WO2013020481A1

WO2013020481A1 - Quantitative ink filler and ink filling method for filling quantitative ink in ink box by using same

Info

Publication number: WO2013020481A1
Application number: PCT/CN2012/079611
Authority: WO
Inventors: 钦雷; 刘文科
Original assignee: 珠海纳思达企业管理有限公司
Priority date: 2011-08-05
Filing date: 2012-08-03
Publication date: 2013-02-14
Also published as: JP2014524366A; CN102390179A; CN102390179B

Abstract

Disclosed are a quantitative ink filler and a method for filling quantitative ink in an ink box by using the same. The quantitative ink filler comprises: an ink storage container (12, 23), for storing filled ink; a quantifying unit, for quantifying the ink stored in the ink storage container according to the volume of the ink box to be filled; an air hole (151, 231), for supplying air to the ink storage container so as to maintain the pressure balance in the ink quantifying process; and an ink filling pipe (13, 25), for conveying the ink quantified by the quantifying unit to the ink box to be filled. The quantifying unit is connected between the ink storage container and the ink filling pipe. A non-return valve (19, 28) is arranged between the ink storage container and the quantifying unit. The quantifying unit comprises a cylinder member (11, 24), an internal moving member (12, 29) moving back and forth inside the cylinder member, and a limit component (17) limiting a moving distance of the internal moving member. In the ink filling process, the purpose of quantification can be achieved by a user just by moving the internal moving member once, and ink filling can be finished just by pushing the internal moving member to the original position; therefore, the process is simple and convenient. Due to the action of the limit component, the ink amount in each quantification is constant, and therefore the accurate ink quantification is ensured.

Description

Ink quantitative filling device and ink filling method using same for injecting quantitative ink into ink cartridge

The present invention relates to an ink metering filler and an ink filling method using the same to inject a predetermined amount of ink into an ink cartridge. Background technique

The ink jet printer ejects ink onto a recording medium such as paper through a nozzle of the print head under the driving of a printing signal to complete recording of characters or figures. With the continuous development of inkjet technology, the size of inkjet printers is becoming smaller and smaller, and accordingly, the volume of ink cartridges as ink storage containers is also limited. For this reason, users need to constantly replace ink cartridges. However, most of the old ink cartridges are discarded, and these discarded ink cartridges include plastic, film and other components, most of which are not naturally degraded. Obviously, this will result in waste of resources and environmental pollution. For this reason, the preferred method is : Do not replace the ink cartridge, and fill the ink cartridge to obtain a secondary use value. Therefore, in order to meet this demand, many ink filling tools for ink cartridge filling have appeared on the market.

At present, the ink replenishing method adopted by many people in the market is to inject ink into the ink cartridge by using a positive pressure of a syringe or an ink-filling bottle. Basically, it is visually determined that the ink-filling is stopped when the ink cartridge is to be filled, which is relatively simple. However, some of the common split type ink cartridges are made of black plastic, and it is difficult for the user to observe the specific capacity of the ink cartridge, which means that it is difficult to observe whether the ink is sufficient when the ink is injected, and it is easy to overflow. The problem. For this reason, for the above-mentioned ink cartridges, a manufacturer has introduced a "quantitative filling bottle" ink replenishing device. The quantitative filling bottle comprises an ink storage chamber, a metering chamber and an ink filling tube, wherein the ink storage chamber and the metering chamber communicate with each other via a hose. Under normal circumstances, the ink inlet of the hose is located in the ink chamber of the ink storage chamber. Above the face. The process of injecting the ink cartridge by using the above filling bottle is: immersing the ink inlet of the hose in the ink, and then squeezing the outer wall of the ink storage chamber to increase the pressure in the ink storage chamber, and the ink flows along the hose In the quantitative chamber, the above-mentioned squeezing action is repeated several times. When the filling chamber is filled with ink, the squeezing action is stopped, and the filling bottle is rotated to make the ink filling tube When the ink cartridge is to be connected, the ink inlet of the hose is again located above the ink level of the ink storage chamber. At this time, the outer wall of the ink storage chamber is again squeezed to allow the air in the ink storage chamber to enter the quantitative chamber along the hose. The ink pushing the dosing chamber flows down into the ink cartridge, and the above-described squeezing action is repeated several times until the ink in the dosing chamber is observed to be injected into the ink cartridge to complete the ink filling action. Obviously, the quantitative filling of the above filled bottles is simple and convenient.

