WO2008050434A1 - Appareil d'éjection de gouttelette, procédé d'éjection de gouttelette au moyen dudit appareil et unité de rétention de liquide - Google Patents

Appareil d'éjection de gouttelette, procédé d'éjection de gouttelette au moyen dudit appareil et unité de rétention de liquide Download PDF

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Publication number
WO2008050434A1
WO2008050434A1 PCT/JP2006/321397 JP2006321397W WO2008050434A1 WO 2008050434 A1 WO2008050434 A1 WO 2008050434A1 JP 2006321397 W JP2006321397 W JP 2006321397W WO 2008050434 A1 WO2008050434 A1 WO 2008050434A1
Authority
WO
WIPO (PCT)
Prior art keywords
storage unit
liquid storage
liquid
head
droplet discharge
Prior art date
Application number
PCT/JP2006/321397
Other languages
English (en)
Japanese (ja)
Inventor
Yoshinori Adachi
Takayoshi Fujimoto
Hideo Matsutani
Original Assignee
Cluster Technology Co., Ltd.
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 Cluster Technology Co., Ltd. filed Critical Cluster Technology Co., Ltd.
Priority to JP2008514991A priority Critical patent/JP4235758B2/ja
Priority to PCT/JP2006/321397 priority patent/WO2008050434A1/fr
Publication of WO2008050434A1 publication Critical patent/WO2008050434A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor

