CN110936720B - Ink cartridge and printer - Google Patents
Ink cartridge and printer Download PDFInfo
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- CN110936720B CN110936720B CN201811592679.2A CN201811592679A CN110936720B CN 110936720 B CN110936720 B CN 110936720B CN 201811592679 A CN201811592679 A CN 201811592679A CN 110936720 B CN110936720 B CN 110936720B
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- valve
- ink
- imaging device
- electronic imaging
- liquid ink
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17556—Means for regulating the pressure in the cartridge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
Abstract
The invention relates to the technical field of electronic imaging, in particular to an ink box and a printer, wherein the ink box is detachably arranged on an electronic imaging device and comprises a shell which is arranged into a cavity structure and is provided with an air inlet; the liquid ink flow channel is positioned in the cavity structure and is communicated with the air inlet; the pressure control valve is arranged in the liquid ink flow channel, wherein the elastic part of the pressure control valve is arranged to deform under the action of the suction force of the electronic imaging device during working so as to open the sealing part of the pressure control valve, so that the liquid ink in the cavity structure flows out along the liquid ink flow channel, and when the electronic imaging device is not in working, the sealing part and the elastic part of the pressure control valve are both restored to the initial position along the direction parallel to the gravity, so that the liquid ink flow channel is sealed. The ink box provided by the invention has the characteristic of well balancing the internal pressure.
Description
Technical Field
The invention relates to the technical field of electronic imaging, in particular to an ink box and a printer.
Background
With the development of society and the progress of science and technology, printers have become common office appliances in life, which greatly facilitates the life of people. The ink cartridge is capable of loading ink and providing an ink source for the ink jet printer, and is an important component of the ink jet printer.
Although the ink box in the prior art has the advantages, in the prior art, the pressure control piece of the ink box can enable the interior of the ink box to generate negative pressure, but the negative pressure is generated when the ink box starts to print and is always kept until the ink is exhausted, the ink box is always in a negative pressure state, the ink of the printing head is easily sucked out, the printing head is damaged, meanwhile, the ink box is always in a negative pressure state, the internal pressure of the ink box is easily unbalanced, when the internal pressure of the ink box in various color systems is unbalanced, the color fleeing among the spray holes of the nozzle is easily caused, the printing quality is influenced, the design of the ink box is unreasonable, and the internal pressure cannot be well balanced.
Disclosure of Invention
The invention aims to provide an ink box and a printer, which are used for solving the technical problems that the ink box in the prior art is unreasonable in design and cannot well balance internal pressure.
In a first aspect, the present invention provides an ink cartridge detachably mountable to an electronic image forming apparatus, comprising:
the shell is arranged into a cavity structure and is provided with an air inlet;
the liquid ink flow channel is positioned in the cavity structure and is communicated with the air inlet;
a pressure control valve disposed in the ink flow passage,
wherein the elastic portion of the pressure control valve is configured to deform under a suction force when the electronic imaging device is in operation to open the sealing portion of the pressure control valve, so that the liquid ink in the cavity structure flows out along the liquid ink flow passage,
when the electronic imaging device does not work, the sealing part and the elastic part of the pressure control valve return to the initial positions along the direction parallel to the gravity so as to seal the liquid ink flow channel.
Further, the pressure control valve includes:
the valve seat is arranged in the liquid ink flow channel and is provided with a valve nozzle;
a resilient sealing valve disposed within the valve seat and having a sealing portion configured to have a density greater than a density of the liquid ink within the cavity structure,
the elastic part of the elastic sealing valve is arranged to deform under the action of suction force during the operation of the electronic imaging device so as to open the sealing part of the elastic sealing valve, so that the liquid ink in the cavity structure flows out along the liquid ink flow channel,
when the electronic imaging device is not in operation, the sealing part and the elastic part of the elastic sealing valve return to the initial positions along the direction parallel to the gravity to seal the valve nozzle.
Further, the resilient sealing valve comprises:
a valve body disposed within the valve seat, the valve body having a density configured to be greater than a density of the liquid ink within the cavity structure;
the return elastic piece is arranged between the valve seat and the valve body in a deformation state;
wherein when the valve body is in a closed state, the elastic force generated by the return elastic member is set to be smaller than the pressure formed on the surface of the valve body by the flowing liquid ink when the electronic imaging device works,
the buoyancy force formed on the surface of the valve body by the static liquid ink when the electronic imaging device is not in operation is larger than the buoyancy force formed on the surface of the valve body by the static liquid ink when the electronic imaging device is not in operation.