However, the above-mentioned filling bottle has the following problems: The operation is cumbersome, the pressing and the ink injection require multiple presses, and the number of pressing times is excessive; the pressing position is not clear, because the user does not know which position of the outer wall of the ink storage chamber is pressed to bring the ink or The air is output through the hose, which in turn increases the number of presses; the quantitative inaccuracy is easy to occur, because the metering chamber is filled with ink, the user needs to observe it himself, so if the user holds the bottle in a wrong position, observe The amount of ink that is delivered may vary, and there may be cases where the ink level is insufficient or the ink level is excessive. Summary of the invention

The present invention provides an ink metering filler to solve the technical problems of the cumbersome operation of the conventional ink metering filler and the inaccurate quantitative inaccuracy.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

An ink quantitative filler comprising:

An ink storage container for storing ink for filling;

a quantifying unit, wherein the ink stored in the ink storage container can be quantified according to the volume of the ink cartridge to be filled, and the quantifying unit forms a quantification space for storing the quantitative ink during the process of quantifying the ink;

a venting hole that replenishes air into the ink reservoir in an ink dosing step to maintain its pressure balance;

An ink filling tube, wherein the ink quantified by the quantitative unit is delivered to the ink cartridge to be filled;

Characterizing that the ink storage container communicates with the quantitative unit via a one-way valve, the quantitative unit includes a cylindrical member, An inner moving member that moves back and forth inside the cylindrical member and a limiting member that limits the moving distance of the inner moving member.

The one-way valve is disposed between the barrel and the ink reservoir.

The inner moving member is provided with a piston that cooperates with the tubular member at one end, and a handle for pulling it up and down along the tubular member at the other end. The ink metering filler further includes a cover that seals the barrel and the ink container.

The volume of the quantitative space is less than the volume of ink stored in the ink reservoir.

The inner moving member is an inner hollow ink cartridge, and the ink cartridge simultaneously serves as the ink storage container.

The inner moving member is a piston rod.

The handle is fixedly coupled to the ink cartridge.

The handle is disposed to be hollow inside, and the air hole is located on the handle.

The one-way valve includes a valve seat formed with a valve hole and a valve body that cooperates with the valve seat to cover the valve hole.

The valve core is an umbrella-shaped valve core including a disc portion and a rod portion, and the disc portion can cover or deviate from the valve hole according to a pressure difference between two sides thereof, and the rod portion fixes the valve core On the valve seat.

The present invention also provides an ink refilling method for injecting a predetermined amount of ink into an ink cartridge using the above-described ink metering filler, characterized in that it comprises the following steps:

A. moving the inner moving member to a position defined by the limiting member in the cylindrical member to form a quantitative space connected to the ink storage container via the one-way valve, while the ink in the ink storage container moves To the quantitative space;

B. Moving the inner moving member to the original position in the cylindrical member to move the ink stored in the quantitative space into the ink cartridge to be filled.

The quantitative space is defined by the inner moving member, the cylindrical member, and the limiting member.

In the step A, the one-way valve and the air hole are both in an open state, and in the step B, the one-way valve and the air hole are all in a closed state.

After adopting the above technical solution, the user only needs to move the internal moving member once to achieve the quantitative purpose, and In the role of the limit member, the amount of ink per quantification is constant, ensuring accurate ink quantification, and only need to push the inner transfer member to the original position to complete the ink refilling, which is simple and convenient. The invention solves the technical problem that the existing ink quantitative filler is cumbersome to operate and is prone to quantitative inaccuracy. DRAWINGS

Figure la is a schematic view of the appearance of an ink quantitative filler according to an embodiment of the present invention;

Figure lb is a schematic diagram of its decomposition structure;

2a is a cross-sectional view of an ink metering filler according to an embodiment of the present invention;

Figure 2b is a partial enlarged view of the check valve when the filler is not in use;

3a is a schematic view showing a state in which the ink quantitative filling device performs quantitative operation according to an embodiment of the present invention;

Figure 3b is a partial enlarged view of the one-way valve at this time;

4 is a schematic view showing a state in which an ink quantitative filling device performs an ink filling operation according to an embodiment of the present invention;

5a is a schematic view showing the appearance of an ink quantitative filler according to a second embodiment of the present invention;

Figure 5b is a schematic diagram of its exploded structure;

6a is a schematic view showing the closed end of the outer casing of the ink quantitative filling device according to the second embodiment of the present invention;

Figure 6b is a schematic view of the interior of the housing as viewed from its open end;

Figure 7a is a cross-sectional view of an ink quantitative filler according to a second embodiment of the present invention;

7b is a schematic view showing a state in which the ink quantitative filling device performs quantitative operation according to the second embodiment of the present invention;

Figure 7c is a schematic diagram of the state in which the ink filling operation is performed.

