KR20110115221A

KR20110115221A - Ink feeding device

Info

Publication number: KR20110115221A
Application number: KR1020100034586A
Authority: KR
Inventors: 엄영민
Original assignee: 엄영민
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2011-10-21

Abstract

The present invention relates to an ink supply device, and more particularly, to the ink refill ink supply, etc., and to improve the print quality and ink so that the outside air is introduced when the printer print operation, and the outside air is blocked when the printer is stopped. An ink supply apparatus which can achieve savings.
It is an object of the present invention to provide an ink supply device which not only smoothly supplies external air at the time of printing but also automatically cuts off the supply of external air at the time of printing stop.
In order to achieve the above object, the present invention provides an ink container having one end of the ink discharge pipe 1 penetrated on the upper side thereof and exposed to the outside, and the other end being located on the bottom surface of the inside of the ink container. 3), a lid 4 formed to seal the inlet 2 of the ink container 3 and detachable therebetween, and penetrated through the upper side of the ink container 3 so that one end is exposed to the outside. And the other end is coupled to the inflow pipe 5 located on the bottom side of the inside of the ink container, and the upper portion (exposed portion of the inflow pipe 5) of the inflow pipe 5, so that the negative pressure inside the ink container 3 when printing the printer. When formed, the air is introduced into the ink container (3), characterized in that it consists of a valve means configured to block the inflow of external air while being contracted when the suction pressure is removed when printing stops.

Description

Ink supply unit {INK FEEDING DEVICE}

The present invention relates to an ink supply apparatus, and more particularly, to be applied to an endless refill ink supply, etc., and to improve the print quality and ink by allowing the outside air to flow in when the printer is printing and the outside air when the printer is stopped. It relates to an ink supply device which can achieve savings.

In general, the infinite refill ink supply device used in inkjet printers and the like to install a large-capacity ink container on the outside of the printer, by connecting the ink container to the cartridge of the printer so that ink can be supplied to the cartridge to reduce the cost It is made up.

The ink supply device is configured to install four or six ink containers for each color of the ink and to connect the cartridge and the supply pipe of the printer. The ink container is always kept open to allow the outside air to flow. do.

That is, in order to supply ink from the ink container to the cartridge, external air must be supplied to the ink container. For this purpose, the lid of the ink container is always opened.

However, as described above, if the lid of the ink container is left open at all times, ink supply is easily performed at the start of printing, but even when the printing is stopped, ink flows into the cartridge by external air, which causes the ink to flow into the cartridge. There is a problem that oversupply occurs.

That is, even though printing is stopped, a small amount of ink is supplied to the cartridge due to the weight or inertia of the air and ink, which causes excess ink in the cartridge, resulting in deterioration in print quality due to excess ink at the next printing. There is a problem.

Accordingly, an object of the present invention is to solve the above problems, and to provide an ink supply device which not only smoothly supplies external air during printing but also automatically cuts off the supply of external air when printing is stopped. .

In order to achieve the above object, the present invention provides an ink container having one end of the ink discharge pipe penetrated through the upper side thereof and being exposed to the outside, and the other end being located at the bottom of the inside of the ink container, and having an inlet formed thereon. A lid formed to seal the inlet and detachable, an inlet tube penetrating through the upper side of the ink container, one end of which is exposed to the outside and the other end of which is located on the bottom side of the inside of the ink container, The valve means is coupled to the upper part (exposed part) and configured to block the inflow of external air by expanding when negative pressure is formed inside the ink container during printing of the printer, and introducing air into the ink container and contracting when the suction pressure is removed when printing is stopped. Characterized in that the configuration.

As described above, the present invention installs a chamber at an upper end of the ink container so as to be connected to an inlet pipe in an ink supply device applied to an infinite refill ink supply device, and installs a suction pipe formed with a cutout therein, so that the negative pressure according to printer printing inside the ink container is maintained. If this is formed by sucking the outside air and interrupt the outside air when printing is interrupted, there is an advantage that the print quality can be improved.