The invention has the beneficial effects that:
the invention provides an ink box which is detachably arranged on an electronic imaging device and comprises a shell, an ink flow channel and a pressure control valve, wherein the shell is arranged into a cavity structure, the ink flow channel is positioned in the cavity structure, the pressure control valve is arranged in the ink flow channel, the shell is provided with an air inlet, the ink flow channel is communicated with the air inlet, further, an elastic part of the pressure control valve is arranged to deform under the action of suction force when the electronic imaging device works so as to open a sealing part of the pressure control valve, so that the ink in the cavity structure flows out along the ink flow channel, and when the electronic imaging device does not work, the sealing part and the elastic part of the pressure control valve return to an initial position along the direction parallel to gravity so as to seal the ink flow channel. Specifically, when the electronic imaging device provided with the ink box works, liquid ink in the ink box can flow in the liquid ink flow channel due to the suction force of the electronic imaging device, and at the moment, the elastic part of the pressure control valve deforms under the action of the suction force of the electronic imaging device to open the sealing part of the pressure control valve, so that the liquid ink flows to a printing head of the electronic imaging device through the pressure control valve to perform normal printing work; when the electronic imaging device stops working, the electronic imaging device stops sucking the printing head and the ink box, at the moment, the pressure control valve returns to the initial position along the direction parallel to the gravity under the action of the elastic force of the elastic part of the pressure control valve and the combined action of the sealing part when the suction force of the electronic imaging device is lost, then the liquid ink flowing channel is sealed, the liquid ink in the ink box is prevented from flowing continuously, the pressure control valve continuously performs opening and closing actions along with the consumption of the liquid ink in the ink box according to the actions, the pressure in the ink box is balanced, and the liquid ink in the ink box is used up until the liquid ink in the ink box is exhausted. The design structure correspondingly opens and closes the sealing part and the elastic part of the pressure control valve arranged in the ink flow channel of the ink box along with the work and stop of the electronic imaging device, so that negative pressure is generated only when the electronic imaging device works in the ink box, the ink flows into the printing head, when the electronic imaging device does not work, the pressure in the ink box is kept in a state equal to the external environment through the air inlet, the design is ingenious, the structure is reasonable, the pressure in the ink box is well balanced, the printing quality is improved, meanwhile, because the sealing part and the elastic part of the pressure control valve return to the initial position along the direction parallel to the gravity when the electronic imaging device stops working, namely the sealing of the pressure control valve is realized under the combined action of the elastic part and the sealing part when the electronic imaging device does not work, therefore, the fatigue degree of the elastic part is reduced, the service life of the printing head is prolonged.
In a second aspect, the present invention provides an ink cartridge detachably mountable to an electronic image forming apparatus, comprising:
the shell is arranged into a cavity structure and is provided with an air inlet;
the liquid ink flow channel is positioned in the cavity structure and is communicated with the air inlet;
a gravity pressure control valve arranged in the liquid ink flow channel,
wherein the gravity pressure control valve is arranged to open under the action of a suction force when the electronic imaging device works so as to enable the liquid ink in the cavity structure to flow out along the liquid ink flow channel,
and when the electronic imaging device is not in operation, the electronic imaging device falls back to the initial position under the action of self gravity to seal the liquid ink flow channel.
Further, the gravity control valve includes:
the valve seat is arranged in the liquid ink flow channel and is provided with a valve nozzle;
a gravity-sealed valve disposed within the valve seat,
the density of the gravity seal valve is greater than the density of the liquid ink in the cavity structure, and the movement direction of the seal valve is parallel to the gravity direction.
Further, the caliber of the ink outlet of the ink flow channel is smaller than the dimension of the gravity seal valve in any direction.
Further, the distance of the gravity seal valve in the direction perpendicular to the direction of gravity is not greater than the inner diameter of the liquid ink flow channel.
The invention has the beneficial effects that:
the ink cartridge has the same advantages as the ink cartridge described in the first and second aspects, and thus, the description thereof is omitted.
