CN200988336Y

CN200988336Y - General printer ink box

Info

Publication number: CN200988336Y
Application number: CN 200620154152
Authority: CN
Inventors: 王海权
Original assignee: Ninestar Image Co Ltd
Current assignee: Zhuhai Ninestar Management Co Ltd
Priority date: 2006-12-04
Filing date: 2006-12-04
Publication date: 2007-12-12
Anticipated expiration: 2016-12-04

Abstract

The utility model relates to an ink box of the common used printer comprising an ink sac storing the ink and a control valve for air pressure difference, wherein, the control valve for air pressure difference makes the ink storage cabin of the ink sac stay in a negative pressure condition; a hard pressure control ring leans against a valve membrane provided with a small round hole with a convex-edge often sealed by a round cover; the control valve for the air pressure difference is positioned in the ink storage cabin or on a top cover; an air hole in the top cover or the ink storage cabin is communicated with the atmosphere; the open and close of the valve component is controlled by the elastic deformation of the valve membrane. The control valve for the air pressure difference controls the whole negative pressure in the ink storage cabin. Compared with a spring, the pressure control ring is not liable to be distorted, the precision and the stability is convenient to be controlled and the requirement of the production art is reduced, which reduce the production cost. The control valve of the air pressure difference is an one-way valve, which can prevent the ink from leaking from the ink storage cabin so that ink leakage-proof structure can be cancelled and the usage cost and the resistance of the system can both be reduced.

Description

A kind of universal printer print cartridge

Technical field

The utility model relates to a kind of universal printer print cartridge.

Background technology

In the prior art, application number discloses " print cartridge and the method for regulating liquid flow " by name by 03102633.8 Chinese invention patent ublic specification of application and put down in writing like that, in a kind of print cartridge, and the negative pressure of the valve arrangement of use diaphragm and spring generation mechanism.Negative pressure produces mechanism and is placed between ink storage area and the ink supply port, usually, by the loading force of spring with pressing diaphragm on valve seat, the sealing ink channel.Owing to discharge ink when causing ink supply port one side negative pressure overshoot value from record head, diaphragm resistance spring loading force is lifted off a seat, and temporarily gets through ink channel, therefore, ink flows to ink supply port from the ink storage area, and ink supply port one side negative pressure is returned below the setting simultaneously.

Because the stability of spring is not high, and is difficult to control, in order to assemble this spring, the manufacturing efficient that might cause ink cartridge reduces.Simultaneously, in order to guarantee the Ink Cartridge inner pressure balance, ink storage area and extraneous air are communicated with, and need to increase ink leakage preventing mechanism like this, thereby increase SR.

The utility model content

At the problem of above existence, the purpose of this utility model is to provide a kind of a kind of universal printer print cartridge that can ink stably be supplied with record head with easy valve arrangement.

A kind of universal printer print cartridge comprises the ink sac of ink outlet port and storage ink, and its special character is: the air pressure difference control valve that makes the storage China ink chamber of described ink sac be in negative pressure state communicates with the black chamber of the storage of ink sac.

According to the utility model, its special character is: described air pressure difference control valve by bullet because the technical solution adopted in the utility model, use the air pressure difference control valve to make described liquid containing district be in negative pressure state, the air pressure difference control valve utilizes the strain of valve film self to open or cut out ink or air flow passage.

By above scheme as seen, air pressure difference control valve of the present utility model is a whole negative pressure in the control ink storage chamber.Because the pressure control ring is not yielding with respect to spring, its precision and stability are convenient to control, reduce manufacture process requirement, thereby finally reduce cost.The air pressure difference control valve is a check valve, can prevent ink in the ink storage chamber toward external leakage, cancel ink leakage preventing mechanism so again, thereby further reduce use cost, reduce SR simultaneously.

Description of drawings:

Fig. 1 is the utility model air pressure difference control valve installment state decomposition texture schematic diagram.

Fig. 2 is the utility model print cartridge structural representation

Fig. 3 is the longitudinal sectional drawing along print cartridge air pressure difference control valve place

Among the figure, 1, pressure control ring 2, valve film 3, valve gap 4, diaphragm seal 5, ink sac 6, shell 7, front valve shell or store black chamber 8, air admission hole 9, gas port 10, passage 11, the black chamber 12 of storage, ink outlet port 13, ink filling port

The specific embodiment

Below in conjunction with the drawings and specific embodiments in detail the utility model is described in detail.