1 is a cross-sectional view showing an ink supply apparatus according to the present invention;
2 is an exploded perspective view showing the valve means in FIG.
3 is an exploded perspective view showing another embodiment in which the connection of the valve means is perpendicular to FIG. 2;
4 is a cross-sectional view of FIG.
5 is a cross-sectional view showing another connection state of the valve means in FIG.
6 is an exploded perspective view showing another embodiment of the valve means according to the present invention;
7 is an assembly cross-sectional view of FIG.

1 and 2 are a cross-sectional view and an exploded perspective view of the ink supply apparatus according to the present invention, one end of the ink discharge pipe (1) through the upper side is exposed to the outside and the other end is located on the bottom surface of the inside of the ink container An ink container 3 having an inlet 2 formed thereon, a lid 4 formed so as to seal the inlet 2 of the ink container 3 and being detachable, and the ink container 3 of the ink container 3 Installed through the upper side, one end is exposed to the outside and the other end is coupled to the inlet pipe (5) located on the bottom surface inside the ink container, and the upper portion (outside exposed portion) of the inlet pipe 5 to print the printer When the negative pressure is formed inside the ink container (3) when the air is introduced into the ink container (3) and the valve means configured to block the outside air inflow as the suction pressure is removed when the printing stops.

The valve means is coupled to the upper end of the inlet pipe (5), the flow hole (6) is formed so that the air flows and the chamber 7 is formed a predetermined size space therein, and the other end of the chamber (7) The suction pipe 9 is fitted in the suction pipe (9) formed in the suction pipe (9) and the end is located in the chamber (7) is closed and the exposed end is opened to form the inlet (8). When the negative pressure is formed in the inside), the outside air is introduced while the negative pressure is removed, and when the negative pressure is removed, the inlet portion 10 is formed to block the external air.

That is, when the cutout 10 is formed in the suction pipe 9, the pressure for sucking ink is increased by the pressure when the ink is sucked in the ink container 3, and the outside air is passed through the suction pipe 9 and the chamber 7. Is introduced, and when the printing is stopped, the pressure to suck the ink is removed, so that the cutout portion 10 is contracted again to block external air from entering the ink container 3.

Since the suction pipe 9 is made of a relatively flexible material, the suction tube 9 is easily expanded even when a relatively small negative pressure is formed inside the ink ink container 3, and closes while being immediately contracted when the negative pressure is removed.

3 and 4 are a perspective view and a cross-sectional view showing an embodiment in which the suction pipe 9 is connected at a right angle in the ink supply device according to the present invention, and is manufactured at right angles between the chamber 7 and the inflow pipe 5. And a connection member 12 having a communication hole 11 formed therein is coupled, and when the chamber 7 is in close contact with the ink container 3 at a right angle by the connection member 12, an ink supply device is provided. Becomes smaller in volume.

In describing the operation and effect of the present invention as described above, the ink discharge pipe 1 is connected to the cartridge of the printer in a state in which the cap 4 is coupled after filling the ink container 3 with an appropriate amount.

When the printer starts printing in this state, the ink is sucked from the cartridge. The ink is sucked into the cartridge through the ink discharge pipe 1, and a negative pressure is formed inside the ink container 3 to suck the ink.

When the negative pressure is formed in the ink container 3, the negative pressure acts on the suction pipe 9 through the inflow pipe 5 and the chamber 7, and the incision 10 is opened by the negative pressure, so that external air is released. It flows into the ink container 3.

As the cutout 10 is opened, when external air flows into the ink container 3, the ink is smoothly sucked into the printer.

In this state, when the printing operation of the printer is stopped, the pressure for sucking ink disappears, and when the negative pressure formed inside the ink container 3 disappears, the cutout 10 is closed again while closing, thereby causing external air Inflow into the ink container 3 is blocked.

