CN1094835C - Method for correcting casting flash quantity of vibration sheet - Google Patents
Method for correcting casting flash quantity of vibration sheet Download PDFInfo
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- CN1094835C CN1094835C CN98107150A CN98107150A CN1094835C CN 1094835 C CN1094835 C CN 1094835C CN 98107150 A CN98107150 A CN 98107150A CN 98107150 A CN98107150 A CN 98107150A CN 1094835 C CN1094835 C CN 1094835C
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- electroforming
- island
- vibration sheet
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Abstract
The present invention relates to a method for correcting casting flash quantity of vibration sheets. Firstly, a direct-current power supply is used for electroforming the first special time of a plated thin layer; an alternating-current power supply is used for electroforming the second special time of the plated thin layer to form a vibration sheet; subsequently, a photoresistive agent is coated on a non convex island area according to the design of a convex island on the vibration sheet; finally, the alternating-current power supply is used for electroforming third special time on a convex island area for generating the convex island and preventing the convex island from casting outwards in flash.
Description
The present invention is a kind of modification method of casting flash quantity of vibration sheet, refers to the modification method of the casting flash quantity of vibration sheet of application what piezoelectric ink jet printer nozzle head especially.It is the method for utilizing direct current and exchanging the mutual usefulness of electroforming, and the protrusion island that prevents to grow up on the vibrating reed is to excessive casting.
The ink-jet printer generally can be divided into two kinds, and a kind of is bubble type ink-jet printer, and another kind is the piezoelectric ink jet printer.In the piezoelectric ink jet printer, how to improve in its nozzle head, the vibrating reed of what ink cabin, position sidewall is that industry personnel pay close attention to.
See also Fig. 1, the principle of piezoelectric ink-jet head ejection ink is as follows: at first inject ink to ink cabin 15, utilize a ceramic lamination piezo-activator 12 again, promote the protrusion island 14 on the vibrating reed 13, the ink of extruded ink water tank 15 inside makes ink to nozzle bore (nozzle) 11 emission inks.By the nozzle bore on the what nozzle head, have many usually, it is to decide according to the resolution of printer, the printer that resolution is high more, the number of unit are nozzle bore on the nozzle head, promptly nozzle bore density is high relatively more.
See also Fig. 2, the material on above-mentioned vibrating reed 13 and protrusion island 14 is a nickel, and its making is finished with electroforming usually.Making step is that first electroforming one deck plating thin layer is used as vibrating reed 13 (4 minutes).Then, on vibrating reed 13, protrude the barrier region 19 on island, be coated with last layer photoresist 131, to stop energising.Hou is in the presumptive area 18 of protruding the island, and island (25 to 40 minutes) is protruded in electroforming.
See also Fig. 3, the voltage that existing electroforming is adopted is a direct current, and magnitude of voltage is generally negative 4.5 volts.The electric current of direct current electroforming is a successional electric current, unless powered-down, electroforming is to continue to carry out.Such electroforming velocity is than very fast, the making of favourable what large tracts of land (or large volume) object, and vibrating reed for example, the island is for example protruded in the making of unfavorable what small articles.
See also Fig. 4, because DC voltage is adopted in existing electroforming, the characteristic of its continuous electroforming causes when producing protrusion island 14, and face shaping is wayward, so produce the portion 141 of overflowing.Protrude island 14 if many overflow portion 141, relatively influence the raising of ink gun resolution, so it is precipitous more good more to protrude the edge on island 14.That is overflow portion 141 if can remove, then help the space configuration design of what actuator and the raising of actuator and protrusion island contraposition accuracy.
In the ink-jet printer of low-res, not high by the density of what parts, so still tolerable overflows the existence of portion 141.But in the ink-jet printer of high-res, overflow 141 one-tenth in portion limiting actuator space configuration design and influence the contraposition accuracy on actuator and protruding island, cause the production technology bottleneck of inkjet mechanism, also considerable to the influence of quality.
If can eliminate the portion of overflowing, then above-mentioned resolution and production technology bottleneck etc. are asked and are carried and can be readily solved, can improve the competitiveness of industry undoubtedly.
Owing to above reason, the objective of the invention is in order to overcome the disappearance of prior art, and a kind of modification method of casting flash quantity of vibration sheet is provided, is to utilize the Hou of direct current electroforming to impose the method that exchanges electroforming again, make the formed protrusion of electroforming island not have the phenomenon of overflowing and casting, improve the ink gun resolution to reach.
The modification method of casting flash quantity of vibration sheet of the present invention, it comprises the following step: at first, with a direct current power supply electroforming one plating thin layer one first special time; Should plate thin layer one second special time with an AC power electroforming, to form this vibrating reed; Then, according to the design on a protrusion island on this vibrating reed, coat photoresist in the zone on a non-protruding island; Hou is carried out electroforming 1 the 3rd special time with this AC power, protrudes the zone on island with what one, produces this protrusion island, and stops this protrusion island to excessive casting.