DESCRIPTION OF SYMBOLS: 1, 2 ink quantitative filler, 11 outer cylinder, 111, 211 closed end, 1111 raised, 112, 212 open end, 12 ink tank, 121 upper end, 122 lower end, 123 internal space, 124 mating part, 13, 25 ink injection tube, 131 ink inlet, 132 ink outlet, 14 piston sleeve, 15 handles, 151 air holes, 152 rubber plugs, 16 seal covers, 17 ring shoulders, 18 face covers, 19, 28 check valves, 191 seats, 192 spools, 1921 discs, 1922 rods , 1923 Restrictions, 193, 283 Valve Holes, 194, 284 Through Holes, 195, 285 Limit Blocks, 20 Quantitative Space, 21 Enclosures, 22 Separators, 221 Notch, 23 Ink Tanks, 231 Air Holes, 232 Inlet Outlet, 24 suction chamber, 26 cover, 261 holes, 27 plates, 29 piston rods, 291 pistons, 292 handles, 30 quantitative space. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The main technical solution of the present invention is: by using a one-way valve between the dosing unit of the filler and the ink storage container, and setting a limit portion in the filler, so that the amount of ink per quantification is constant, and only It is necessary to pull and push back the internal moving parts of the quantitative unit to complete the process of quantification and ink filling, which is simple and convenient.

The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

Embodiment 1:

Figure la is a schematic view of the appearance of the ink quantitative filler in the present embodiment, and Figure lb is a schematic exploded view of the structure. As shown in FIGS. 1 and 1b, the ink dosing filler 1 includes: a cylindrical member. Preferably, in the present embodiment, the cylindrical member is an outer cylindrical member 11, and the outer cylindrical member 11 is a cylindrical hollow cylindrical member. The inner portion can be used for storing a fluid, and one end is a closed end 111, and the other end is an open end 112 communicating with the atmosphere; the inner moving member can move back and forth inside the cylindrical member. Preferably, the inner moving member in this embodiment is The ink cartridge 12, wherein the ink cartridge 12 is also a hollow cylindrical tubular member, and has an outer diameter slightly smaller than the inner diameter of the outer cylindrical member 11, so that it can be from the open end of the outer cylindrical member 11

112 is loaded into the outer cylinder member 11, and the ink cartridge 12 is disposed to be reciprocally movable up and down in the outer cylinder member 11, depending on the posture in the use state, The ink cartridge 12 can be divided into an upper end 121 and a lower end 122, and a space 123 for storing ink is formed therein, that is, the ink cartridge 12 is equivalent to an inner moving member that moves back and forth in the outer cylindrical member 11, and is equivalent to an ink storage container. An ink tube 13 is further formed with an outwardly extending engaging portion 124; the ink injecting tube 13 is in communication with the outer tube member 11, specifically, the closed end 111 of the outer tube member 11, and includes the above The ink inlet end 131 connected to the outer cylinder member 11 and the ink discharge end 132 communicating with the ink cartridge to be filled, when the filler 11 is used, the quantified ink is injected into the ink cartridge to be filled via the ink filling tube 13, and The ink injecting tube 13 may be formed at one time with the outer cylindrical member 11 by injection molding, or may be separately manufactured and then connected by a card connection or a spiral connection. In the present embodiment, for the purpose of less assembly steps, preferably, the above-mentioned ink refilling The tube 13 is injection-molded between the outer tube member 11 and the outer tube member 11; the sealing cover 16 is sleeved with the ink-filling tube 13 for sealing the ink-filling tube 13 when the filler 11 is not in use to prevent air from passing through the ink-filling tube. 13 and outside In the cylindrical member 11, and protecting the ink discharge end 132 of the ink filling tube 13 from damage; the cover plate is used for sealing the ink storage container and the cylindrical member, since the ink storage container is also an internal moving member in the embodiment, that is, The sealing cylinder can seal the ink storage container. Therefore, in the present embodiment, the cover plate is a cover 18 having a shape and a diameter corresponding to the outer cylindrical member 11, which can be combined with the outer cylindrical member 11 The outer tubular member 11 is sealed to form a substantially closed space. At the same time, obviously, in order to ensure the reciprocating movement of the ink cartridge 12 in the outer cylindrical member 11, a surface of the cover 18 is formed to allow the ink cartridge 12 to move. The hole has a certain gap between the ink cartridge 12 and the hole, so that the air between the ink cartridge 12 and the face cover 18 can be discharged outside the filler 11 through the slit when the ink cartridge 12 moves upward.

