CN2677154Y

CN2677154Y - Ink jet printing machine ink box without sponge

Info

Publication number: CN2677154Y
Application number: CN 200320101259
Authority: CN
Inventors: 洪林锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-17
Filing date: 2003-10-17
Publication date: 2005-02-09
Anticipated expiration: 2013-10-17

Abstract

The utility model belongs to an ink jet printing machine ink box without sponges, which comprises an ink box housing and at least one chamber for containing desired ink for printing. An ink supply opening connecting with the ink jet printing machine is arranged on the lower part of the ink box housing, and the upper part of the ink box housing is an opening. A surface cover covers the opening of the ink box housing, and a set of air hole devices are arranged on the surface cover. Every chamber is provided with a set of threshold valve devices, a siphon tube and a sieving ink cover, and the threshold valve devices are fixed above the ink supply opening. The sieving ink cover is fixed on the bottom of the chamber of the ink box housing, the sieving ink cover and the threshold valve devices are communicated through the siphon tube, and a filtering net is welded on the opening position of the sieving ink cover. The utility model applies the siphon tube and the threshold two-way valve to realize stable ink supply for a print head, and in theory, the ink in the ink box can be completely used in printing. The filtering surface of the filtering net is downward, which avoids the accumulation of particulate matters on the filtering net and effectively reduces the probability of the particulate matters entering the jet head of the ink jet printing machine.

Description

No sponge ink-jet printer cartridge

Technical field

The utility model belongs to a kind of no sponge ink-jet printer cartridge.

Background technology

Inkjet printing is a kind of contactless digital printed technology, and this printing technique has that print speed is fast, flexible operation, noise is low and the figure and the image quality advantages of higher of output.At present, ink-jet printer is widely used, and investigation statistics shows that the ink-jet printer that is using in the whole world has 3,600 ten thousand.The main at present grasp of inkjet technology is in external producer such as Epson, Canon, Hewlett-Packard, and the running stores of inkjet printing---ink-jet printer cartridge is also mainly by the monopolization of above-mentioned several companies.The abnormal height of print cartridge price that these several companies produce (this almost obtains the humiliation view in market) brings very big economic pressures to the consumer, causes the main cause of this phenomenon to monopolize exactly.In addition, current cartridge of ink-jet printer, be Chu Moti (as the print cartridge of EPSON series) with the sponge how, this is that the print cartridge of Chu Moti exists following shortcoming with the sponge: it is few 1. to deposit the China ink amount: because sponge takies certain space, the ink of the print cartridge storage of same volume is less relatively.2. the ink utilization rate is low: because the suction-operated of sponge always has a certain amount of ink to use in the print cartridge.3. easily produce print defect: because sponge is a porous structure, air is easy to be adsorbed in the space of sponge, becomes bubble again and flow into shower nozzle together with ink, causes and prints broken string; Moreover ink contacts with the long-time large tracts of land of sponge, and the color of ink and chemical property are understood some and changed, and As time goes on and to some extent the color that prints can change.4. be unfavorable for regeneration: the print cartridge that uses, residual in the sponge have bubble and an ink, and the printing effect after the regeneration is had a greatly reduced quality.5. the pollution to environment is bigger: because the printing effect after the print cartridge regeneration is undesirable, the print cartridge major part that uses can abandon, and ink residual in the print cartridge will flow into the Nature, causes environmental pollution.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of sponge of not being with is provided, and utilizes siphon and threshold two-way valve to realize ink-jet printer cartridge to the stable ink supply of printhead.

Technical solution of the present utility model is: no sponge ink-jet printer cartridge comprises a cartridge case, and it has a chamber at least, prints required ink to hold, and lower housing portion is the ink supply port that links to each other with printer, and top is opening; One cover covers the opening of housing; One cover air vent device is arranged on the cover; All be furnished with a cover threshold valve gear, a siphon pipe, an ink filt cover at each chamber of housing, the threshold valve gear is fixed on the top of ink supply port, ink filt cover is fixed on the bottom of housing cavity, and siphon pipe is communicated with ink filt cover and threshold valve gear, and ink filt cover lower openings place is welded with screen pack.

The utlity model has following advantage:

1, Chang siphon pipe provides a passage stably for the ink that enters before the printer head; Because printer is when printing, printhead moves back and forth at a high speed, will certainly cause the ink vibration in the print cartridge, and vibration can feed through to printer head, influences print quality; In addition, the bubble that vibration produces also might enter printer head influences print quality, and a long steady passage can make these influences be reduced to minimum.On the other hand, because the horizontal plane at printer head inkjet mouth place always is lower than the horizontal plane at print cartridge lower curtate place, so, utilize siphonage can the ink that conventional method can't be used be used, can get the ink printed in the print cartridge to the last drop on the principle;

2, the filtering surface of filter screen is down, like this, remains in particle on the filter screen behind the ink filter under the effect of self gravitation, will break away from filter screen, avoids particulate matter to pile up on filter screen, effectively reduces the probability that particulate matter enters printer head.

Description of drawings:

Fig. 1 is the stereogram of single chamber print cartridge global shape of the utility model one embodiment

Fig. 2 is the utility model list chamber print cartridge internal structure stereogram;

Fig. 3 is the print cartridge sectional view of the utility model one embodiment;

Fig. 4 is a threshold valve gear amplification sectional view;

Fig. 5 is the air vent device amplification sectional view;

Fig. 6 is the vertical view of cover;

Fig. 7 is the print cartridge sectional view after the utility model one embodiment variant;

Fig. 8 is pack into a sectional view behind the printer of the print cartridge of the utility model one embodiment.

