔膜区域内的多个振动器，设置在振动器的顶部上的振动装置和固定振动装置的固定部分; 其中所述第二单元的隔膜与所述第一单元的所述液体室的开口端紧密相对地设置。

公开(公告)号：US20050279851A1

公开(公告)日：2005-12-22

申请号：US11147982

申请日：2005-06-06

申请人： Yehuda Ivri

发明人： Yehuda Ivri

IPC分类号： A61M11/00 ,  A61M15/00 ,  A61M16/00 ,  B05B11/02 ,  B05B12/08 ,  B05B17/00 ,  B05B17/06 ,  B41J2/025 ,  B41J2/04 ,  G01D15/16 ,  B05B17/04

CPC分类号： B05B12/08 ,  A61M11/005 ,  A61M11/006 ,  A61M15/0065 ,  A61M15/0081 ,  A61M15/0085 ,  A61M15/025 ,  A61M2016/0039 ,  A61M2205/3306 ,  A61M2205/3379 ,  A61M2205/3382 ,  A61M2205/3386 ,  A61M2205/3389 ,  A61M2205/8206 ,  B05B17/0646 ,  B05B17/0676 ,  B05B17/0684 ,  B41J2/025 ,  B41J2/04 ,  B41J2202/15

摘要： The invention provides exemplary methods and apparatus for dispensing liquids as an atomized spray. In one particularly preferably method, a liquid is dispensed as an atomized spray from a vibratable member having a front surface and a rear surface, with the member having at least one tapered hole between the surfaces for dispensing the liquid. The tapered hole has a larger cross-sectional area at the rear surface than at the front surface. The liquid is delivered from a supply container to the rear surface of the vibratable member in an amount sufficient to cover the hole with liquid. The vibratable member is then vibrated to dispense at least a portion of the liquid through the hole and from the front surface. Additional liquid is delivered from the supply container and to the rear surface in volumes that are substantially equal to the volumes dispensed.

摘要翻译： 本发明提供了用于将液体分配为雾化喷雾的示例性方法和装置。 在一个特别优选的方法中，液体作为雾化喷雾从具有前表面和后表面的可振动构件分配，该构件在表面之间具有用于分配液体的至少一个锥形孔。 锥形孔的后表面的横截面积比前表面的截面积大。 液体从供应容器以足以用液体覆盖孔的量被输送到可振动构件的后表面。 然后可振动的构件被振动以通过孔和从前表面分配至少一部分液体。 额外的液体从供应容器和后表面以基本上等于分配的体积的量输送。

公开(公告)号：US06883899B2

公开(公告)日：2005-04-26

申请号：US10399884

申请日：2001-10-22

申请人： Sukbir Singh Pannu ,  Nigel Edward Sherman

发明人： Sukbir Singh Pannu ,  Nigel Edward Sherman

IPC分类号： B41J2/025 ,  B41J2/04

CPC分类号： B41J2/025

摘要： A droplet generator for a continuous stream inkjet print head has an elongate cavity for containing the ink and nozzle orifices in a wall of the cavity for passing the ink from the cavity to form jets. The nozzle orifices extend along the length of the cavity. An actuator is disposed so as to address the face of the cavity opposite the wall to vibrate the ink in the cavity such that each jet breaks up into ink droplets at substantially the same predetermined distance from the wall. The actuator has a plurality of constituent sub-actuators each capable of independent vibration. The combined coverage of the face of the cavity by the sub-actuators is such that the jet break up can be achieved without resonance of the cavity in its dimension from the wall to the face.