Figure 2a is a cross-sectional view of the ink metering dispenser of the present embodiment. In order to ensure the back and forth movement of the inner moving member in the cylindrical member, one end of the inner moving member is provided with a piston that cooperates with the cylindrical member, that is, in the embodiment, one end of the ink cartridge 12 is provided with the outer cylinder 11 Fit the piston. As shown in Fig. 2a, the lower end 122 of the ink cartridge 12 is provided with a piston sleeve 14, which is made of an elastic material, the inner diameter of which is equivalent to the outer diameter at the lower end of the ink cartridge 12, and the outer diameter and the inner diameter of the outer cylinder member 11. Similarly, the piston sleeve 14 can be tightly mounted on the lower end 122 of the ink cartridge to form a piston, and the piston sleeve 14 and the inner wall of the outer cylinder member 11 can cooperate with each other in a clearance fit manner, so that the piston sleeve 14 and the piston sleeve 14 are The ink cartridge 12 is reciprocally movable up and down in the outer cylinder member 11 to perform ink doping and ink refilling operations by the cooperation between the inner walls of the outer cylinder member 11. In addition, in order to facilitate the user to better pull or push the piston up and down, the other end of the inner moving member is further provided with a handle 15, That is, in the embodiment, one end of the ink cartridge 12 is provided with a handle 15, and the handle 15 can cooperate with the engaging portion 124, and the handle 15 can be combined with the engaging portion 124, that is, the ink cartridge 12 The molding may be integrally connected to the ink cartridge 12 by a card connection or a screw connection, that is, the handle 15 and the ink cartridge 12 are fixedly connected. In this embodiment, in order to facilitate the assembly operation, preferably, The handle 15 and the ink cartridge 12 are fixed together via a screw connection.

As shown in FIG. 1b, a limiting portion is further disposed near the upper end 121 of the ink cartridge. Specifically, the limiting portion is a ring shoulder 17 on the outer wall of the ink cartridge 12. When the user holds the handle 15, the ink cartridge 12 is pulled up to When the ring shoulder 17 abuts the cover 18, the user cannot continue to pull the ink cartridge 12 upward. Obviously, the ring shoulder 17 (limit portion) can limit the moving distance of the ink cartridge 12 in the outer cylinder 11, and the ink cartridge The distance moved by 12 determines the amount of ink that is quantified in the ink cartridge 12, that is, the moving distance of the ink cartridge 12 can be determined according to the specific volume of the ink cartridge to be filled, that is, the ring shoulder 17 (Limited Portion) The position of the outer wall of the ink tank 12 can be determined according to the specific volume of the ink cartridge to be filled. Further, the limiting member forms a quantitative space for accommodating the quantitative ink between the ink cartridge and the outer cylinder, and the volume of the quantitative space is smaller than the volume of the ink stored in the ink cartridge; that is, the limiting member can A quantitative space is formed between the ink storage container and the cylindrical member to accommodate the quantitative ink and the volume is smaller than the volume of the ink stored in the ink storage container.

As shown in FIGS. 2a and 1b, the ink cartridge 12 and the outer cylinder member 11 are connected via a one-way valve 19, wherein the one-way valve 19 is opened from the ink cartridge 12 to the outer cylinder member 11, that is, only The ink can be allowed to flow from the ink cartridge 12 to the outer cylinder member 11, while the ink is not allowed to flow from the outer cylinder member 11 to the ink cartridge 12. As shown in FIG. 2b, the check valve 19 includes a valve seat 191 and a valve body 192, wherein the valve seat 191 is composed of a plate member that cooperates with the lower end opening of the ink cartridge 12 to close the ink cartridge 12. The valve seat 191 The center of the center is provided with a through hole 194, and a plurality of valve holes 193 are arranged around the valve core 192, and the valve body 192 is formed of an elastic valve body, and includes a disk portion 1921 and a rod portion 1922. The diameter of the disk portion 1921 is larger than the outer diameter of the plurality of valve holes 193, that is, it can cover the valve hole 193, and the disk portion 1921 can close or deviate from the valve hole according to the pressure difference between the two sides. 193, in order to close or open the ink flow passages on both sides thereof, to selectively connect or block the ink flow between the ink cartridge 12 and the outer cylinder member 11; and the diameter of the rod portion 1922 is equivalent to the through hole 194. Pass The disk portion 1922 is fixed to the valve seat 191 to cover the valve hole 193 by the cooperation between the rod portion 1922 and the through hole 194; and the disk portion 1921 is restricted from being deformed when deformed. The deformation of the rod portion 1922 is finally released from the through hole 194. Preferably, in the embodiment, the rod portion 1922 is further formed with an annular restricting portion 1923 having a diameter larger than the diameter of the through hole 194. When the one-way valve 19 is in the open state, the restricting portion 1923 can prevent the valve body 192 from coming off the through hole 194. Obviously, the disk portion 1921 is used as a dividing point, and both sides thereof can be referred to as an ink cartridge side and an outer cylinder side, respectively. 2b is a schematic view showing the closed state of the check valve 19, in which the disk portion 1921 also covers the valve hole 193 to block the passage of ink due to the pressure balance on both sides of the disk portion 1921. FIG. 3b shows the open state of the check valve 19. In the schematic view, the pressure difference between the two sides of the disk portion 1921 reaches or exceeds a predetermined value, and the disk portion 1921 drives the rod portion 1922 downwardly under the pressure difference to the restricting portion 1923 to abut against the valve seat 191. When the disk portion 1921 has deviated from the above-described valve hole 193, that is, the ink passages that communicate the ink cartridge side and the outer cylinder side are opened, the ink can flow into the outer tubular member side via the ink passage, and the arrows in the figure indicate the ink flow direction. One of ordinary skill in the art will appreciate that the plate member that closes the open end 122 of the ink cartridge can be separated from the valve seat in two parts, that is, the valve seat is a partition or other similar structure that can extend from the wall of the ink cartridge. It does not need to be formed directly from the above plate member. At the same time, it will be understood by those skilled in the art that the above-mentioned valve core can also be a film made of an elastic material.