Definitions

  • Droplet discharge device Droplet discharge method using the droplet discharge device, and liquid storage unit
  • the present invention relates to a droplet discharge device, a droplet discharge method using the droplet discharge device, and a liquid storage unit.
  • the ink jet recording apparatus described in Patent Document 1 uses a panel member that holds an ink cartridge to raise and lower the installation height of the ink cartridge in response to a change in the weight of the ink, thereby maintaining a constant ink liquid level.
  • the ink is stably supplied by maintaining the temperature of the ink.
  • the ink pressure holding system described in Patent Document 2 supports one or a plurality of ink storage containers mounted on and supported by a spring that is biased against the weight of ink in the container, and responds to a decrease in ink.
  • ink is discharged at a constant pressure while keeping the ink level constant.
  • the inkjet pen described in Patent Document 3 has an absorbent foam material such as polyurethane foam that stores ink for sending ink to the inkjet printer head in a housing, and the capillary force of the foam. In this way, ink is stored and discharged.
  • an absorbent foam material such as polyurethane foam that stores ink for sending ink to the inkjet printer head in a housing, and the capillary force of the foam. In this way, ink is stored and discharged.
  • the ink is absorbed by this foam, a liquid containing fine particles cannot be ejected, and the compatible liquid types are limited.
  • Patent Document 1 Japanese Patent Laid-Open No. 05-185601
  • Patent Document 2 JP-A-10-323994
  • Patent Document 3 JP-A 63-87242 Disclosure of the invention
  • the first object of the present invention is to use a droplet discharge device and a droplet discharge device capable of stabilizing the droplet discharge state by making the pressure state uniform.
  • An object is to provide a method for discharging a liquid drop and a liquid storage unit.
  • a second object of the present invention is to provide a droplet discharge device that can easily change and use various liquid types without being restricted by the liquid type, and a droplet discharge device that uses the droplet discharge device. It is to provide a discharge method and a liquid storage unit.
  • the droplet discharge device is characterized by a head for discharging droplets of a nozzle force by driving an electric drive element, and a head for storing the liquid.
  • a liquid storage unit to be supplied to the liquid storage unit, and the liquid storage unit has an elongated channel disposed substantially horizontally.
  • the liquid storage unit is a flow path, bubbles are generated and pressure fluctuations are difficult to occur. Also, even if the liquid is reduced, the pressure is constant, and stable discharge is possible regardless of the type of ink. .
  • the liquid storage unit is detachable from the head.
  • the liquid storage unit may include a flow path member that forms the flow path and a case that stores the flow path member, and the flow path member may be detachable and replaceable.
  • the liquid storage unit may include a tube that forms the flow path and a case that stores the tube, and the case stores the tube so that the tube is positioned on substantially the same plane.
  • the case includes a joint that connects the tube and the head.
  • the joint is tubular having a central axis in a direction perpendicular to the plane direction of the support flat plate of the case supporting the tube, and the central axis of the joint portion is oriented in the plane direction of the flat plate after connection with the tube. It should be bendable.
  • the liquid storage unit may be one in which the flow path is formed by providing a partition wall between a pair of flat plates. Further, it is desirable that the liquid storage unit can visually recognize the terminal position of the stored liquid in the external force in the flow path. Further, the upper surface of the liquid storage unit It is preferable that a scale for measuring the end position is attached to.
  • An anti-rotation means for preventing the relative rotation of the liquid storage unit and the head may be provided at a connection portion between the liquid storage unit and the head. Further, another joint for connecting a liquid supply device is provided at the other end of the connection portion between the liquid storage unit and the head.
  • the liquid storage unit is connected to a position near the nozzle forming surface of the head. This is a force that can prevent fluctuations in pressure conditions due to fluctuations in liquid specific gravity by reducing the difference in height between the storage unit and the nozzle.
  • the liquid storage unit is disposed below the electric cable for the electric drive element.
  • a feature of the droplet discharge method using the droplet discharge device according to any one of the above features is that the electric drive element is driven to discharge the droplet.
  • a feature of the liquid storage unit used in the droplet discharge device is that it is connected to the head by a detachable joint.
  • liquid types having different specific gravity and states can be easily discharged under stable conditions. Furthermore, various liquid types can be easily changed without being restricted by the liquid type.
  • Fig. 1 is a plan view of the liquid storage unit in a state where an upper part of a case is opened.
  • FIG. 2 is a longitudinal sectional view of a droplet discharge device, (a) is an overall view, (b) is a sectional view of an inlet when a syringe is used, and (c) is an inlet when a pipette is used.
  • FIG. 2 is a longitudinal sectional view of a droplet discharge device, (a) is an overall view, (b) is a sectional view of an inlet when a syringe is used, and (c) is an inlet when a pipette is used.
  • FIG. 3 is a cross-sectional view of the case after molding.
  • FIG. 4 is a cross-sectional view of a tube.
  • FIG. 5 is a front view of the vicinity of the head joint.
  • FIG. 6 is a perspective view of a head according to a second embodiment.
  • FIG. 7 is a view corresponding to FIG. 1 according to the third embodiment.
  • FIG. 8 is a view corresponding to FIG. 1 according to the fourth embodiment.
  • FIG. 9 is a view corresponding to FIG. 1 according to the fifth embodiment.
  • FIG. 10 is a longitudinal sectional view of a liquid storage unit according to a fifth embodiment.
  • FIG. 11 is a view corresponding to FIG. 1 according to the sixth embodiment.
  • FIG. 12 is a longitudinal sectional view of a liquid storage unit according to a sixth embodiment.
  • FIG. 13 is a liquid storage unit according to the seventh embodiment, (a) is a plan view, and (b) is a longitudinal sectional view.
  • (C) is a front view.
  • the droplet discharge device 1 includes a head 10 and a liquid storage unit 20 that are detachable from each other.
  • the head 10 is formed by fixing a nozzle 13, a nozzle side flow path 14 and an electric drive element 12 to a bracket 11 made of resin.
  • this electric drive element For example, PZT (lead zirconate titanate) is used for expansion and contraction driven by the drive current from the electric cable 18 provided at the top of the bracket 11.
  • the vibrating film forming the part is vibrated to discharge droplets.
  • the liquid storage unit 20 that keeps the droplet discharge state constant is configured to suppress the fluctuation of the supply pressure of the liquid to the nozzle 13 of the head 10 as small as possible.
  • the liquid storage unit 20 includes a case 30 and a tube 41 as a flow path member 40 that forms a flow path F by being attached to and detached from the case 30.
  • the case 30 includes a case lower part 31 and a case upper part 32, and an injection joint 33 and a head joint 36 which are bent continuously with respect to the case lower part 31, and these parts are integrally formed by injection molding of resin.
  • the case lower part 31 and the case upper part 32 are opened and closed continuously by a hinge 30a and closed by an engaging part 31b.
  • the support plate 31a which is the bottom surface of the case lower part 31, is a flat surface, and the support plate 31a is maintained horizontal in the connected state with the head 10 via the head joint 36 and the rotation preventing means 39.
  • the flow path F in the tube 41 supported on 31a is kept horizontal.
