CN100431840C - Liquid-jet head, liquid-jet apparatus and method for producing liquid-jet head - Google Patents
Liquid-jet head, liquid-jet apparatus and method for producing liquid-jet head Download PDFInfo
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- CN100431840C CN100431840C CNB2006101123818A CN200610112381A CN100431840C CN 100431840 C CN100431840 C CN 100431840C CN B2006101123818 A CNB2006101123818 A CN B2006101123818A CN 200610112381 A CN200610112381 A CN 200610112381A CN 100431840 C CN100431840 C CN 100431840C
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Abstract
A liquid-jet head (1), including: a plurality of head bodies (200) each furnished with a nozzle plate (208) having a plurality of nozzles (207) formed therein; a joining member, adhered to the nozzle plate via an adhesive agent, for binding and fixing the plurality of head bodies (200); an opening (301) formed in a region of the joining member (300) corresponding to the nozzles; and a protrusion (311) formed in an edge portion of the opening facing the nozzle plate (208), and protruding toward the nozzle plate (208), wherein when the joining member (300) is joined to the nozzle plate (208) via the adhesive agent, the protrusion (311) is allowed to bite into the nozzle plate (208).
Description
Technical field
The present invention relates to particularly constitute the part of the pressure generating chamber that is communicated with nozzle and ink jet recording head and the inkjet recording device that makes the drops out from nozzles ejection by the displacement that is arranged on the piezoelectric element on this oscillating plate with oscillating plate from running through the jet head liquid and the liquid injection apparatus of the nozzle ejection drop that is arranged on the nozzle plate.
In addition, the present invention relates to from the manufacture method of the jet head liquid that runs through the nozzle ejection drop that is arranged on the nozzle plate, particularly constitute the part of the pressure generating chamber that is communicated with nozzle and make the manufacture method of the ink jet recording head that drops out from nozzles sprays by the displacement that is arranged on the piezoelectric element on this oscillating plate with oscillating plate.
Background technology
In the past, known had by being exerted pressure to liquid by piezoelectric element or heater element etc., thereby from the jet head liquid of nozzle ejection drop, represent example can exemplify out the ink jet recording head of ejection ink droplet as it.In addition; this ink jet recording head for example has following structure: have the ink chamber's main body that is used for the pressure inverting element of exerting pressure to ink etc.; joint has the nozzle plate of the nozzle of ejection ink droplet; on this nozzle plate, for example baffle or nozzle casing (for example with reference to patent documentation 1) as attachment are arranged by adhesive bond.
In this ink jet recording head, the metal parts that constitutes ink jet recording head can be because from recording medium such as record-paper or external static electrification and charged, thus the drive IC etc. that is used in the pressure inverting element of exerting pressure etc. or is used to drive this pressure inverting element etc. to ink have ruined may.When nozzle plate is when being formed by metal material etc., especially be easy to generate this problem.For example; in the ink jet recording head described in the patent documentation 1; the baffle or the contact site of nozzle casing outside bonding part that join on the nozzle plate by adhesive are contacted with nozzle plate, make conducting between baffle or nozzle casing and the earth connection, thereby it is charged to suppress nozzle plate.
In ink jet recording head in the past; owing to the baffle or the nozzle casing that engage by adhesive as attachment; thereby when adhesive oozes out or overflows; can be back to the contact site between baffle or nozzle casing and the nozzle plate, cause insulating and can't suppress charged worry thereby have.Though can expect using film adhesive to prevent to ooze out or overflow, the control difficulty of film bond locations is higher and cost is also very big.In addition, also can consider to use be mixed with foamed ball (beads) uniformly-spaced the adhesive of (spacer) prevent to ooze out or overflow, disperse at interval or sedimentation preventing but need carry out sufficient quality management, thereby be difficult to management and cost is increased.
On the other hand, when nozzle plate is implemented the insulating properties water-proofing treatment, need the waterproof membrane of removing of part in order to form conducting portion, thereby increased work manhours.In addition and since baffle or nozzle casing by contact with the nozzle plate conducting, thereby may produce the gap in contact portion, thereby can't remove static reliably and bring problem to reliability owing to environmental change such as variations in temperature.In addition, owing between baffle or nozzle casing and nozzle plate, need adhesive surface and contact-making surface, thus the whole problem that maximizes of shower nozzle is arranged.
In addition, described problem does not exist only in the ink jet recording head of ejection ink, exists too in other jet head liquids outside the ejection ink.
Patent documentation 1: the Japanese documentation spy opens flat 5-201000 communique (Fig. 1, the 3rd～4 page etc.)
Summary of the invention
The present invention makes in view of above-mentioned condition, and its purpose is to provide a kind of and can be subjected to environmental change etc. to carry out the jet head liquid and the liquid injection apparatus that contact, improve the reliability that destatics between attaching parts and the nozzle plate reliably with influencing.
In addition, the present invention makes in view of above-mentioned condition, its purpose is to provide a kind of manufacture method of making the jet head liquid of following jet head liquid, described jet head liquid can not be subjected to environmental change etc. to carry out contacting between attaching parts and the nozzle plate reliably with influencing, thereby improves the reliability that static is removed.