As shown in FIG. 2a, the filler 1 is further provided with an air hole 151 for mainly ensuring the pressure balance inside the ink cartridge 12 during the quantification of the ink. In the embodiment, the air hole 151 is disposed in the ink cartridge 12. The handle 15 is in direct communication with the ink cartridge 12 via the handle 15, in other words, the interior of the handle 15 is also hollow. In the present embodiment, in order to simplify the assembly process, the air hole 151 is normally sealed by the rubber stopper 152, and is opened only when it is used to allow the ink cartridge 12 to communicate with the outside atmosphere. Specifically, the air hole 151 is only in the ink amount. The process is turned on to connect the ink cartridge 12 to the outside atmosphere, and the sealed state is ensured in the ink filling step. It should be understood by those skilled in the art that the air hole may be disposed on the surface cover 18 or any other position communicating with the ink cartridge 12. The air hole may also be sealed by a self-closing sealing ring, that is, on the sealing ring. A self-closing slit is formed. When there is a pressure difference between the ink cartridge and the external atmosphere, the self-closing slit can be opened under the pressure difference to allow air to enter the ink cartridge, and the pressure balance between the ink cartridge and the external atmosphere. When the self-closing seam can be closed under its own elasticity, the ink cartridge and the atmosphere are insulated. the relationship between.

In addition, in order to ensure that the ink cartridge 12 can be moved down along the inner wall of the outer cylinder member 11, a lubricant such as silicone oil is often disposed between the ink cartridge 12 and the inner wall of the outer cylinder member 11 to reduce friction therebetween. However, if the number of movements of the ink cartridge 12 in the outer cylinder member 11 is too large, the lubricant easily flows into the ink cartridge along the cylinder wall and the ink injecting tube 15, contaminating the ink inside the ink cartridge, and the design is passed. A ring protrusion 1111 is disposed on the bottom surface of the closed end 111 of the outer cylinder member 11, and the protrusion 1111 is located between the cylinder wall of the outer cylinder member 11 and the ink inlet end 131 of the ink injection tube 13, that is, the protrusion 1111 is surrounded. The ink inlet end 131 is configured to block the flow of the lubricant from flowing into the ink injecting tube 13. Obviously, the protrusion 1111 extends from the bottom wall of the closed end 111 toward the open end 112. The height of the protrusion 1111 can be set according to specific needs, generally set small, and the protrusion 1111 can be compared with the above when the filler 1 is not in use. The lower end 122 of the ink cartridge 12 abuts, specifically, a plate member which constitutes both the ink cartridge 12 and the one-way valve seat 191. Since the projection height of the projection 1111 is often set small, the distance between the lower end 122 of the ink cartridge and the closed end 111 of the outer cylinder is small, and the space formed between the two is small, which is almost negligible. Further, the above-mentioned projections 1111 can also prevent adhesion between the outer cylinder member 11 and the ink cartridge 12 when the contact time is too long, which makes it difficult for the user to pull the ink cartridge 12. It will be understood by those skilled in the art that when the type of the lubricant, the type of the lubricant, or the like is different, or the materials of the end faces which are in contact with the ink cartridge and the outer cylinder are not easily bonded, or There are other similar solutions that can solve the problem of movement between the two. The above-mentioned protrusions may not be provided in the outer cylinder member, that is, the outer wall surface of the inner closed end of the outer cylinder member and the outer wall surface of the lower end of the ink cartridge may be in direct contact. .

The process of ink replenishment using a filler will be described below with reference to Figs. 2a-4.

