CN101003211A

CN101003211A - Ink supply adjustment control device for continuous ink supply system

Info

Publication number: CN101003211A
Application number: CN 200610005444
Authority: CN
Inventors: 罗进添
Original assignee: Microjet Technology Co Ltd
Current assignee: Microjet Technology Co Ltd
Priority date: 2006-01-17
Filing date: 2006-01-17
Publication date: 2007-07-25

Abstract

The invention provides an ink supply regulation control device of a continuous ink supply system, which comprises a printing ink box with a printing head, an ink supply box with an ink outlet for supplying ink to the printing ink box, an ink supply box bearing seat for installing the ink supply box thereon, and an ink guide pipe coupled between the ink supply box bearing seat and the ink supply box for conveying the ink from the ink supply box to the printing ink box; the ink outlet of the ink supply box has a height difference with the position of the printing head of the printing ink box, and the ink supply box is internally provided with an ink supply adjusting control device, the configuration of which is set to adjust the negative pressure in the ink supply box corresponding to the change of the atmospheric pressure in the ink supply box, so that the height difference between the position of the ink outlet of the ink supply box and the position of the printing head of the printing ink box is maintained between 6cm below the printing head and 15cm above the printing head, and the continuous ink supply effect of siphon effect between the ink supply box and the printing ink box can be completely ensured.

Description

The ink supply control set for adjusting of continuous ink-supply system

Technical field

The ink supply control set for adjusting of the relevant a kind of ink-jet printer of the present invention.

Background technology

In the printer of numerous kinds, ink-jet printer (ink jet printer) is at present most popular wherein a kind of.Traditional ink-jet printer mainly is divided into bubble type ink-jet printer (thermal-bubble inkjet printer) and two kinds of piezoelectric ink jet printers (micro-piezoink jet printer) according to the difference of use ink-jet technology.The bubble type ink-jet printer is a principle of utilizing heat energy, calorifies the thin film in the printing head after energising, makes ink be heated afterwards to seethe with excitement and produces bubble, utilizes the pressure of bubble, forces ink to be penetrated by nozzle.Then outage utilizes bubble to dwindle the negative pressure that is produced, and sucks new ink again, prepares ejection next time.The piezoelectric ink jet printer is to utilize the concussion principle strike ink of crystal oscillator that ink is sprayed onto on the printed medium.When crystal is subjected to the electric energy pressurization, can expand and then ink be extruded, when stopping power supply, just ink is retracted.

In general ink-jet printer, for the convenient ink that replenishes in the ink cartridge low in printing ink box can utilize airtight ink supply casket (ink reservoir) to supply ink to printing ink box.Traditional ink supply casket is to be arranged in the external connection box, utilizes the connection of also passing through the fluid transfer pipe line based on the siphonage of atmospheric pressure, and the ink transport in the ink supply casket to ink-jet printer is printed.

Under this configuration, the placement of ink supply casket highly generally is to be placed on same plane with printer and ink level must be a little less than printer nozzle, yet after printer does not use a period of time, ink can be because the effect of siphonic effect, return in the ink supply casket via printer nozzle head adverse current, cause ink to spill the problem of (ink leakage) and the output of low-quality ink.Therefore have its need design prevent the ink adverse current mechanism in the ink supply casket.

In addition, when ink was delivered to ink-jet printer by the ink supply casket, the atmospheric pressure of ink supply casket inside generally speaking can be slightly less than extraneous atmospheric pressure so that the flow rate of control ink.Therefore, ink supply casket inside must continue to be in a stable subnormal ambient with smooth ink supply.Yet along with ink continues to transfer out outside the ink supply casket, the negative pressure of ink supply casket inside also can change thereupon.If the negative pressure of ink supply casket inside is too high, the printhead of ink-jet printer can't provide enough strength that ink is sprayed; If the negative pressure of ink supply casket inside is low excessively,, cause the waste of ink and the decline of print quality just ink can spill from printhead.Therefore, how in an admissible scope, to control the flow rate that ink is exported by the negative pressure of regulating ink supply casket inside, very important to reach stable ink output with print quality.