  • the pressure acting on the nozzle 13 and the nozzle side flow path 14 is kept constant.
  • the tube 41 is spirally wound on the support flat plate 31a, and the position thereof is held by tube guides 31c protruding upward at a plurality of locations from the support flat plate 31a.
  • the tube 41 is made of a transparent or translucent bendable resin material, and forms a flow path F having a substantially constant diameter as shown in FIG.
  • the liquid LQ stored inside forms an end position E by surface tension, and the end position E moves along the flow path F as the liquid LQ decreases. Since the flow path F is kept horizontal due to the above-mentioned configuration and the action of gravity is constant, as long as the dynamic liquid LQ continues to operate, a stable pressure that does not generate bubbles in the liquid LQ acts on the nozzle 13 It becomes.
  • the case upper portion 32 also includes an upper plate 32a that faces the support flat plate 3la substantially in parallel.
  • the force that indicates the position when the case upper part 32 is closed. From the upper plate 32a, the force is directed downward in the closed state, and three force forces protrude from the upper plate 32a. It has a tube presser 32c to be fixed.
  • the upper plate 32a is arranged along the spiral of the tube 41 so that the upper side of the case 32, that is, the upper force of the case 30, also causes the liquid in the tube 41 to end.
  • a plurality of scales 32d for knowing the standard of the end position E are formed at appropriate intervals.
  • the scale 32d can be formed by printing, changing the shape of the upper plate 32a, etc.
  • the upper plate 32a is preferably at least transparent or translucent. Further, when the upper plate 32a is non-transparent, the scale 32d may be transparent.
  • the injection joint 33 and the head joint 36 are swingably connected to the lower case portion 31 by hinges 33a and 36a.
  • the center axis Lla, L2a of the tube port 34 and the tube port 37 is orthogonal to the plane of the support plate 31a as shown in Fig. 3.
  • the tube port 34 and the tube port 37 are connected to each other. Insert the inlet 42 and head opening 43 of the tube 41 and swing 90 degrees to align the center axis Lla, L2a of the mouth with the case side center axes L2a, L2b parallel to the support plate 31a as shown in Fig. 2. .
  • the tube 41 By swinging the injection joint 33 and the head joint 36, the tube 41 can be attached and detached, and the tube port 34, the injection port 35, the tube port 37, and the head port 38 in the state shown in FIG. Can be formed easily.
  • the injection joint 33 and the head joint 36 are fitted to the lower case 31 on both sides, and the upper projection 33b and the projection 36b are fitted to the upper case 32 in the closed state of the upper case 32. The position is fixed.
  • a syringe port 35a and a pipette port 35b that are gradually narrowed in diameter are formed inside the cylindrical injection port 35.
  • the syringe tip 101 is fitted into the syringe port 35a
  • the pipette tip 102 is fitted into the pipette port 35b.
  • the flow path of the tube port 34 is narrower than that of the pipette port 35b, and these configurations prevent bubbles from entering the flow path F.
  • the head joint 36 which is a connecting means to the head 10 has a cylindrical head 38 projecting outward, and as shown in Figs. Has a tapered recess 38a.
  • the rear surface of the bracket 11 includes a recess 15 that receives the head port 38 and a protrusion 16 that fits into the recess 38a. Then, by fitting the head port 38, the recess 15, and the protrusion 16, the flow path F of the tube 41 is communicated with the nozzle-side flow path 14 of the head 10 in a confidential state.
  • a pair of protrusions 39 are formed below the head opening 38 of the head joint 36.
  • the anti-rotation means 39 is configured to prevent relative rotation.
  • the winding part which is the main part of the tube 41
  • the winding part is kept horizontal on the support flat plate 31a, so that pressure fluctuations on the nozzle 13 can be suppressed.
  • the pressure difference due to partial elevation at the tube port 37 and the head port 38 does not affect the nozzle 13 in pressure.
  • the nozzle forming surface P1 where the nozzle 13 is located is close to the surface of the support plate 31a where the main part of the tube 41 is located. Thereby, the pressure difference between the tube 41 and the nozzle forming surface P1 is further suppressed.
  • liquid LQ is supplied from the inlet 35 to the liquid storage unit 20 having the above-described configuration until it reaches the head port 38 side with the liquid supply device 100, and the liquid storage unit 20 is connected to the head via the head port 38. Connect to 10.
  • the liquid LQ can be stored and tested easily by replacing the entire liquid storage unit 20 including the case 30 which only needs to be replaced.
  • the pair of protrusions 39 a is used as the rotation preventing means 39.
  • a pair of projecting pieces 39b project in the radial direction of the head port 38, and a cut 15a is formed in the head to fit the pair of projecting pieces 39b.
  • the rotation preventing means 39 for preventing these relative rotations may be configured.
  • the tube 41 constituting the flow path member 40 is wound, but the arrangement of the tube 41 and the flow path F is not limited to this.
  • the tube 41 may be arranged in a straight line as shown in FIG. 7, or may be arranged in a meandering shape as shown in FIG.
  • the force of the flow path member 40 constituted by the tube 41 may be configured as a flow path module 44 in which a meandering flow path F is formed as shown in FIGS. ,.
  • the flow path module 44 can be configured as a molded product of synthetic resin or glass, for example, and at least the upper surface is preferably made of a transparent or translucent material that can be visually observed.
  • Injection The joint 33 and the head joint 36 and the flow channel module 44 are connected to each other by fitting the elbow 34a and the elbow 37a into the holes formed in the flow channel module 44, respectively.
  • the flow channel module 45 configured as the flow channel member 40, the injection joint 33, the head joint 36, and the elbow 34b, elbow 37b, and packing fixed to the lid of the case 30 It is connected via 34c and packing 37c.
  • the flow path member 40 is configured as a rigid straight tubular flow path module 46.
  • the upper surface of the case 30 is released, and a pair of notches 3 Oc are formed on the left and right.
  • the injection joint 33 and the head joint 36 are joined to both ends of the flow path module 46 with the packing 34d and the packing 37d interposed therebetween, and the injection joint 33 and the head joint 36 are fitted into the notches 30c by pressing downward from above.
  • the step force of the injection joint 33 and the distance to the step portion of the head joint 36 are formed slightly larger than the inner surface distance in the vicinity of the pair of notches 30c in the case 30, and knocking 34d and packing 37d.
  • the liquid droplets are used so as to be dropped from the nozzles in the direction of gravity downward.
  • the nozzle does not necessarily have to be directed downward, and may be used to eject droplets in the horizontal direction or upward.
  • a piezoelectric element is used as the electric drive element.
  • a resistance heating element that generates a discharge pressure by boiling a liquid may be used.
  • the present invention can be used for chemical experiments, biotechnology experiments, medical diagnosis, electronics production, and the like.
  • Many kinds of liquids can be used.
  • a liquid containing fine particles such as DNA-protein / fungal biomaterials, fluorescent fine particles, conductive fine particles, resin fine particles, ceramic fine particles, pigment dyes and the like can be used. It is also suitable for using small amounts of liquids with high surface tension, such as distilled water, or expensive liquids.
  • electrode formation and microlenses can be created.
  • droplets By discharging, for example, droplets can be placed at a plurality of predetermined locations such as a biomaterial chip, and it can also be used for odor generation by dispensing and spraying, formulation adjustment by adjusting the discharge amount, film formation, and the like.

