CN1330492C - Structure of ink gun and ink jet printing system - Google Patents
Structure of ink gun and ink jet printing system Download PDFInfo
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- CN1330492C CN1330492C CNB031233198A CN03123319A CN1330492C CN 1330492 C CN1330492 C CN 1330492C CN B031233198 A CNB031233198 A CN B031233198A CN 03123319 A CN03123319 A CN 03123319A CN 1330492 C CN1330492 C CN 1330492C
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- ink
- heating chip
- heating
- spray nozzle
- nozzle sheet
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Abstract
The present invention relates to a structure of an ink gun. The present invention is used for jetting ink arranged in an ink storage tank of an ink box on an ink jet medium. The present invention comprises a heating chip, a barrier layer and a jet hole sheet, wherein the heating chip is substantially in a rectangle shape; the barrier layer is formed on the heating chip, and the right and the left side parts of the heating chip are exposed; the barrier layer simultaneously forms an ink supply flow passage and a plurality of ink cavities on the heating chip; the jet hole sheet is wider than the heating chip; a plurality of jet holes are arranged on the jet hole sheet correspondingly to the ink cavities; when the jet hole sheet is combined with the heating chip, the jet hole sheet and the exposed right and the left side parts of the heating chip simultaneously form a first and a second ink supply holes; thus, the ink arranged in the ink storage tank of the ink box are jetted on the ink jet medium from the jet holes through the first and the second ink supply holes through the ink supply flow passage and the ink cavities.
Description
(1) technical field
The invention relates to a kind of ink gun structure of ink cartridges, refer to a kind of ink gun structure that dwindles the heating chip size that has especially.The present invention is also about a kind of ink-jet print system that uses this ink gun structure.
(2) background technology
Along with personal computer develops gradually, ink-jet printer (ink jet printer) has become very general interface equipment, is widely used in family, personal work chamber or even all trades and professions.The major advantage of ink-jet printer is cheap, the low and good print quality of when operation noise, and printable in various medium, for example general paper, special inkjet printing paper, photo paper and special-purpose transparency etc.
Control ink gun (printhead) disengages one of key factor that ink droplet need consider for the design ink cartridges to the mechanism of ink-jet medium.Generally speaking, the mode of ink gun ejection ink droplet mainly contains two kinds of hot bubble type (thermal bubbletype) and piezoelectric types (micro piezo type).With the hot bubble type ink jet head is example, and its operating principle is to utilize heating resistor (heater resistor) heating to make it to produce bubble and then ink is squeezed, and makes it to be sprayed onto on the ink-jet medium by a plurality of spray orifices.
Please see Figure 1, known ink gun structure mainly is made up of 13 of a heating chip (heater IC) 11, one barrier layer (barrier layer) 12 and one spray nozzle sheets (nozzle plate).Heating chip 11 is for known to the personnel that generally have the knack of this technology, and it is for having the chip of resistance heater (resistor heater), for ease of describing, hereinafter to be referred as heating chip (heater IC).Heating chip 11 comprises 110, the one groups of weld pads (contact pad) 111 that center on the heating resistor (not shown) of ink supply port and be positioned at the heating chip both sides of ink supply port (inkslot) that are arranged at central authorities.Form a plurality of inking chambers (ink chamber) 121 in the barrier layer 12, and 12 of the barrier layers on heating chip 11 form ink supply runner (ink channel does not show).A plurality of spray orifices 131 corresponding to inking chamber 121 are then arranged on the spray nozzle sheet 13.
Please see Figure 2, the step that ink gun is assembled in ink cartridges (ink cartridge) is mainly as follows.At first make spray nozzle sheet (nozzle plate) 13 precisions to being positioned at heating chip 11, to form an IC assembly (ICassembly); The IC assembly is finished with the circuit soft board (TAB) of going into signal for output to be electrically connected; At last, utilize adhesive agent with IC assembly gluing on the ink gun load bearing seat 21 of ink cartridges body 2 bottoms, finish the ink gun assembly working immediately.Please cooperate and see Fig. 1 and Fig. 2, when using this ink cartridges, be stored in ink duct (ink reservoir in the ink cartridges body 2, demonstration) ink at first flow to bottom outlet 22 from ink duct, then flow into the ink supply port 110 of heating chip 11 central authorities, enter 11 formed ink supply runners of barrier layer 12 and heating chip, flow to inking chamber 121 again, last then utilize generation bubble that heating resistor heating makes and then ink is squeezed, and make it to be sprayed onto on the ink-jet medium by the spray orifice on the spray nozzle sheet 13 131.
The ink gun structure of above-mentioned usefulness faces following problem:
(1) step that forms the central ink supply port 110 of heating chip 11 uses sandblast processing procedure or laser beam perforation processing procedure to carry out usually, and wherein sandblast processing procedure cleanliness factor is relatively poor, and the laser beam perforation cost is high and the problem of materials limitations arranged.
