KR100963037B1

KR100963037B1 - Ink feeding device

Info

Publication number: KR100963037B1
Application number: KR1020100034585A
Authority: KR
Inventors: 엄영민
Original assignee: 엄영민
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2010-06-10
Also published as: WO2011129496A1; CN102218925A

Abstract

PURPOSE: An ink supply device is provided to improve printing quality by preventing external air from flowing into ink, and to automatically block external air when printing is stopped. CONSTITUTION: An ink supply device comprises an ink container(3), a lid(5), an inlet tube(6), and a cut part(7). One end of an ink discharging pipe(1) is exposed from the top of the ink container. The lid is coupled to the entrance of the ink container. A hole(4) is formed in the lid so that air can be circulated. The inlet tube is coupled to the bottom surface of the lid so that the air can be circulated in the ink container through the hole. The cut part is formed in the bottom of the inlet tube.

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 container, and having an inlet formed thereon. A lid having a flow hole formed therein so as to be detachable and flowable therethrough; and an inlet pipe coupled to the bottom of the lid so that air is introduced into the bottom of the ink container through the flow hole, and the end of which is blocked. It is formed in the lower portion is characterized in that it consists of an incision configured to block the inflow of external air while the air is introduced into the container when the printer sucks the ink during printing and the suction pressure is removed when the printing stops.

As described above, the present invention forms an incision in the inlet pipe in an ink supply device applied to an endless refill ink feeder, so that when negative pressure is generated according to printer printing inside the ink container, the external air is sucked in and the printing is interrupted to stop the external air. By doing so, there is an advantage that the print quality can be improved.

1 is an exploded perspective view showing an ink supply apparatus according to the present invention;
2 is an assembled cross-sectional view of FIG.
3 is a cross-sectional view showing another embodiment of the inlet pipe in FIG.
4 is an exploded perspective view showing another embodiment of the ink supply apparatus according to the present invention;
5 is an assembly cross-sectional view of FIG.
6 is an exploded perspective view showing another embodiment of the ink supply apparatus according to the present invention;
7 is an assembly cross-sectional view of FIG.
8 is an exploded perspective view showing another embodiment of the ink supply apparatus according to the present invention;
9 is an assembly cross-sectional view of FIG. 8;
10 is a cross-sectional view showing another embodiment according to the present invention.

1 and 2 is an exploded perspective view and assembly cross-sectional view showing the ink supply apparatus according to the present invention, one end of the ink discharge pipe (1) is penetrated through the upper side and exposed to the outside and the other end is located on the bottom surface inside the container An ink container 3 having an inlet 2 formed thereon, and a lid 5 having a flow hole 4 formed therein to be detachably attached to the inlet 2 of the ink container 3 and allowing air to flow therethrough. And an inlet pipe 6 made of a flexible material coupled to the bottom surface of the lid 5 so that air is introduced into the bottom surface of the ink container 3 through the flow hole 4, and the terminal is blocked. An incision, formed at the bottom of (6), configured to block external air inflow as it opens when the printer inhales ink during printing and enters into the container (3) and contracts when the suction pressure is removed during printing interruption. It consists of (7).

That is, when the cutout 7 is formed perpendicular to the inlet pipe 6, the outside air is introduced through the inlet pipe 6 while the pressure for sucking ink is formed by the pressure when it is formed in the container 3. When the printing is stopped, the pressure for sucking the ink is removed, so that the incision 7 is contracted again, thereby preventing the outside air from flowing into the container 3.

Here, the color identification member (8) is coupled to the upper surface of the lid 5, the bottom surface of the color identification member (8) is formed with an air inlet groove (9), the air inlet groove A communication groove 10 is formed in the lid 5 so as to communicate with 9 so that air flows into the flow hole 4 and the inflow pipe 6.

The color identification member 8 and the lid 5 is configured to be engaged by the coupling portion 11 of the gear shape.

In addition, the shape of the cutout 7 may be formed in a cross shape or the like, and may be a shape that can be opened and closed by underpressure regardless of the shape of the cutout 7.