The modification method of casting flash quantity of vibration sheet as described, wherein the voltage of this dc source is negative 4.5 volts, and this first special time is 1 minute, and this second special time is 3 minutes, the 3rd special time is 25 to 40 minutes, and this AC power is the positive and negative 4.5 volts square wave of an amplitude.
The modification method of casting flash quantity of vibration sheet as described, the positive and negative 4.5 volts square wave of this amplitude wherein, its negative 4.5 volts is the electroforming phase, the time is 90 milliseconds (ms), and positive 4.5 volts be the electrolysis phase, the time is 300 to 600 milliseconds (ms).Certainly, above-mentioned electroforming system with the nickel metal for it.
Above-mentioned electroforming, the positive and negative 4.5 volts square wave of amplitude, negative 4.5 volts voltage etc. are provided is existing technology, can implement according to this by being familiar with this technical staff, so this case is not added to give unnecessary details.And desire to treat to illustrate in detail be its structure and principle etc.
The present invention will be described in detail by following accompanying drawing,
Fig. 1: existing piezoelectric ink jet printer nozzle head schematic diagram.
Fig. 2: existing vibrating reed is coated photoresist.
Fig. 3: the voltage waveform of existing direct current electroforming.
Fig. 4: the existing island of protruding produces the portion of overflowing.
Fig. 5: piezoelectric ink jet printer nozzle head schematic diagram of the present invention.
Fig. 6: vibrating reed of the present invention is coated photoresist.
Fig. 7: the present invention exchanges the voltage waveform of electroforming.
Fig. 8: the island shape is protruded in the present invention.
See also Fig. 5, desirable protrusion island side 142 should not have the portion of overflowing 141 that is caused because of the casting of overflowing among aforementioned Fig. 1.Therefore, when producing protrusion island 14, in order to reduce the casting phenomenon of overflowing, people at first still carried out electroforming one minute with negative 4.5 volts DC voltage, produce the Hou of first part 21 of plating thin layer earlier, then on this plating thin layer 21, continue electroforming 3 minutes, produce second part 22 of this plating thin layer again, to form a vibrating reed 13 with a pulse (pulse wave) formula power supply.
Then, see also Fig. 6,, on vibrating reed 13, coat a photoresist 131, do not coat the part of photoresist, then can in the electroforming process, produce and protrude island 14 to stop energising again according to the layout (pattern) that protrudes the island.
Hou with the square wave alternating-current power supply electroforming of Fig. 7 25 to 40 minutes, produces this protrusion island 14 again.Each square wave alternating-current electricity periodic system has the electroforming phase T1 of a negative voltage and the electrolysis phase T2 of a positive voltage.When utilizing electrolysis, positive electrode is most advanced and sophisticated easily earlier by the characteristic of electrolysis, makes the portion of overflowing 141 tips of protruding island 14 easily earlier by electrolysis, causes the size of the portion of overflowing 141 to be dwindled, and reaches the purpose of these protrusion island 14 shapes of control and size.
Protrude the profile on island by exchanging pulse wave control, but the electrolysis in the what square wave is interim, revises, revise the profile of Hou, as shown in Figure 8 protruding island side 142.
By the profile of what square wave electroforming electroforming more easy to control, be difficult for that the phenomenon of overflowing and casting is arranged so protrude island 14 sides 142, also can eliminate the portion of overflowing 141 among Fig. 1.Thus, when making the ink gun of high-res, just can not overflow portion 141 by limited what, and then enhance productivity.
Secondly, the square wave that this amplitude is positive and negative 4.5 volts, its negative 4.5 volts is the electroforming phase, time T 1 is 90 milliseconds (ms), and positive 4.5 volts for the electrolysis phase, time T 2 is 300 to 600 milliseconds (ms), is practical example, certainly, different T1, T2 and amplitude are when being changed according to need.
The existing method of the different what of the present invention ties up to what and utilizes different operating voltages, reaches the purpose of eliminating the portion of overflowing, is saving grace of the present invention and reach the realization of high-res and enhance productivity.
By above-mentioned diagram and explanation, utilize the direct current electroforming to exchange electroforming more as can be known, the external form on the protrusion island of vibrating reed is controlled within the pattern of permission, thereby can eliminate the phenomenon of this casting of overflowing, realization to high-res piezoelectric ink jet formula printer provides a valid approach; Secondly also benefit much to the raising of production efficiency.