In a third aspect, the present invention provides an ink cartridge detachably mountable to an electronic image forming apparatus, comprising:
the shell is arranged into a cavity structure and is provided with an air inlet;
the liquid ink flow channel is positioned in the cavity structure and is communicated with the air inlet;
buoy accuse pressure valve, buoy accuse pressure valve includes:
the valve seat is arranged in the liquid ink flow channel and is provided with a valve nozzle;
a sealing part configured to open and close the valve nozzle;
a float part connected with the sealing part;
a rotating shaft is arranged on the valve seat, and the joint of the sealing part and the buoy part is rotatably connected to the rotating shaft;
wherein the float pressure control valve is arranged such that, when the electronic image forming apparatus is operating, the float pressure control valve is driven to rotate integrally by the flowing ink so that the sealing portion opens the valve nozzle,
when the electronic imaging device is not in operation, the float pressure control valve is rotated in a direction opposite to that in the dynamic ink in its entirety in the static ink, so that the sealing portion seals the valve nozzle.
The invention has the beneficial effects that:
the ink cartridge has the same advantages as the ink cartridge described in the first aspect, and thus, the description thereof is omitted.
In a fourth aspect, the present invention provides an ink cartridge detachably mountable to an electronic image forming apparatus, comprising:
the shell is arranged into a cavity structure and is provided with an air inlet;
the liquid ink flow channel is positioned in the cavity structure and is communicated with the air inlet;
a buoyancy pressure control valve arranged in the liquid ink flow channel,
wherein the buoyancy pressure control valve is configured to open under a suction force when the electronic imaging device is in operation, so that the liquid ink in the cavity structure flows out along the liquid ink flow channel,
when the electronic imaging device is not in operation, the electronic imaging device returns to the initial position under the buoyancy of the static liquid ink so as to seal the liquid ink flow channel.
Further, the buoyancy pressure control valve includes:
the valve seat is arranged in the liquid ink flow channel and is provided with a valve nozzle;
a buoyant sealing valve disposed within the valve seat,
the density of the buoyancy sealing valve is smaller than that of liquid ink in the cavity structure, and the movement direction of the sealing valve is parallel to the gravity direction.
Further, the buoyancy sealed valve includes:
a buoyancy valve configured to open and close the valve nozzle;
one end of the connecting rod is connected with the buoyancy valve, and the other end of the connecting rod is connected with the valve seat in a sliding manner;
wherein the movable stroke of the buoyancy valve is set to be not more than the length of the connecting rod.
Further, the distance of the buoyancy valve in the direction perpendicular to the direction of gravity is not greater than the inner diameter of the liquid ink flow passage.
The invention has the beneficial effects that:
the ink cartridge has the same advantages as the ink cartridges described in the first, second, and third aspects, and thus, the description thereof is omitted.
In a fifth aspect, the present invention provides a printer comprising a mounting box and an ink cartridge as described in any one of the first, second, third and fourth aspects, wherein the ink cartridge is detachably mounted in the mounting box.
The invention has the beneficial effects that:
the printer has the same advantages as any one of the ink cartridges described in the first, second, third, and fourth aspects, and will not be described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an ink cartridge according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of the construction of the pressure control valve of FIG. 1;
FIG. 3 is a schematic diagram of another configuration of the pressure control valve of FIG. 1;
fig. 4 is a schematic structural view of the ink cartridge according to the second embodiment of the present invention when the pressure control valve is closed;
FIG. 5 is a schematic structural view of an ink cartridge according to a second embodiment of the present invention, when a pressure control valve is opened;
fig. 6 is a schematic structural view of the ink cartridge according to the third embodiment of the present invention when the pressure control valve is closed;
fig. 7 is a schematic structural view of the ink cartridge according to the third embodiment of the present invention when the pressure control valve is opened.