Abstract

L'invention concerne un appareil d'éjection de gouttelette qui permet non seulement d'uniformiser les conditions de pression afin de stabiliser l'état des gouttelettes éjectées mais également de changer facilement l'utilisation de différents types de liquides sans aucune limitation par types de liquides; un procédé d'éjection de gouttelettes au moyen dudit appareil d'éjection de gouttelettes; et une unité de rétention de liquide appropriée. L'appareil de l'invention comprend une tête (10) qui permet d'éjecter des gouttelettes à partir d'une buse (13) par entraînement d'un dispositif d'entraînement électrique (12) et une unité de rétention de liquide (20) qui permet non seulement de retenir un liquide mais également d'envoyer ce dernier vers la tête (10). L'unité de rétention de liquide (20) comprend un canal d'écoulement allongé (40) disposé dans un sens sensiblement horizontal.
PCT/JP2006/321397 2006-10-26 2006-10-26 Appareil d'éjection de gouttelette, procédé d'éjection de gouttelette au moyen dudit appareil et unité de rétention de liquide WO2008050434A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008514991A JP4235758B2 (ja) 2006-10-26 2006-10-26 液滴吐出装置及び液滴吐出装置を用いた液滴の吐出方法並びに液体貯留ユニット
PCT/JP2006/321397 WO2008050434A1 (fr) 2006-10-26 2006-10-26 Appareil d'éjection de gouttelette, procédé d'éjection de gouttelette au moyen dudit appareil et unité de rétention de liquide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/321397 WO2008050434A1 (fr) 2006-10-26 2006-10-26 Appareil d'éjection de gouttelette, procédé d'éjection de gouttelette au moyen dudit appareil et unité de rétention de liquide