The present invention's first mode that is used to reach above-mentioned purpose is following a kind of jet head liquid, it is characterized in that, comprising: a plurality of head main bodies, be furnished with the nozzle plate that has formed a plurality of nozzles; Attachment are bonded on the nozzle plate with a plurality of head main bodies that are adhesively fixed by adhesive; Opening, be formed on attachment with the corresponding zone of nozzle on; And protuberance, be formed at edge of opening portion by nozzle plate one side, and side-prominent to nozzle plate one.Wherein, when attachment being engaged with nozzle plate, make protuberance invade in the nozzle plate by adhesive.
In first mode, because protuberance invades in the nozzle plate, thereby contacting between attachment and the nozzle plate is very reliable, not influenced by environment conversion etc., thereby improve the reliability that static is removed.In addition, owing to guarantee to have living space between attachment and nozzle plate by protuberance, thereby can suppress oozing out or overflowing of adhesive.In addition, owing to do not need film adhesive or foamed ball etc. to be mixed with at interval adhesive, thereby can simplify operation and reduce cost.In addition, owing to do not need contact-making surface between attachment and the nozzle plate, thereby area that can the corresponding nozzle plate forms head main body, thereby can realize the miniaturization of injector head.
Second mode of the present invention is as the described jet head liquid of first mode, it is characterized in that, protuberance is that the overlap when forming opening partly forms.
In second mode, can form protuberance by the operation of using formation openings such as punch process.
Third Way of the present invention is as the described jet head liquid of first or second mode, it is characterized in that, carries out the plane pressurization by the edge part to opening and makes protuberance invade in the nozzle plate.
In Third Way, protuberance is invaded in the nozzle plate on a large scale reliably whole, can eliminate in attaching parts side paperboard etc. by the plane pressurization part.
Cubic formula of the present invention be as first to the Third Way the described jet head liquid of arbitrary mode, it is characterized in that nozzle plate and attachment are formed by electroconductive component.
In cubic formula, can easily remove static.
The 5th mode of the present invention is as the described jet head liquid of cubic formula, it is characterized in that, is formed with the waterproof membrane of insulating properties in the drop of nozzle plate ejection face one side, and protuberance has surpassed the thickness of waterproof membrane to the intrusion amount of nozzle plate.
In the 5th mode, even formed waterproof membrane, protuberance also can penetrate waterproof membrane and invade in the nozzle plate, thereby can carry out static reliably and remove.
The 6th mode of the present invention is as the described jet head liquid of arbitrary mode in first to the 5th mode, it is characterized in that, attachment are the capouch that cover a plurality of head main bodies.
In the 6th mode, can use capouch to carry out static reliably and remove.
The 6th mode of the present invention is as the described jet head liquid of arbitrary mode in first to the 5th mode, it is characterized in that attachment are fixed heads that a plurality of head main bodies are located mutually.
In the 7th mode, can use fixed head to carry out static reliably and remove.
Be used to reach above-mentioned purpose of the present invention the from all directions formula be following a kind of jet head liquid, it is characterized in that, comprising: a plurality of head main bodies, be furnished with the nozzle plate that has formed a plurality of nozzles; Attachment are bonded on the nozzle plate with a plurality of head main bodies that are adhesively fixed by adhesive; Opening, be formed on attachment with the corresponding zone of nozzle on; And protuberance, be formed at edge of opening portion by nozzle plate one side, and side-prominent to nozzle plate one.Wherein, nozzle plate and attachment are formed by electroconductive component, and formed the waterproof membrane of insulating properties in drop ejection face one side of nozzle plate, the nozzle plate position relative with protuberance be not for forming the waterproof membrane part, when attachment being engaged with nozzle plate, make protuberance partly contact with the not formation waterproof membrane of nozzle plate by adhesive.
The from all directions in the formula, because protuberance partly contacts with the not formation waterproof membrane of nozzle plate, thereby it is very reliable to obtain contacting of conducting between attachment and the nozzle plate, can not influenced by environmental change, thereby improve the reliability of static removal.In addition, owing to guarantee to have living space between attachment and nozzle plate by protuberance, thereby can suppress oozing out or overflowing of adhesive.In addition, owing to do not need film adhesive or be mixed with the equally spaced adhesive of foamed ball, thereby can simplify operation and realize that cost reduces.In addition, owing to do not need contact-making surface between attachment and the nozzle plate, thereby area that can the corresponding nozzle plate forms head main body, thereby can realize the miniaturization of injector head.
The 9th mode of the present invention is as the described jet head liquid of formula from all directions, it is characterized in that, protuberance is that the overlap when forming opening partly forms.
In the 9th mode, can form protuberance by the operation of using formation openings such as punch process.
The tenth mode of the present invention is as the described jet head liquid of the 8th or the 9th mode, it is characterized in that, attachment are the capouch that cover a plurality of head main bodies.