Fig. 8 is a schematic structural view of the ink cartridge according to the fourth embodiment of the present invention when the pressure control valve is closed;
FIG. 9 is a schematic structural view of an ink cartridge according to a fourth embodiment of the present invention, when a pressure control valve is opened;
FIG. 10 is a schematic illustration of the buoyancy valve of FIGS. 8 and 9;
icon:
1-a shell;
2-air inlet holes;
3-a liquid ink flow channel;
31-a liquid inlet channel;
32-a liquid outlet channel;
33-ink outlet;
4-a pressure control valve;
41-valve seat;
42-a resilient sealing valve;
421-a valve body;
422-return elastic element;
5-a buoy pressure control valve;
51-a valve seat;
52-a seal;
53-a buoy portion;
6-gravity pressure control valve;
61-valve seat;
62-a gravity seal valve;
7-a buoyancy pressure control valve;
71-valve seat;
72-a buoyancy seal valve;
721-a buoyancy valve;
722-a connecting rod;
8-rotating shaft.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
The electronic image forming apparatus may be an image forming apparatus such as a printer, a copier, etc., but is not limited to the above, wherein the printer is taken as an example to be specifically described, the printer includes a mounting box and an ink cartridge detachably mounted to the mounting box, and the ink cartridge mainly supplies ink to the printer to realize a normal printing operation of the printer. As shown in fig. 1, fig. 2 and fig. 3, the present embodiment provides an ink cartridge, which is detachably mounted on an electronic imaging device, and includes a housing 1 configured as a cavity structure, an ink flow channel 3 located in the cavity structure, and a pressure control valve 4 disposed in the ink flow channel 3, wherein the housing 1 is provided with an air inlet 2, the ink flow channel 3 is communicated with the air inlet 2, and further, an elastic portion of the pressure control valve 4 is configured to deform under a suction force when the electronic imaging device is in operation to open a sealing portion of the pressure control valve 4, so that the ink in the cavity structure flows out along the ink flow channel 3, and when the electronic imaging device is not in operation, the sealing portion and the elastic portion of the pressure control valve 4 both return to an initial position in a direction parallel to gravity, so as to seal the ink flow channel 3. Specifically, when the electronic imaging device provided with the ink box works, due to the suction force of the electronic imaging device, the liquid ink in the ink box can flow in the liquid ink flow channel 3, and at the moment, the elastic part of the pressure control valve 4 deforms under the suction force of the electronic imaging device to open the sealing part of the pressure control valve 4, so that the liquid ink flows to the printing head of the electronic imaging device through the pressure control valve 4 to perform normal printing work; when the electronic imaging device stops working, the electronic imaging device stops sucking the printing head and the ink box, at the moment, the pressure control valve 4 returns to the initial position along the direction parallel to the gravity under the action of the elastic force of the elastic part of the pressure control valve 4 and the combined action of the sealing part when the suction force of the electronic imaging device is lost, and further the liquid ink flowing channel 3 is sealed, the liquid ink in the ink box is prevented from continuously flowing, the pressure control valve 4 consumes along with the liquid ink in the ink box according to the actions, the pressure control valve 4 continuously performs opening and closing actions, so that the pressure in the ink box is ensured to be balanced, and the liquid ink in the ink box is exhausted until the liquid ink in the ink box is exhausted. The design structure correspondingly opens and closes the sealing part and the elastic part of the pressure control valve 4 arranged in the ink flow channel 3 of the ink box along with the work and stop of the electronic imaging device, so that negative pressure is generated in the ink box only when the electronic imaging device works, the ink flows into the printing head, when the electronic imaging device does not work, the pressure in the ink box is kept in a state equal to the external environment through the air inlet 2, the design is ingenious, the structure is reasonable, the pressure in the ink box is well balanced, the printing quality is improved, meanwhile, when the electronic imaging device stops working, the sealing part and the elastic part of the pressure control valve 4 are both returned to the initial position along the direction parallel to the gravity, namely, when the electronic imaging device does not work, the closing of the pressure control valve 4 is realized through the combined action of the elastic part and the sealing part, therefore, the fatigue degree of the elastic part is reduced, the service life of the printing head is prolonged.
As shown in fig. 4, 5, 7 and 10, the ink flow channel 3 may be a straight channel, and in this embodiment, in order to enable the ink in the ink cartridge to flow into the print head gently and smoothly along the ink flow channel 3, specifically, the ink flow channel 3 may be configured in a winding structure, that is, include an inlet channel 31 and an outlet channel 32 communicating with the inlet channel 31.