(2) process that forms heating chip 11 central ink supply ports 110 makes heating chip 11 produce cracks easily, thereby easily causes heating chip 11 fractures or circuit impaired in successive process or normal use, so that ink gun can't normal running.
(3) heating chip 11 with central ink supply port 110 has the structural strength that weakens, thereby the fracture chance improves, and causes acceptance rate to reduce.
(4) two row's heating resistors around central ink supply port 110 both sides are shared an ink supply port on the heating chip 11, therefore the phenomenon that has ink supply to have some setbacks easily takes place, and also easily produce fluid and crosstalk (cross-talk), each interactive phenomenon in ink-jet chamber influences the ink gun service behaviour unfriendly.
(5) in order to make the cause of central ink supply port 110, so heating chip 11 need have sizable size inevitably, and this has improved the cost of making heating chip greatly.
(3) summary of the invention
Main purpose of the present invention provides a kind of ink gun structure, has the problem that black nozzle structure is faced of commonly using of central ink supply port with solution.
A kind of ink gun structure according to an aspect of the present invention, in order to the ink in the ink cartridges ink duct is sprayed onto on the ink-jet medium, this ink gun structure comprises:
One load bearing seat has this first supporting region and this second supporting region that are positioned on the different level;
One heating chip, rectangular, have a plurality of heating resistors on it, and have the weld pad that is electrically connected usefulness for flexible circuit board in both sides of the edge;
One barrier layer is to be formed on this heating chip, and exposes left and right sides part heating chip, and wherein this barrier layer forms ink supply runner and a plurality of inking chamber on this heating chip; And
One spray nozzle sheet, its width is big than the width of this heating chip, and the weld pad zone that corresponds to heating chip when combining with this heating chip is provided with breach, and this gap width is to cover on the heating chip surface, and is provided with a plurality of spray orifices with respect to this a plurality of inking chambers place;
By this, this heating chip and this spray nozzle sheet are carried on respectively on first supporting region and second supporting region of ink gun load bearing seat of this ink cartridges, impel this spray nozzle sheet to combine with this heating chip, and common one first and one second ink supply port that forms of the left and right sides part of this spray nozzle sheet and heating chip, making the ink in the ink cartridges ink duct is to reach these a plurality of inking chambers via this first and second ink supply port by this ink supply runner, and then is sprayed onto on these ink-jet medium through these a plurality of spray orifices.
Ink gun structure as described, wherein this heating chip is provided with a heating resistor with respect to each inking chamber place.
The ink gun structure of ink gun structure as described, wherein the thickness of this barrier layer is 20 to 40 microns.
Ink gun structure as described, wherein this spray nozzle sheet is to be " H " shape.
A kind of ink-jet print system according to a further aspect of the invention, it comprises:
The black casket of one storage is in order to hold ink;
One heating chip, rectangular, have a plurality of heating resistors on it, and have the weld pad that is electrically connected usefulness for flexible circuit board in both sides of the edge;
One spray nozzle sheet, its width is big than the width of this heating chip, and the weld pad zone that corresponds to heating chip when combining with this heating chip is provided with breach, and this gap width is to cover on the heating chip surface, and establishes a plurality of spray orifices for this a plurality of heating resistors place; And
One load bearing seat, it comprises first supporting region and second supporting region in order to carry this heating chip and this spray nozzle sheet respectively, and this first supporting region and this second supporting region are to be positioned on the different level.
Ink-jet print system as described, wherein this spray nozzle sheet is to be " H " shape.
According to aforesaid ink gun structure of the present invention and ink-jet print system, have following advantage:
(1) the present invention forms ink gun ink supply aperture process and need not carry out sandblast or laser beam perforation processing procedure, thereby not only can improve the production acceptance rate, also reduces cost of manufacture widely.
Therefore (2) ink gun structure of the present invention does not have central ink supply aperture, does not have heating chip that prior art faces and produces shortcomings such as crack, heating chip fracture, structural strength be low, helps to promote the product fine rate.
(3) two of heating chip both sides row's heating resistors possess indivedual ink supply ports, and ink supply is comparatively smooth and easy, can reduce fluid (cross-talk) problem of crosstalking, and then improve the ink gun service behaviour.
(4) the heating chip middle section can be used to make the IC circuit, thus can significantly reduce the heating chip size, and then reduce the cost of heating chip.
(4) description of drawings
By following in conjunction with the accompanying drawings to the detailed description of embodiment and can more clearly understand the present invention.
Fig. 1 is the ink gun structure of prior art.
Fig. 2 is the situation that ink gun is assembled in ink cartridges in the prior art.
Fig. 3 is the ink gun structure according to first embodiment of the invention.