In the tenth mode, can use capouch to carry out static reliably and remove.
The 11 mode of the present invention is as the described jet head liquid of arbitrary mode in the 8th to the 9th mode, it is characterized in that, attachment are fixed heads that a plurality of head main bodies are located mutually.
In the 11 mode, can use fixed head to carry out static reliably and remove.
The 12 mode of the present invention that is used to reach above-mentioned purpose is following a kind of liquid injection apparatus, it is characterized in that described liquid injection apparatus is furnished with the described jet head liquid of arbitrary mode in the first to the 11 mode.
In the 12 mode, liquid injection apparatus is furnished with can carry out the jet head liquid that static is removed reliably.
The 13 mode of the present invention that is used to reach above-mentioned purpose is the manufacture method of following a kind of jet head liquid, it is characterized in that, in described method, the nozzle plate that has formed a plurality of nozzles is arranged on the head main body, pass through punch process, the zone corresponding to nozzle at the attachment that head main body is positioned forms opening, and form the overlap part by nozzle plate one side in edge of opening portion, when being adhered to attachment on the nozzle plate, overlap is partly invaded in the nozzle plate by the plane pressurization by adhesive.
In the 13 mode, provide the manufacture method of the jet head liquid of the jet head liquid that can make the reliability that can improve the static removal.
The of the present invention the tenth cubic formula that is used to reach above-mentioned purpose is the manufacture method of following a kind of jet head liquid, it is characterized in that, in described method, the nozzle plate that has formed a plurality of nozzles is arranged on the head main body, pass through punch process, the zone corresponding to nozzle at the attachment that head main body is positioned forms opening, when being adhered to attachment on the nozzle plate, make since the burr formation face of the edge of opening portion that punch process forms towards nozzle plate one side, carry out the plane pressurization via adhesive, make that thus burr invades in the nozzle plate.
In the tenth cubic formula, provide and to have made the manufacture method of the jet head liquid of the jet head liquid that can improve static removal reliability by being easy to processing.
The 15 mode of the present invention that is used to reach above-mentioned purpose is the manufacture method of following a kind of jet head liquid, it is characterized in that, in described method, a plurality of nozzles will have been formed, the nozzle plate of being made by electroconductive component is arranged on the head main body, pass through punch process, head main body is being positioned, and the zone corresponding to nozzle of the attachment of being made by electroconductive component forms opening, and form the overlap part by nozzle plate one side in edge of opening portion, form the waterproof membrane of insulating properties in drop ejection face one side of nozzle plate, and make the nozzle plate position relative for not forming the waterproof membrane part with the overlap part, when being adhered to attachment on the nozzle plate, the overlap part is partly contacted with the not formation waterproof membrane of nozzle plate by the plane pressurization by adhesive.
In the 15 mode, provide the manufacture method of the jet head liquid of the jet head liquid that can make the reliability that can improve the static removal.
The 16 mode of the present invention that is used to reach above-mentioned purpose is the manufacture method of following a kind of jet head liquid, it is characterized in that, in described method, a plurality of nozzles will have been formed, the nozzle plate of being made by electroconductive component is arranged on the head main body, pass through punch process, head main body is being positioned, and the zone corresponding to nozzle of the attachment of being made by electroconductive component forms opening, form the waterproof membrane of insulating properties in drop ejection face one side of nozzle plate, and the position that makes the nozzle plate relative with edge of opening portion is not for forming the waterproof membrane part, when being adhered to attachment on the nozzle plate, make since the burr formation face of the edge of opening portion that punch process forms towards nozzle plate one side, carry out the plane pressurization via adhesive, make burr partly contact thus with the not formation waterproof membrane of nozzle plate.
In the 16 mode, provide and to have made the manufacture method of the jet head liquid of the jet head liquid that can improve static removal reliability by being easy to processing.
Jet head liquid of the present invention and liquid injection apparatus can not be subjected to environmental change etc. to carry out contacting between attaching parts and the nozzle plate reliably with influencing, thereby can improve the reliability that static is removed.
In addition, the manufacture method of jet head liquid of the present invention can be made and can not be subjected to environmental change etc. to carry out contacting between attaching parts and the nozzle plate reliably with influencing, thereby can improve the jet head liquid of the reliability that static removes.
Description of drawings
Fig. 1 is the exploded perspective view of ink jet recording head;
Fig. 2 is the assembling stereogram of ink jet recording head;
Fig. 3 is the major part sectional view of ink jet recording head;
Fig. 4 is the exploded perspective view of ink jet recording head main body;
Fig. 5 is the sectional view of record head main body;
Fig. 6 is the sectional view of the major part of expression record head main body;
Fig. 7 is the stereogram of fixed head;
Fig. 8 is the master operation figure of the manufacture method of ink jet recording head;
Fig. 9 is the synoptic diagram of tape deck.
