CN103802476B - Piezoelectric ink jet head - Google Patents

Abstract

The present invention is a kind of piezoelectric ink jet head, and comprise at least one ink jet unit and a feed flow runner, ink jet unit comprises pressure cavity and oscillating plate, wherein, pressure cavity and feed flow flow passage, oscillating plate is adjacent to pressure cavity; Jet orifice plate, jet orifice plate correspondence respectively this ink jet unit forms spray orifice respectively, and spray orifice and pressure cavity and feed flow flow passage, in order to spray printing drop; And actuating unit, be arranged on oscillating plate, and corresponding with pressure cavity, and actuating unit comprises multiple braking plates that cutting is formed, and each braking plate receives drive singal action respectively; Wherein, the selective reception drive singal of each braking plate, to drive multiple braking plate with multiple frequency action, drive singal adjusts according to the aperture of spray orifice and drop characteristics, makes spray orifice spray printing go out the drop of different size and different viscosity.

Description

Piezoelectric ink jet head

Technical field

System of the present invention about a kind of piezoelectric ink jet head, espespecially a kind of piezoelectric ink jet head with multiple braking plate.

Background technology

Along with the progress of ink-jet technology, ink-jet technology is no longer just applied on traditional prints market, in recent years be more applied in the process technique of flat-panel screens and semiconductor industry, but, in order to reduce costs and save processing time, seeking new ink-jet technology one after another, by what widely apply among this, is exactly piezoelectric ink jet technology.

Refer to 1A and 1B figure, wherein Figure 1A is the floor map of known piezoelectric ink jet head, Figure 1B is the A-A profile of Figure 1A, as shown in Figure 1A, known piezoelectric ink jet head 1 cording has the feed flow runner 11 flowed into for fluid, single braking plate 12, separately as shown in Figure 1B, known piezoelectric ink jet head 1 more includes pressure cavity 13, the micro-structural such as fluid runner 14 and the jet orifice plate 15 with spray orifice 151, and in pressure cavity 13, be that an oscillating plate 16 is set above the micro-structurals such as fluid runner 14 and spray orifice 151, and above oscillating plate 16, and the position corresponding to pressure cavity 13 arranges this single braking plate 12.

When a voltage acts on the two poles of the earth up and down of braking plate 12, an electric field can be produced, braking plate 12 is made to produce flexural deformation under the effect of this electric field, because braking plate 12 is be arranged on oscillating plate 16, therefore the suction that produces of braking plate 12 and thrust can be passed to oscillating plate 16, oscillating plate 16 is made also and then to be extruded distortion, when braking plate 12 produces suction, fluid will enter in the pressure cavity 13 of piezoelectric ink jet head 1 inside via feed flow runner 11, when braking plate 12 produces thrust, the fluid be stored in pressure cavity 13 will be sent to fluid runner 14 to spray via spray orifice 151 because pressure cavity 13 is extruded.

Referring again to 1A and 1B figure, the braking plate 12 that known piezoelectric ink jet head 1 uses is of a size of 2700umx2700um, a spray orifice 151 and jet orifice plate 15 is only arranged in pairs or groups, and spray orifice 151 relative to braking plate 12 symmetrically or in putting, its aperture is between 30 to 120um.Refer to the 2nd figure, it is the drive singal schematic diagram of known piezoelectric ink jet head, and wherein the drive singal V that uses of known piezoelectric ink jet head 1 is based on 30V, that is crest is+30V, and trough is-30V.

Known piezoelectric ink jet head 1 is use single pressure cavity 13 and single braking plate 12, namely a pressure cavity 13 configures a braking plate 12, although can carry out the fluid of spray printing different size and viscosity by adjustment drive singal, versatility is not enough, and fluid applicatory is restricted.Known piezoelectric ink jet head 1 is about 1400000um in braking plate 12 dimensioned area ²time can the low-viscosity fluid such as spray printing pure water, if but wish to be applicable to more High-Sr granite simultaneously, current industry adopts a directly configuration large-sized braking plate 12 to solve above-mentioned known disappearance, and as used braking plate 12 size of 3750um x 3750um, its about 10 times to aforementioned 1400000um ²can spray printing area, make braking plate 12 can be applicable to the fluid of various different viscosity to carry out spray printing to reach simultaneously, but adopt this kind of settling mode but to need braking plate 12 can be driven to operate with larger drive singal, make originally only to need when spray printing low-viscosity fluid or small size drop to use the drive singal of low voltage value to carry out spray printing, but knownly but export excessive drive singal to drive braking plate 12 spray printing low-viscosity fluid, unnecessary energy dissipation will be caused.

Therefore, how to develop a kind of piezoelectric ink jet head with multiple braking plate improving above-mentioned known techniques disappearance, real is problem in the urgent need to address at present.

Summary of the invention

Main purpose of the present invention is to provide a kind of piezoelectric ink jet head with multiple braking plate, a large-sized braking plate is configured to be applicable to the fluid spray printing of various different viscosity in order to do the known piezoelectric ink jet head of solution, but need braking plate can be driven to operate with larger drive singal, make the excessive drive singal when spray printing low-viscosity drop can cause the shortcomings such as unnecessary energy dissipation.

For reaching above-mentioned purpose, of the present invention one comparatively broad sense implement aspect for providing a kind of piezoelectric ink jet head, comprise at least one ink jet unit and a feed flow runner, this ink jet unit comprises a pressure cavity and an oscillating plate, wherein, this pressure cavity and this feed flow flow passage, this oscillating plate is adjacent to this pressure cavity; One jet orifice plate, this jet orifice plate correspondence respectively this ink jet unit forms a spray orifice respectively, and this spray orifice and this pressure cavity and this feed flow flow passage, in order to spray printing drop; And an actuating unit, be arranged on this oscillating plate, and corresponding with this pressure cavity, and this actuating unit comprises multiple braking plates that cutting is formed, and respectively this braking plate receives a drive singal action respectively; Wherein, this drive singal of the selective reception of each braking plate, to drive the plurality of braking plate with multiple frequency action, this drive singal adjusts according to the aperture of this spray orifice and drop characteristics, makes this spray orifice spray printing go out the drop of different size and different viscosity.

Accompanying drawing explanation

Figure 1A is the floor map of known piezoelectric ink jet head.

Figure 1B is the A-A profile of Figure 1A.

Fig. 2 is the drive singal schematic diagram of known piezoelectric ink jet head.

Fig. 3 A is the floor map of the piezoelectric ink jet head of the present invention first preferred embodiment.

Fig. 3 B is the B-B profile of Fig. 3 A.

Fig. 4 A ~ 4E is the drive singal schematic diagram of the piezoelectric ink jet head shown in Fig. 3 A.

Fig. 5 A is the floor map of the piezoelectric ink jet head of the present invention second preferred embodiment.

Fig. 5 B is the C-C profile of Fig. 5 A.

Fig. 6 A ~ 6I is the drive singal schematic diagram of the piezoelectric ink jet head shown in Fig. 5 A.

Fig. 7 A is the cutting schematic diagram of the piezoelectric ink jet head of the present invention the 3rd preferred embodiment.

Fig. 7 B is the flow chart of the cutting method of the present invention the 3rd preferred embodiment piezoelectric ink jet head braking plate.

Fig. 7 C is the schematic diagram of the piezoelectric ink jet head of the present invention the 3rd preferred embodiment.

Fig. 8 A is the cutting schematic diagram of the piezoelectric ink jet head of the present invention the 4th preferred embodiment.

Fig. 8 B is the flow chart of the cutting method of the present invention the 4th preferred embodiment piezoelectric ink jet head braking plate.

