WO2008050436A1 - Appareil de décharge de gouttelettes et tête de décharge de gouttelettes et procédé de fourniture de gouttelettes - Google Patents

Appareil de décharge de gouttelettes et tête de décharge de gouttelettes et procédé de fourniture de gouttelettes Download PDF

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Publication number
WO2008050436A1
WO2008050436A1 PCT/JP2006/321402 JP2006321402W WO2008050436A1 WO 2008050436 A1 WO2008050436 A1 WO 2008050436A1 JP 2006321402 W JP2006321402 W JP 2006321402W WO 2008050436 A1 WO2008050436 A1 WO 2008050436A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
droplet discharge
nozzle
droplet
heads
Prior art date
Application number
PCT/JP2006/321402
Other languages
English (en)
Japanese (ja)
Inventor
Yoshinori Adachi
Kenji Koizumi
Kazumasa Horiuchi
Takayoshi Fujimoto
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 JP2007541546A priority Critical patent/JP4255505B2/ja
Priority to PCT/JP2006/321402 priority patent/WO2008050436A1/fr
Publication of WO2008050436A1 publication Critical patent/WO2008050436A1/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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework
    • 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
    • B41J2/17503—Ink cartridges
    • B41J2/1752—Mounting within the printer

Definitions

  • Droplet ejection apparatus Droplet ejection apparatus, droplet ejection head, and droplet supply method
  • the present invention relates to a droplet discharge device, a droplet discharge head, and a droplet supply method. More specifically, at least one head, an electric driving element held by the head, and a support for the head are provided, and droplets are ejected from a nozzle to a predetermined position by driving the electric driving element.
  • the present invention relates to a droplet discharge device, a droplet discharge head, and a droplet supply method.
  • the present inventors have adopted a head that discharges liquid droplets by means of an electric drive element, similarly to an ink jet printer.
  • Patent Document 1 JP 2002-67343
  • Patent Document 2 JP 2004-195689
  • the present invention discharges droplets in a stable state to a plurality of locations at a predetermined pitch while maintaining a uniform height among a plurality of heads. It is an object of the present invention to provide a droplet discharge device, a droplet discharge head, and a droplet supply method capable of this.
  • a feature of the droplet discharge device includes at least one head, an electric drive element held by the head, and a support for the head.
  • the head In the configuration in which a droplet having a nozzle force is ejected to a predetermined position by driving an electric drive element, the head has a pair of side surfaces with the nozzle formation surface as a bottom surface, and each side surface is in contact with a recess and another head.
  • a pair of contact surfaces of the head are parallel to each other, and the support is provided in the recess and includes a support piece for supporting the head from the nozzle side in the ejection direction,
  • a head group in which the nozzles are arranged at a predetermined pitch and height can be formed by arranging the heads in contact with each other on the contact surface.
  • the heads are arranged by bringing the contact surfaces into contact with each other, an arbitrary number of nozzles can be arranged at a predetermined pitch, and the degree of freedom in arrangement is high. Further, no other member is interposed between the contact surfaces, and the pitch accuracy between the nozzles can be maintained.
  • the support piece of the support tool supports the head along the discharge direction with the recess, the nozzle height position between the multiple heads can be set appropriately, and the landing status of the droplet can be stabilized. is there.
  • the distance between the two sides is reduced as the front part of the heads connecting the two side surfaces is directed toward the front part side, and when a plurality of heads are arranged, another head is placed between the front part of each group of heads. It is desirable to be able to fit the front part of the group head.
  • the head may have a protrusion that protrudes in the ejection direction in the recess and contacts the support piece.
  • an ink supply path for supplying ink to the nozzles may be extended to the opposite side of the front part of the head connecting the both side surfaces.
  • an electric cable for the nozzle drive component is extended to the side opposite to the front portion of the head connecting the both side surfaces.
  • a feature of the liquid droplet ejection head according to the present invention is that the concave portion used in the liquid droplet ejection device described in any one of the above characteristics is provided.
  • a droplet supply method is characterized in that a liquid is placed at a predetermined position using the head group in the droplet discharge device according to any one of the above features. It is also to supply drops with multiple nozzle forces.
  • the droplets in a stable state can be discharged by appropriately setting the height position of the nozzle. I came out. As a result, an arbitrary number of nozzles can be arranged with high precision at a predetermined pitch, and the degree of freedom of arrangement can be improved. It became possible to do. Moreover, since the heads are independent of each other, it is possible to replace the defective head, and it is also possible to replace the head according to the type of liquid used.
  • FIG. 1 is a front view of a droplet discharge device according to the present invention.
  • FIG. 2 is a perspective view of a head.
  • FIG. 3 is a rear view of FIG.
  • FIG. 4 is a rear view of the droplet discharge device in a state where two head groups are combined.
  • FIG. 5 is a side view showing a state where a single head is mounted on a support.
  • FIG. 6 is a front view of FIG.
  • FIG. 7 is a view corresponding to FIG. 1, showing a second embodiment.
  • FIG. 8 is a rear view of the head in the second embodiment.
  • FIG. 9 is a view corresponding to FIG. 1 and showing a comparative example.
  • FIG. 10 is a longitudinal sectional view of a mold.
  • a plurality of heads 20 as shown in FIG. 2 are arranged side by side and fixed to the support 10, thereby configuring the droplet discharge device 1.
  • the head 20 includes a piezoelectric element which is a kind of an electric drive element (not shown) inside the bracket 20x, introduces the liquid supplied from the liquid supply port 40 into a pressure chamber (not shown), and vibrates the film forming the pressure chamber with the piezoelectric element. By doing so, droplets are ejected in the ejection direction F from the nozzles 23 formed on the bottom surface 22.