The specific embodiment
The exploded perspective state as the ink jet recording head of jet head liquid in one embodiment of the present invention has been shown among Fig. 1, the assembling stereoscopic-state as the ink jet recording head of jet head liquid in one embodiment of the present invention has been shown among Fig. 2, the major part cross section state as the ink jet recording head of jet head liquid in one embodiment of the present invention has been shown among Fig. 3, the exploded perspective view of ink jet recording head main body has been shown among Fig. 4, the cross section of record head main body has been shown among Fig. 5, the cross section of expression record head main body major part has been shown among Fig. 6, the stereoscopic-state of fixed head has been shown among Fig. 7.In addition, illustrated among Fig. 8 explanation as the master operation of the manufacture method of the ink jet recording head of jet head liquid.In addition, concise and to the point state as the tape deck of liquid injection apparatus has been shown among Fig. 9.
The structure of ink jet recording head is described based on Fig. 1 to Fig. 7 below.
Ink jet recording head 1 shown in the figure (jet head liquid: hereinafter referred to as record head) is by box body 100, ink jet recording head main body 200 (hereinafter referred to as the record head main body), constitute as the fixed head 300 and the capouch (cover head) 400 at junction surface.Box body 100 has box installation portion 101, and the print cartridge (not shown) as the ink feed unit is installed respectively therein.In addition, the bottom surface of box body 100 is provided with a plurality of ink vias 102, and the one end is to each box installation portion 101 openings, and the other end is to record head main body 200 1 side openings.In addition, on the opening portion of the ink via 102 of box installation portion 101, be fixed with the ink supply pin 103 that is inserted in the print cartridge.
Be fixed with a plurality of (being four in illustrated embodiment) the record head main body 200 (head unit) of locating with predetermined space in the bottom surface of box body 100 side.The corresponding respectively versicolor ink of four record head main bodys 200 of head unit and being provided with, four record head main bodys 200 are by being adhesively secured on the fixed head 300 and located mutually.Head unit is set at the bottom surface side of box body 100 with described positioning states.
Come the structure of declare record head main body 200 below based on Fig. 4, Fig. 5.
As shown in the figure, the stream that constitutes record head main body 200 forms substrate 201 and for example is made of monocrystalline silicon substrate, is formed with the elastic membrane 202 that forms by the preheating oxidation, be made of silica on one face.Be formed with a plurality of pressure generating chamber 203 on stream forms substrate 201, pressure generating chamber 203 forms by carrying out anisotropic etching from another side one side.For example, pressure generating chamber 203 forms two row side by side on the width of stream formation substrate 201.In addition, form the interconnecting part 205 that constitutes fluid reservoir 204 in the length direction of each row pressure generating chamber 203 outside, interconnecting part 205 is connected with liquid storing part on being arranged on the aftermentioned protective substrate, and fluid reservoir 204 is shared ink chamber of each pressure generating chamber 203.In addition, interconnecting part 205 is communicated with respectively with a end on each pressure generating chamber 203 length direction by ink supply path 206.
In addition, opening surface one side that forms substrate 201 at stream is applied film etc. by adhesive or hot melt and fixedly is bonded with and runs through the nozzle plate 208 that is provided with nozzle 207.Nozzle plate 208 is for example had the material (stainless steel for example: SUS) form of electric conductivity by metal material etc.
On the other hand, form on the substrate 201 lip-deep elastic membranes 202 and be formed with piezoelectric element 212 being formed at stream.Piezoelectric element 212 is made of following part: the lower electrode film (not shown) is for example formed by metal materials such as platinum, iridium; The piezoelectric body layer (not shown) is for example formed by lead zirconate titanate (PZT) etc.; The upper electrode film (not shown) is for example formed by metal materials such as iridium.
In addition; forming to engage on the substrate 201 at the stream that has formed described piezoelectric element 212 has protective substrate 214, and this protective substrate 214 has the piezoelectric element maintaining part 213 that piezoelectric element 212 motions can be guaranteed not hinder in big or small space in the zone relative with piezoelectric element 212.In addition, be formed with liquid storing part 215 on this protective substrate 214, this liquid storing part 215 is connected with the interconnecting part 205 that stream forms substrate 201 like that as mentioned above, and formation is as the fluid reservoir 204 of shared ink chamber of each pressure generating chamber 203.
In addition, the drive IC 216 that is used to drive each piezoelectric element 212 is installed on protective substrate 214.Though not shown, each terminal of this drive IC 216 is connected with the lead-in wire electrode of drawing from the electrode special of each piezoelectric element 212 by bonding wire etc.In addition, on each terminal of drive IC 216, connecting outside wirings 217 such as flexible printed (FPC) as shown in Figure 1, providing various signals such as printing signal by this outside wiring 217.
Engaging on flexible base, board 218 has head-shield (head case) 222, and this head-shield 222 is provided with the ink supply path 221 that is connected and is communicated with the ink via 120 of box body 100 with described ink introducing port 220.In fluid reservoir 204, supply ink by described ink via 102, ink supply path 221 and ink introducing port 220.And on the zone relative of this head-shield 222, be provided with the drive IC maintaining part 223 that on thickness direction, connects head-shield 222 with drive IC 216, though not shown, be filled with embedding agent in the mode that covers each drive IC 216 in this drive IC maintaining part 223.