Fig. 8 C is the schematic diagram of the piezoelectric ink jet head of the present invention the 4th preferred embodiment.

Fig. 9 A is the cutting schematic diagram of the piezoelectric ink jet head of the present invention the 5th preferred embodiment.

Fig. 9 B is the flow chart of the cutting method of the present invention the 5th preferred embodiment piezoelectric ink jet head braking plate.

Fig. 9 C is the schematic diagram of the piezoelectric ink jet head of the present invention the 5th preferred embodiment.

[primary clustering symbol description]

Piezoelectric ink jet head: 1,2,3,7,8,9

Braking plate: 12

Pressure cavity: 13,23

Fluid runner: 14,24

Jet orifice plate: 15,25

Spray orifice: 151,251,74,83,93

Oscillating plate: 16,26

Actuating unit: 22,32,73,82,92

First braking plate: 221,321

Second braking plate: 222,322

3rd braking plate: 323

Feed flow runner: 11,21,71

Ink jet unit: 72,811,812,813,814,911,912,913,914

Braking plate: 731,732,733,734,821,822,823,824,921,922,923,924

Alignment mark: 75

Length: X1, X2, X3, X4

Width: Y1, Y2, Y3

Drive singal: V

Cutting distance: X5, X6, X8, Y4, Y6, Y8, Y10, Y11, Y13

Layout distance: X7, Y5, Y7, Y9, Y12

Line of cut: L1 ~ L10, C1 ~ C8

S71-S75, S81-S86, S91-96: the cutting step of piezoelectric ink jet head braking plate

Detailed description of the invention

Some exemplary embodiments embodying feature & benefits of the present invention describe in detail in the explanation of back segment.Be understood that the present invention can have various changes in different aspects, it neither departs from the scope of the present invention, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the present invention.

Refer to Fig. 3 A and 3B, wherein Fig. 3 A is the floor map of the piezoelectric ink jet head of the present invention first preferred embodiment, Fig. 3 B is the B-B profile of Fig. 3 A, as shown in the figure, the piezoelectric ink jet head 2 of the present embodiment has the feed flow runner 21 flowed into for fluid, at least one ink jet unit, fluid runner 24, jet orifice plate 25 and actuating unit 22, in the present embodiment, actuating unit 22 comprises the first braking plate 221 and the second braking plate 222 that cutting is formed, jet orifice plate 25 in correspondence respectively this ink jet unit form a spray orifice 251 respectively, in order to spray printing drop, and ink jet unit comprises pressure cavity 23 and oscillating plate 26, pressure cavity 23 is be communicated with spray orifice 251 and feed flow runner 21, and in pressure cavity 23, be that this oscillating plate 26 is set above the micro-structurals such as fluid runner 24 and spray orifice 251, oscillating plate 26 is be adjacent to pressure cavity 23, and this first braking plate 221 and the second braking plate 222 is set above oscillating plate 26 and corresponding to the position of pressure cavity 23.

Referring again to Fig. 3 A, first braking plate 221 of this preferred embodiment and the second braking plate 222 are that the braking plate utilizing laser cutting device to cut such as shown in Figure 1A in the mode of crosscut formed, and both length X1 systems are identical, width Y1 and Y2 is also identical, in the present embodiment, length X can be but is not limited to 3800um, width Y1 and Y2 can be but be not limited to 1900um, the size of certain first braking plate 221 and the second braking plate 222 is not as limit, and both sizes also can be different, chip cutting equipment can be used to cut out required size according to demand.

This first braking plate 221 of the present invention and this second braking plate 222 are a piezoelectric board, and the piezoelectricity powder manufacture of the lead zirconate titanate of high tension electricity coefficient (PZT) series can be adopted to form.

Referring again to Fig. 3 B, this first braking plate 221 and this second braking plate 222 can receive a drive singal V and action respectively, its function mode system is by the two poles of the earth up and down respectively a drive singal V being acted on the first braking plate 221 and the second braking plate 222, to produce an electric field, the first braking plate 221 and the second braking plate 222 is made to produce flexural deformation under the effect of this electric field, because the first braking plate 221 and the second braking plate 222 are be arranged on oscillating plate 26, therefore the suction that produces of the first braking plate 221 and the second braking plate 222 and thrust can be passed to oscillating plate 26, oscillating plate 26 is made also and then to be extruded distortion, when the first braking plate 221 and the second braking plate 222 produce suction, i.e. upwards dilatancy, fluid will enter in the pressure cavity 23 of piezoelectric ink jet head 2 inside via feed flow runner 21, when the first braking plate 221 and the second braking plate 222 produce thrust, i.e. downward crimp, the fluid be stored in pressure cavity 23 will be sent to fluid runner 24 to spray via spray orifice 251 because pressure cavity 23 is extruded.

Referring again to Fig. 3 A and 3B, first braking plate 221 of the present invention and the second braking plate 222 fasten lower corresponding setting, therefore the first braking plate 221 and this drive singal of the selective reception of the second braking plate 222 V can be made, to drive the first braking plate 221 and the second braking plate 222 with multiple frequency action, and this drive singal V adjusts according to the aperture of spray orifice 251 and drop characteristics, this spray orifice 251 spray printing is made to go out the drop of different size and different viscosity, namely optionally at least one braking plate running in this first braking plate 221 and this second braking plate 222 is driven by different drive singal V, can reach in response to different spray printing size, the different fluid of viscosity and the demand of different spray printing speed, below will illustrate and use different driving signal V to operate to drive at least one braking plate in this first braking plate 221 and this second braking plate 222, and accessible effect.

Refer to Fig. 3 B and Fig. 4 A and 4B, in the present embodiment, first braking plate 221 and the second braking plate 222 one of them can receive separately this drive singal V, to control only single braking plate action, namely the first braking plate 221 is driven separately and the second braking plate 222 does not operate (as shown in figure 4), or separately drive the second braking plate 222 and the first braking plate 221 does not operate (as shown in 4B), the drop making spray orifice 251 spray small size or low-viscosity can be reached.

Refer to Fig. 3 B and 4C, in the present embodiment, the first braking plate 221 and the second braking plate 222 can receive the drive singal V of homophase displacement simultaneously, to make both become homophase displacement action, can reach and make spray orifice 251 spray large scale or full-bodied drop.

Refer to Fig. 3 B and 4D, in the present embodiment, first braking plate 221 and the second braking plate 222 can receive the drive singal V of anti-phase displacement simultaneously, anti-phase displacement action is become to make both, namely become anti-phase displacement action one on the other both the first braking plate 221 and the second braking plate 222, can reach and make spray orifice 251 spray the drop of required size or viscosity according to user's demand.

Refer to Fig. 3 B and 4E, in the present embodiment, the first braking plate 221 and the second braking plate 222 can receive drive singal V in turn, to make both become action in turn, to increase the inking frequency of single spray orifice 251 to twice, can reach the effect promoting jet speed.

Above-mentioned spray orifice 251 aperture is between 30 to 120um, and the magnitude of voltage of above-mentioned drive singal V can +/-30V be main, but also can not be adjusted to such as +/-50V according to demand as limit, the magnitude of voltage of certain drive singal V is not limited to above-mentioned +/-30V or +/-50V and can adjusts on demand.

Refer to Fig. 5 A and 5B, wherein Fig. 5 A is the floor map of the piezoelectric ink jet head of the present invention second preferred embodiment, Fig. 5 B is the C-C profile of Fig. 5 A, as shown in Figure 5A, the piezoelectric ink jet head 3 of the present embodiment has feed flow runner 21, actuating unit 32, in the present embodiment, actuating unit 32 comprises the first braking plate 321 that cutting is formed, second braking plate 322 and the 3rd braking plate 323, separately as shown in Figure 5 B, piezoelectric ink jet head 3 more includes pressure cavity 23, fluid runner 24, there is the micro-structural such as jet orifice plate 25 and oscillating plate 26 of spray orifice 251, wherein, feed flow runner 21, single pressure cavity 23, fluid runner 24, having the jet orifice plate 25 of spray orifice 251 and the setting position of oscillating plate 26 and the object that can reach and effect system has been specified in the first preferred embodiment, therefore repeat no more.