Here, the end of the inlet pipe 6 is not formed to be blocked, and as shown in FIG. 3, the end of the inlet pipe 6 ′ is formed to be opened, and then a plug 12 may be separately manufactured. When the bar 12 is formed to be detachable, the plug 12 can be removed and the inlet pipe 6 'can be cleaned.

In describing the operation and effect of the present invention as described above, the ink discharge tube 1 is connected to the cartridge of the printer in a state in which the cap 5 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 outside air is sucked through the flow hole 4 and the inlet pipe 6, and the inlet 7 is opened by the negative pressure, and the outside air is released into the ink container ( 3) It is introduced inside.

Of course, the outside air can be introduced into the flow hole (4) through the air inlet groove (9) formed on the bottom of the color identification member (8).

As the cutout 7 is opened, when external air flows into the ink container 3, the ink is smoothly sucked into the printer.

When the print job of the printer is stopped in this state, the pressure for sucking ink disappears, and when the negative pressure formed inside the ink container 3 disappears, the cutout 7 closes and contracts again. Inflow into the ink container 3 is blocked.

That is, according to the printing operation and the printing stop of the printer, the incision 7 is immediately opened or contracted to perform the inflow and blocking of the outside air, so that the air is introduced into the cartridge by the air flowing into the ink container 3 during the printing operation. The ink can be prevented from being oversupplied to improve the print quality.

4 and 5 are exploded perspective and assembly cross-sectional views showing another embodiment of the present invention, of the inlet pipe (6 ') coupled to allow the outside air to flow through the flow hole (4) of the lid (5) The end is open, the fixing protrusion 13 is formed therein so as to be fixed to the end of the inlet pipe 6 ', and the through hole 14 is formed so that ink can flow therein, and the inlet pipe 6' Chamber 15 is formed to surround the incision 7 of the) is coupled.

When the chamber 15 is coupled to the inlet pipe 6 ', the negative pressure acts on the cutout portion 7 in a narrower space than the ink container 3, so that the flow of ink is small and precisely Inflow can be controlled.

Of course, even if the chamber 15 is arranged horizontally rather than vertically it will have the same effect.

In addition, the chamber 15 is divided into upper and lower portions, and the same effect can be obtained by fixing the divided upper and lower portions.

6 and 7 are exploded perspective views and cross-sectional views showing another embodiment of the present invention, which is located between the color identification member 8 and the lid 5 coupled to the lid 5 and the ink container ( 3) When the negative pressure is formed inside the valve means for introducing the outside air into the flow hole (4), and when the negative pressure is removed to block the outside air.

The valve means is formed of a flexible material and at least one cutting surface 16 is formed in the central portion is composed of a valve member 17 configured to control the air inlet.

The cut surface 16 of the valve member 17 is formed to be inclined with respect to the air inflow direction, so that the air inflow and blocking can be made more easily.

8 and 9 are exploded perspective and assembly cross-sectional views showing yet another embodiment of the present invention, which is integrally formed on the upper surface of the inlet pipe 6 'and is caught by the inlet 2 of the ink container 3. A disc-shaped packing 18 and a cut formed in the packing 18 so as to allow external air to enter or block the inlet pipe 6 'and close to the flow hole 4' of the lid 5. It is made of cotton (19).

The incision surface 19 is formed to be inclined so that when the negative pressure is formed in the ink container 3, the outside air is introduced and the negative pressure is removed to block the negative pressure.

In particular, the filter 20 is installed between the packing 18 and the lid 5 to remove dust and the like of the outside air introduced through the flow hole 4 '.

Of course, the same effect can be obtained even if the filter 20 is installed between the color identification member 8 and the lid 5 without being installed between the packing 18 and the lid 5.

Figure 10 is a cross-sectional view showing another embodiment according to the present invention, the ink container 21 is formed in a rectangular shape without a lid, such as a cartridge, and the outside air can be introduced into the interior of the ink container 21. Inlet hole 22 and inlet tube 23 installed so as to be fixed to the end of the inlet tube 23 and the fixing projections 27 are formed therein and through-holes so that ink can be introduced into the inside ( 24 is formed in the chamber 25 and the inlet tube 23, and formed to be located inside the chamber 25, and formed when the negative pressure is formed in the ink container is opened so that air is introduced and closed when the negative pressure is removed It is composed of a cutout 26.