Therefore its ink supply control set for adjusting that need develop a kind of continuous ink-supply system is just arranged, to meet above-mentioned all demands.

Summary of the invention

A purpose of the present invention is to provide a kind of continuous ink-supply system, and it provides stable and continuous ink feed gives an ink-jet printer, takes place with the problem of avoiding ink leak.

Another object of the present invention is to provide a kind of ink supply control set for adjusting that is used for ink supply casket inside, it can control the flow rate of this ink supply casket output ink by the negative pressure of adjusting an ink supply casket inside in admissible scope.

For reaching above-mentioned purpose, the present invention proposes a kind of continuous ink-supply system, and it comprises a printing ink box, is installed in the ink-jet printer, and has a printhead, and ink is sprayed on multimedia; One ink supply casket, in order to supply ink to this printing ink box, have an ink feed slot and and be arranged at the bottom of housing of this ink supply casket and the ink supply port that is connected with this ink feed slot, wherein the print head position of the ink outlet port position of this ink supply casket and this printing ink box has a difference in height; One seat for ink supply box, its configuration and setting is mounted thereon for this ink supply casket, comprise and lead China ink linking part, it has the rear surface of one first distal process for this seat for ink supply box madial wall, allow the ink of ink feed slot inside flow out outside this ink supply casket in order to the ink outlet port of puncture ink supply casket, and one second end be connected with this ink conduit, in order to ink supply casket ink is imported in the ink conduit; One ink conduit, be coupled between this seat for ink supply box and this ink supply casket, in order to from the ink supply casket with ink transport to this printing ink box, wherein this ink supply casket has one and is formed the ink supply control set for adjusting by the airbag group, its configuration and setting mutually should ink supply casket inside atmospheric pressure change the negative pressure of adjusting this ink supply casket inside, and the difference in height of the ink outlet port position of this ink supply casket and the print head position of this printing ink box maintains printhead below 6cm to position between the same printhead plane, so as to guaranteeing to keep between ink supply casket and printing ink box the continuous ink feeding effect of siphonic effect fully.

For reaching above-mentioned purpose, the present invention proposes a kind of ink supply control set for adjusting, and it comprises a printing ink box, is installed in the ink-jet printer, and has a printhead, and ink is sprayed on multimedia; One ink supply casket, in order to supply ink to this printing ink box, have an ink feed slot and and be arranged at the bottom of housing of this ink supply casket and the ink supply port that is connected with this ink feed slot, wherein the print head position of the ink outlet port position of this ink supply casket and this printing ink box has a difference in height; One seat for ink supply box, its configuration and setting is mounted thereon for this ink supply casket, comprise and lead China ink linking part, it has the rear surface of one first distal process for this seat for ink supply box madial wall, allow the ink of ink feed slot inside flow out outside this ink supply casket in order to the ink outlet port of puncture ink supply casket, and one second end be connected with this ink conduit, in order to ink supply casket ink is imported in the ink conduit; One ink conduit, be coupled between this seat for ink supply box and this ink supply casket, in order to from the ink supply casket with ink transport to this printing ink box, wherein this ink supply casket has one and is formed the ink supply control set for adjusting by airbag group and shell fragment group, its configuration and setting mutually should ink supply casket inside atmospheric pressure change the negative pressure of adjusting this ink supply casket inside, and the difference in height of the ink outlet port position of this ink supply casket and the print head position of this printing ink box maintains printhead below 6cm to being higher than position between the 15cm of printhead top, so as to guaranteeing to keep between ink supply casket and printing ink box the continuous ink feeding effect of siphonic effect fully, and under no printing the problem of no ink leak.

Description of drawings

Fig. 1 shows the perspective view of one first preferred embodiment of continuous ink-supply system of the present invention;

Fig. 2 (A) is that legend shows the view in transverse section according to the ink supply casket of the first embodiment of the present invention to Fig. 2 (D);

Fig. 3 is that legend shows the longitdinal cross-section diagram according to the ink supply casket of the first embodiment of the present invention; And

Fig. 4 shows the perspective view of one second preferred embodiment of continuous ink-supply system of the present invention.