After ink is filled with in 207 the inside from fluid reservoir 204 to nozzle of record head main body 200, based on from the tracer signal of drive IC 216 and apply voltage to each piezoelectric element 212 corresponding with pressure generating chamber 203, thereby make elastic membrane 202 and piezoelectric element 212 that deflection deformations take place and ink to each pressure generating chamber 203 in is exerted pressure, make ink spray thus from nozzle 207.
As shown in Figure 6, four record head main bodys 200 are being adhesively fixed on fixed head 300 under the state of being located mutually with predetermined space.Because fixed head 300 is made of the flat board that does not have big fin (rib), thereby carries out the assembling of four record head main bodys 200 easily.On fixed head 300, with each record head main body 200 be provided with accordingly as the opening that exposes nozzle 207 expose peristome 301, fixed head 300 is bonded on the edge part of the nozzle plate 208 that constitutes each record head main body 200 by adhesive 350.
Be formed with on the edge part that exposes peristome 301 of fixed head 300 to the side-prominent protuberance 311 of nozzle plate 208 1, when fixed head 300 joined on the nozzle plate 208 by adhesive 350, protuberance 311 was invaded to nozzle plate 208.Protuberance 311 is formed about 3 μ m, when bonding, by carrying out plane pressurization protuberance 311 is invaded in the face of that side of ejection ink droplet of nozzle plate 208 exposing peristome 301.Fixed head 300 contacts with nozzle plate 208 by protuberance 311, and fixed head 300 is the same with nozzle plate 208, is for example had the material (stainless steel for example: SUS) form of electric conductivity by metal material etc.
Invade about 1 μ m by making protuberance 311 about 3 μ m invade the top that makes protuberance 311 in the nozzle plate 208, can make resistance, remove thereby can carry out static well smaller or equal to (smaller or equal to 2 Ω) below 10 Ω.
Describe fixed head 300 in detail based on Fig. 7 below.The state of appearance of the fixed head 300 after perforation is processed has been shown in Fig. 7 (a), the detailed situation of edge part has been shown in Fig. 7 (b).
The peristome 301 of exposing of fixed head 300 is perforated by punch process, and after perforation, overlap partly forms burr, and the overlap that forms during perforation partly forms protuberance 311.The face (having formed the face of burr) that makes protuberance 311 is towards nozzle plate 208 1 sides and push fixed head 300.Therefore, can directly use the overlap part that produces because of punch process, thereby not need to be used to form the special procedure of protuberance 311, in addition, the management of the burr that punch process is caused becomes easily, thereby can cut down finished cost, reduce the processing operation.
In addition, the formation of exposing peristome 301 is not limited to process based on the perforation of punching press, also can use other processing (laser cutting, mechanical cutting etc.).At this moment, though be in other operations, to form protuberance 311, owing to carried out being used to form the processing of protuberance 311, thereby can form protuberance 311 with the precision of expection.
Based on Fig. 8 the bonding situation of fixed head 300 is described in detail below.Situation before bonding has been shown in Fig. 8 (a), the situation after bonding has been shown in Fig. 8 (b).
Shown in Fig. 8 (a), coating adhesive 350 between fixed head 300 and nozzle plate 208, and each record head main body 200 is alignd with the precalculated position.Then, shown in Fig. 8 (b), pressurization is pressed to nozzle plate 208 with fixed head 300, and makes adhesive 350 distortion.At this moment, the plane pressurization is carried out in the end of exposing peristome 301 of fixed head 300, make protuberance 311 invade in the nozzle plate 208.Then, make adhesive 350 sclerosis by drying process, thereby fixed head 300 and nozzle plate 208 are fixed together.
Thereby, can between nozzle plate 208 and fixed head 300, guarantee certain space by protuberance 311, thus can suppress adhesive 350 overflow with prevent the insulation.In addition, can suppress overflowing of adhesive 350 owing to needn't use film adhesive or be mixed with the equally spaced adhesive of foamed ball, thereby can simplify bonding operation, realize cost degradation.In addition, because the contact site of nozzle plate 208 and fixed head 300 needn't be set outside bonding part again, thereby can consistently form record head main body 200 with the area of nozzle plate 208, thus can realize the miniaturization of record head main body 200.
In addition, shown in Fig. 7 (a), if only obtain conducting for protuberance 311 is invaded in the nozzle plate 208, as long as on a part of exposing peristome 301 edge parts, form protuberance 311, if protuberance 311 is set but spread all over the whole zone of exposing peristome 301 edge parts, then protuberance 311 can become the embankment that stops adhesive 350 to flow out, thereby can prevent that adhesive 350 from flowing out to exposes in the peristome 301.
In said structure,, therefore,, also can remove static by making fixed head 300 ground connection even because of the paper feeding friction makes nozzle plate 208 charged owing to nozzle plate 208 is electrically connected with fixed head 300 by protuberance 311 is invaded.Thereby can prevent reliably since nozzle plate 208 charged, promptly owing to the destruction that is accumulated in that static on the nozzle plate 208 causes to piezoelectric element 212 etc.