Compare with the first embodiment, the piezoelectric ink jet head 3 of the present embodiment comprises the first braking plate 321, second braking plate 322 and the 3rd braking plate 323, and as shown in Figure 5 B, first braking plate 321, second braking plate 322 and the 3rd braking plate 323 are the top being arranged at oscillating plate 26, and arrange corresponding to the position of pressure cavity 23, be that left and right is disposed adjacent and the second braking plate 322 is be arranged between the first braking plate 321 and the 3rd braking plate 323 between two between three, spray orifice 251 correspondence is made to be arranged at this second braking plate 322, the braking plate that laser cutting device can be utilized to cut such as shown in Figure 1A in the mode of rip cutting formed, and the length X2 of three, X3, X4 can be similar, width Y3 then can be identical, in the present embodiment, length X2, X3, X4 can be respectively 1266um, 1268um, 1266um, width Y3 can be but is not limited to 3800um, certain first braking plate 321, the size of the second braking plate 322 and the 3rd braking plate 323 is not as limit, and volume size also can be different, chip cutting equipment can be used to cut out required size according to demand.

As for, first braking plate 321, second braking plate 322 and the 3rd braking plate 323 can be a piezoelectric board, the piezoelectricity powder manufacture of the lead zirconate titanate of high tension electricity coefficient (PZT) series can be adopted to form, and its function mode and the object that can reach and effect system have been specified in the first preferred embodiment, therefore repeat no more.

Referring again to Fig. 5 A and 5B, because the present invention only comprises single pressure cavity 23, and the first braking plate 321, be that left and right is disposed adjacent between two between second braking plate 322 and the 3rd braking plate 323, and the second braking plate 322 is be arranged between the first braking plate 321 and the 3rd braking plate 323, spray orifice 251 correspondence is made to be arranged at this second braking plate 322, therefore the first braking plate 321 can be made, second braking plate 322 and this drive singal of the selective reception of the 3rd braking plate 323 V, to drive the first braking plate 321, second braking plate 322 and the 3rd braking plate 323 are with multiple frequency action, this spray orifice 251 spray printing is made to go out the drop of different size and different viscosity, namely selectively the first braking plate 321 is driven by different drive singal V, at least one braking plate running in second braking plate 322 and the 3rd braking plate 323, can reach in response to different spray printing size, the different fluid of viscosity and the demand of different spray printing speed, below will illustrate and use different driving signal V to drive the first braking plate 321, in second braking plate 322 and the 3rd braking plate 323, at least one braking plate operates, and accessible effect.

Refer to Fig. 5 B and Fig. 6 A, 6B and 6C, in the present embodiment, first braking plate 321, second braking plate 322 and the 3rd braking plate 323 one of them receive separately drive singal V, with control only single braking plate in vibration area action, namely the first braking plate 321 is driven separately and the second braking plate 322 and the 3rd braking plate 323 do not operate (as shown in 6A figure), independent driving second braking plate 322 and the first braking plate 321 and the 3rd braking plate 323 do not operate (as shown in 6B figure) or drive separately the 3rd braking plate 323 and the first braking plate 321 and the second braking plate 322 do not operate (as shown in 6C figure), the drop making spray orifice 251 spray small size or low-viscosity can be reached, if but spray orifice 251 is relative to the first braking plate 321, the area system that second braking plate 322 and the 3rd braking plate 323 are formed is in putting, then to drive the second braking plate 322 for good.

Refer to Fig. 5 B and Fig. 6 D, in the present embodiment, first braking plate 321, second braking plate 322 and the 3rd braking plate 323 can receive the drive singal V of homophase displacement simultaneously, to make three become homophase displacement action, can reach and make spray orifice 251 spray large scale or full-bodied drop.

Refer to Fig. 5 B and Fig. 6 E, 6F and 6G, in the present embodiment, first braking plate 321, second braking plate 322 and the 3rd braking plate 323 wherein two receive drive singal V, to make the several braking plate action of part in the plurality of braking plate, namely drive the first braking plate 321 and the second braking plate 322 and the 3rd braking plate 323 does not operate (as shown in 6E figure) simultaneously, or drive the second braking plate 322 and the 3rd braking plate 323 and the first braking plate 321 does not operate (as shown in 6F figure) simultaneously, or drive the first braking plate 321 and the 3rd braking plate 323 and the second braking plate 322 does not operate (as shown in 6F figure) simultaneously, the drop making spray orifice 251 spray medium size or moderate viscosity can be reached.

Refer to Fig. 5 B and Fig. 6 H, in the present embodiment, first braking plate 321, second braking plate 322 and the 3rd braking plate 323 are receive drive singal V simultaneously, and make to become anti-phase displacement action between two adjacent braking plates, namely reverse displacement action is one on the other become between two adjacent braking plates, the first braking plate 321 wherein and the 3rd braking plate 323 direction of displacement identical, the second braking plate 322 direction of displacement is contrary, makes spray orifice 251 spray the drop of required size or viscosity to reach according to user's demand.

Refer to Fig. 5 B and Fig. 6 I, in the present embodiment, the first braking plate 321, second braking plate 322 and the 3rd braking plate 323 are receive drive singal V in turn, become action in turn to make three, to increase the inking frequency to three times of single spray orifice 251, the effect promoting jet speed can be reached.

The magnitude of voltage of above-mentioned drive singal V can +/-30V be main, but also can not be adjusted to such as +/-50V according to demand as limit, and the magnitude of voltage of certain drive singal V is not limited to above-mentioned +/-30V or +/-50V and can adjusts on demand.

The size of multiple braking plates that piezoelectric ink jet head of the present invention comprises is not limited to identical in fact, also different size can be cut into by chip cutting equipment, to be cut into the first braking plate 321, second braking plate 322 and the 3rd braking plate 323 3 block shown in Fig. 5 A, the volume being wherein arranged at the second braking plate 322 of zone line can be greater than the first braking plate 321 and the 3rd braking plate 323, and now only with drive individually be arranged at middle block the second braking plate 322 can ink-jet for principle.

In like manner, the braking plate quantity that piezoelectric ink jet head 2,3 of the present invention comprises is not limited to 2 or 3 shown in 3A and 5A figure, chip cutting equipment can be used to cut out required number of blocks according to demand, only require to drive the braking plate of closer spray orifice to be can ink-jet, the braking plate being arranged at other block is then only and coordinates the gross area making the braking plate effectively driven to increase, and uses the drop of ejection various sizes or viscosity.

As shown in the above, piezoelectric ink jet head of the present invention configures multiple braking plate by single pressure cavity, and adjust drive singal to drive wherein one or more braking plates simultaneously according to different demand, namely for spray printing different size, the different drop of viscosity and the demand condition of different inking frequency, the present invention can be allocated flexibly and drive the quantity of braking plate and the magnitude of voltage of drive singal to achieve the goal, such as only need reduce the quantity of braking plate running when spray printing low-viscosity drop and the magnitude of voltage reducing drive singal can meet demand, and adopt the mode of the magnitude of voltage reducing drive singal more can avoid unnecessary energy dissipation, and, compare to use identical total actuating area, known techniques only uses single braking plate, and it can the drop size of spray printing limit to some extent, review, the driving quantity that the present invention then can control braking plate according to demand reaches can the demand of the more different size drops of spray printing, to promote versatility.