The specific embodiment

The preferred embodiment that embodies feature of the present invention and advantage will be described in detail in the explanation of back.Be understood that the present invention can have various variations on different aspects, its neither departing from the scope of the present invention, and explanation wherein and to be shown in be when the usefulness that explain in essence, but not in order to restriction the present invention.

The perspective view of first preferred embodiment of continuous ink-supply system of the present invention is shown among Fig. 1.Continuous ink-supply system shown in Figure 1 comprises a seat for ink supply box 102, and its configuration and setting can be mounted thereon at least one ink supply casket 104.Continuous ink-supply system shown in Figure 1 also comprises a printing ink box 112, be installed on an ink-jet printer 110 inside, and this printing ink box 112 has a printhead 113, and at least one ink conduit 106, and it is connected between printing ink box 112 and this seat for ink supply box 102.Seat for ink supply box 102 also comprises leads China ink and is connected part 108, and it has one first end 108a and protrudes on the rear surface of these seat for ink supply box 102 madial walls and one second end 108b is connected with ink conduit 106.The effect of leading China ink linking part 108 is when ink supply casket 104 is mounted on the seat for ink supply box 102, penetrate into ink supply casket 104 and ink that the ink feed slot 203 of ink supply casket 104 inside is stored draws out by its first 108a, and the operation of the by-pass valve control (not shown) by ink-guiding rod 108 inside is delivered to printing ink box 112 with ink via second 108b and ink conduit 106.

Ink supply casket 104 has a housing (housing) 201, and its inside is provided with ink feed slot (ink supplytank) 203 with ink reservoir.Housing 201 bottoms are provided with an ink outlet port 214, and it is made up of an airtight barrier film (septum) and is connected with this ink feed slot 203.The effect of ink outlet port 214 is when ink supply casket 104 is mounted on the seat for ink supply box 102, drawn out ink supply casket 104 outsides by to be allowed ink by first 108a that leads China ink linking part 108 punctures easily.The upper surface of housing 201 has one first air inlet 202, and it can import outside air ink supply casket 104 inside to regulate the negative pressure of ink supply casket 104 inside.

It should be noted that ink feed slot 203 inside have an ink supply control set for adjusting, the negative pressure of ink supply casket 104 inside is dynamically adjusted in the atmospheric pressure change that they can corresponding ink supply casket 104 inside, exports the flow rate of inks so as to controlling ink supply casket 104.According to first preferred embodiment of the present invention, the ink supply control set for adjusting that is positioned at ink feed slot 203 inside comprises an airbag group 204, and it is arranged at the madial wall of contiguous housing 201, and is made up of the airbag 204a and the 204b that interconnect.Airbag 204a is connected with first air inlet 202 with 204b and can outside air be imported wherein by first air inlet 202, so that the negative pressure of regulating ink supply casket 104 inside by the expansion of

airbag

204a and 204b and contraction.The ink supply control set for adjusting of ink supply casket 104 also comprises a filtering element (cartridge) group (210,213), and it is arranged at housing 201 bottoms and is connected with one second air inlet 212 that is positioned at housing 201 lower surfaces.Filtering element (cartridge) group (210,213) formed by a filter element base 210 and a high density filtering element (cartridge) 213, its middle-high density filtering element (cartridge) 213 configuration and settings enter the air of ink feed slot 203 with further adjusting via this second air inlet 212, with the negative pressure of balance ink supply casket 104 inside, so that the ink that ink feed slot 203 is stored can ink leak via ink outlet port 214 normal ink supply.

