CN1103288C - Pressure regulating device - Google Patents
Pressure regulating device Download PDFInfo
- Publication number
- CN1103288C CN1103288C CN98116197A CN98116197A CN1103288C CN 1103288 C CN1103288 C CN 1103288C CN 98116197 A CN98116197 A CN 98116197A CN 98116197 A CN98116197 A CN 98116197A CN 1103288 C CN1103288 C CN 1103288C
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- Prior art keywords
- ink
- sack
- pressure
- storage trough
- regulating device
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- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 238000003860 storage Methods 0.000 claims abstract description 78
- 238000003825 pressing Methods 0.000 claims description 36
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims 2
- 229910001220 stainless steel Inorganic materials 0.000 claims 2
- 239000010935 stainless steel Substances 0.000 claims 2
- 238000007639 printing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Landscapes
- Ink Jet (AREA)
Abstract
The present invention relates to a pressure regulating device which comprises a bag, a press plate and an elastic device, wherein the bag is placed in an ink storage groove to enable the inside of the bag to be communicated with the outside of the ink storage groove; the press plate is positioned in the ink storage groove, and one surface of the press plate is connected with the outside of the bag; the elastic device is positioned in the ink storage groove and is respectively in contact with one wall surface of the and the press plate in the ink storage groove, and the elastic device is used for providing pressure for the press plate to enable the bag to be expanded and contracted; thus, negative pressure in the ink storage groove can be maintained to be within a definite range.
Description
Technical field
The present invention relates to a kind of pressure-regulating device, particularly relate to the pressure-regulating device that has ink bag in a kind of inkjet-printing device.
Background technology
In existing ink-jet printing technology, control is flow control mode as required with ink by the method that storage trough for ink outputs to the printing paper.
Though as required the seal head of flow control mode can be effectively storage tank in the pen obtain ink and spray ink droplet, flow control mode needs a kind of controlling mechanism as required, makes seal when not printing, ink can not ooze out the seal head.This kind controlling mechanism provides a slight negative pressure at Yin Touchu usually, can not ooze out the seal head to prevent ink.So-called negative pressure is meant and forms partial vacuum in storage trough for ink, and with on the occasion of expression, so the raising of vacuum is represented in the increase of negative pressure, the increase by negative pressure can stop ink to flow out the seal head when measuring negative pressure.Though the increase of negative pressure can stop ink to flow out the seal head, if negative pressure too conference cause seal can't overcome negative pressure ink droplet can't be sprayed.On the other hand, the negative pressure in the storage trough for ink of ink-jet pen must be made corresponding adjusting with the change of ambient pressure, and negative pressure is remained in the suitable scope, makes the normal running of ink-jet pen energy.As, when ambient pressure descends, make the non-leakage negative pressure value that goes out the seal head of ink can be bigger.
A kind of prior art, as United States Patent (USP) the 4th, 509, No. 062 adjuster though can reach the requirement of above-mentioned functions, still has following shortcoming: one is that the working flow of adjuster is limited, and adjustable environmental pressure scope is restricted; It two is the problems of detaching, its will be full of in order in storage tank, to reach minimum sub-atmospheric pressure in the storage tank of ink the quantity of ink that must extract out, extracting out more at most can be just few more for the quantity of ink of printing.
Secondly, as United States Patent (USP) the 5th, 409, No. 134 adjuster, as shown in Figure 1, its structure is very complicated.Its major part comprises a reed 102; One sack 104 is formed by 106,108 encirclements of two thin activity templates; One support member 110 in order to connection sack 104, and provides passage to make air enter sack 104.Alignment pin is arranged on the support member 110 and wheel net 112 is installed.Ventilation silver 114 places between the activity template 106,108, makes air be entered sack 104.Still there is other accessory to make the assembling of this adjuster seem more complicated in addition.
Though can solve above-mentioned adjuster working flow and detach problem as above-mentioned its, its assembled component is too complicated, and production cost is increased.
Summary of the invention
The object of the present invention is to provide a kind of pressure-regulating device, it can overcome the working flow of adjuster and detach problem, can make its assembling easily with simpler member, more can reduce production costs.