Refer to Fig. 7 A and Fig. 7 B, wherein Fig. 7 A is the structural representation of the piezoelectric ink jet head of the present invention the 3rd preferred embodiment, Fig. 7 B is the flow chart of the cutting method of the present invention the 3rd preferred embodiment piezoelectric ink jet head braking plate, as shown in Figure 7 A, piezoelectric ink jet head 7 of the present invention is a sandwich construction, main system is arranged by an oscillating plate and multiple plate (non-icon) storehouse and forms, and piezoelectric ink jet head 7 has a feed flow runner 71 and multiple ink jet unit 72, wherein, in the present embodiment, the actuating area system of the plurality of ink jet unit 72 to be distributed in four different quadrants but not to be symmetrical arranged each other, each ink jet unit 72 has a pressure cavity (not shown), and piezoelectric ink jet head 7 more comprises a jet orifice plate (not shown) with the plurality of spray orifice 74, in each ink jet unit 72 respectively correspondence one spray orifice 74 is set, and the pressure cavity of each ink jet unit 72 is all connected with feed flow runner 71, make spray printing fluid can flow in each pressure cavity by feed flow runner 71, and the pressure cavity place of multiple ink jet unit 72 is provided with an actuating unit 73, wherein, actuating unit 73 be can by but do not limit by lead zirconate titanate (Lead Zirconate Titanate, PZT) piezoelectric formed, can cut actuating unit 73 by a cutting equipment, the pressure cavity part making actuating unit 73 correspond to each ink jet unit 72 produces a braking plate respectively, namely the braking plate 731 shown in Fig. 7 A, 732, 733, 734, braking plate 731, 732, 733, 734 are formed in the pressure cavity of the plurality of ink jet unit 72 respectively, and optionally receive a drive singal V and action, and each spray orifice 74 is formed at corresponding braking plate 731 respectively, 732, 733, 734 generally in the relative position in putting.Wherein, the volume of each pressure cavity and the roughly proportional relation of the size of braking plate 731,732,733,734 and the aperture of each spray orifice 74, whereby, each braking plate 731,732,733,734 this drive singal of selective reception V, this drive singal V adjusts according to the aperture of each spray orifice 74 and drop characteristics, to drive the plurality of braking plate 731,732,733,734 with multiple frequency action, this spray orifice 74 spray printing is made to go out the drop of different size and different viscosity.

Refer to Fig. 7 B, it is the flow chart of the cutting method of the piezoelectric ink jet head braking plate of the present invention the 3rd preferred embodiment, as shown in the figure, the cutting method system of the piezoelectric ink jet head braking plate of the present embodiment comprises the following step: first, piezoelectric ink jet head 7 is provided, its cording has a feed flow runner 71 and multiple ink jet unit 72, wherein multiple ink jet unit 72 has the pressure cavity be connected with feed flow runner 71 respectively, and form a spray orifice 74(respectively as shown in step S71 in each ink jet unit 72), and in the present embodiment, multiple ink jet unit 72 can be but is not limited to is be arranged in four quadrants respectively, then, one actuating unit 73 is set above the pressure cavity of multiple ink jet unit 72, actuating unit 73 comprises multiple braking plate 731, 732, 733, 734, and braking plate 731, 732, 733, 734 are formed in the pressure cavity of multiple ink jet unit 72 respectively, and optionally receive drive singal V and action, and each spray orifice 74 is formed at corresponding braking plate 731 respectively, 732, 733, 734 probably in the relative position (as shown in step S72) in putting, follow-up then setting braking plate 731, 732, 733, the actuating area of 734, and multiple alignment mark 75 can be indicated on this piezoelectric ink jet head 7, such as: indicate the alignment mark 75 presenting L-type with hatched manner, actuating unit 73 is fixedly arranged in scope that the plurality of alignment mark 75 formed, above the pressure cavity being arranged at multiple ink jet unit 72 to make actuating unit 73 may correspond to (as shown in step S73), certainly, the locate mode of actuating unit 73 of the present invention is not limited to be implemented with hatched manner sign alignment mark 75, and alignment mark 75 is not limited to L-type, any reach make actuating unit 73 be fixedly arranged on multiple ink jet unit 72 pressure cavity above mode be the scope that the present invention protects.

Then, with the area about each braking plate of a cutting equipment set by step S73, this actuating unit 73 is cut (as shown in step S74), a braking plate is produced respectively with the place making actuating unit 73 correspond to each this pressure cavity, namely the braking plate 731 shown in Fig. 7 A, 732, 733, 734(is as shown in step S75), whereby, the braking plate 731 of each pressure cavity difference tool predetermined area, 732, 733, 734, and optionally receive drive singal V action, drive singal V adjusts according to the aperture of each spray orifice 74 and drop characteristics, to drive braking plate 731, 732, 733, 734 with multiple frequency action, make braking plate 731, 732, 733, 734 corresponding different sizes select action from the drop of different viscosity.

Wherein, the cutting equipment that the present embodiment uses can be but not be limited to a wafer cutting equipment, such as: laser board, finally, the waste material in actuating unit 73 except braking plate 731,732,733,734 is removed the piezoelectric ink jet head 7 that can be formed as seen in figure 7 c.

In the present embodiment, braking plate 731, 732, 733, 734 can be different size and are square structure and are distributed in four different quadrants, for example: if the actuating area of the braking plate shown in Figure 1A 12 is 10 units, braking plate 731 then shown in Fig. 7 A, 732, 733, the actuating area of 734 can be respectively about 3, 5, 8, 10 units, and the aperture of the spray orifice 74 of each ink jet unit 72 roughly with the volume of corresponding pressure cavity and the actuating area of ink jet unit 72 proportional, namely the aperture of the spray orifice 74 of each ink jet unit 72 roughly with braking plate 731, 732, 733, the size of 734 and the proportional relation of the volume of pressure cavity, braking plate 731, 732, 733, the aperture of the spray orifice 74 corresponding to 734 can be respectively such as 30, 45, 60, 90um, certain braking plate 731, 732, 733, the actuating area of 734 and the pore size of corresponding spray orifice 74 be not as limit, can change according to the demand of reality.

Refer to Fig. 8 A and Fig. 8 B, wherein Fig. 8 A is the cutting schematic diagram of the piezoelectric ink jet head of the present invention the 4th preferred embodiment, Fig. 8 B is the flow chart of the cutting method of the present invention the 4th preferred embodiment piezoelectric ink jet head braking plate, as shown in Figure 8 A, the piezoelectric ink jet head 8 of the present embodiment is a sandwich construction, same system is arranged by an oscillating plate and multiple plate (non-icon) storehouse and forms, and piezoelectric ink jet head 8 has a feed flow runner 71 and multiple ink jet unit 811, 812, 813, 814, wherein, in the present embodiment, the plurality of ink jet unit 811, 812, 813, be be symmetrically set in the mode of longitudinal arrangement between 814, but not as limit, also can change on demand and be symmetrically set in transversely arranged mode, ink jet unit 811, 812, 813, 814 have a pressure cavity (not shown) respectively, and these pressure cavity are equidistant and other direction Unequal distance arrangement with a direction equal length, and piezoelectric ink jet head 8 more comprises a jet orifice plate (non-icon) with the plurality of spray orifice 83, in ink jet unit 811, 812, 813, 814 respectively correspondence one spray orifice 83 is set, and ink jet unit 811, 812, 813, the pressure cavity of 814 is all connected with feed flow runner 71, and spray printing fluid can be flowed in each pressure cavity by feed flow runner 71, and in ink jet unit 811, 812, 813, the pressure cavity place of 814 is provided with an actuating unit 82, wherein, actuating unit 82 be can by but do not limit by lead zirconate titanate (Lead Zirconate Titanate, PZT) piezoelectric formed, can cut actuating unit 82 by a cutting equipment, make actuating unit 82 correspond to each ink jet unit 811, 812, 813, the place of the pressure cavity of 814 produces a braking plate, the braking plate 821 namely shown in 8A and 8C figure respectively, 822, 823, 824, braking plate 821, 822, 823, 824 are formed at ink jet unit 811 respectively, 812, 813, in the pressure cavity of 814, and braking plate 821, 822, 823, the length-width ratio of 824 is less than 2, and optionally receives a drive singal V respectively and action, and each spray orifice 83 is formed at corresponding braking plate 821 respectively, 822, 823, 824 generally in the relative position in putting.