As shown in Figure 1 and Figure 2: a print cartridge is made up of the ink sac 5 and the shell 6 of storage ink, and an air pressure difference control valve has been installed in the ink sac 5, and this valve comprises: pressure control ring 1, valve film 2, valve gap 3, diaphragm seal 4, the black chamber 7 of storage.Be positioned at the passage at valve gap 3 edges and link to each other with gas port 9 on the ink sac, the front valve shell of valve or the center of storing black chamber 7 are provided with 3 thrusts, and there is the small sircle hole of a band chimb at the center of circular valve film 2, and the controlled pressure ring 1 of this circular hole withstands, and the pressure control ring is placed on the thrust.An air admission hole 8 is arranged on the ink sac, be convenient to air and enter in the print cartridge.Before installed printer, all sealed film of the passage on the air admission hole 8 on its ink sac, ink outlet port 12, ink filling port 13 and the valve gap is sealed, keeping the negative pressure in the ink sac, and the front valve shell of valve or store in the black chamber 7 ink is housed.During use, at first tear the air guide film on the ink sac, so print cartridge is loaded onto printer, when implementing to print, ink is inserted in the needle tubing sucking-off of ink outlet port 12, flows to tape deck continuously, at this moment, air then enters in the ink sac 5 from air admission hole 8,, makes to keep more constant negative pressure in the ink sac because ink sac 5 ink inside constantly reduce negative pressure variation in the caused ink sac with compensation.Specifically, when print cartridge is installed, valve film 2 is owing to be subjected to the negative pressure of printhead, its protruding circular hole edge leaves valve gap 3, thereby with valve open, outside air enters air admission hole 8 simultaneously, then by one section passage in the ink sac, to gas port 9, enter the black chamber 7 of storage, enter passage 10 subsequently, passage 10 communicates with the ink storage chamber 11 of ink sac, ink and air all can pass through this passage hole 10, along with the minimizing of 7 interior inks, air is constantly filled remaining space, when consumption of ink, it is certain substantially that air pressure in the ink sac keeps, and so just can guarantee that ink is provided for recording medium continuously glibly.

Claims

1, a kind of universal printer print cartridge comprises it is characterized in that the ink sac of ink outlet port and storage ink: the air pressure difference control valve that makes the storage China ink chamber of described ink sac be in negative pressure state communicates with the black chamber of the storage of ink sac.

2, a kind of universal printer print cartridge according to claim 1, it is characterized in that: the valve casing of the valve film that described air pressure difference control valve is made by elastomeric material, pressure control ring and proportioning valve parts constitutes, and described pressure control ring is arranged at side under the circular hole of described valve film.

3, a kind of universal printer print cartridge according to claim 2 is characterized in that: described valve film is the circular and middle small sircle hole that a chimb is arranged.

4, a kind of universal printer print cartridge according to claim 1, it is characterized in that: the air pressure difference control valve comprises: front valve shell or ink storage chamber, valve film, pressure control ring, rear valve body or circular cover, passage, gas port, wherein, have gas port 9 on the circular cover, have a little air admission hole at its edge; Gas port 9 communicates with air admission hole, front valve shell be one can storage ink concave surface, the middle part of concave surface is provided with several juts; The pressure control ring is to be made by rigid material such as hard plastic cement, the circular that the top of pressure control ring props up the valve film partly makes the circular hole of valve film contact with circular cover above it, the bottom of pressure control ring contacts with the valve body bottom, and the bottom of pressure control ring has several recesses.

5, a kind of universal printer print cartridge according to claim 2 is characterized in that: described pressure control ring is by less the making as hard materials such as plastic cement of distortion.

6, according to claim 1 or 2 or 3 or 4 or 5 described a kind of universal printer print cartridges, it is characterized in that: described air pressure difference control valve is arranged in the ink storage chamber or on the cover, cover or ink storage chamber have an air admission hole to communicate with atmosphere.

7, a kind of universal printer print cartridge according to claim 6 is characterized in that: the least significant end that ink port is arranged at print cartridge of advancing that flows to the ink outlet port passage.

8, a kind of universal printer print cartridge according to claim 7 is characterized in that: described air pressure difference control valve is an one-way valve mechanism.

9, a kind of universal printer print cartridge according to claim 8, it is characterized in that: the diameter of the mechanism of described check valve is between 10mm～30mm.

10, a kind of general printing machine print cartridge according to claim 9, it is characterized in that: described check valve is arranged on any one face of print cartridge.