The object of the present invention is achieved like this, a kind of pressure-regulating device promptly is provided, which comprises at least: a sack is placed in the storage trough for ink, make the inside of this sack and the outside intercommunication of this storage trough for ink, a side of this sack contacts with the wall of this storage trough for ink; An and elastic device, have one first end and one second end, and be positioned at this storage trough for ink, this first end contacts with the wall of this storage trough for ink, this second end is oppressed this sack in order to a compression stress to be provided, and makes the outside circulation of fluid in this sack and this storage trough for ink, and this elastic device also comprises: a pressing plate, be positioned at this storage trough for ink, this pressing plate is one side and an engage sides of this sack wherein; And one the compression spring, be positioned at this storage trough for ink, the two ends of this compression spring contact with a wall of this storage trough for ink and the another side of this pressing plate respectively, in order to provide pressure in this pressing plate, this sack is stretched, within limits with the negative pressure of keeping this storage trough for ink.
The present invention also provides a kind of pressure-regulating device, which comprises at least: several sacks, be placed in the storage trough for ink, but make the inside of this each sack and the outside intercommunication of this storage trough for ink, respectively a wherein side of this sack contacts with a wherein inner surface of this storage trough for ink; An and elastic device, have one first end and second end, and be positioned at this storage trough for ink, wherein this first end and this second end contact with the wherein another side of this sack respectively, make the outside circulation of fluid in this sack and this storage trough for ink by this elastic device, this elastic device also comprises: several pressing plates are positioned at this storage trough for ink, respectively this pressing plate comprises a first surface and a second surface, and respectively this first surface in this pressing plate contacts with the another side of corresponding respectively this sack; And a compression spring, be positioned at this storage trough for ink, contact with this second surface of this pressing plate respectively respectively, in order to provide pressure, make respectively that this sack stretches in this pressing plate respectively, the negative pressure in this storage trough for ink is maintained in a scope.
The advantage of apparatus of the present invention is that it only is provided with spring, pressing plate and sack, makes this adjusting device can realize its function, and is simple in structure again, and assembling is easy, and cost reduces.
Description of drawings
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is a kind of existing adjuster cutaway view;
Fig. 2 A is the cutaway view that sack expands in the preferred embodiment of the present invention;
Fig. 2 B is the cutaway view that sack is extruded in the preferred embodiment of the present invention;
Fig. 3 A is the cutaway view that sack expands in another preferred embodiment of the present invention;
Fig. 3 B is the compressed cutaway view of sack in another preferred embodiment of the present invention;
See Fig. 2 A and Fig. 2 B, it is the cutaway view of a preferred embodiment of the present invention.
The specific embodiment
At first please refer to Fig. 2 A, it illustrates the cutaway view of an ink-jet pen 300.This ink-jet pen 300 comprises the first side wall 314, second sidewall 316, the 3rd sidewall 318 and lid 320, by the zone that member 314～320 is surrounded, forms a storage trough for ink 310, in order to storage ink.Thermal bubble type seal 312 is installed on the outer surface of the 3rd sidewall 318, and ink is able to be printed on the paper through thermal bubble type seal 312 by storage trough for ink 310.Pressure-regulating device 330 of the present invention is disposed among the ink-jet pen 300.
Refer again to Fig. 2 A, pressure-regulating device 330 is by an elastic device, and it comprises a pressing plate 332, a spring 334 and a sack 336.Wherein sack 336 comprises the first Room 338a and the second Room 338b.The first Room 338a can communicate the fluid in the sack 336 with the external world by a conduit 340, and this conduit 340 runs through lid 320 and tight with it involution.Between the first Room 338a and the second Room 338b port is arranged more, use so that the fluid in the bag can circulate between the first Room 338a and the second Room 338b.
The first side 336a and the second inside surface of side wall 316a of sack 336 join, and the second side 336b of sack 336 and the first surface 332a of pressing plate 332 join.The second surface 332b of pressing plate 332 is supported by an end of spring 334.The other end of spring 334 is supported by the inner surface 314a of the first side wall.