Claims (8)
1. the modification method of a casting flash quantity of vibration sheet is characterized in that: comprise the following step:
With a direct current power supply electroforming one plating thin layer one first special time;
Should plate thin layer one second special time with an AC power electroforming, to form this vibrating reed;
According to the design on a protrusion island on this vibrating reed, coat photoresist in a barrier region of protruding the island; And
Carry out electroforming 1 the 3rd special time with this AC power, protrude the presumptive area on island, produce this protrusion island with what one.
2. the modification method of casting flash quantity of vibration sheet as claimed in claim 1 is characterized in that: the voltage of this dc source is negative 4.5 volts.
3. the modification method of casting flash quantity of vibration sheet as claimed in claim 1, it is characterized in that: this first special time is 1 minute.
4. the modification method of casting flash quantity of vibration sheet as claimed in claim 1, it is characterized in that: this AC power is the positive and negative 4.5 volts square wave of an amplitude.
5. the modification method of casting flash quantity of vibration sheet as claimed in claim 4 is characterized in that: the square wave that this amplitude is positive and negative 4.5 volts, and its negative 4.5 volts is the electroforming phase, the time is 90 milliseconds, and positive 4.5 volts be the electrolysis phase, the time is 300 to 600 milliseconds.
6. the modification method of casting flash quantity of vibration sheet as claimed in claim 1, it is characterized in that: this second special time is 3 minutes.
7. the modification method of casting flash quantity of vibration sheet as claimed in claim 1, it is characterized in that: electroforming is with the nickel metal for it.
8. the modification method of casting flash quantity of vibration sheet as claimed in claim 1, it is characterized in that: the 3rd special time is 25 to 40 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107150A CN1094835C (en) | 1998-03-04 | 1998-03-04 | Method for correcting casting flash quantity of vibration sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107150A CN1094835C (en) | 1998-03-04 | 1998-03-04 | Method for correcting casting flash quantity of vibration sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1227791A CN1227791A (en) | 1999-09-08 |
| CN1094835C true CN1094835C (en) | 2002-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98107150A Expired - Fee Related CN1094835C (en) | 1998-03-04 | 1998-03-04 | Method for correcting casting flash quantity of vibration sheet |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61256063A (en) * | 1985-05-09 | 1986-11-13 | Tokai Rika Co Ltd | Diaphragm |
| JPH0856413A (en) * | 1994-08-24 | 1996-03-05 | Kubota Corp | Tractor for agriculture |
| EP0707961A2 (en) * | 1994-10-17 | 1996-04-24 | Seiko Epson Corporation | Multi-layer type ink jet recording head and method of manufacturing same |
| US5539982A (en) * | 1992-03-03 | 1996-07-30 | Seiko Epson Corporation | Method of manufacturing an ink jet recording head |
| EP0755793A2 (en) * | 1995-07-26 | 1997-01-29 | Sony Corporation | Printer apparatus and method of production of same |
| US5604522A (en) * | 1992-06-11 | 1997-02-18 | Seiko Epson Corporation | Ink jet head and a method of manufacturing the ink jet head |
| EP0782923A1 (en) * | 1995-07-14 | 1997-07-09 | Seiko Epson Corporation | Laminated head for ink jet recording, production method thereof, and printer equipped with the recording head |
| EP0799700A2 (en) * | 1996-04-05 | 1997-10-08 | Seiko Epson Corporation | Ink jet recording head, its fabricating method and ink jet recording apparatus |
-
1998
- 1998-03-04 CN CN98107150A patent/CN1094835C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61256063A (en) * | 1985-05-09 | 1986-11-13 | Tokai Rika Co Ltd | Diaphragm |
| US5539982A (en) * | 1992-03-03 | 1996-07-30 | Seiko Epson Corporation | Method of manufacturing an ink jet recording head |
| US5604522A (en) * | 1992-06-11 | 1997-02-18 | Seiko Epson Corporation | Ink jet head and a method of manufacturing the ink jet head |
| JPH0856413A (en) * | 1994-08-24 | 1996-03-05 | Kubota Corp | Tractor for agriculture |
| EP0707961A2 (en) * | 1994-10-17 | 1996-04-24 | Seiko Epson Corporation | Multi-layer type ink jet recording head and method of manufacturing same |
| EP0782923A1 (en) * | 1995-07-14 | 1997-07-09 | Seiko Epson Corporation | Laminated head for ink jet recording, production method thereof, and printer equipped with the recording head |
| EP0755793A2 (en) * | 1995-07-26 | 1997-01-29 | Sony Corporation | Printer apparatus and method of production of same |
| EP0799700A2 (en) * | 1996-04-05 | 1997-10-08 | Seiko Epson Corporation | Ink jet recording head, its fabricating method and ink jet recording apparatus |
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| Publication number | Publication date |
|---|---|
| CN1227791A (en) | 1999-09-08 |
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