CN203157372U

CN203157372U - Ink box

Info

Publication number: CN203157372U
Application number: CN 201220712945
Authority: CN
Inventors: 钦雷
Original assignee: Zhuhai Ninestar Management Co Ltd
Current assignee: Zhuhai Ninestar Management Co Ltd
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2013-08-28
Anticipated expiration: 2022-06-20

Abstract

The utility model relates to an ink box. The ink box is detachably installed on an ink-jet printer. The printer comprises a pump which can be connected with the ink box and can carry out air inflation and pressurization on the ink box. The ink box comprises a shell, an ink accommodation chamber, an ink outlet, an inflation port, a deformable chamber and a non-return valve, wherein the ink accommodation chamber is arranged in the shell and can accommodate the ink consumed during ink-jet printing; the ink outlet is used to transport the ink stored in the ink accommodation chamber to a recording head; the inflation port establishes fluid connection with the pump when the ink box is installed on the printer; the deformable chamber is connected with the inflation port; the non-return valve keeps a closure state when the pump carries out the air inflation on the deformable chamber through the inflation port and the deformable chamber is expanded and the non-return valve is in an open state along with consumption of the ink when the deformable chamber is shrunk during printing. Problems that there is a bubble in a printing head and the ink is not easy to flow out in the prior art are solved.

Description

A kind of print cartridge

The utility model is that application number is 201220292679.2, the applying date is on June 20th, 2012, and name is called a kind of the dividing an application of utility model patent of print cartridge.

Technical field

The utility model relates to a kind of PRN device, particularly a kind of print cartridge.

Background technology

Ink jet recording device generally includes print cartridge, box mounting portion, record head and other control assemblies, as pump.Wherein, print cartridge is used for holding ink, and print cartridge can comprise that several are respectively applied to hold the print cartridge of different colours ink usually, and the box mounting portion can comprise that several are respectively applied to hold the accommodating chamber of different colours print cartridge.When printing, print cartridge need be packed in the box mounting portion, and the ink supply port on the ink outlet port on the print cartridge and the box mounting portion aimed at be communicated with, make that the ink in the print cartridge can be delivered to the record head of connection from ink supply port via corresponding ink flow path; And the nozzle ejection that under the driving of print signal ink is arranged from record head is finished the record of character or figure to recording mediums such as paper.

European patent EP 2010392 discloses a kind of ink-jet printer and has been installed in print cartridge on this printer, and wherein this print cartridge comprises the deformable cavity that is arranged in ink storage chamber, and deformable cavity is made of fexible film; The inflation inlet that is connected with the printing pump; When printing beginning, pump pressurizes to deformable cavity by inflation inlet under controller action, and deformable cavity expands and causes the ink storage chamber ink inside to be extruded from ink supply port, thereby ink flows in the printhead air of assembling in the printhead is discharged bubble in the memory dump head.

Yet, owing to deformable cavity is contained in the middle of the ink storage chamber, when deformable cavity is pressurizeed, the ink storage chamber ink inside is to diffusion all around, have only small volume of ink to discharge via ink supply port, therefore need pump repeatedly to the deformable cavity pressurization, cause the film breaks of deformable cavity this moment easily.

The utility model content

The utility model provides a kind of print cartridge, in order to solve in the prior art because deformable film needs to expand to regulate Ink Cartridge inner pressure in print procedure, feasible material ductility to the formation deformable mold is had relatively high expectations so that the manufacturing cost problem of higher.

In order to solve above technical problem, the utility model is taked following technical scheme:

A kind of print cartridge is removably mounted on the ink-jet printer, and described ink-jet printer comprises and being connected with described print cartridge and to the pump of described print cartridge inflation pressurization, described print cartridge comprises: housing; Be arranged on the ink container cavity in the described housing, can hold the ink that consumes for inkjet printing; Ink outlet port is used for will being stored in the ink transport of described ink container cavity to record head; Inflation inlet, when described print cartridge was installed on the described ink-jet printer, it was set up fluid with described pump and is connected; Deformable cavity is communicated with described inflation inlet; It is characterized in that, also be included in described pump by described inflation inlet to the inflation of described deformable cavity and deformable cavity keeps closed condition when expanding, and in printing and described deformable cavity be in the check valve of open mode when shrinking along with the consumption of quantity of ink.

After having adopted technique scheme, owing to be provided with check valve to adjust the print cartridge pressure inside, can reduce the ductility requirement to the material that constitutes deformable film, thereby reduce manufacturing cost.