Follow operation with the adjusting device 330 in this ink-jet pen of graphic explanation of Fig. 2 A and Fig. 2 B.
Ink flows in the storage trough for ink 310 via ink inlet 342, and seals with closed cover 344, makes storage trough for ink 310 and outside isolated fully.At this moment, has a minimum sub-atmospheric pressure in the storage trough for ink 310.This minimum sub-atmospheric pressure can prevent to print 312 under the inactive state of not printing, and ink oozes out from seal 312.
When ink-jet pen 300 is printed, because ink exhausts gradually, the vacuum in the storage trough for ink 310 is improved, negative pressure just increases thereupon.Because sack 336 and exterior, so pressure wherein and atmosphere outside are pressed and equated and greater than the pressure in the storage trough for ink.Therefore sack 336 just can expand, shown in Fig. 2 A.Sack 336 by the extruding of 332 pairs of springs 334 of pressing plate, makes the volume reducing of storage trough for ink 310 after expanding, and relatively its vacuum just descends, and can restrain the effect that negative pressure increases effectively, avoids ink to print off from seal 312.
Refer again to Fig. 2 B, when pressure is reduced, for example in the process of air transport.At this moment, because sack 336 and exterior equate and decline thereupon so pressure is wherein pressed with atmosphere outside.Therefore sack 336 just can because of the pressure in the storage trough for ink 310 greater than the pressure in the sack 336, make the corresponding pressing plate application of force extruding of restoring force of spring 334 cause sack 336 to be compressed.After sack 336 was compressed, the vacuums in the storage trough for ink 310 improved, and were able to balance with respect to the atmospheric pressure negative pressure in the external world.Therefore the negative pressure in the storage trough for ink 310 can not descend because of the pressure of environment and lower, so can restrain the effect that negative pressure reduces effectively, avoid ink to ooze out from printing 312.
Therefore, by each other collocation running between spring 334, pressing plate 332 and the sack 336 of pressure-regulating device 330, the negative pressure in the storage trough for ink 310 are maintained within the suitable scope.So the present invention can not only prevent that Heisui River from oozing out from seal 312, and seal 312 can normally print work.
Then please refer to Fig. 3 A and Fig. 3 B, in order to the explanation another embodiment of the present invention.
Use the identical identical member of label representative with Fig. 2 A and Fig. 2 B among Fig. 3 A and Fig. 3 B.
At first the situation that sack 337a and 337b expand is described with reference to figure 3A.
The different sacks that are in present embodiment with last embodiment are divided into independently two sack 337a and 337b.Sack 337a and 337b lay respectively at the both sides of storage trough for ink 310, and respectively have a conduit 340a and 340b and exterior, conduit 340a and 340b and lid 320 tight involutions.
The side of sack 337a is supported by the inner surface 316a of second sidewall 316 of storage trough for ink 310, and the opposite side of sack 337a is supported by the first surface 333a of pressing plate 331a.The side of sack 337b is supported by the inner surface 314a of the first side wall 314 of storage trough for ink 310, and the opposite side of sack 337b is supported by the first surface 335a of pressing plate 331b.Spring 334 is supported between the second surface 335b of the second surface 333b of pressing plate 331a and pressing plate 331b.
When ink-jet pen 300 is printed, because ink exhausts gradually, the vacuum in the storage trough for ink 310 is improved, negative pressure just increases thereupon.Because sack 337a and 337b respectively with exterior, so pressure wherein and atmosphere outside are pressed and are equated and greater than the pressure in the storage trough for ink.Therefore sack 337a and 337b can expand respectively, as shown in Figure 3A.Expand back and by pressing plate 331a and the extruding of 331b to spring 334 of sack 337a and 337b makes the volume reducing of storage trough for ink 310, and relatively its vacuum just descends, and can restrain the effect that negative pressure increases effectively, avoids ink to print off from printing 312.