In addition, because protuberance 311 invades in the nozzle plate 208, thereby form fixed head 300 at the state that is fixed under the state that elastic force works on the nozzle plate 208, thus, can be and the gap occurs at contact site owing to environmental changes such as variations in temperature, thus can keep in touch state reliably.Thereby, can improve the reliability that static is removed significantly.
On the surface of nozzle plate 208 (drop ejection face one side), be provided with the waterproof membrane of insulating properties.The thickness of waterproof membrane generally is to the maximum about 1 μ m, because protuberance 311 is about 3 μ m, exceeded the thickness of waterproof membrane, thereby by protuberance 311 is invaded in the nozzle plate 208, protuberance 311 can penetrate waterproof membrane.Thereby, even be provided with the nozzle plate 208 of insulating properties waterproof membrane, protuberance 311 invaded effectively and fixed head 300 is contacted with nozzle plate 208.Therefore, even formed waterproof membrane, also can under the situation of not carrying out waterproof membrane removal processing, carry out static effectively and remove.
In the present embodiment, protuberance 311 intrusions of fixed head 300 have been formed in the nozzle plate 208 of waterproof membrane, protuberance 311 penetrates waterproof membrane and makes nozzle plate 208 and fixed head 300 conductings.As other modes of the present invention, also can take following structure: (not forming the waterproof membrane part) exposed at the position of nozzle plate 208 that will be relative with protuberance 311 from waterproof membrane, contact with the protuberance 311 of fixed head 300 at the position of the SUS that exposes.Thus, protuberance 311 was invaded, nozzle plate 208 is contacted with fixed head 300.Thereby, suppose to constitute the insufficient height of the burr of protuberance 311, also can make nozzle plate 208 and fixed head 300 conducting effectively, remove thereby carry out static.
In addition, be fixed in four record head main bodys 200 on the fixed head 300 around capouch 400 is set, be not subjected to the influence of ink etc. by four record head main bodys 200 of capouch 400 protections.Capouch 400 have with fixed head 300 expose peristome 301 corresponding peristomes 401.
As shown in Figure 1 to Figure 3, capouch 400 has flange part 402 in the end, and flange part 402 is provided with through hole 403.By on the face of record head main body 200 1 sides jut 104 is set at box body 100, the through hole 403 of chimeric capouch 400 on jut 104, and by the top of jut 104 being heated and riveting and capouch 400 is fixed on the box body 100.
There is no particular limitation for the material of capouch 400, can equally with nozzle plate 208 grades use for example conductive material such as metal material.When using conductive material to form capouch 400, fixed head 300 can be electrically connected with capouch 400, and with capouch 400 ground connection.In addition, adopting under the situation of this structure, the same with nozzle plate 208 with joint between the fixed head 300, preferably capouch 400 and fixed head 300 are joined together by adhesive.
According to said structure, by protuberance 311 being invaded make in the nozzle plate 208 nozzle plate 208 and fixed head 300 electrical links, thereby can contact effectively, even also can keep contact with respect to the environmental change of variations in temperature etc.Therefore, can improve the reliability that static is removed.
In addition, between nozzle plate 208 and fixed head 300, form suitable space by protuberance 311, thereby can under not extrusion bonded dose 350 situation, suppress oozing out or overflowing of adhesive 350.In addition, owing to do not need special adhesive, thereby can simplify bonding operation and realize that cost reduces.In addition, owing to do not need to be used to carry out the contact-making surface of ground connection, thereby can consistently form shower nozzle with the area of nozzle plate 208, thus can make 200 miniaturizations of record head main body.
In addition,, also can fixed head 300 be contacted with nozzle plate 208 by protuberance 311 even on nozzle plate 208, formed the waterproof membrane of insulating properties, so, can carry out the conducting of nozzle plate 208 and fixed head 300 regardless of the material of waterproof membrane effectively.In addition, invade in the nozzle plate 208, can improve the maintenance of the position maintenance of each record head main body 200 by making protuberance 31 1.
In addition,, and the face of burr is carried out bonding towards nozzle plate 208, thereby do not need burr is taked special measure because the burr during with fixed head 300 punch process is as protuberance 311.In addition, owing to when protuberance 311 is pressed to nozzle plate 208, carried out plane pressurization processing, thereby can prevent when paper feeding the end of paper card to fixed head 300.
In addition, capouch 400 can not used above-mentioned fixed head 300 as attachment yet, protuberance (burr that is formed by punch process) is set on the peristome 401 of capouch 400, and the protuberance of peristome 401 is invaded in the nozzle plate 208.At this moment, position, and protection record head main body 200 is not influenced by ink etc. by capouch 400.At this moment, owing to can shorten each nozzle 207 of nozzle plate 208 and the distance between the recording medium, thereby can shorten the flying distance of ink droplet, make ink droplet can fly reliably on the recording medium, thereby can improve printing quality.At this moment, if in the whole zone that spreads all over peristome 401 edge parts protuberance 311 is set, then protuberance 311 becomes the embankment of the adhesive outflow that prevents bonding capouch 400 and nozzle plate 208, thereby can prevent that adhesive from flowing out in the peristome 401.