(1) As shown in Fig. 2a, when the filler 1 is not in use, the ink discharge end 132 of the ink filling tube 13 is closed by the sealing cover 16, the plate member abuts against the projection 1111, and the check valve 19 is in a closed state, such as As shown in Fig. 3a, when the filler 1 is started, the rubber plug 152 of the sealing air hole 151 should be pulled out first, and the filler 1 is placed in a posture in which the ink in the ink cartridge 12 does not leak through the air hole 151, and the filling is held. The outer cylinder member 11 of the device 1 then pulls the handle 15 in the direction indicated by the arrow A to move the ink cartridge 12 upward along the inner wall of the outer cylinder member 11, and the ink cartridge lower end 122 and the closed end 111 of the outer cylinder member 11 The distance between them gradually increases, That is, the space between the two is also getting larger and larger, and a negative pressure is formed in the outer cylinder member 11, and a pressure difference is gradually generated between the outer cylinder member 11 and the ink cartridge 12, and when the pressure difference reaches a predetermined value, the disc is made The portion 1921 drives the rod portion 1922 to move upward to cause the disc portion 1921 to deviate from the valve hole 1923 to communicate the ink cartridge side and the outer cylinder side, so that the ink flows from the ink cartridge side to the outer cylinder side (as shown by the arrow in FIG. 3b). At the same time, the external atmosphere is replenished to the inside of the ink cartridge 12 via the above-mentioned air holes 151 to maintain the pressure balance. As shown in FIG. 3a, when the ring shoulder 17 is in contact with the face cover 18, the ink cartridge 12 cannot continue to move upward. The distance between the closed end 111 and the lower end 122 is fixed, and a certain amount of space 20 is formed between the outer cylinder member 11 and the ink cartridge 12. After the attitude is maintained for two or three seconds, the pressure between the ink cartridge 12 and the outer cylinder member 11 is balanced. At this time, the ink having the same volume as the above-described quantitative space 20 in the ink cartridge 12 is replenished into the quantitative space 20, and the check valve 19 is again closed, that is, the disk portion 1921 covers the valve hole 192 again, the ink cartridge 12 and the outer cylinder The ink path between pieces 11 again Blocked, obviously, the above process is a process of quantifying the ink; (2) as shown in FIG. 4, the air hole 151 is again sealed by the rubber stopper 152, the sealing cover 16 is removed, and the ink filling tube 13 and the ink to be filled with the ink cartridge are removed. The injection hole is connected, and the ink cartridge 12 is pushed downward by the handle 15 in the direction indicated by the arrow B, and the ink of the quantitative space 20 of the outer cylinder 12 flows into the ink cartridge through the ink filling tube 13, that is, the lower end 122 and the closed end. The distance between the ends 111 gradually decreases until the distance between the ends is zero, and the above-mentioned quantitative space 20 completely disappears, so that the ink originally stored in the quantitative space 20 flows into the ink cartridge through the ink filling tube 13, This is the ink filling step;

(3) The above-mentioned ink-filling tube 13 is pulled out and sealed again by the sealing cover 16, while sealing the above-mentioned ink injection hole to seal the ink cartridge.

As can be seen from the above-described ink priming step, the above-described quantification process is a process of transferring a certain volume of space 20 from the outer cylinder member 11 and the ink cartridge 12 to transfer the ink of the same volume as the quantitative space 20 from the ink cartridge 12 to the quantitative space 20. The above-described ink filling step is a process of gradually reducing the above-described formed quantitative space 20 to disappear by a decrease in the distance between the lower end 122 of the ink cartridge and the closed end 111 of the outer cylindrical member. That is to say, when the above-mentioned ink metering filler 1 achieves the purpose of quantitative ink injection, two steps must be completed: ink quantification and ink injection; moreover, in the process of quantifying the ink, the check valve and the air hole are all in an open state. Allowing ink to move from the ink cartridge 12 (ink storage container) to the outer cylinder member 11 (cylinder member), and ensuring internal pressure balance of the ink cartridge 12 (ink storage container); during the ink filling process, the check valve and the air vent are both The closed state prevents ink from flowing back into the ink tank 12 (ink storage container) and prevents air from entering the ink cartridge. In summary, it can be seen from the above-mentioned ink filling step that the limiting member can ensure that the ink can be accurately quantified every time, that is, to ensure accurate quantification; the air hole can ensure that the ink cartridge maintains pressure balance in the quantitative step, and the one-way valve can ensure ink quantification. The flow direction of the ink in the step prevents the ink from flowing back and ensures the sealing of the ink cartridge. Through the combination of the above three, it can be ensured that the quantitative space can be sequentially appeared in the filling process and the quantitative space disappears, and only the ink cartridges need to be pulled once or pushed once to complete the quantitative and ink-injecting operations, thereby ensuring filling. The device is accurate and easy to operate.