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WO2008050434A1 true WO2008050434A1 (fr) 2008-05-02

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WO (1) WO2008050434A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013543395A (ja) * 2010-09-22 2013-12-05 クローヴァーシールド，インコーポレイテッド 治療用気化器
USD752807S1 (en) 2013-02-19 2016-03-29 1Ready, Llc Therapeutic vaporizer
USD799691S1 (en) 2015-09-03 2017-10-10 1Ready, Llc Tray for a therapeutic vaporizer
US10926047B2 (en) 2010-09-22 2021-02-23 Robert Irving Pratt, JR. Transversely-activated valve for a therapeutic vaporizer bag attachment system
US11577035B2 (en) 2010-09-22 2023-02-14 Robert Irving Pratt, JR. Therapeutic vaporizer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6364750A (ja) * 1986-09-08 1988-03-23 Hitachi Ltd インクジエツトプリンタ−用ヘツド
JPH05444U (ja) * 1991-06-22 1993-01-08 三田工業株式会社 インクジエツトプリンタのインク供給装置
JPH05116277A (ja) * 1991-10-25 1993-05-14 Canon Inc インクジエツト記録装置
JPH09131897A (ja) * 1995-07-29 1997-05-20 Seiko Epson Corp インクジェット記録装置におけるインクカートリッヂ並びにそのインク消費状況検出表示装置
JP2002067352A (ja) * 2000-08-30 2002-03-05 Brother Ind Ltd インクジェット記録装置
JP2006142752A (ja) * 2004-11-24 2006-06-08 Canon Inc インクジェット記録ヘッドおよびこれを用いたインクジェット記録装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6364750A (ja) * 1986-09-08 1988-03-23 Hitachi Ltd インクジエツトプリンタ−用ヘツド
JPH05444U (ja) * 1991-06-22 1993-01-08 三田工業株式会社 インクジエツトプリンタのインク供給装置
JPH05116277A (ja) * 1991-10-25 1993-05-14 Canon Inc インクジエツト記録装置
JPH09131897A (ja) * 1995-07-29 1997-05-20 Seiko Epson Corp インクジェット記録装置におけるインクカートリッヂ並びにそのインク消費状況検出表示装置
JP2002067352A (ja) * 2000-08-30 2002-03-05 Brother Ind Ltd インクジェット記録装置
JP2006142752A (ja) * 2004-11-24 2006-06-08 Canon Inc インクジェット記録ヘッドおよびこれを用いたインクジェット記録装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013543395A (ja) * 2010-09-22 2013-12-05 クローヴァーシールド，インコーポレイテッド 治療用気化器
US10926047B2 (en) 2010-09-22 2021-02-23 Robert Irving Pratt, JR. Transversely-activated valve for a therapeutic vaporizer bag attachment system
US11077278B2 (en) 2010-09-22 2021-08-03 Robert Irving Pratt, JR. Therapeutic vaporizer
US11577035B2 (en) 2010-09-22 2023-02-14 Robert Irving Pratt, JR. Therapeutic vaporizer
USD752807S1 (en) 2013-02-19 2016-03-29 1Ready, Llc Therapeutic vaporizer
USD779072S1 (en) 2013-02-19 2017-02-14 1Ready, Llc Therapeutic vaporizer insert
USD799691S1 (en) 2015-09-03 2017-10-10 1Ready, Llc Tray for a therapeutic vaporizer

Also Published As

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JP4235758B2 (ja) 2009-03-11

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