In addition, the protuberance intrusion of the peristome 401 of the capouch 400 that is made of conductive material has been formed in the nozzle plate 208 of waterproof membrane, and make protuberance penetrate waterproof membrane, make nozzle plate 208 and capouch 400 conductings thus, but also can adopt following structure: the same with the situation of said fixing plate 300, make nozzle plate 208 position relative from waterproof membrane, expose (not forming the waterproof membrane part), make the protuberance of peristome 401 contact with the position of the SUS that exposes with the protuberance of peristome 401.Thus, invade in the nozzle plate 208, nozzle plate 208 is contacted with capouch 400 even without the protuberance that makes peristome 401.Thereby, if it is not enough to constitute the burr height of peristome 401 protuberances, thus also can make nozzle plate 208 and capouch 400 reliably conducting carry out static and remove.
Above-mentioned record head 1 is installed in the inkjet recording device as liquid injection apparatus.The summary of inkjet recording device is described based on Fig. 9 below.
As shown in the figure, on record head 1A with record head main body and 1B, releasably be provided with the print cartridge 2A and the 2B that constitute ink donor unit, record head 1A and 1B are installed on the carriage 3.Bracket axle 5 has been installed on apparatus main body 4, and the carriage 3 that record head 1A, 1B have been installed is set on the bracket axle 5 and also can moves freely in the axial direction.The driving force of CD-ROM drive motor 6 is by a plurality of gear (not shown)s and be with 7 to be passed to carriage 3 synchronously, and the carriage 3 that record head 1 has been installed moves along bracket axle 5.On the other hand, on apparatus main body 4, be provided with marking roll (platen) 8 along bracket axle 5, paper of sending by not shown feeding-in roll etc. etc., as the recording sheet S of recording medium by conveyance to marking roll 8.
In the above-described embodiment, be that example has illustrated jet head liquid with the ink jet recording head that sprays ink droplet, but the present invention can be widely used in all liq injector head.For example, can be applied in the following injector head as jet head liquid, that is: employed record head in the image recording structure such as printer, employed biological organic matter sprays first-class in the middle of employed electrode material injector head, biochip are made during the electrode of employed color material injector head, OLED display or FED (electroluminescent display) etc. forms in the middle of the manufacturing of the filter of LCD etc.
Claims (16)
1. a jet head liquid is characterized in that, comprising:
A plurality of head main bodies are furnished with the nozzle plate that has formed a plurality of nozzles;
Attachment are bonded on the nozzle plate with a plurality of head main bodies that are adhesively fixed by adhesive;
Opening, be formed on attachment with the corresponding zone of nozzle on; And
Protuberance, be formed at edge of opening portion by nozzle plate one side, and side-prominent to nozzle plate one,
Wherein, when attachment being engaged with nozzle plate, protuberance is invaded in the nozzle plate by adhesive.
2. jet head liquid as claimed in claim 1 is characterized in that, protuberance is that the overlap when forming opening partly forms.
3. jet head liquid as claimed in claim 1 is characterized in that, carries out the plane pressurization by the edge part to opening and makes protuberance invade in the nozzle plate.
4. jet head liquid as claimed in claim 1 is characterized in that nozzle plate and attachment are formed by electroconductive component.
5. jet head liquid as claimed in claim 4 is characterized in that, is formed with the waterproof membrane of insulating properties in the drop of nozzle plate ejection face one side, and protuberance has surpassed the thickness of waterproof membrane to the intrusion amount of nozzle plate.
6. jet head liquid as claimed in claim 1 is characterized in that, attachment are the capouch that cover a plurality of head main bodies.
7. jet head liquid as claimed in claim 1 is characterized in that, attachment are fixed heads that a plurality of head main bodies are located mutually.
8. a jet head liquid is characterized in that, comprising:
A plurality of head main bodies are furnished with the nozzle plate that has formed a plurality of nozzles;
Attachment are bonded on the nozzle plate with a plurality of head main bodies that are adhesively fixed by adhesive;
Opening, be formed on attachment with the corresponding zone of nozzle on; And
Protuberance, be formed at edge of opening portion by nozzle plate one side, and side-prominent to nozzle plate one,
Wherein, nozzle plate and attachment are formed by electroconductive component,
And the drop at nozzle plate sprays the waterproof membrane that face one side has formed insulating properties,
The nozzle plate position relative with protuberance be not for forming the waterproof membrane part,
When attachment being engaged with nozzle plate, make protuberance partly contact with the not formation waterproof membrane of nozzle plate by adhesive.
9. jet head liquid as claimed in claim 8 is characterized in that, protuberance is that the overlap when forming opening partly forms.
10. jet head liquid as claimed in claim 8 is characterized in that, attachment are the capouch that cover a plurality of head main bodies.