Fig. 9 is the stereogram of the three chamber print cartridge global shapes of the utility model one embodiment;

Figure 10 is one of them chamber interior structural perspective of the utility model three chamber print cartridges

Figure 11 is the stereogram of the five chamber print cartridge global shapes of the utility model one embodiment;

Figure 12 is one of them chamber interior structural perspective of the utility model five chamber print cartridges

The specific embodiment:

Come the utility model is described in detail below in conjunction with drawings and Examples:

Fig. 1 and Fig. 2 are respectively stereogram and its internal structure stereograms of the utility model one embodiment list chamber print cartridge global shape, its concrete structure is referring to Fig. 3, housing 4 is main bodys of print cartridge, it has at least one chamber, to hold ink, ink filt cover 7 is fixed on the bottom of housing cavity, the top of ink filt cover 7 is cylindrical protrusions of hollow, connect siphon pipe 5, the bottom is an opening, and filter screen 8 is welded on the opening part of ink filt cover 7 bottoms, and siphonal other end is connected on the hollow cylindrical joint of threshold valve gear 6, threshold valve gear 6 is fixed on the ink supply port top of housing 4, and sealing ring 9 is contained in the ink supply port of housing 4.Ink in the flow direction in the housing cavity is during printing: it is earlier by filter screen 8 (shown in the direction of arrow among the figure), and ink is through after the filtration of filter screen 8, and the ink filt cover 7 of flowing through, siphon pipe 5 arrive threshold valve gear 6, flow into printer head through ink supply port again.

The effect of threshold valve gear 6 is for printer head provides external pressure suitable working environment, avoids all acting on the shower nozzle owing to the pressure that ink weight produces.As Fig. 4, it is made up of valve seat 11, spool 12, valve base plate 13; Spool 12 is by elasticity silica gel moulding preferably, valve seat 11 and valve base plate 13 are by harder plastic shaping, a, b two holes are arranged on the spool, cooperate with cylindrical projection on valve base plate 13 and the valve seat 11 respectively and form two unidirectional threshold valve a, b, the direction of unidirectional threshold valve b as shown by arrows, ink need overcome the threshold pressure (400Pa～800Pa), could enter printer head by valve b of design; Following in the constant situation of other condition, the size of threshold pressure is determined by cylinder height L on the valve seat 11 and spool thickness M; Like this, the size by design L and M can make the threshold pressure of valve b reach optimum state---make printing effect the best.The setting of valve a is in order to simplify production technology, when adopting vacuum to irritate China ink, can extract the air below the threshold valve gear 6 clean by valve a.

Cover 2 covers the opening on housing 4 tops by welding, on cover 2, one cover air vent device 3 is housed, the structure of air vent device 3 as shown in Figure 5, it is made up of pore nail 14, port sealing circle 15, pore spring 16, air-vent cap 17, air-vent cap 17 is fixed by welding on the cover, port sealing circle 15 is by rubber-moulding, when print cartridge is not packed printer into, because the preload pressure of pore spring 16, the path of pore seals, and can avoid using ink residual in the incomplete print cartridge to flow into nature, contaminated environment like this.Print cartridge is packed into behind the printer, and pore nail 14 is depressed (as shown in Figure 8) by the pressure hook on the ink container holder, and the pore path is opened, and print cartridge could operate as normal.One protruding c is arranged on the cover, and its upper surface can be protected pore nail 14, in order to avoid be subjected to improper extruding, collision like this a little more than the upper surface of pore nail 14; The curved end of pressure hook matches on arc-shaped concave d and the ink container holder, makes the curved end of pressure hook be easy to aim at the center of pore nail 14.

According to the utility model, can make the serial print cartridge of a chamber (as Fig. 1, Fig. 2), three chambers (as Fig. 9, Figure 10), four chambers, five chambers a plurality of chambers such as (as Figure 11, Figure 12).

Above-mentioned description with reference to drawings and Examples is just illustrative, and does not constitute qualification of the present utility model.Obviously, can carry out many modification on basis of the present utility model, for example as the structure of Fig. 7, it is one that the threshold valve gear holds with the filter device for ink, but does not break away from essence of the present utility model.

Claims

1, a kind of no sponge ink-jet printer cartridge, comprise a cartridge case, it has a chamber at least, print required ink to hold, lower housing portion has the ink supply port that links to each other with printer, top is opening, one cover covers the opening of housing, one cover air vent device is arranged on the cover, it is characterized in that all being furnished with a cover threshold valve gear at each chamber of housing, a siphon pipe, an ink filt cover, the threshold valve gear is fixed on the top of ink supply port, and ink filt cover is fixed on the bottom of housing cavity, siphon pipe is communicated with ink filt cover and threshold valve gear, and there is a screen pack at ink filt cover lower openings place.

2, no sponge ink-jet printer cartridge according to claim 1, it is characterized in that the threshold valve gear is made up of valve seat, spool, valve base plate, a, b two holes are arranged on the spool, respectively with valve base plate and valve seat on cylindrical projection fit in two unidirectional threshold valve a, b, ink overcomes threshold pressure and enters printer head by unidirectional threshold valve b, and threshold valve gear 6 following air extract clean by valve a.

3, no sponge ink-jet printer cartridge according to claim 1, it is characterized in that the air vent device on the cover is made up of pore nail, port sealing circle, pore spring, air-vent cap, air-vent cap is fixed on the cover, the pore spring is between pore nail and air-vent cap, the port sealing snare nails at pore, and the port sealing circle is by the elastomeric material moulding.

4, no sponge ink-jet printer cartridge according to claim 3 is characterized in that having on the cover a protruding c, and its upper surface is a little more than the upper surface of pore nail.