Wherein, the volume of each pressure cavity and the roughly proportional relation of the size of braking plate 821,822,823,824 and the aperture of each spray orifice 83, whereby, each braking plate 821,822,823,824 this drive singal of selective reception V, this drive singal V adjusts according to the aperture of each spray orifice 83 and drop characteristics, to drive the plurality of braking plate 821,822,823,824 with multiple frequency action, this spray orifice 83 spray printing is made to go out the drop of different size and different viscosity.

Refer to Fig. 8 A and 8B, wherein Fig. 8 B is the flow chart of the cutting method of the piezoelectric ink jet head braking plate of the present invention the 4th preferred embodiment, as shown in the figure, the cutting method system of the piezoelectric ink jet head braking plate of the present embodiment comprises the following step: first, there is provided piezoelectric ink jet head 8, its cording has a feed flow runner 71 and ink jet unit 811, 812, 813, 814, wherein ink jet unit 811, 812, 813, 814 have the pressure cavity be connected with feed flow runner 71 respectively, and in ink jet unit 811, 812, 813, 814 form a spray orifice 83(respectively as shown in step S81), and in the present embodiment, ink jet unit 811, 812, 813, be be symmetrically set in the mode of longitudinal arrangement between 814, but not as limit, also can change on demand and be symmetrically set in transversely arranged mode, then, in ink jet unit 811, 812, 813, arrange an actuating unit 82 above the pressure cavity of 814, actuating unit 82 comprises multiple braking plate 821, 822, 823, 824, and braking plate 821, 822, 823, 824 are formed at ink jet unit 811 respectively, 812, 813, in the pressure cavity of 814, and optionally receive drive singal V and action (as shown in step S82), follow-up, set each ink jet unit 811, 812, 813, the actuating area of 814, the cutting distance of one first direction and the plurality of ink jet unit 811, 812, 813, spacing distance (as shown in step S83) between 814, wherein this first direction can be but is not limited to X-direction, and each ink jet unit 811, 812, 813, the cutting distance of this first direction of 814 is equal, i.e. ink jet unit 811 as shown in Figure 8 A, 812, 813, 814 is equal in the cutting distance X5 system of X-direction, as ink jet unit 811, 812, 813, namely spacing distance between 814 distinguishes spacing distance Y5 as shown in Figure 8 A, Y7, Y9.

Then, each ink jet unit 811 set by step S83, 812, 813, the actuating area of 814 and the cutting distance of this first direction, namely the cutting distance X5 according to X-direction calculates each ink jet unit 811, 812, 813, 814 in the cutting distance of a second direction, second direction can be but is not limited to Y-direction, namely ink jet unit 811 is as shown in Figure 8 A in the cutting distance Y4 of Y-direction, ink jet unit 812 is in the cutting distance Y3 of Y-direction, ink jet unit 813 is in the cutting distance Y8 of Y-direction, ink jet unit 814 in the cutting distance Y10(of Y-direction as shown in step S84).

Follow-up, multiple alignment mark 75 can be indicated on this piezoelectric ink jet head 8, such as: indicate the alignment mark 75 presenting L-type with hatched manner, actuating unit 82 is fixedly arranged in scope that the plurality of alignment mark 25 formed, multiple ink jet unit 811 is arranged to make actuating unit 82 may correspond to, 812, 813, above the pressure cavity of 814 (as shown in step S85), certainly, the locate mode of actuating unit 82 of the present invention is not limited to be implemented with hatched manner sign alignment mark 75, and alignment mark 75 is not limited to L-type, any reaching makes actuating unit 82 be fixedly arranged on multiple ink jet unit 811, 812, 813, mode above the pressure cavity of 814 is the scope that the present invention protects.

Then, with the plurality of ink jet unit 811 of a cutting equipment set by step S83, 812, 813, 814 in the cutting distance of first direction, the plurality of ink jet unit 811, 812, 813, spacing distance between 814, and step S84 calculates each ink jet unit 811 of gained, 812, 813, 814 cut in the cutting distance of second direction this actuating unit 82, i.e. the plurality of ink jet unit 811, 812, 813, 814 in the cutting distance X5 of X-direction, the plurality of ink jet unit 811, 812, 813, spacing distance Y5 between 814, Y7, Y9, and ink jet unit 811 is in the cutting distance Y4 of Y-direction, ink jet unit 812 is in the cutting distance Y6 of Y-direction, ink jet unit 813 is in the cutting distance Y8 of Y-direction, ink jet unit 814 cuts in the cutting distance Y10 of Y-direction this actuating unit 82, forms a braking plate, the braking plate 821 namely shown in Fig. 8 C to make actuating unit 82 respectively at place's correspondence of each this pressure cavity, 822, 823, 824, and make respectively this spray orifice be formed at corresponding respectively this braking plate respectively generally in the relative position (as shown in step S86) in putting, whereby, the braking plate 821 of each pressure cavity tool predetermined area respectively, 822, 823, 824, and optionally receive drive singal V action, drive singal V adjust according to the aperture of each spray orifice 83 and drop characteristics, to drive braking plate 821, 822, 823, 824, with multiple frequency action, make braking plate 821, 822, 823, 824 corresponding different sizes select action from the drop of different viscosity.

In the present embodiment, can according to cutting distance Y4, Y6, Y8, Y10 and spacing distance Y5, Y7, Y9 indicates line of cut L1 ~ L8 and on actuating unit 82, indicates line of cut L9 ~ L10 according to cutting distance X1 on actuating unit 82, cutting equipment is cut actuating unit 82 along line of cut L1 ~ L10, can cut on actuating unit 82 and form braking plate 821, 822, 823, 824 and correspond respectively to each ink jet unit 811, 812, 813, the pressure cavity of 814, the order that the order of certain cutting equipment cutting is not limited to according to line of cut L1 ~ L10 is cut, cutting sequence can be changed according to substantial evidence demand, and the spendable cutting mode of the present invention be also not limited to hatched manner indicate line of cut implement, any can according to multiple ink jet unit 811, 812, 813, 814 in the cutting distance of first direction, multiple ink jet unit 811, 812, 813, spacing distance between 814, and each ink jet unit 811, 812, 813, 814 in second direction cutting distance and on actuating unit 82 cutting formed braking plate 821, 822, 823, the mode of 824 is the scope that the present invention protects.

Wherein, the cutting equipment that the present embodiment uses can be but not be limited to a wafer cutting equipment, such as: laser board, finally, the waste material in actuating unit 82 except the braking plate 821,822,823,824 shown in braking plate and Fig. 8 A is removed the piezoelectric ink jet head 8 that can be formed as shown in Figure 8 C.