Refer again to Fig. 3 B, when pressure is reduced, for example in the process of air transport.At this moment, because sack 337a and 337b and exterior equate and decline thereupon so pressure is wherein pressed with atmosphere outside.Therefore sack 337a and 337b just can because of the pressure in the storage trough for ink 310 greater than the pressure in sack 337a and the 337b, the restoring force of spring 334 is pushed the pressing plate application of force causes sack 337a and 337b to be compressed.After sack 337a and 337b were compressed, the vacuums in the storage trough for ink 310 improved, and were kept with respect to the negative pressure of external atmosphere pressure.Therefore the negative pressure in the storage trough for ink 310 can not descend because of the pressure of environment and lower, so can restrain the effect that negative pressure reduces effectively, avoid ink to ooze out from printing 312.
Therefore, each other collocation running between spring 334, pressing plate 331a and the 331b by pressure-regulating device 330 and sack 337a and the 337b can make the negative pressure in the storage trough for ink 310 maintain within the suitable scope.So the present invention can not only prevent ink and ooze out from seal 312, and seal 312 can normally print work.
Therefore, one of characteristics of the present invention are that this pressure-regulating device part is less, only are made of spring, pressing plate and sack, and can reach required function.Part is less, and assembling is more prone to, and more can reduce manufacturing cost.
Another characteristics of the present invention are that the pressure-regulating device part is less, and then increase the space of storage trough for ink, and the ink of the printing of can working is more than the quantity of ink that prior art can provide.
Another characteristics of the present invention are that spring that pressure-regulating device uses adopts general compression spring to get final product, needn't be as the reed-type spring of existing employed complicated shape.
In sum; disclosed a preferred embodiment though the present invention is above-mentioned; yet its also non-limiting the present invention; anyly know this skill and state personnel; without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be as the criterion with appended claim scope.
Claims (17)
1. a pressure-regulating device is characterized in that, which comprises at least:
One sack is placed in the storage trough for ink, makes the inside of described sack and the outside intercommunication of described storage trough for ink, and a side of described sack contacts with the wall of described storage trough for ink; And
One elastic device, have one first end and one second end, and be positioned at described storage trough for ink, described first end contacts with the wall of described storage trough for ink, described second end is oppressed described sack in order to a compression stress to be provided, and makes the outside circulation of fluid in the described sack and described storage trough for ink, and described elastic device also comprises: a pressing plate, be positioned at described storage trough for ink, described pressing plate is one side and an engage sides of described sack wherein; And one the compression spring, be positioned at described storage trough for ink, the two ends of described compression spring contact with a wall of described storage trough for ink and the another side of described pressing plate respectively, in order to provide pressure in described pressing plate, described sack is stretched, within limits with the negative pressure of keeping described storage trough for ink.
2. pressure-regulating device as claimed in claim 1 is characterized in that, the pressure of described storage trough for ink outside is atmospheric pressure.
3. pressure-regulating device as claimed in claim 1 is characterized in that the material of described elastic device can be stainless steel.
4. pressure-regulating device as claimed in claim 1 is characterized in that, described elastic device has a precompressed amount, compressible described sack.
5. pressure-regulating device as claimed in claim 1 is characterized in that, described sack is retracted to minimum state and presents flat, and develops with the wall of described storage trough for ink.
6. pressure-regulating device as claimed in claim 1 is characterized in that the junction of described pressing plate and described sack is the central part outside described sack only.
7. pressure-regulating device as claimed in claim 1 is characterized in that, described sack comprises at least one first Room and one second Room.
8. pressure-regulating device as claimed in claim 7 is characterized in that, described first Room has a conduit, makes the exterior of described sack inside and described storage trough for ink.
9. pressure-regulating device as claimed in claim 7 is characterized in that, has a port between described second Room and described first Room, and described second Room is communicated with described first Room.
10. pressure-regulating device as claimed in claim 7 is characterized in that, the lateral surface of described second Room engages with described pressing plate.
