CN2544940Y

CN2544940Y - Ink cartridge of printer

Info

Publication number: CN2544940Y
Application number: CN02227387U
Authority: CN
Inventors: 吴俊忠; 周毅; 涂中华
Original assignee: Zhuhai Ninestar Management Co Ltd
Current assignee: Zhuhai Ninestar Management Co Ltd
Priority date: 2002-04-27
Filing date: 2002-04-27
Publication date: 2003-04-16
Anticipated expiration: 2012-04-27
Also published as: DE10318949A1; WO2003093019A1; DE10318949B4; AU2003245813A1

Abstract

The utility model provides a printer ink box, comprising an ink storage chamber, a pressure adjusting mechanism, a sealing ring and a sealing ball; the pressure adjusting mechanism is arranged in the ink storage chamber, and a valve membrane is arranged between the front valve body and the rear valve body of the pressure adjusting mechanism; the mechanism is wholly arranged on the surface cover of the ink storage chamber, and is provided with a vent hole communicated with a blowhole on the surface cover and with the atmosphere. Owning to the function of the pressure adjusting mechanism, the printer ink box can lead the whole ink storage chamber in a negative pressure state, ensuring that ink can continuously and uniformly flow to a printing head to a greater extent when printing, meanwhile, solves the problem of the overflow of ink whenever the ink box is moved away from the printer.

Description

Ink-cases of printers

Technical field

The utility model relates to a kind of ink-cases of printers.

Background technology

Existing in the market or obtained Patent right similar ink-cases of printers, its major part is that the capillary attraction by porous body guarantees out China ink, or guarantees out China ink by the pressure adjustmenting mechanism that is positioned at the print cartridge local location.Above-mentioned print cartridge has following shortcoming:

1, porous body itself has taken a part of space of ink storage chamber, and the ink reservoir volume of print cartridge is reduced;

2, the blotting effect of porous body has caused ink waste to a certain extent;

3, the effect of pressure adjustmenting mechanism only is embodied on the local location of print cartridge inner chamber;

4, just rely on the negative pressure in the ink outlet port to guarantee that print cartridge ink when moving apart printer does not flow out;

The utility model content:

The purpose of this utility model is to provide a kind of novel ink-cases of printers, this print cartridge can guarantee that whole inner chamber all is in negative pressure state, so that more stable control print procedure, when print cartridge moves apart printer, the negative pressure in relying on ink outlet port, can also make ink outlet port be in sealed state fully by the mechanical force that a kind of mechanical mechanism produced, thereby guarantee that fundamentally ink does not outflow when print cartridge moves apart printer;

The purpose of this utility model is achieved in that the utility model comprises ink storage chamber, pressure adjustmenting mechanism, sealing ring, sealing ball and spring, pressure adjustmenting mechanism is placed in the ink storage chamber, pressure adjustmenting mechanism comprises forward and backward valve body, valve film, cover and spring, between the driving fit forward and backward valve body together a valve film is arranged, one spring is arranged between valve film and the front valve shell, have an air groove on the rear valve body, the middle part of groove bottom is provided with the shrinkage pool of a projection, have the small sircle hole of a band chimb on the valve film, this circular hole is withstood in the shrinkage pool of rear valve body by spring; Pressure adjustmenting mechanism is installed on the cover of ink storage chamber, and a passage is arranged on the cover, and the air groove of rear valve body has a pore to communicate with passage on the cover, and passage communicates with atmosphere.

The ink outlet port place of ink storage chamber is provided with sealing ring, and the inner ring place of sealing ring is placed with a ball sealer, and the sealing ball withstands on the inner ring place of sealing ring by a spring with it.The utlity model has following advantage:

1, whole ink storage chamber is in negative pressure state;

2, it is bigger to be positioned at the valve membrane plane area of ink storage chamber internal pressure guiding mechanism, and when invariablenes pressure of liquid, it is big that pressure becomes, and can more stably control negative pressure, is ensureing that to a greater extent ink can continue toward print head equably when printing;

3, do not need the capillary attraction of porous body to guarantee out China ink, thereby both increased the ink reservoir volume of ink storage chamber, avoid the waste of the ink that the blotting effect because of porous body causes again;

4, except the suction function of ink outlet port, also increased a kind of mechanical mechanism newly, the circular hole in the sealing ring can be shut, fundamentally solved the problem of ink outflow after print cartridge moves apart printer.

Description of drawings:

Fig. 1 is a structure cutaway view of the present utility model;

Fig. 2 is a pressure adjustmenting mechanism cutaway view of the present utility model;

Fig. 3 is the utility model structural representation.