Fig. 4 is the situation that ink gun according to the present invention is assembled in ink cartridges.
Fig. 5 is the partial enlarged drawing according to Fig. 4.
Fig. 6 is that ink gun according to the present invention encapsulates three-dimensional disassembly diagram.
Fig. 7 is the ink gun structure according to second embodiment of the invention.
(5) specific embodiment
Please see Figure 3, the ink gun structure of first preferred embodiment mainly is made up of 33 of a heating chip (heater IC) 31, one barrier layer (barrier layer) 32 and one spray nozzle sheets (nozzle plate) according to the present invention.Heating chip 31 is rectangular substantially, and it has weld pad 311 in both sides of the edge up and down.Barrier layer 32 is to be formed on the heating chip 31, and forms ink supply runner and a plurality of inking chambers 321 jointly with heating chip 31.Heating chip 31 is provided with a heating resistor (not shown) with respect to each inking chamber 321 place.Spray nozzle sheet 33 is " H " font haply, and its top is provided with a plurality of spray orifices 331 corresponding to inking chamber 321.
Characteristics of the present invention are, when being formed on the heating chip 31, can expose barrier layer 32 left and right sides part heating chip 313 and 314 (meaning barrier layer 32 is " I " font substantially), and the width of spray nozzle sheet 33 is big than heating chip 33, therefore when spray nozzle sheet 33 combines with heating chip 31, spray nozzle sheet 33 and the left and right sides part heating chip 313 that exposes that is not covered by barrier layer 32 and 314 will form the first ink supply port (not shown) and the second ink supply port (not shown) jointly.Because the thickness of barrier layer 32 is 20 to 40 microns, so the height of first and second ink supply port is approximately 20 to 40 microns.
In the present embodiment, the equal in length of the length of heating chip 31 and spray nozzle sheet 33 is electrically connected with spray nozzle sheet 33 generations for fear of heating chip 31, and spray nozzle sheet 33 has first breach 332 and second breach 333, in order to do when spray nozzle sheet 33 combines with heating chip 31, can expose weld pad 311.
Please see Figure 4, the step that ink gun is assembled in ink cartridges is mainly as follows.At first make spray nozzle sheet 33 precisions to being positioned at heating chip 31, to form an IC assembly (IC assembly); Then utilize adhesive agent with IC assembly gluing on the ink gun load bearing seat 41 of ink cartridges body 4 bottoms, finish the ink gun assembly working immediately.As Fig. 4 and shown in Figure 5, ink gun load bearing seat 41 has first supporting region 411 and second supporting region 412 in order to carrying heating chip and spray nozzle sheet respectively, first supporting region 411 and second supporting region 412 are to be positioned on the different level, help to improve the sealing of ink, in case the leak-stopping China ink.Please see Figure 6, the first supporting regions 411 again and second supporting region, 412 peripheries can have groove 413,, certainly also can be platform, and groove can hold adhesive agent with groove for adhesive agent overflow or distribution.
Please cooperate and see Fig. 3 and Fig. 4, when using this ink cartridges, the ink that is stored in the ink cartridges body 4 interior ink duct (not shown)s at first flow to bottom outlet 42 from ink duct, then flow into the ink supply port of 33 of heating chip 31 and spray nozzle sheets, enter 31 formed ink supply runners of barrier layer 32 and heating chip again, flow to inking chamber 321 again, then utilize heating resistor heating to produce bubble at last and then ink is squeezed, and make it to be sprayed onto on the ink-jet medium and be sprayed onto on the ink-jet medium by the spray orifice on the spray nozzle sheet 33 331 by a plurality of spray orifices.
Fig. 7 shows the ink gun structure of second preferred embodiment according to the present invention, except the length of heating chip 31 than the length of spray nozzle sheet 33 for long, with outside avoiding heating chip 31 and spray nozzle sheet 33 generations being electrically connected, all the other are identical with Fig. 3 structure, do not give unnecessary details at this.
Therefore, ink gun structure provided by the present invention has makes the characteristic simple, that the product fine rate is good, size is dwindled and cost is low, and can exempt the shortcoming that runs in the prior art.
Claims (6)
1. an ink gun structure in order to the ink in the ink cartridges ink duct is sprayed onto on the ink-jet medium, is characterized in that, comprises:
One load bearing seat has this first supporting region and this second supporting region that are positioned on the different level;
One heating chip, rectangular, have a plurality of heating resistors on it, and have the weld pad that is electrically connected usefulness for flexible circuit board in both sides of the edge;
One barrier layer is to be formed on this heating chip, and exposes left and right sides part heating chip, and wherein this barrier layer forms ink supply runner and a plurality of inking chamber on this heating chip; And
One spray nozzle sheet, its width is big than the width of this heating chip, and the weld pad zone that corresponds to heating chip when combining with this heating chip is provided with breach, and this gap width is to cover on the heating chip surface, and is provided with a plurality of spray orifices with respect to this a plurality of inking chambers place;
By this, this heating chip and this spray nozzle sheet are carried on respectively on first supporting region and second supporting region of ink gun load bearing seat of this ink cartridges, impel this spray nozzle sheet to combine with this heating chip, and common one first and one second ink supply port that forms of the left and right sides part of this spray nozzle sheet and heating chip, making the ink in the ink cartridges ink duct is to reach these a plurality of inking chambers via this first and second ink supply port by this ink supply runner, and then is sprayed onto on these ink-jet medium through these a plurality of spray orifices.