11. a pressure-regulating device is characterized in that, which comprises at least:
Several sacks are placed in the storage trough for ink, but make the inside of described each sack and the outside intercommunication of described storage trough for ink, and a wherein side of each described sack contacts with a wherein inner surface of described storage trough for ink; And
One elastic device, have one first end and second end, and be positioned at described storage trough for ink, wherein said first end contacts with the wherein another side of each described sack with described second end, make the outside circulation of fluid in the described sack and described storage trough for ink by described elastic device, described elastic device also comprises: several pressing plates, be positioned at described storage trough for ink, each described pressing plate comprises a first surface and a second surface, and the described first surface in each described pressing plate contacts with the another side of corresponding each described sack; And a compression spring, be positioned at described storage trough for ink, contact with the described second surface of each described pressing plate respectively, in order to provide pressure, each described sack is stretched in each described pressing plate, the negative pressure in the described storage trough for ink is maintained in a scope.
12. pressure-regulating device as claimed in claim 11 is characterized in that, the pressure of described storage trough for ink outside is atmospheric pressure.
13. pressure-regulating device as claimed in claim 11 is characterized in that, described elastic device material can be stainless steel.
14. pressure-regulating device as claimed in claim 11 is characterized in that, described elastic device has a precompressed amount, compressible described sack.
15. pressure-regulating device as claimed in claim 11 is characterized in that, described sack is retracted to minimum state and presents flat, and develops with the wall of described storage trough for ink.
16. pressure-regulating device as claimed in claim 11 is characterized in that, the junction of described pressing plate and described sack is the central part outside described sack only.
17. pressure-regulating device as claimed in claim 11 is characterized in that, described sack respectively has a conduit, makes the inner and described storage trough for ink exterior of described sack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98116197A CN1103288C (en) | 1998-07-24 | 1998-07-24 | Pressure regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98116197A CN1103288C (en) | 1998-07-24 | 1998-07-24 | Pressure regulating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1243066A CN1243066A (en) | 2000-02-02 |
| CN1103288C true CN1103288C (en) | 2003-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98116197A Expired - Lifetime CN1103288C (en) | 1998-07-24 | 1998-07-24 | Pressure regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1103288C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400295C (en) * | 2004-12-07 | 2008-07-09 | 佳能株式会社 | Liquid container and method for manufacturing the same |
| EP2802458B1 (en) | 2012-01-13 | 2020-04-01 | Hewlett-Packard Development Company, L.P. | Fluid flux correction |
| SG11201506298YA (en) * | 2013-02-20 | 2015-09-29 | Oce Tech Bv | Liquid container |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509062A (en) * | 1982-11-23 | 1985-04-02 | Hewlett-Packard Company | Ink reservoir with essentially constant negative back pressure |
| US5409134A (en) * | 1990-01-12 | 1995-04-25 | Hewlett-Packard Corporation | Pressure-sensitive accumulator for ink-jet pens |
| CN1178167A (en) * | 1996-06-07 | 1998-04-08 | 佳能株式会社 | Liquid discharging head, liquid discharging apparatus and printing system |
| CN1179303A (en) * | 1996-08-30 | 1998-04-22 | 味之素株式会社 | Hair care products |
-
1998
- 1998-07-24 CN CN98116197A patent/CN1103288C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509062A (en) * | 1982-11-23 | 1985-04-02 | Hewlett-Packard Company | Ink reservoir with essentially constant negative back pressure |
| US5409134A (en) * | 1990-01-12 | 1995-04-25 | Hewlett-Packard Corporation | Pressure-sensitive accumulator for ink-jet pens |
| CN1178167A (en) * | 1996-06-07 | 1998-04-08 | 佳能株式会社 | Liquid discharging head, liquid discharging apparatus and printing system |
| CN1179303A (en) * | 1996-08-30 | 1998-04-22 | 味之素株式会社 | Hair care products |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1243066A (en) | 2000-02-02 |
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Owner name: YANNENG SCIENCE CO., LTD. Free format text: FORMER OWNER: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE Effective date: 20070928 |
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Effective date of registration: 20070928 Address after: Hsinchu County, Taiwan, Hsinchu Patentee after: Yanneng Science and Technology Co., Ltd. Address before: Hsinchu County of Taiwan Province Patentee before: Industrial Technology Research Institute |
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Granted publication date: 20030319 |