Description of drawings

Fig. 1 is printing principle figure of the present utility model;

Fig. 2 is the print cartridge structure chart in the utility model;

Fig. 3 is the inner sectional drawing of the utility model print cartridge;

Fig. 4 is printer structure chart when the utility model print cartridge is inflated;

Fig. 5 is the structure chart of the utility model print cartridge when printing;

Reference numeral:

1 print cartridge, 2 printheads, 3 pumps, 4 drivers, 5 controllers, 6 inflation inlets, 7 ink outlet ports, 8 check valves, 9 air guide ports, 10 mounting grooves, 11 valve gaps, 12 valve members, 13 springs, 14 valve pockets, 15 ink introducing ports, 16 through holes, 17 ports, 18 dividing plates, 19 first ink storage chambers, 20 second ink storage chambers, 21 air guide channels, 22 deformable cavities, 23 inwalls, 24 storage devices, 25 recover spring

The specific embodiment

Fig. 1 is the printer schematic diagram in the utility model, printer comprises the print cartridge 1 of storing ink and the ink management system of changeable ink box, ink management system also can be fed to China ink in the print head assembly 2, this print head assembly 2 is transported to media with ink via printhead, printer also comprises a pump 3, one or more drivers 4 and controller 5.But pump 3 is connected with print cartridge 1 by the flexible pipe of relative motion, and connect constantly or in discrete time as required, to change the pressure in the ink management system, thereby pump 3 is by providing a certain amount of fluid such as gas to print cartridge 1 pressurization to ink management system, driver 4 can be one or more driving mechanisms that the machinery movement in the printer is driven, for example motor.Controller 5 can be controlled any suitable member of printer.

Fig. 2 is the print cartridge structure chart in the utility model, and this print cartridge 1 can be for adopting the obturator of plastics preparation, and it comprises housing, and this housing is cavity structure, and namely enclosure interior forms corresponding ink container cavity, can hold the ink that consumes for inkjet printing.The housing sidewall of print cartridge is provided with an ink outlet port 7, be used for to be stored in the ink transport of ink storage chamber to record head, close on ink outlet port 7 sides and also be provided with inflation inlet 6, when print cartridge is installed on the printer word car, inflation inlet 6 is set up fluid with printing pump 3 and is connected, but printer driver 4 driving pumps 3 are worked and print cartridge 1 are inflated, print cartridge 1 also comprises air guide port 9, when printing beginning, the diaphragm seal (not shown) air of removing air guide port 9 places enters by air guide port regulates the air pressure inside balance in the print cartridge ink storage chamber, contain a mounting groove 10 on the print cartridge diapire, this mounting groove 10 can cooperate with corresponding guide rail in the printer word car, so that print cartridge more firmly is installed in the printer.

Print cartridge comprises that also alternative opens or closes the negative pressure regulating mechanism of flow path of ink, in this programme, this negative pressure regulating mechanism is check valve 8, described check valve 8 comprises: be arranged on the valve pocket 14 on the housing, be positioned at spring 13 and the deformable valve member 12 of valve pocket, spring 13 is used for sutaining valve parts 12, and wherein this valve member has upper surface and lower surface, but and the middle through hole 16 that contains a conducting ink, valve gap 11 covers above the valve pocket and the sealing of sealed film.

In the present embodiment, work as print cartridge as shown in Figure 3 and be installed in printer, and ink outlet port 7 one sides namely the fluid pressure in first ink storage chamber because when consuming ink to printhead and reduce, when the fluid pressure that acts on valve member 12 lower surfaces during greater than the bias force of spring 13, valve member 12 separates with valve gap 11, described check valve 8 is opened, the ink storage chamber ink inside flows in the valve pocket 14 via through hole 16 by introducing port on the housing 16, and be supplied to ink outlet port 7 places by port 17, thereby provide ink to printhead, otherwise check valve 8 is closed.

This check valve has any suitable arrangement and structure, individual event valve can be connected to that housing is outer, housing opposite side or enclosure interior, in addition, check valve can have determined by fluid pressure or by the voltage biasing structure relevant pressure determined such as bar or spring for example, may comprise ball valve, diaphragm valve, plug valve etc. by suitable exemplary valve.