That is, the above-described embodiment has been described for use in an ink container (for example, a cartridge) of a lidless type, and exhibits the same effect as the ink container having a lid.

1: ink discharge pipe 2: inlet
3: ink container 4, 4 ': flow hole
5: lid 6, 6 ': inlet pipe
7: Incision 8: Color identification member
9: air inlet groove 10: communication groove
11: coupling part 12: plug
13: fixed protrusion 14: through hole
15: chamber 16: cutting plane
17: valve member 18: packing
19: incision side 20: filter
21: ink container 22: inlet hole
23: inlet tube 24: through hole
25 chamber 26 incision
27: fixed protrusion

Claims

One end of the ink discharge pipe penetrates the upper side and is exposed to the outside, and the other end is located on the bottom surface of the inside of the container, and the ink container formed at the upper portion thereof is coupled to the inlet of the ink container, and detachable and air can flow. A lid formed with a flow hole so that air is introduced into the bottom surface of the ink container through the flow hole, and an inlet pipe having a closed end and a bottom end of the inlet pipe formed at the bottom of the inlet pipe so that the printer can print ink. And a cutout configured to block the inflow of external air by opening the air in the inhalation and contracting when the inlet pressure is removed when printing stops.

The method of claim 1,
Ink supply apparatus, characterized in that for forming at least one cut.

The method of claim 1,
It is coupled to the upper surface of the lid and the bottom includes a color identification member is formed with an air inlet groove, the communication groove formed in the lid so that the air flows into the flow hole and the inlet pipe is in communication with the air inlet groove Ink supply apparatus characterized in that.

The method of claim 1,
And a stopper formed to open the end of the inlet pipe and fitted to be detachably attached thereto, thereby closing the end of the inlet pipe.

The method of claim 1,
It is formed to open the end of the inlet pipe, the fixing protrusion is formed therein so as to be fixed to the end of the inlet pipe, a through hole is formed so that ink can be introduced into the inside formed to surround the incision of the inlet pipe An ink supply apparatus comprising a chamber.

One end of the ink discharge pipe penetrates the upper side and is exposed to the outside, and the other end is located on the bottom surface of the inside of the container, and the ink container formed at the upper portion thereof is coupled to the inlet of the ink container, and detachable and air can flow. A lid having a flow hole formed therein, an inlet pipe coupled to the bottom surface of the lid so that air is introduced into the bottom surface of the ink container through the flow hole, and having an open end, a color identifying member coupled to the lid; Located between the identification member and the lid and the ink supply device characterized in that it consists of a valve means for introducing external air into the flow hole when the negative pressure is formed in the ink container, and is blocked when the negative pressure is removed to prevent the external air flow .

The method of claim 6,
The valve means is characterized in that the ink supply device characterized in that the valve member configured to control the inflow of air is formed at least one cut surface in the central portion.

The method of claim 7, wherein
The cut surface of the valve member is formed inclined with respect to the air inflow direction, characterized in that the ink supply device.

One end of the ink discharge pipe penetrates the upper side and is exposed to the outside, and the other end is located on the bottom surface of the inside of the container, and the ink container formed at the upper portion thereof is coupled to the inlet of the ink container, and detachable and air can flow. A lid formed with a flow hole to seal the inlet while being caught by the inlet of the ink container, and a disc-shaped packing in which the inlet pipe is connected to the lower portion thereof, and formed in the packing to allow external air to flow through. And an incision surface formed to enter or block the inflow pipe.

10. The method of claim 9,
And a filter installed between the packing and the lid to remove dust and the like of external air introduced through the flow hole.

The method according to claim 3 or 6, wherein
And a filter installed between the lid and the color identifying member to remove dust and the like of external air introduced through the flow hole.

An ink container manufactured to fill ink therein, an inlet hole and an inlet pipe installed to allow external air to enter the inside of the ink container, and a fixing protrusion to be fixed to the end of the inlet pipe. Formed in the chamber and formed in the inlet pipe so as to allow ink to flow therein, and formed in the inlet tube and positioned inside the chamber, and when the negative pressure is formed in the ink container, the air is introduced and closed when the negative pressure is removed. Ink supply device, characterized in that consisting of a cut portion formed so that.