摘要翻译： 用于连续流喷墨打印头的液滴发生器具有用于将油墨和喷嘴孔容纳在空腔的壁中的细长腔，用于使油墨从腔体通过以形成喷嘴。 喷嘴孔沿腔的长度延伸。 致动器被设置成对着与壁相对的空腔的表面，以使空腔中的墨水振动，使得每个射流在与壁大致相同的预定距离处分裂成墨滴。 致动器具有多个能够独立振动的构成子致动器。 通过副致动器的空腔面的组合覆盖使得可以实现射流分解，而不会使空腔在其尺寸上从壁到面的共振。

公开(公告)号：US06637871B1

公开(公告)日：2003-10-28

申请号：US10030671

申请日：2002-05-16

申请人： Graham D Martin ,  Nigel E Sherman ,  Sukbir S Pannu ,  Andrew D King

发明人： Graham D Martin ,  Nigel E Sherman ,  Sukbir S Pannu ,  Andrew D King

IPC分类号： B41J2025

CPC分类号： B41J2/1632 ,  B41J2/025 ,  B41J2/162

摘要： A droplet generator for a continuous stream ink jet print head includes an elongate cavity for containing the ink, nozzle orifices in a wall of the cavity for passing ink from the cavity to form jets. The nozzle orifices extend along the length of the cavity. An actuator is disposed on the opposite side of the cavity to the wall for vibrating the ink in the cavity by itself vibrating relative to the wall. The vibration is such that each jet breaks up into ink droplets at the same predetermined distance from the wall of the cavity. The thickness of the wall through which the nozzle orifices extend is less than 90 &mgr;m. The wall includes a planar member secured to the remainder of the droplet generator so as to form a boundary which extends around the nozzle orifices and within which the planar member is unsupported. The boundary includes first and second boundary lengths which extend along the length of the cavity on either side of the nozzle orifices. The distance between the first and second boundary lengths being less than 1700 &mgr;m.

摘要翻译： 用于连续流喷墨打印头的液滴发生器包括用于将油墨，喷嘴孔口容纳在空腔的壁中的细长空腔，用于使油墨从空腔传送以形成喷嘴。 喷嘴孔沿腔的长度延伸。 致动器设置在空腔的与壁相反的一侧上，用于通过其相对于壁自身振动来振动腔中的墨。 振动使得每个射流以与腔的壁相同的预定距离分裂成墨滴。 喷嘴孔延伸通过的壁的厚度小于90μm。 壁包括固定到液滴发生器的其余部分的平面构件，以便形成围绕喷嘴孔延伸并且平面构件不支撑的边界。 该边界包括沿喷嘴孔的任一侧上的空腔的长度延伸的第一和第二边界长度。 第一和第二边界长度之间的距离小于1700μm。

公开(公告)号：US20030156169A1

公开(公告)日：2003-08-21

申请号：US10276528

申请日：2003-04-14

发明人： Graham Dagnall Martin ,  Nigel Edward Sherman ,  Sukbir Singh Pannu

IPC分类号： B41J002/085 ,  B41J002/09

CPC分类号： B41J2/025 ,  B41J2/105

摘要： A continuous stream binary array ink jet print head comprising: an elongate cavity for containing the ink; an array of nozzle orifices (37) formed so as to extend through a wall of said cavity for passing ink from the cavity to form jets, said nozzle orifices (37) extending along the length of said cavity, said cavity being divided up along its length by at least one internal wall (33) thereby to create a plurality of sub-cavities (35) substantially acoustically isolated from one another, said dividing up of the cavity to form sub-cavities (35) correspondingly dividing up said array of nozzle orifices (37) between the sub-cavities (35) such that each sub-cavity communicates with one or more of the nozzle orifices (37) of the array; one or more actuator (39) means associated with each said sub-cavity for cyclically varying the dimensions of the sub-cavity thereby to cause the or each jet emanating from the nozzle orifice(s) of that sub-cavity to break up into ink droplets at a predetermined distance therefrom; charging means for selectively electrically charging the droplets of each jet; deflecting means for collecting the charged droplets; and a gutter for collecting droplets not used in printing, the droplets of each jet used in printing travelling along the same path to print.