2. ink gun structure as claimed in claim 1 is characterized in that, this heating chip is provided with a heating resistor with respect to each inking chamber place.
3. ink gun structure as claimed in claim 1 is characterized in that, the thickness of this barrier layer is 20 to 40 microns.
4. ink gun structure as claimed in claim 1 is characterized in that, this spray nozzle sheet is to be " H " shape.
5. an ink-jet print system is characterized in that, comprises:
The black casket of one storage is in order to hold ink;
One heating chip, rectangular, have a plurality of heating resistors on it, and have the weld pad that is electrically connected usefulness for flexible circuit board in both sides of the edge;
One spray nozzle sheet, its width is big than the width of this heating chip, and the weld pad zone that corresponds to heating chip when combining with this heating chip is provided with breach, and this gap width is to cover on the heating chip surface, and establishes a plurality of spray orifices for this a plurality of heating resistors place; And
One load bearing seat, it comprises first supporting region and second supporting region in order to carry this heating chip and this spray nozzle sheet respectively, and this first supporting region and this second supporting region are to be positioned on the different level.
6. ink-jet print system as claimed in claim 5 is characterized in that, this spray nozzle sheet is to be " H " shape.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031233198A CN1330492C (en) | 2003-04-22 | 2003-04-22 | Structure of ink gun and ink jet printing system |
| DE602004026002T DE602004026002D1 (en) | 2003-04-22 | 2004-04-22 | Assembly structure of a printhead |
| AT04009584T ATE461044T1 (en) | 2003-04-22 | 2004-04-22 | ASSEMBLY STRUCTURE OF A PRINT HEAD |
| BRPI0401976A BRPI0401976B1 (en) | 2003-04-22 | 2004-04-22 | mounting frame for a printhead |
| EP04009584A EP1473161B1 (en) | 2003-04-22 | 2004-04-22 | Assembling structure of printhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031233198A CN1330492C (en) | 2003-04-22 | 2003-04-22 | Structure of ink gun and ink jet printing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1539640A CN1539640A (en) | 2004-10-27 |
| CN1330492C true CN1330492C (en) | 2007-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031233198A Expired - Lifetime CN1330492C (en) | 2003-04-22 | 2003-04-22 | Structure of ink gun and ink jet printing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1330492C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421947C (en) * | 2005-12-30 | 2008-10-01 | 研能科技股份有限公司 | Ink jet head structure |
| CN106515219B (en) * | 2016-10-14 | 2019-08-27 | 苏州锐发打印技术有限公司 | A kind of printing equipment and its inkjet print head |
| TWI760912B (en) * | 2020-11-03 | 2022-04-11 | 研能科技股份有限公司 | Wafer structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6322200B1 (en) * | 1999-10-29 | 2001-11-27 | Hewlett-Packard Company | Decoupled nozzle plate and electrical flexible circuit for an inkjet print cartridge |
| US6332677B1 (en) * | 1992-04-02 | 2001-12-25 | Hewlett-Packard Company | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer |
| US6378984B1 (en) * | 1998-07-31 | 2002-04-30 | Hewlett-Packard Company | Reinforcing features in flex circuit to provide improved performance in a thermal inkjet printhead |
| CN2626721Y (en) * | 2003-06-09 | 2004-07-21 | 研能科技股份有限公司 | Ink gun structure and ink jet printing system |
-
2003
- 2003-04-22 CN CNB031233198A patent/CN1330492C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332677B1 (en) * | 1992-04-02 | 2001-12-25 | Hewlett-Packard Company | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer |
| US6378984B1 (en) * | 1998-07-31 | 2002-04-30 | Hewlett-Packard Company | Reinforcing features in flex circuit to provide improved performance in a thermal inkjet printhead |
| US6322200B1 (en) * | 1999-10-29 | 2001-11-27 | Hewlett-Packard Company | Decoupled nozzle plate and electrical flexible circuit for an inkjet print cartridge |
| CN2626721Y (en) * | 2003-06-09 | 2004-07-21 | 研能科技股份有限公司 | Ink gun structure and ink jet printing system |
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| Publication number | Publication date |
|---|---|
| CN1539640A (en) | 2004-10-27 |
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