1 sealing ring, 2 ball sealers, 3 springs, 4 ink storage chambers, 5 front valve shells, 7 valve films,

8 rear valve bodies, 9 covers, 10 ink outlet ports, 11 passages, 12 air grooves,

13 pores, 14 shrinkage pools, 15 valve film small sircle holes

The specific embodiment

As shown in Figure 1, 2, 3, the utility model comprises ink storage chamber 4, pressure adjustmenting mechanism, sealing ring 1, ball sealer 2 and spring 3, pressure adjustmenting mechanism is placed in the ink storage chamber 4, pressure adjustmenting mechanism comprises front valve shell 5, rear valve body 8, cover 9 and spring 3, driving fit forward and backward valve body (5 together, one valve film 7 is arranged 8), a spring 3 is arranged between valve film 7 and the front valve shell 5; Have an air groove 12 on the rear valve body 8, the middle part of groove bottom is provided with the shrinkage pool 14 of a projection, has the small sircle hole 15 of a band chimb on the valve film 7, and this circular hole is withstood in the shrinkage pool 14 of rear valve body 8 by spring 3; Pressure adjustmenting mechanism is installed on the cover 9 of ink storage chamber 4, one passage 11 is arranged on the cover 9, the air groove 12 of rear valve body 8 has a pore 13 to communicate with passage 11 on the cover 9, and passage 11 communicates with atmosphere, and the medium of adjusting pressure in its pressure adjustmenting mechanism is an air.

Ink outlet port 10 places of ink storage chamber 4 are provided with sealing ring 1, and the inner ring place of sealing ring 1 is placed with a ball sealer 2, and sealing ball 2 withstands on the inner ring place of sealing ring 1 by a spring 3 with it.

When print cartridge was put into printer, the cylinder on the printhead was in the circular hole that ink outlet port 10 inserts the sealing ring 1, and with ball sealer 2 jack-up, at this moment ink can flow into printhead from the circular hole in the middle of the sealing ring 1.Flow in the process of printhead at ink, ink storage chamber 4 can make pressure reduce because of the outflow of ink, when pressure be reduced to a certain degree (0.5KPA to-1.5KPA) time, pulled to front valve shell 5 with rear valve body 8 driving fits valve film 7 together by the power that pressure differential produced, spring 3 in the pressure adjustmenting mechanism is compressed simultaneously, small sircle hole 15 in the middle of the valve film 7 is pulled away from rear valve body 8, be in aeration status, the passage 11 of air from the cover 9 is via the pore on the rear valve body 8 13, small sircle hole 15 in the middle of air groove 12 and the valve film 7 flows in the ink storage chamber 4, thereby the pressure of whole ink storage chamber 4 is raise, after being elevated to a certain degree, the elastic force that valve film 7 compressed springs 3 itself are had is pushed rear valve body 8 again to, small sircle hole 15 in the middle of the valve film 7 is withstood in the shrinkage pool 14 on the rear valve body 8 by spring 3 again, be in sealing state again.In continuing the process of printing, the pressure in the ink storage chamber 4 reduces again, thereby the gap between rear valve body 8 and the valve film 7 is produced once more, and air flows into again in the ink storage chamber 4.In overall print process, this process is gone round and begun again, and finishes up to print state.

When print cartridge moves apart printer, ball sealer 2 under the effect of spring 3 elastic force with the circular hole of sealing ring 1 stifled on, the suction function power of this active force in ink outlet port guarantees that ink can't flow out outside the print cartridge.

Claims

1, a kind of ink-cases of printers, comprise ink storage chamber, pressure adjustmenting mechanism, sealing ring, sealing ball and spring, pressure adjustmenting mechanism is placed in the ink storage chamber, it is characterized in that pressure adjustmenting mechanism comprises front valve shell, rear valve body, valve film, cover and spring, between the driving fit forward and backward valve body together a valve film is arranged, one spring is arranged between valve film and the upper valve body, an air groove is arranged on the rear valve body, the middle part of groove bottom is provided with the small sircle hole that has a band chimb on the shrinkage pool, valve film of a projection, and this circular hole is withstood in the shrinkage pool of rear valve body by spring; Pressure adjustmenting mechanism is installed on the cover of ink storage chamber, and a passage is arranged on the cover, and the air groove of rear valve body has a pore to communicate with passage on the cover.

2, ink-cases of printers according to claim 1, the sealing ring that its feature will be provided with in the ink outlet port place of ink storage chamber, the inner ring place of sealing ring is provided with a ball sealer, and the sealing ball withstands on the inner ring place of sealing ring by a spring with it.

3, ink-cases of printers according to claim 1 is characterized in that the passage on the cover communicates with atmosphere.