In addition, ink supply control set for adjusting of the present invention also comprises a shell fragment group 208, and it is the bottom that is fastened in filter element base 210 or housing 201 with respect to airbag group 204.In the present embodiment, shell fragment group 208 is connected in a base (not being shown among the figure) by two shell fragments to be formed, and the base of this shell fragment group 208 can be by the draw-in groove (not being shown in figure) of draw-in groove that is arranged in filter element base 210 peripheries (not being shown in figure) or housing 201 bottoms and is fastened in the bottom of filter element base 210 or housing 201.Two shell fragments of shell fragment group 208 are to be arranged at airbag 204a, between the 204b, and extend and contact with corresponding airbag separately to the madial wall of ink supply casket 104 with its free end.Also be provided with a central tab 208a on two shell fragments of shell fragment group 208, it can not touch airbag 204a as yet at two shell fragments of shell fragment group 208, contact airbag 204a during 204b earlier, 204b, and can corresponding airbag 204a, the Volume Changes of 204b and replace

airbag

204a, 204b, adjust airbag 204a, the susceptibility of 204b on Volume Changes with auxiliary shell fragment group 208.

Fig. 2 (A) is that legend shows the view in transverse section according to the ink supply casket 104 of the first embodiment of the present invention to Fig. 2 (D), and it is to be used for illustrating that ink supply control set for adjusting of the present invention carries out the operating procedure that ink supply is regulated.It is noted that the components identical label is to point to components identical.Fig. 2 (A) to Fig. 2 (D) show respectively that airbag group 204 and shell fragment group 208 open 1/4, airbag group 204 and shell fragment group 208 open 1/2, airbag group 204 opens 2/3 with shell fragment group 208, and airbag group 204 and shell fragment group 208 complete open schematic diagrames.In Fig. 2 (A), because ink supply casket 104 has just upgraded or ink feed slot 203 interior firm the replenishing of inks finish, the ink in the ink feed slot does not flow out ink supply casket 104, thereby the negative pressure of ink supply casket 104 inside can maintain in the admissible scope.Airbag group 204 just slightly expands at this moment.In Fig. 2 (B), ink has begun to flow out ink supply casket 104 and has been delivered to printing ink box 112 by the black part 108 that is connected of leading of Fig. 1 with ink conduit 106, therefore airbag group 204 can begin to inflate and expand via first air inlet 202, and then can be subjected to shell fragment group 208 restriction and and the negative pressure of keeping ink supply casket 104 inside in admissible scope, the ink output flow rate of controlling ink supply casket 104 whereby is in a fixing scope.In Fig. 2 (C), ink continues to flow out ink supply casket 104, and airbag group 204 can continue to inflate and expand via first air inlet 202, and then can be subjected to the restriction of shell fragment group 208 and the negative pressure of keeping ink supply casket 104 inside in certain scope, the ink output flow rate of controlling ink supply casket 104 whereby is in a fixing scope.In Fig. 2 (D), ink has flowed out ink supply casket 104 fully, and airbag group 204 also therefore complete expansion come, make two shell fragments of shell fragment group 208 be compressed and driving fit fully simultaneously.Thus, the ink output flow rate of ink supply casket 104 just can obtain stable and smooth-going adjusting by the negative pressure of adjusting ink supply casket 104 inside, and can avoid ink leak or generation that can't the ink supply situation.

Fig. 3 is that legend shows that it is the enlarged drawing of the ink supply casket 104 of Fig. 1 according to the longitdinal cross-section diagram of the ink supply casket 104 of the first embodiment of the present invention.It should be noted that ink supply casket 104 also has a circuitous air flue 216, it is arranged at housing 201 bottoms and is connected with filter element base 210, in order to regulate the air inflow of second air inlet 212.