摘要翻译： 一种连续流二进制阵列喷墨打印头，包括：用于容纳墨水的细长腔; 一组喷嘴孔（37），其形成为延伸穿过所述空腔的壁，用于使油墨从空腔传递以形成喷嘴，所述喷嘴孔（37）沿着所述空腔的长度延伸，所述空腔沿其沿着 通过至少一个内壁（33）的长度，从而形成彼此基本上声学隔离的多个子空腔（35），所述分隔空腔形成相应地分割所述喷嘴阵列的子空腔（35） 所述子腔（35）之间的孔（37）使得每个子腔与阵列的一个或多个喷嘴孔（37）连通; 与每个所述子腔相关联的一个或多个致动器（39）装置，用于循环地改变子腔的尺寸，从而使得从该子腔的喷嘴孔排出的或每个喷射分散成墨 液滴距预定距离; 用于选择性地对每个射流的液滴充电的充电装置; 用于收集带电液滴的偏转装置; 以及用于收集未用于印刷中的液滴的槽，用于打印中的每个喷射液滴沿同一路径行进进行印刷。

公开(公告)号：US06536881B1

公开(公告)日：2003-03-25

申请号：US09242984

申请日：1999-05-24

申请人： Nigel Edward Sherman ,  Graham Dagnall Martin ,  Sukbir Singh Pannu

发明人： Nigel Edward Sherman ,  Graham Dagnall Martin ,  Sukbir Singh Pannu

IPC分类号： B41J202

CPC分类号： B41J2/025

摘要： A continuous stream ink jet print head has a droplet generator with an elongate cavity for containing the ink, and nozzle orifices in a wall of the cavity for passing ink from the cavity to form jets. The nozzle orifices are disposed at spaced positions along the length of the cavity. An actuator for vibrating the ink in the cavity is provided such that each jet breaks up into ink droplets at the same predetermined distance from the wall of the cavity. The actuator is disposed on the opposite side of the cavity to the wall, includes a vibrator which is divided up along the length of the cavity at least partially into at least two parts, and includes a backing member disposed further from the cavity than the vibrator and secured to and bridging the parts into which the vibrator is at least partially divided. The vibrator is interposed in line between the backing member and the cavity.

摘要翻译： 连续流式喷墨打印头具有液滴发生器，其具有用于容纳墨水的细长空腔，以及在空腔的壁中的喷嘴孔，用于将油墨从腔体通过以形成喷嘴。 喷嘴孔沿着空腔的长度设置在间隔的位置。 提供用于使空腔中的墨振动的致动器，使得每个射流以与腔的壁相同的预定距离分裂成墨滴。 所述致动器设置在所述空腔相对于所述壁的相对侧上，包括振动器，所述振动器沿着所述空腔的长度被至少部分地分成至少两个部分，并且包括背离所述空腔设置的振动器 并且固定到并桥接振动器至少部分分割的部件。 振动器被插入到背衬构件和空腔之间。

公开(公告)号：US06467476B1

公开(公告)日：2002-10-22

申请号：US09574168

申请日：2000-05-18

申请人： Yehuda Ivri ,  Cheng H. Wu

发明人： Yehuda Ivri ,  Cheng H. Wu

IPC分类号： A61M1600

CPC分类号： B41J2/025 ,  A61M11/005 ,  A61M15/0085 ,  A61M15/009 ,  A61M2016/0021 ,  A61M2016/0039 ,  A61M2205/3306 ,  B05B12/08 ,  B05B17/0646 ,  B05B17/0684

摘要： The invention provides methods and apparatus for nebulizing liquids. In one exemplary embodiment, an apparatus is provided which comprises a thin shell member having a front surface, a rear surface, and a plurality of apertures extending therebetween. The apertures are tapered to narrow from the rear surface to the front surface. A liquid supplier is further provided which delivers a predetermined unit volume of liquid to the rear surface. A vibrator vibrates the thin shell member to eject liquid droplets from the front surface of the thin shell member.

摘要翻译： 本发明提供了雾化液体的方法和装置。 在一个示例性实施例中，提供了一种装置，其包括具有前表面，后表面和在其间延伸的多个孔的薄壳构件。 孔从后表面到前表面逐渐变细。 还提供了一种液体供应器，其将预定单位体积的液体输送到后表面。 振动器振动薄壳构件以从薄壳构件的前表面喷射液滴。