In the present embodiment, braking plate 821,822,823,824 can be different size and is symmetrically set in the mode of longitudinal arrangement, and the size of the first direction of braking plate 821,822,823,824 is identical, namely the cutting distance X5 in X-direction is identical, therefore general cutting equipment can be used to cut out actuating unit 82, can reduce outside manufacturing cost, its waste material also uses laser cutting processing procedure to come few compared with the first embodiment.For example: if the actuating area of the braking plate shown in Figure 1A 12 is 10 units, braking plate 821 then shown in Fig. 8 A, 822, 823, the actuating area of 824 can be respectively about 10, 3, 5, 8 units, due to braking plate 821, 822, 823, the size of the first direction of 824 is identical, namely X-direction is measure-alike, therefore braking plate 821, 822, 823, 824 in the size of second direction, i.e. Y-direction size, the proportionate relationship of 10:3:5:8 will be had, make braking plate 821, 822, 823, 824 for rectangle and be not square, in this case, braking plate 821, 822, 823, the X of 824, Y-direction size still must carefully be allocated, in order to avoid because of braking plate 821, 822, 823, 824 long and affect action, therefore, refer to lower list one, braking plate 821 in the present embodiment, 822, 823, the length-width ratio (X/Y) of 824 all controls about 2 or following.

Table one:

And the aperture of the spray orifice 83 of each ink jet unit 811,812,813,814 roughly with the size of corresponding braking plate 821,822,823,824 and the proportional relation of area of pressure cavity, the aperture of the spray orifice 83 namely corresponding to braking plate 821,822,823,824 can be respectively such as 90,30,45,60um, the actuating area of certain braking plate 821,822,823,824 and the pore size of corresponding spray orifice 83, not as limit, can change according to the demand of reality.

In addition, the order that braking plate 821,822,823,824 is put is not limited to the aspect shown in Fig. 8 C, but because providing the fluid of spray printing more clear and more coherent the closer to the region in feed flow runner 21 stage casing, so the present embodiment is put in centre by using 3,5 braking plates 822 and 823 activating square measure relatively frequently, certainly, this position also can change the braking plate 824 and 821 that pendulum has 8,10 actuating square measures of high viscosity or large discharge demand.

Refer to Fig. 9 A and Fig. 9 B, wherein Fig. 9 A is the cutting schematic diagram of the piezoelectric ink jet head of the present invention the 5th preferred embodiment, Fig. 9 B is the flow chart of the cutting method of the present invention the 5th preferred embodiment piezoelectric ink jet head braking plate, as shown in Figure 9 A, the piezoelectric ink jet head 9 of the present embodiment is a sandwich construction, same system is arranged by an oscillating plate and multiple plate (non-icon) storehouse and forms, and piezoelectric ink jet head 9 has a feed flow runner 71 and multiple ink jet unit 911, 912, 913, 914, wherein, in the present embodiment, the plurality of ink jet unit 911, 912, 913, 914 is be distributed in four different quadrants and be symmetrically set, ink jet unit 911, 912, 913, 914 have a pressure cavity (not shown) respectively, and piezoelectric ink jet head 9 more comprises a jet orifice plate (non-icon) with the plurality of spray orifice 93, in ink jet unit 911, 912, 913, 914 respectively correspondence one spray orifice 93 is set, and ink jet unit 911, 912, 913, the pressure cavity of 914 is all connected with feed flow runner 71, and spray printing fluid can be flowed in each pressure cavity by feed flow runner 71, and in ink jet unit 911, 912, 913, the pressure cavity place of 914 is provided with an actuating unit 92, wherein, actuating unit 92 be can by but do not limit by lead zirconate titanate (Lead Zirconate Titanate, PZT) piezoelectric formed, can cut actuating unit 92 by a cutting equipment, make actuating unit 92 correspond to each ink jet unit 911, 912, 913, the place of the pressure cavity of 914 produces a braking plate, the braking plate 921 namely shown in 9A and 9C figure respectively, 922, 923, 924, braking plate 921, 922, 923, 924 are formed at ink jet unit 911 respectively, 912, 913, the pressure cavity of 914 is arranged in different quadrant and arranges in mutually corresponding, each braking plate 921 again, 922, 923, the Aspect Ratio of 924 its sizes is 2 or following, and optionally receives a drive singal V and action, and each spray orifice 93 is formed at corresponding braking plate 921 respectively, 922, 923, 924 generally in the relative position in putting.

Wherein, the volume of each pressure cavity and the roughly proportional relation of the size of braking plate 921,922,923,924 and the aperture of each spray orifice 93, whereby, the selective reception drive singal V of each braking plate 921,922,923,924, drive singal V adjusts according to the aperture of each spray orifice 93 and drop characteristics, to drive the plurality of braking plate 921,922,923,924 with multiple frequency action, spray orifice 93 spray printing is made to go out the drop of different size and different viscosity.

Refer to Fig. 9 A and 9B, wherein Fig. 9 B is the flow chart of the cutting method of the piezoelectric ink jet head braking plate of the present invention the 5th preferred embodiment, as shown in the figure, the cutting method system of the piezoelectric ink jet head braking plate of the present embodiment comprises the following step: first, there is provided piezoelectric ink jet head 9, its cording has a feed flow runner 71 and multiple ink jet unit 911, 912, 913, 914, wherein each ink jet unit 911, 912, 913, 914 have the pressure cavity (as shown in step S91) be connected with feed flow runner 71 respectively, and in the present embodiment, the plurality of ink jet unit 911, 912, 913, 914 is be distributed in four different quadrants and be symmetrically set, then, in ink jet unit 911, 912, 913, arrange an actuating unit 92 above the pressure cavity of 914, actuating unit 92 comprises multiple braking plate 921, 922, 923, 924, and braking plate 921, 922, 923, 924 are formed at ink jet unit 911 respectively, 912, 913, in the pressure cavity of 914, and optionally receive drive singal V and action (as shown in step S92).

Follow-up, set each ink jet unit 911, 912, 913, the actuating area of 914, the cutting distance of one first direction and the plurality of ink jet unit 911, 912, 913, spacing distance (as shown in step S93) between 914, wherein this first direction can be but is not limited to X-direction, and the plurality of ink jet unit 911, 912, 913, the cutting distance of this first direction of this ink jet unit neighbouring in 914 is equal, be tied to form upper and lower relation between ink jet unit 911 and 912 as shown in Figure 9 A to arrange, namely be symmetrically set in the mode of longitudinal arrangement, therefore ink jet unit 911 and 912 is equal in the cutting distance X6 system of X-direction, in addition, be tied to form upper and lower relation between ink jet unit 913 and 914 equally to arrange, namely be symmetrically set in the mode of longitudinal arrangement, therefore ink jet unit 913 and 914 is equal in the cutting distance X8 system of X-direction, as the plurality of ink jet unit 911, 912, 913, namely spacing distance between 914 distinguishes spacing distance X7 as shown in Figure 9 A, Y12.In addition, in the plurality of ink jet unit 911,912,913,914, the actuating area of ink jet unit 914 is maximum and the actuating area of ink jet unit 911 is minimum, and therefore the actuating area of ink jet unit 914 is multiplied with the actuating area of ink jet unit 911 is that the actuating area equaling ink jet unit 912,913 is multiplied.

Then, each ink jet unit 911 set by step S93, 912, 913, the actuating area of 914 and the cutting distance of this first direction, namely in the cutting distance X6 of X-direction, X8 calculates each ink jet unit 911, 912, 913, 914 in the cutting distance of second direction, and wherein this second direction can be but is not limited to Y-direction, and the plurality of ink jet unit 911, 912, 913, in 914, the cutting distance of this second direction of this ink jet unit that left and right is adjacent is equal, and the plurality of ink jet unit 911, 912, 913, it is equal other to activate area and be multiplied (as shown in step S94) that actuating area maximum in 914 is multiplied with minimum actuating area, be tied to form left-right relation between ink jet unit 911 and 913 as shown in Figure 9 A to arrange, namely be symmetrically set in transversely arranged mode, therefore ink jet unit 911 and 913 is equal in the cutting distance Y13 system of Y-direction, and between ink jet unit 912 and 914, be tied to form left-right relation setting equally, namely be symmetrically set in transversely arranged mode, therefore ink jet unit 912 and 914 is equal in the cutting distance Y11 system of Y-direction.