That is, the incision 10 is opened or shrunk immediately according to the print job and the printing stop of the printer to perform the inflow and blocking of the outside air, so that the print cartridge may be supplied to the cartridge by the air flowing into the ink container 3 during the print job. The ink can be prevented from being oversupplied to improve the print quality.

Of course, unlike the present embodiment, it is possible to install and use the inlet pipe 5, the chamber 7, and the suction pipe 9 even in the ink container of which the top surface is blocked without the lid 4.

5 is an assembly cross-sectional view showing another embodiment of the present invention, the locking jaw 13 formed on the opposite side of the chamber 7 connected to the inlet pipe 5 and the suction pipe 13 to be caught by the locking jaw 13. And a filter 15 configured to remove dust from external air introduced into the hooked flange 14 and introduced into the suction pipe 9.

That is, the engaging jaw 13 and the engaging flange 14 are formed such that the suction pipe 9 is inserted into the chamber 7 entirely, and the filter 15 is installed on the engaging flange 14 side. It is configured to remove the dust of the air flowing into the suction pipe (9).

6 and 7 are exploded perspective and assembly cross-sectional views showing another embodiment of the present invention, which is formed to be inserted into the chamber (7), the cutting surface (16) is formed at the end and the engaging flange (17) is formed at the other end. On one end of the control valve 18, the locking groove 21 formed on the outer circumferential surface of the chamber 7 to fix the control valve 18, and the locking projection 22 to be caught by the locking groove 21. The valve means is constituted by an outer cover 20 which is formed and has a filter 19 formed at its end.

When the negative pressure is formed in the ink container 3, the control valve 18 is configured to enter the outside air while the cutting surface 16 formed at the end as shown in FIG.

1: ink discharge pipe 2: inlet
3: ink container 4: lid
5: inlet pipe 6: flow hole
7: chamber 8: inlet
9: suction line 10: incision
11: communication hole 12: connecting member
13: Hanging jaw 14, 17: Hanging flange
15, 19: filter 16: cutting plane
18: control valve 20: outer cover
21: engaging groove 22: engaging projection

Claims

One end of the ink discharge pipe penetrates the upper side and is exposed to the outside, and the other end is located at the bottom surface of the inside of the ink container, and the ink container formed at the upper part of the ink container is sealed at the upper part of the ink container. And, the inlet is installed through the upper side of the ink container is exposed to the outside and the other end is located on the bottom surface of the inside of the ink container, the inlet pipe is coupled to the upper portion (exposed to the outside) of the printer An ink supply device comprising: a valve means configured to block inflow of external air while air is introduced into the ink container while a negative pressure is formed inside the ink container during printing, and contracted when the suction pressure is removed when printing is interrupted.

The method of claim 1,
The valve means is coupled to the upper end of the inlet pipe, the flow hole is formed so that the air flows, and a chamber having a predetermined size of space therein, the other end of the chamber is coupled to the end is located inside the chamber is closed and the outside A suction tube formed in the suction tube and expanded when negative pressure is formed inside the ink container, and the inlet is formed to block external air while being contracted when negative pressure is removed. An ink supply device characterized in that the configuration.

The method of claim 2,
And a connection member coupled between the chamber and the inlet pipe and formed at a predetermined angle and having a communication hole formed therein.

The method according to any one of claims 1 to 3,
A catching jaw formed on the opposite side of the chamber connected to the inlet pipe, a catching flange formed on the suction pipe so as to be caught by the catching jaw, and a filter configured to remove dust of external air which is attached to the catching flange and flows into the suction pipe. An ink supply apparatus, characterized in that it comprises.

The method of claim 1,
The valve means is formed so as to be inserted into the chamber and the cutting surface is formed at the end and the other end of the control valve is formed with a flange, a locking groove formed on the outer peripheral surface of the chamber to secure the control valve, and the locking groove to be caught An ink supply device, characterized in that the locking projection is formed on the inner surface and the outer cover formed with a filter at the end.