Embodiment 2:

Fig. 5a is a schematic view showing the appearance of the ink quantitative filling device of the embodiment, Fig. 5b is a schematic exploded view of the filling device, Fig. 6a is a schematic view of the outer cylindrical member of the filling device, and Fig. 6b is a schematic top view of the inner portion of the outer cylindrical member. As shown in FIG. 5a and FIG. 6b, the ink dosing filler 2 includes: a casing 21 which is a hollow elliptical cylinder member, and two ends respectively cooperate with the cover plate 26 and the plate 27 to form a sealed space inside the casing 21; In order to simplify the structure, in order to simplify the structure, preferably, in this embodiment, the ink storage container and the cylindrical member may be separated by the arc-shaped partition 22 inside the outer casing 21, that is, respectively equivalent to storage. The ink chamber 23 and the suction chamber 24, that is, the cover plate 26 can seal the ink reservoir and the tubular member, wherein a gap 221 is formed under the partition 22, and the notch 221 cooperates with the plate 27 as shown in FIG. 6a. Forming an ink flow path connecting the two chambers, the ink storage chamber 23 is substantially a closed space except the ink flow passage; and the inner moving member moving back and forth in the cylindrical member, preferably, in this embodiment, The inner moving member is a piston rod 29 located in the suction chamber 24, and one end thereof is provided with a piston 291 which cooperates with the inner wall of the suction chamber 24, and the other end is provided with a handle 292 for the user to grasp the piston rod 29, obviously, The piston rod 29 can be based on the piston 291 The clearance of the inner wall of the suction chamber 24 cooperates to reciprocate up and down in the suction chamber 24; the functions of the components such as the ink-filling tube 25, the sealing cover and the air hole 231 are similar to those of the first embodiment, and will not be described again, but it is emphasized here that In this embodiment, the ink injecting tube 25 is in communication with the suction chamber 24, as shown in FIG. 6b; the air hole 231 is disposed on the cover plate 26 above the ink storage chamber 23; and the cover 26 is provided with a hole 261 to allow The piston rod 29 passes therethrough, and there is a gap between the hole 261 and the piston rod 29, and when the piston rod 29 is pulled upward, the air between the piston 291 and the cover plate 26 can be discharged through the slit. As shown in FIG. 6a, a one-way valve 28 is disposed on the ink passage between the suction chamber 24 and the ink storage chamber 23. The specific structure is similar to that of the first embodiment. It should be emphasized that the check valve 28 is It is used to selectively open or close the ink flow between the ink storage chamber 23 and the suction chamber 24, and it only allows ink to flow from the ink storage chamber 23 to the suction chamber 24, and prohibits it from flowing from the suction chamber 24 to the ink storage chamber. The chamber 23; as shown in Fig. 6b, the valve hole 283 and the through hole 284 of the check valve 28 are directly formed on the bottom wall of the suction chamber 24.

Fig. 7a is a cross-sectional view of the ink metering filler of the present embodiment, and Figs. 7b and 7c are schematic views of filling with the above filler, wherein Fig. 7b shows the ink quantification process, and Fig. 7c shows the ink refilling step. As shown in FIG. 7b, when the user holds the handle 292 and pulls the piston rod 29 upward in the direction indicated by the arrow C, the distance between the piston 291 and the bottom wall of the suction chamber 24 increases to form a space, which is generated in the space. Negative pressure, and a pressure difference is generated between the ink storage chamber 23 and the ink chamber 23, and the pressure difference is also increased as the space volume increases. When the pressure difference reaches a predetermined value, the check valve 28 is opened, and the ink is discharged. The ink storage chamber 23 flows into the space through the ink outlet 232; when the upper end surface of the piston 291 is in contact with the lower end surface of the cover plate 26, the piston rod 29 can no longer move. At this time, the space volume is fixed, and the ink storage chamber is fixed. The same volume of ink in 23 fills the above space, that is, the above space is the quantitative space 30. Obviously, in the above quantitative step, the limiting member is the upper end surface of the piston 291. In another angle, the stroke of the piston 291 in the suction chamber 24 is smaller than the volume of the ink in the ink storage chamber 23, or, if the ink storage chamber is The ink volume in 23 is designed to be filled N times for the cartridge to be filled, and the volume of the space 30 generated between the piston 291 in the suction chamber 24 and the bottom wall of the suction chamber 24 is the ink volume. 1/N. It should be understood by those skilled in the art that in order to help understand the technical solution, factors such as the volume of the ink storage chamber and the suction chamber in FIG. 6b are exaggerated; specifically, the volume of the ink storage chamber and the suction chamber can be adjusted according to actual needs. And set it up. At the same time, those skilled in the art should understand that the above-mentioned piston rod 29 can also form a ring shoulder to serve as a limiting member. At this time, the distance between the shoulder and the cover plate determines the amount of ink that is quantified each time. Obviously, the limiting member can be formed by forming a corresponding structure on the inner moving member, or can be determined by setting the stroke of the inner moving member in the cylindrical member, as long as the moving distance of the inner moving member in the cylindrical member can be ensured. The volume of the formed space is smaller than the volume of the ink stored in the ink storage container, and it is sufficient to form a quantitative space for quantifying the ink. In other words, it is sufficient to ensure that the volume of the quantitative space is smaller than the volume of the ink stored in the ink storage container. As shown in Fig. 7c, the ink filling tube 25 is connected to the ink container to be filled, and the piston rod 29 is pushed downward in the direction indicated by the arrow D so that the piston 291 moves downward, so that the volume of the above-mentioned quantitative space 30 is continuously reduced to Zero, the ink in the quantitative space 30 is gradually injected into the ink cartridge; finally, the ink filling tube 25 is pulled out and sealed, and the filled ink cartridge is sealed. That is, the process in which the above quantitative space gradually disappears is the process of ink filling.