Fig. 3 is the print cartridge internal structure schematic diagram in the utility model, as shown in Figure 3, described ink container cavity comprises first ink storage chamber 19 and second ink storage chamber 20 that is separated by dividing plate 18, check valve 8 is arranged between first ink storage chamber 19 and second ink storage chamber 20, also be provided with labyrinth type air guide channel 21 in second ink storage chamber 20, this air guide channel and air guide port 9 adjacency, so that air enters in second ink storage chamber via air guide channel 21 by air guide port 9, second ink storage chamber, 20 bottoms are provided with ink introducing port 15 near the dividing plate place, ink in second ink storage chamber 20 flows in the valve pocket 14 by ink introducing port 15, when check valve 8 is opened, ink is supplied in first ink storage chamber 19 by port 17, and then pass through ink outlet port 7 to printhead supply ink, be provided with deformable cavity 22 in first ink storage chamber 19, described deformable cavity 22 is made up of the inwall 23 that is formed on the first ink storage chamber upper shell and the variable thin film that covers on the inwall, wherein in order to keep the negative pressure in the print cartridge, a recovery spring 25 that can help variable thin film to recover original state is set on the variable thin film of deformable cavity 22 usually, inflation inlet 6 is communicated with deformable cavity 22 by inlet channel, when 3 work of printer control pump, pump can be by inflation inlet 6 to deformable cavity 22 inflations, described print cartridge also comprises storage device 24 in addition, store the information relevant with ink, as color and capacity etc.

Wherein deformable cavity can have any suitable structure and size, and for example deformable cavity can be made of any suitable inwall and flexible membrane, also can be flexible film formed satchel.

Fig. 4 is for before printing beginning, structural representation when printing 1 inflation of 3 pairs of print cartridges of pump, as shown in Figure 4, printing pump is connected with inflation inlet 6 in the print cartridge 1 by a flexible duct (not shown), when 3 work of printer controller control pump, pump is inflated to deformable cavity 22 by inflation inlet 6, deformable cavity 22 can relatively expand, and check valve 8 keeps closed conditions at this moment, along with the expansion of deformable cavity 22, pressure in first ink storage chamber 19 increases, and to the extruding of first ink storage chamber, 19 ink inside, because the barrier effect of dividing plate 18 causes ink can't flow to second ink storage chamber 20, therefore ink is discharged via ink outlet port 7, as shown by arrows.After the ink toward print head, pump quits work, and gas in the deformable cavity 22 is owing to recover spring 25(as shown in Figure 5) squeezing action discharge via inflation inlet 6, kept certain negative pressure in first ink storage chamber 19, thereby bubble in the printhead is attracted in the print cartridge, with bubble in the memory dump head.

Print cartridge profile when Fig. 5 is printing, during printing, air pump inoperative, deformable cavity 22 is owing to recover the squeezing action contraction of spring 25, because the suction of printer, ink in first ink storage chamber 19 is used for printing via ink outlet port 7 toward print head, consumption along with quantity of ink, negative pressure in first ink storage chamber 19 increases gradually, when pressure reaches certain threshold value, check valve 8 is opened, and the ink in second ink storage chamber 20 is supplied in first ink storage chamber 19 by ink introducing port 15 and replenishes, and then supplies ink by ink supply port 7 to printhead.

Certainly, above-mentioned second ink storage chamber 20 can also be divided into a plurality of again, and a plurality of ink storage chambers namely are set, and clearly also belongs to protection domain of the present utility model.

Claims

1. a print cartridge is removably mounted on the ink-jet printer, and described ink-jet printer comprises and being connected with described print cartridge and to the pump of described print cartridge inflation pressurization, described print cartridge comprises:

Housing;

Be arranged on the ink container cavity in the described housing, can hold the ink that consumes for inkjet printing;

Ink outlet port is used for will being stored in the ink transport of described ink container cavity to record head;

Inflation inlet, when described print cartridge was installed on the described ink-jet printer, it was set up fluid with described pump and is connected;

Deformable cavity is communicated with described inflation inlet;

It is characterized in that, also be included in described pump by described inflation inlet to the inflation of described deformable cavity and deformable cavity keeps closed condition when expanding, and in printing and described deformable cavity be in the check valve of open mode when shrinking along with the consumption of quantity of ink.

2. print cartridge as claimed in claim 1 is characterized in that, described deformable cavity is made up of the inwall of described housing and the variable thin film that covers on the described inwall.

3. print cartridge as claimed in claim 2 is characterized in that, described variable thin film outer surface also is provided with the recovery spring.

4. print cartridge as claimed in claim 1 is characterized in that, the described deformable cavity flexible film formed satchel of serving as reasons.

5. print cartridge as claimed in claim 1, it is characterized in that, described check valve comprises the valve pocket that is arranged on the described housing, the spring that is positioned at described valve pocket, deformable valve member and valve gap, wherein, described spring is used for supporting described valve member, described valve member has upper surface and lower surface, and the centre is provided with a through hole, and described valve gap covers on the described valve pocket and be sealed.