Follow-up, multiple alignment mark 75 can be indicated on this piezoelectric ink jet head 9, such as: indicate the alignment mark 75 presenting L-type with hatched manner, actuating unit 92 is fixedly arranged in scope that the plurality of alignment mark 75 formed, multiple ink jet unit 911 is arranged to make actuating unit 92 may correspond to, 912, 913, above the pressure cavity of 914 (as shown in step S95), certainly, the locate mode of actuating unit 92 of the present invention is not limited to be implemented with hatched manner sign alignment mark 75, and alignment mark 75 is not limited to L-type, any reaching makes actuating unit 92 be fixedly arranged in multiple ink jet unit 911, 912, 913, mode above the pressure cavity of 914 is the scope that the present invention protects.

Then, with the plurality of ink jet unit 911 of a cutting equipment set by step S93, 912, 913, 914 in the cutting distance of first direction, the plurality of ink jet unit 911, 912, 913, spacing distance between 914, and step S94 calculates each ink jet unit 911 of gained, 912, 913, 914 cut, namely according to ink jet unit 911 in the cutting distance of a second direction this actuating unit 92, 912 in the cutting distance 62 of X-direction, ink jet unit 913, 914 in the cutting distance X8 of X-direction, the plurality of ink jet unit 911, 912, 913, spacing distance X7 between 914, Y12, and ink jet unit 911, 913 in the cutting distance Y13 of Y-direction, ink jet unit 912, 914 cut in the cutting distance Y11 of Y-direction this actuating unit 92, form a braking plate, the braking plate 921 namely shown in 9A and 9C figure to make actuating unit 92 respectively at place's correspondence of each this pressure cavity, 922, 923, 924, and make respectively this spray orifice be formed at corresponding respectively this braking plate respectively generally in the relative position (as shown in step S96) in putting, whereby, the braking plate 921 of each pressure cavity tool predetermined area respectively, 922, 923, 924, and optionally receive drive singal V action, drive singal V adjust according to the aperture of each spray orifice 93 and drop characteristics, to drive braking plate 921, 922, 923, 924, with multiple frequency action, make braking plate 921, 922, 923, 924 corresponding different sizes select action from the drop of different viscosity.

In the present embodiment, can according to cutting distance Y11, Y13 and spacing distance Y12 indicates line of cut C1 ~ C4 on actuating unit 92, and according to cutting distance X6, X8 and spacing distance X7 indicates line of cut C5 ~ C8 on actuating unit 92, and wafer cutting equipment is cut along line of cut C1 ~ C8 actuating unit 92, can cut and form braking plate 921 on actuating unit 92, 922, 923, 924, the order that the order of certain wafer cutting equipment cutting is not limited to according to line of cut C1 ~ C8 is cut, cutting sequence can be changed according to substantial evidence demand, and the spendable cutting mode of the present invention be also not limited to hatched manner indicate line of cut implement, any can according to multiple ink jet unit 911, 912, 913, 914 in the cutting distance of first direction, multiple ink jet unit 911, 912, 913, spacing distance between 914, and each the plurality of ink jet unit 911, 912, 913, 914 in a second direction cutting distance and on actuating unit 92 cutting formed braking plate 921, 922, 923, the mode of 924 is the scope that the present invention protects.

Wherein, the cutting equipment that the present embodiment uses can be but not be limited to a wafer cutting equipment, such as: laser board, finally, the waste material in actuating unit 92 except the braking plate 921,922,923,924 shown in braking plate and Fig. 9 A is removed the piezoelectric ink jet head 9 that can be formed as shown in Figure 9 C.

In the present embodiment, braking plate 921, 922, 923, 924 can be different size and to be distributed in four different quadrants and to be symmetrically set, and braking plate 921, 922, 923, the size of the first direction of braking plate neighbouring in 924 is identical, the size of the second direction of the braking plate that left and right is adjacent is that identical and maximum actuating area is multiplied with minimum actuating area is equal other to activate area and be multiplied, therefore general chip cutting equipment can be used to cut out actuating unit 92, can reduce outside manufacturing cost, its waste material also uses laser cutting processing procedure to come few compared with the first embodiment, and the configuration of the present embodiment is separately had living space and is utilized optimized benefit, therefore can comparatively the second preferred embodiment be greater to make the spacing distance between each ink jet unit, the situation that more can reduce fluid improper intercommunication (cross-talk) between pressure cavity occurs.For example: if the actuating area of the braking plate shown in Figure 1A 12 is 10 units, the actuating area of the braking plate 921,922,923,924 then shown in Fig. 9 A can be respectively about 3,5,7.5,12.5 units, its X, Y-direction size then as shown in the following Table II, meet 3 and 12.5 unit ares and are multiplied and equal the relation that 5 and 7.5 unit ares are multiplied.Similarly, the length-width ratio of its braking plate 921,922,923,924 all controls about 2 or following, so as not to braking plate 921,922,923,924 long and affect action.

Table two

And the aperture of the spray orifice 93 of each ink jet unit 911,912,913,914 roughly with the size of corresponding braking plate 921,922,923,924 and the proportional relation of area of pressure cavity, the aperture of the spray orifice 93 namely corresponding to braking plate 921,922,923,924 can be respectively such as 30,50,75,120um, certainly, the actuating area of braking plate 921,922,923,924 and the pore size of corresponding spray orifice 93, not as limit, can change according to the demand of reality.In addition, each braking plate 921,922,923,924 is a corresponding collocation spray orifice 93 all, and spray orifice 93 is generally relative to the braking plate 921,922,923,924 corresponding to it symmetrically or in putting, and distance in the case between each spray orifice 93 is usual and unequal.Therefore, if piezoelectric ink jet head 9 has the consideration of spray printing while of mending point or many spray orifices 93, also the distance between spray orifice 93 can be designed to equal, make the position shown in Fig. 9 C into by spray orifice 93 position shown in Fig. 9 A, distance between adjacent two jet orifice 93 can be 4064um, but not as limit.

In addition, the order that braking plate 921,922,923,924 is put is not limited to the aspect shown in Fig. 9 C, can adjust according to the demand of actual spray printing.

Moreover the braking plate quantity that piezoelectric ink jet head of the present invention configures is not limited to 4, also configurable more than 4 or below, can adjust according to the area of the space of piezoelectric ink jet head and braking plate and its X, Y-direction size allotment situation.

In sum, the piezoelectric ink jet head with multiple braking plate of the present invention is by arranging single pressure cavity and multiple braking plate, and adjust drive singal to drive wherein one or more braking plates simultaneously according to different demand, can reach spray printing different size, different viscosity drop and increase the effect such as inking frequency, can by the magnitude of voltage of adjustment drive singal when spray printing low-viscosity drop.