This embodiment is similar to the working principle of the second embodiment, but the specific structure is different, and the quantification process occurs between the suction chamber 24 and the ink storage chamber 23, that is, the quantification process occurs in the ink storage. Between the container and the dosing unit. However, in the final analysis, the first embodiment or the second embodiment actually communicates the quantitative storage space with the ink storage container portion storing the ink via the one-way valve, except that the ink storage container in the first embodiment is used as the inner moving member. The ink cartridges act together.

It should be understood by those skilled in the art that the above-mentioned suction chamber and the ink storage chamber can also be separately manufactured and then connected together without being fixed into one body; the space above the piston in the suction chamber and the space above the liquid level of the ink storage chamber are also It can be connected via a one-way valve, and there is no need to provide air holes above the ink storage chamber, and the opening direction of the one-way valve is from the suction chamber to the ink storage chamber, so that the air discharged from the suction chamber passes through the above-mentioned one-way valve And flow to the ink storage chamber, and adjust the pressure balance between the two chambers in time.

It will be understood by those skilled in the art that the one-way valve described above may be other well-known valve technologies, such as a diaphragm valve, a ball valve, a self-closing valve, etc., as long as it can function as a selective opening and a one-way conduction.

Claims

Claim

1. An ink quantitative filler comprising:

An ink storage container for storing ink for filling;

The ink storage container and the quantitative unit are connected via a one-way valve, the quantitative unit comprises a cylindrical member, an inner moving member moving back and forth inside the cylindrical member, and the inner moving member is restricted Limiting parts for moving distance.

2. The ink metering filler of claim 1, wherein the one-way valve is disposed between the barrel and the ink reservoir.

3. The ink metering filler according to claim 2, wherein one end of the inner moving member is provided with a piston that cooperates with the cylindrical member, and the other end is provided with a handle for pulling it to move up and down along the cylindrical member. .

4. The ink metering filler of claim 3, wherein the ink metering filler further comprises a cover that seals the barrel and the ink reservoir.

5. The ink metering filler of claim 4, wherein the volume of the metering space is smaller than the volume of ink stored in the ink reservoir.

The ink metering filler according to claim 3 or 4 or 5, wherein the inner moving member is an inner hollow ink cartridge, and the ink cartridge serves as the ink storing container at the same time.

The ink metering filler according to claim 3 or 4 or 5, wherein the inner moving member is a piston rod.

8. The ink metering filler of claim 6, wherein the handle is fixedly coupled to the ink cartridge.

9. The ink metering filler according to claim 8, wherein said handle is disposed to be hollow inside, and said air hole is located in said handle On.

The ink metering filler according to claim 1 or 2 or 3 or 4 or 5, wherein the one-way valve includes a valve seat formed with a valve hole and cooperates with the valve seat to cover the The spool of the valve hole.

11. The ink metering filler according to claim 10, wherein the valve body is an umbrella-shaped valve body including a disk portion and a rod portion, and the disk portion can be based on a pressure difference between the two sides thereof. Covering or offsetting the valve bore, the stem secures the spool to the valve seat.

12. An ink filling method for injecting a predetermined amount of ink into an ink cartridge using the ink metering filler of claim 1, comprising the steps of:

The ink filling method according to claim 12, wherein the quantitative space is defined by the inner movement member, the cylindrical member, and the stopper member.

14. The ink filling method according to claim 13, wherein in the step A, the one-way valve and the air hole are both in an open state, and in the step B, the one-way valve and the air hole Both are off.