  • the liquid droplets are ejected from the nozzle 23 and landed in a predetermined state on a predetermined position of the workpiece 100 in which various shapes are simply displayed. Therefore, as shown in FIG. 4, the pitch A between the adjacent nozzles 23 and 23 is required to be a predetermined interval. In addition, since the droplets are also affected by gravity, the height H from the workpiece 100 is also required to be the same between the adjacent heads 20 at the position of the nozzle 23 forming surface.
  • the bracket 20x of the head 20 is formed by combining parts formed by injection molding of a resin material or the like.
  • Concave portions 27 are formed in the pair of side surfaces 26 between the top surface 21 and the bottom surface 22 on both sides of the bottom surface 22.
  • a contact surface 30 parallel to each other is formed between the opposing side surfaces 26, and a second recess 31 is formed in the middle in the front-rear direction of each contact surface 30.
  • a front side slope 24a is formed between the front face 24 and each side face 26 at a 135 ° angle with the contact face 30 and a front lower slope 24b is provided between the bottom face 22 and the front face 24.
  • a pair of contact surfaces 30 in each head 20 are configured in parallel with each other and have a predetermined positional relationship with the nozzle 23.
  • al a2.
  • the pitch A between the adjacent nozzles 23 can be set to the same predetermined value.
  • a cylindrical projection 29 is projected in the discharge direction F from a step surface 28 that is a step portion between the side surface of the recess 27 and the contact surface 30.
  • the protrusion 29 is preferably cylindrical, or can be formed into a rectangular cylinder, so that the position of the lower surface of the protrusion 29 can be adjusted by replacing the pin in the injection mold. It is easy and the height adjustment at the contact with the support 10 is simple and accurate.
  • the mold 110 includes an upper mold 101 and a lower mold 102.
  • the upper mold 102 is formed by fitting a pin 104 into the cylindrical hole 103a of the base mold 103, and filling the cavity 105 with resin.
  • the insertion position of the pin 104 with respect to the cylindrical hole 103a is easy to adjust, and the distance H between the lower end of the cylindrical hole 103a and the lower end of the pin 104 is the height of the projection 29.
  • each front lateral slope 24a and the nozzle 23 in each head 20 is also a predetermined positional relationship.
  • the front lateral slope 24a is inclined so as to be closer to each other toward the tip side.
  • the front lateral slopes 24a of the adjacent heads 20 are formed to form a recess 24c, and the front surfaces 24 of the head groups Gl and G2 facing each other are received and fitted.
  • the pitch B of each nozzle 23 between the different head groups G1 and G2 can also be arranged at a predetermined interval.
  • the rear surface 25 is provided with a liquid supply port 40 that supplies liquid to the nozzle 23.
  • the liquid supply port 40 projects a protrusion 42 having a supply hole 43 connected to a cartridge (not shown) at the center of the recess 41.
  • the recess 41 is provided with a fitting portion 44 that prevents relative rotation with the cartridge.
  • a cable 50 for supplying driving power to the previous piezoelectric element is provided above the liquid supply port 40.
  • the support 10 includes a frame main body 11 made of a metal material, hard grease, or the like, and a pair of tightening screws 15 for fixing the head 20.
  • a plurality of support pieces 12 protrude forward from the connecting portion 14 extending left and right of the frame body 11 at a predetermined interval, and a pair of side pieces 13 protrude upward from the left and right of the connecting portion 14.
  • the upper surface of the support piece 12 is uniform, and the height H of each nozzle 23 is kept the same by contact with the protrusion 29 which is inserted between the recesses 27 and keeps the relationship with the nozzle 23 at a predetermined level.
  • the position of the connecting portion 14 between the support pieces 12 is the same position, and the depth position of the nozzle 23 is kept the same by contacting the rear surface 25 of each head 20. Then, the contact surfaces 30 of the plurality of heads 20 indicated by reference numerals 20a to 20e are brought into contact with each other, and the knob 15b of the tightening screw 15 having the screw portions 15a screwed to the left and right side pieces 13 is tightened and rotated. Then, these heads 20 are fixed on the support 10 at a predetermined pitch A of the nozzles 23 to form a head group G.
  • two nozzle rows are formed by combining the head groups Gl and G2 formed as described above so as to face each other.
  • the position of the front lateral slope 24a and the nozzle 23 can be made different, and al, a2, bl, b2 can be made different.
  • the support 10 supports the head 20 in the vertical position direction by engaging the protrusion 29 on the tip 17c of the side plate 17b from which both side forces of the block 17a supported by the support column 17d are also projected downward. ing. Further, the rear surface 25 or the front surface 24 is brought into contact with the ridge 17e, and the clamp 20b of the tightening screw 18 screwed into the block 17a with the screw portion 18a is fastened and fixed, so that the head 20 is attached to the support tool 10. Fix it.
  • the front lower slope 24b secures a field of view for facilitating observation of the discharge state of the nozzle 23 from an oblique position.
  • each head 20 further has a pair of second contact surfaces 32 that are parallel to each other below the recess 27. Since the distance between the pair of second contact surfaces 32 is wider than the distance between the pair of contact surfaces 30, the heads 20 are in contact with each other at the lower part thereof and are fastened and fixed by the fastening screws 15.
  • FIG. 9 is a comparative example, and the support portion 210 of the support tool 200 has the projections 29 abutted against the front and rear rail-shaped side contact portions 220 formed on the support piece 212 to define the left and right positions thereof. ing. Since the contact surfaces 30 do not contact each other, the manufacturing accuracy of the support 200 is also required, so the above embodiment is superior.
  • the vertical direction in the above embodiment is for convenience of description, and merely defines the relative positional relationship, and does not necessarily mean the direction of gravity.
  • the discharge direction is opposite to the gravitational direction or oblique, the necessity and effect of the distance (height) of the work force of the plurality of heads and the pitch between the nozzles 23 are as described above. Street.
  • 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.
  • liquid droplets for example, in addition to placing liquid droplets at a plurality of predetermined locations such as biomaterial chips, it can also be used for odor generation by dispensing, spraying, blending adjustment by adjusting discharge amount, film formation, etc. wear.