Moreover, cutting method by inkjet head piezoelectric actuator unit of the present invention is mainly the actuating area utilizing each ink jet unit of setting, a braking plate is produced respectively with the place making each ink jet unit in piezoelectric ink jet head of the present invention arrange a pressure cavity, can select to drive suitable braking plate with spray printing different size according to different spray printing demand, the drop of different viscosity, the present invention can select drive suitable braking plate and achieve the goal with suitable drive singal magnitude of voltage flexibly, such as only need select to activate the less braking plate of area to operate and the magnitude of voltage reducing driving voltage can meet demand when spray printing low-viscosity drop, and adopt the mode of the magnitude of voltage reducing drive singal more can avoid unnecessary energy dissipation, a large-sized braking plate is configured to be applicable to the fluid spray printing of various different viscosity to solve known piezoelectric ink jet head, but need braking plate can be driven to operate with larger drive singal, make the excessive drive singal when spray printing low-viscosity drop can cause the shortcomings such as unnecessary energy dissipation.

The present invention must be appointed by person familiar with the technology and executes craftsman and to think and for modifying as all, so neither de-if attached claim institute is for Protector.

Claims (17)

1. a piezoelectric ink jet head, comprise at least one ink jet unit and a feed flow runner, this ink jet unit comprises a pressure cavity and an oscillating plate, wherein, and this pressure cavity and this feed flow flow passage, this oscillating plate is adjacent to this pressure cavity;

One jet orifice plate, this jet orifice plate correspondence respectively this ink jet unit forms a spray orifice respectively, and this spray orifice and this pressure cavity and this feed flow flow passage, in order to spray printing drop; And

One actuating unit, is arranged on this oscillating plate, and corresponding with this pressure cavity, this actuating unit comprise to should pressure cavity cutting formed multiple braking plates, respectively this braking plate receives a drive singal action respectively;

Wherein, this drive singal of the selective reception of each braking plate, to drive the plurality of braking plate with multiple frequency action, this drive singal adjusts according to the aperture of this spray orifice and drop characteristics, makes this spray orifice spray printing go out the drop of different size and different viscosity.

2. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate and one second braking plate, and this first braking plate and this second braking plate one of them receive separately this drive singal, to control this braking plate action single.

3. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate and one second braking plate, and this first braking plate and this second braking plate receive this drive singal of homophase displacement simultaneously, becomes homophase displacement action to make both.

4. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate and one second braking plate, and this first braking plate and this second braking plate receive this drive singal of anti-phase displacement simultaneously, becomes anti-phase displacement action to make both.

5. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate and one second braking plate, and this first braking plate and this second braking plate receive this drive singal in turn, becomes action in turn to make both.

6. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate, one second braking plate and one the 3rd braking plate, this second braking plate is positioned between this first braking plate and the 3rd braking plate, this spray orifice correspondence is made to be arranged at this second braking plate, and this first braking plate, this second braking plate and the 3rd braking plate one of them receive separately this drive singal, to control this braking plate single in vibration area action.

7. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate, one second braking plate and one the 3rd braking plate, this second braking plate is positioned between this first braking plate and the 3rd braking plate, this spray orifice correspondence is made to be arranged at this second braking plate, and this first braking plate, this second braking plate and the 3rd braking plate receive this drive singal of homophase displacement, become homophase displacement action to make three simultaneously.

8. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate, one second braking plate and one the 3rd braking plate, this second braking plate is positioned between this first braking plate and the 3rd braking plate, this spray orifice correspondence is made to be arranged at this second braking plate, and this first braking plate, this second braking plate and the 3rd braking plate wherein two receive this drive singal, to make the several braking plate action of part in the plurality of braking plate.

9. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate, one second braking plate and one the 3rd braking plate, this second braking plate is positioned between this first braking plate and the 3rd braking plate, this spray orifice correspondence is made to be arranged at this second braking plate, and this first braking plate, this second braking plate and the 3rd braking plate receive this drive singal simultaneously, make to become anti-phase displacement action between two adjacent braking plates.

10. piezoelectric ink jet head as claimed in claim 1, it is characterized in that, the plurality of braking plate comprises one first braking plate, one second braking plate and one the 3rd braking plate, this second braking plate is positioned between this first braking plate and the 3rd braking plate, this spray orifice correspondence is made to be arranged at this second braking plate, and this first braking plate, this second braking plate and the 3rd braking plate receive this drive singal in turn, become action in turn to make three.

11. piezoelectric ink jet heads as claimed in claim 1, is characterized in that, this spray orifice aperture is between 30 to 120um, and the magnitude of voltage of this drive singal is better with +/-30 volts.

12. 1 kinds of piezoelectric ink jet heads, it comprises:

Multiple ink jet unit and a feed flow runner, respectively this ink jet unit has the pressure cavity be connected with this feed flow runner respectively;

One jet orifice plate, this jet orifice plate correspondence respectively this ink jet unit forms a spray orifice respectively, in order to spray printing drop; And

One actuating unit, this actuating unit comprises multiple braking plates that cutting is formed, respectively this braking plate correspondence respectively this pressure cavity respectively, and receives a drive singal action respectively;

Wherein, the roughly proportional relation in aperture of the volume of each pressure cavity and the size of this braking plate and this spray orifice, whereby, respectively this drive singal of the selective reception of this braking plate, this drive singal adjusts according to the aperture of this spray orifice and drop characteristics, to drive the plurality of braking plate with multiple frequency action, this spray orifice spray printing is made to go out the drop of different size and different viscosity.

13. piezoelectric ink jet heads as claimed in claim 12, is characterized in that, this actuating unit comprises with the plurality of braking plate of laser cutting device cutting formation.

14. 1 kinds of piezoelectric ink jet heads, it comprises:

Multiple ink jet unit and a feed flow runner, respectively this ink jet unit has the pressure cavity be connected with this feed flow runner respectively, and respectively this pressure cavity equidistant and other direction Unequal distance arrangement with a direction equal length;

One jet orifice plate, this jet orifice plate correspondence respectively this ink jet unit forms a spray orifice respectively, in order to spray printing drop; And

One actuating unit, this actuating unit comprises multiple braking plates that cutting is formed, respectively this braking plate respectively correspondence be arranged at respectively this pressure cavity place, and respectively the length-width ratio of this braking plate is less than 2, to receive a drive singal action respectively;

Wherein, the respectively roughly proportional relation in the aperture of the volume of this pressure cavity and the size of this braking plate and this spray orifice, whereby, respectively this drive singal of the selective reception of this braking plate, this drive singal adjusts according to the aperture of this spray orifice and drop characteristics, to drive the plurality of braking plate with multiple frequency action, this spray orifice spray printing is made to go out the drop of different size and different viscosity.

15. piezoelectric ink jet heads as claimed in claim 14, is characterized in that, this actuating unit comprises the plurality of braking plate formed with wafer cutting equipment cutting.

16. 1 kinds of piezoelectric ink jet heads, it comprises:

Multiple ink jet unit and a feed flow runner, respectively this ink jet unit has the pressure cavity be connected with this feed flow runner respectively;

One jet orifice plate, this jet orifice plate correspondence respectively this ink jet unit forms a spray orifice respectively, in order to spray printing drop; And

One actuating unit, this actuating unit comprises multiple braking plates that cutting is formed, respectively this braking plate respectively correspondence be arranged at each pressure cavity and be arranged in different quadrant and arrange in mutually corresponding, respectively the Aspect Ratio of this its size of braking plate is 2 or following again, to receive a drive singal action respectively;

Wherein, the respectively roughly proportional relation in the aperture of the volume of this pressure cavity and the size of this braking plate and this spray orifice, whereby, respectively this drive singal of the selective reception of this braking plate, this drive singal adjusts according to the aperture of this spray orifice and drop characteristics, to drive the plurality of braking plate with multiple frequency action, this spray orifice spray printing is made to go out the drop of different size and different viscosity.

17. piezoelectric ink jet heads as claimed in claim 16, is characterized in that, this actuating unit comprises with the plurality of braking plate of wafer cutting equipment cutting formation.