Therefore, on the ink supply casket 104 practical application continuous ink-supply systems of the present invention as shown in the above description, and be connected to and constitute a continuous ink feeding module on the seat for ink supply box 102, it is noted that in addition, this continuous ink feeding assembly carries the ink outlet port 214 of ink supply casket 104 and printhead 113 relative position relations of printing ink box 112, when the printhead 113 relative position differences in height of ink outlet port 214 positions of ink supply casket 104 and printing ink box 112 remain on when printhead 113 tops are higher than outside the 15cm, and utilize in the ink supply casket 104 of this continuous ink-supply system with airbag group 204 and shell fragment group 208 constituted the ink supply adjusting device and controlled ink supply casket 104 internal negative pressures, ink supply casket 104 internal pressures not only were subjected to outside atmospheric pressure influence and internal negative pressure and regulated and have big pressure and cause greater than printing ink box 112 internal pressures this moment, thereby quicken printing ink box 112 with ink conduit 106 ink supply discharge pressures, under not having the operation situation of printing, still cause supplying with in the printing ink box 112 ink and take place by printhead 113 places liquid leakage situation; Again when the printhead 113 relative position differences in height of ink outlet port 214 positions of ink supply casket 104 and printing ink box 112 remain on outside the 6cm of printhead 113 belows, and this moment, printing ink box 112 internal pressures can be greater than ink supply casket 104 internal pressures, thereby destruction printing ink box 112 is in the siphonage ink supply mode of ink conduit 106 ink supply conveying, and the transmission ink can be by the adverse current phenomenon of eminence toward lower stream because of losing siphon power in ink conduit 106, that is the ink adverse current arrives in the ink supply casket 104 the problem generation of the low-quality ink output of the discontinuous generation of ink supply when causing follow-up printing to use.So printhead 113 differences in height that go out black liquid level and printing ink box 112 of ink supply casket 104 inside maintain-6 centimetres to 15 centimetres position (that is printhead below 6cm is to being higher than position between the 15cm of printhead top) in the present embodiment, as shown in Figure 1, so can guarantee fully not have the problem generation of ink leak and keep steady and continuous ink supply state simultaneously.

And the perspective view of another second preferred embodiment of continuous ink-supply system of the present invention is to be shown among Fig. 4.Compare with the continuous ink-supply system of Fig. 1, mainly have airbag group 204 and do not have shell fragment group 208 and form can find the ink supply control set for adjusting of present embodiment, thus the negative pressure of ink supply casket 104 inside to regulate pressure less, though can save the manufacturing cost of ink supply casket 104.It is noted that in addition, this continuous ink feeding assembly carries the ink outlet port 214 of ink supply casket 104 and printhead 113 relative position relations of printing ink box 112, ink outlet port 214 positions of ink supply this moment casket 104 and the printhead 113 relative position differences in height of printing ink box 112 must remain on printhead 113 same planes or be lower than printhead 113 lower positions, begin to utilize the siphonic effect effect that ink in the ink supply casket 104 is reached continuous ink-supply system with ink conduit 106 for transporting in the printing ink box 112, but when the printhead 113 relative position differences in height of ink outlet port 214 positions of ink supply casket 104 and printing ink box 112 remain on outside the 6cm of printhead 113 belows, ink outlet port 214 positions that highly are higher than ink supply casket 104 because of the printhead 113 of this printing ink box 112, and it is little that ink supply casket 104 internal negative pressures are regulated pressure angle, cause printing ink box 112 internal pressures greater than ink supply casket 104 internal pressures this moment, thereby destruction printing ink box 112 is in the siphonage ink supply mode of ink conduit 106 ink supply conveying, so the transmission ink has by the adverse current phenomenon of eminence toward lower stream because of losing siphon power in ink conduit 106, that is the ink adverse current arrives in the ink supply casket 104 the problem generation of the low-quality ink output of the discontinuous generation of ink supply when causing follow-up printing to use.So printhead 113 differences in height that go out black liquid level and printing ink box 112 of ink supply casket 104 inside maintain printhead below 6cm extremely and between the printhead isoplanar position in this embodiment, as shown in Figure 4, so can guarantee steady and continuous ink supply state fully.

In sum, the invention provides a kind of ink supply control set for adjusting that is applicable to continuous ink-supply system, it can improve the ink supply quality and the cost benefit of ink supply casket by ink supply control set for adjusting of the present invention, takes place to avoid ink leak or situation that can't ink supply.