11. jet head liquid as claimed in claim 8 is characterized in that, attachment are fixed heads that a plurality of head main bodies are located mutually.
12. a liquid injection apparatus is characterized in that, described liquid injection apparatus is furnished with as each described jet head liquid in the claim 1～11.
13. the manufacture method of a jet head liquid is characterized in that, in described method,
The nozzle plate that has formed a plurality of nozzles is arranged on the head main body,
By punch process, form opening in the zone corresponding to nozzle of the attachment that head main body is positioned, and form the overlap part in nozzle plate one side of leaning on of edge of opening portion,
When being adhered to attachment on the nozzle plate, overlap is partly invaded in the nozzle plate by the plane pressurization by adhesive.
14. the manufacture method of a jet head liquid is characterized in that, in described method,
The nozzle plate that has formed a plurality of nozzles is arranged on the head main body,
By punch process, form opening in the zone corresponding to nozzle of the attachment that head main body is positioned,
When being adhered to attachment on the nozzle plate, make since the burr formation face of the edge of opening portion that punch process forms towards nozzle plate one side,
Carry out the plane pressurization via adhesive, make that thus burr invades in the nozzle plate.
15. the manufacture method of a jet head liquid is characterized in that, in described method,
Be arranged on the head main body having formed nozzle plate a plurality of nozzles, that make by electroconductive component,
By punch process, form opening in the zone corresponding to nozzle of the attachment that head main body positioned and make by electroconductive component, and edge of opening portion form the overlap part by nozzle plate one side,
Form the waterproof membrane of insulating properties in the drop of nozzle plate ejection face one side, and make the nozzle plate position relative for not forming the waterproof membrane part with the overlap part,
When being adhered to attachment on the nozzle plate, the overlap part is partly contacted with the not formation waterproof membrane of nozzle plate by the plane pressurization by adhesive.
16. the manufacture method of a jet head liquid is characterized in that, in described method,
Be arranged on the head main body having formed nozzle plate a plurality of nozzles, that make by electroconductive component,
By punch process, form opening in the zone corresponding to nozzle of the attachment that head main body positioned and make by electroconductive component,
Form the waterproof membrane of insulating properties in the drop of nozzle plate ejection face one side, and the position that makes the nozzle plate relative with edge of opening portion is not for forming the waterproof membrane part,
When being adhered to attachment on the nozzle plate, make since the burr formation face of the edge of opening portion that punch process forms towards nozzle plate one side,
Carry out the plane pressurization via adhesive, make burr partly contact thus with the not formation waterproof membrane of nozzle plate.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005252093 | 2005-08-31 | ||
| JP2005-252093 | 2005-08-31 | ||
| JP2005252093 | 2005-08-31 | ||
| JP2006-195878 | 2006-07-18 | ||
| JP2006195878 | 2006-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1923515A CN1923515A (en) | 2007-03-07 |
| CN100431840C true CN100431840C (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101123818A Active CN100431840C (en) | 2005-08-31 | 2006-08-31 | Liquid-jet head, liquid-jet apparatus and method for producing liquid-jet head |
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| CN (1) | CN100431840C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5193501B2 (en) * | 2007-05-31 | 2013-05-08 | 株式会社ミマキエンジニアリング | Method for manufacturing nozzle plate for inkjet head |
| JP5532227B2 (en) * | 2010-03-25 | 2014-06-25 | セイコーエプソン株式会社 | Liquid ejecting head and liquid ejecting apparatus |
| JP5678586B2 (en) * | 2010-11-04 | 2015-03-04 | セイコーエプソン株式会社 | Liquid ejecting head, liquid ejecting head unit, liquid ejecting apparatus, and method of manufacturing liquid ejecting head |
| JP2012183773A (en) * | 2011-03-07 | 2012-09-27 | Seiko Epson Corp | Liquid jetting head and liquid jetting device, and method for manufacturing liquid jetting head |
| JP5741101B2 (en) * | 2011-03-18 | 2015-07-01 | セイコーエプソン株式会社 | Liquid ejecting head, liquid ejecting apparatus, and method of manufacturing liquid ejecting apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05201000A (en) * | 1992-01-28 | 1993-08-10 | Seiko Epson Corp | Ink jet recording head |
| JPH1016240A (en) * | 1996-07-08 | 1998-01-20 | Ricoh Co Ltd | Ink jet head and ink jet recorder |
| JP2003341079A (en) * | 2002-05-28 | 2003-12-03 | Ricoh Co Ltd | Ink jet head and ink jet recorder |
-
2006
- 2006-08-31 CN CNB2006101123818A patent/CN100431840C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05201000A (en) * | 1992-01-28 | 1993-08-10 | Seiko Epson Corp | Ink jet recording head |
| JPH1016240A (en) * | 1996-07-08 | 1998-01-20 | Ricoh Co Ltd | Ink jet head and ink jet recorder |
| JP2003341079A (en) * | 2002-05-28 | 2003-12-03 | Ricoh Co Ltd | Ink jet head and ink jet recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1923515A (en) | 2007-03-07 |
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