Landscapes

  • Coating Apparatus (AREA)
  • Ink Jet (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention porte sur un appareil de décharge de gouttelettes, et sur une tête de décharge de gouttelettes capable de décharger des gouttelettes stables sur plusieurs secteurs avec un pas prédéterminé en maintenant une même hauteur unifiée entre les différentes têtes. L'invention porte également sur un procédé de fourniture des gouttelettes. L'appareil de décharge comprend: au moins une tête (20) munie d'une buse (23) de décharge d'une gouttelette sur un secteur prédéterminée par actionnement d'un élément électrique de commande; et un support (10) de tête (20). Une tête (20) présente une paire de surfaces latérales (26) et une base sur laquelle est formé une buse (23), et chacune des surfaces latérales (26) inclut un évidement et une surface (30) butant contre une autre tête (20). Les deux surfaces (30) butées de la tête (20) sont parallèle entre elles. Le support (10), placé à l'intérieur du de l'évidement, présente une partie soutenant la tête (20) à partir du côté de la buse (23) situé dans la direction de décharge. En disposant les têtes (20) pour que leurs surfaces (30) butent les unes contre les autres, on forme un groupe de têtes (G) dans lequel les buses (23) sont réparties avec un pas et une hauteur (H) prédéterminés.
PCT/JP2006/321402 2006-10-26 2006-10-26 Appareil de décharge de gouttelettes et tête de décharge de gouttelettes et procédé de fourniture de gouttelettes WO2008050436A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007541546A JP4255505B2 (ja) 2006-10-26 2006-10-26 液滴吐出装置及び液滴吐出用ヘッド並びに液滴の供給方法
PCT/JP2006/321402 WO2008050436A1 (fr) 2006-10-26 2006-10-26 Appareil de décharge de gouttelettes et tête de décharge de gouttelettes et procédé de fourniture de gouttelettes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/321402 WO2008050436A1 (fr) 2006-10-26 2006-10-26 Appareil de décharge de gouttelettes et tête de décharge de gouttelettes et procédé de fourniture de gouttelettes

Publications (1)

Publication Number Publication Date
WO2008050436A1 true WO2008050436A1 (fr) 2008-05-02

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PCT/JP2006/321402 WO2008050436A1 (fr) 2006-10-26 2006-10-26 Appareil de décharge de gouttelettes et tête de décharge de gouttelettes et procédé de fourniture de gouttelettes

Country Status (2)

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JP (1) JP4255505B2 (fr)
WO (1) WO2008050436A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02126455U (fr) * 1989-03-24 1990-10-18
JPH05338210A (ja) * 1992-06-11 1993-12-21 Olympus Optical Co Ltd マルチヘッドプリンタ
JPH1044448A (ja) * 1996-07-30 1998-02-17 Canon Inc インクジェット記録ヘッド及びインクジェット記録装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02126455U (fr) * 1989-03-24 1990-10-18
JPH05338210A (ja) * 1992-06-11 1993-12-21 Olympus Optical Co Ltd マルチヘッドプリンタ
JPH1044448A (ja) * 1996-07-30 1998-02-17 Canon Inc インクジェット記録ヘッド及びインクジェット記録装置

Also Published As

Publication number Publication date
JP4255505B2 (ja) 2009-04-15
JPWO2008050436A1 (ja) 2010-02-25

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