Person skilled in the art scholar can make the change or the replacement of all equivalences according to the spirit of the present invention that the foregoing description disclosed, and the change of these equivalences or replacement all should be included in appended the application's the claim scope.

Claims

1. An ink supply regulation control device for a continuous ink supply system, comprising:

A printing ink box is installed in an inkjet printer and has a printing head to spray ink on the multimedia;

An ink supply box, used to supply ink to the printing ink box, has an ink supply tank and an ink supply port arranged at the bottom of the casing of the ink supply box and communicated with the ink supply tank, wherein the ink supply There is a height difference between the position of the ink outlet of the cartridge and the position of the print head of the print cartridge;

An ink supply cartridge holder configured to allow the ink supply cartridge to be mounted thereon, comprising an ink guiding connector having a first end protruding from the rear surface of the inner wall of the ink supply cartridge holder for piercing the ink outlet of the ink supply cartridge to allow the ink inside the ink supply tank to flow out of the ink supply cartridge, and a second end connected to the ink conduit for introducing the ink of the ink supply cartridge into the ink conduit;

an ink conduit, coupled between the ink supply cartridge holder and the ink supply cartridge, for delivering ink from the ink supply cartridge to the print ink cartridge;

Wherein the ink supply cartridge has an ink supply adjustment control device composed of an air bag group and a shrapnel group, and its configuration is set to adjust the negative pressure inside the ink supply cartridge corresponding to the change of the atmospheric pressure inside the ink supply cartridge; and

The height difference between the ink outlet position of the ink supply box and the print head position of the print ink box is maintained between 6 cm below the print head and 15 cm above the print head, so as to fully ensure the maintenance between the ink supply box and the print ink box. Continuous ink supply with siphon effect, and no ink leakage problem without printing operation.

2. The ink supply adjustment control device of the continuous ink supply system according to claim 1, wherein the ink supply box also includes a first air inlet, which is arranged on the upper surface of the housing, and a second air inlet The port is arranged on the lower surface of the casing, and includes a filter element set, which is arranged on the bottom of the casing and communicates with the second air inlet, so as to regulate the ink supply entering through the second air inlet. Groove air.

3. The continuous ink supply system according to claim 1, wherein the air bag group is composed of two interconnected air bags, which are arranged adjacent to the inner wall of the housing and connected to the first air inlet The openings are connected, and the air introduced by the first air inlet expands or contracts to adjust the negative pressure inside the ink supply box.

4. The continuous ink supply system according to claim 1, wherein the shrapnel group is fixed on the bottom of the housing relative to the air bag group, and the shrapnel group is composed of two shrapnels with a free end, And each of the two elastic pieces has a central protruding piece, which is used to resist the air bag group and assist in adjusting the negative pressure inside the ink supply cartridge.

5. A continuous ink supply system comprising:

Wherein the ink supply box has an ink supply adjustment control device composed of an air bag group, and its configuration is set to adjust the negative pressure inside the ink supply box corresponding to the change of atmospheric pressure inside the ink supply box; and

The height difference between the position of the ink outlet of the ink supply cartridge and the position of the print head of the print ink cartridge is maintained between 6 cm below the print head and the same print head plane, so as to fully ensure that the siphon between the ink supply cartridge and the print cartridge is maintained The continuous ink supply effect of the effect.

6. The ink supply regulating control device of the continuous ink supply system as claimed in claim 5, wherein the ink supply box further comprises a first air inlet, which is arranged on the upper surface of the housing, and a second air inlet The port is arranged on the lower surface of the casing, and includes a filter element set, which is arranged on the bottom of the casing and communicates with the second air inlet, so as to regulate the ink supply entering through the second air inlet. Groove air.

7. The continuous ink supply system according to claim 1, wherein the air bag group is composed of two interconnected air bags, which are arranged adjacent to the inner side wall of the housing and connected to the first air inlet The openings are connected, and the air introduced by the first air inlet expands or contracts to adjust the negative pressure inside the ink supply box.