As shown in fig. 1, further, the pressure control valve 4 includes a valve seat 41 provided in the liquid ink flow passage 3 and an elastic sealing valve 42 provided in the valve seat 41, wherein a density of a sealing portion of the elastic sealing valve 42 is configured to be greater than a density of the liquid ink in the cavity structure, the valve seat 41 is provided with a valve mouth, and further, an elastic portion of the elastic sealing valve 42 is configured to be deformed by a suction force when the electrophotographic apparatus is in operation to open the sealing portion of the elastic sealing valve 42 so that the liquid ink in the cavity structure flows out along the valve mouth, and when the electrophotographic apparatus is not in operation, both the sealing portion and the elastic portion of the elastic sealing valve 42 are returned to an initial position in a direction parallel to gravity to seal the valve mouth. When the electronic imaging device provided with the ink box works, the liquid ink in the ink box can flow in the liquid ink flow channel 3 due to the suction force of the electronic imaging device, and at the moment, the elastic part of the elastic sealing valve 42 deforms under the suction force of the electronic imaging device to open the sealing part of the elastic sealing valve, so that the liquid ink flows to the printing head of the electronic imaging device through the elastic sealing valve 42 to perform normal printing work; when the electronic imaging device stops working, the electronic imaging device stops sucking the printing head and the ink box, at this time, the elastic part and the sealing part of the elastic sealing valve 42 move to the initial position along the direction parallel to the gravity and close the valve nozzle under the action of the suction force of the electronic imaging device, and further seal the liquid ink flow channel 3, so that the liquid ink in the ink box is prevented from continuously flowing, namely the electronic imaging device is closed through the combined action of the elastic part and the sealing part when not working, therefore, the fatigue degree of the elastic part of the elastic sealing valve 42 is reduced, and the service life of the printing head is prolonged.
The valve seat 41 and the liquid ink flow channel 3 may be connected together by bonding, clamping, or the like, and specifically, in this embodiment, the specific connection manner of the valve seat 41 and the liquid ink flow channel 3 is not limited.
As shown in fig. 2 and 3, in particular, the elastic sealing valve 42 includes a valve body 421 disposed in the valve seat 41 and a return elastic member 422 disposed between the valve seat 41 and the valve body 421 in a deformed state, wherein the density of the valve body 421 is configured to be greater than the density of the liquid ink in the cavity structure, and when the valve body 421 is in the closed state, the elastic force generated by the return elastic member 422 is set to be smaller than the pressure of the flowing liquid ink on the surface of the valve body 421 when the electronic imaging device is operated and greater than the buoyancy of the static liquid ink on the surface of the valve body 421 when the electronic imaging device is not operated. When the elastic sealing valve 42 is in a sealing state, since the elastic force generated when the return elastic member 422 seals is set to be smaller than the pressure formed on the surface of the valve body 421 by the flowing ink when the electronic imaging device is working, the valve body 421 can be driven to move away from the valve nozzle by the suction force generated when the electronic imaging device is working, so that the valve body 421 opens the valve nozzle under the suction force of the electronic imaging device; when the electronic imaging device stops working, the liquid ink is changed from a flowing state to a static state, at this time, the force applied to the surface of the valve body 421 is mainly the buoyancy generated by the static liquid ink, and the elastic force generated when the return elastic member 422 seals is set to be larger than the buoyancy formed by the static liquid ink on the surface of the valve body 421 when the electronic imaging device does not work, so that the valve body 421 moves towards the direction close to the valve nozzle under the action of the elastic force generated by the return elastic member 422, and the valve nozzle is closed.
Because the elastic force generated by the return elastic member 422 is greater than the buoyancy force generated by the static ink to the valve 421, the density of the valve 421 may be greater than the density of the ink in the ink cartridge, or may be less than the density of the ink in the ink cartridge. Specifically, the return elastic member 422 may be a torsion spring, a cylindrical spring, or the like.
Specifically, the shape of the valve body 421 may be a variety of structures such as a sphere and an umbrella, and in this embodiment, the specific shape of the valve body 421 is not limited.
Example two
In this embodiment, another ink cartridge is provided, which is similar to the ink cartridges of the first and second embodiments, and the significant difference includes the gravity pressure control valve 6. Therefore, descriptions of similar components are not repeated, and the following description mainly focuses on the gravity control valve 6. The gravity pressure control valve 6 is arranged in the liquid ink flow channel 3, wherein the gravity pressure control valve 6 is arranged to be opened under the action of suction force when the electronic imaging device works, so that liquid ink in the cavity structure flows out along the liquid ink flow channel 3, and falls back to an initial position under the action of self gravity when the electronic imaging device does not work, so as to seal the liquid ink flow channel 3. Specifically, the gravity pressure control valve 6 includes a valve seat 61 disposed in the liquid ink flow channel 3 and a gravity seal valve 62 disposed in the valve seat 61, the valve seat 61 is provided with a valve nozzle, further, to meet design requirements, the density of the gravity seal valve 62 is greater than the density of the liquid ink in the cavity structure, and the movement direction of the gravity seal valve 62 is parallel to the gravity direction, when the electronic imaging device works, due to the suction force of the electronic imaging device, at this time, the gravity seal valve 62 is opened under the suction force of the electronic imaging device, so that the liquid ink flows to the print head of the electronic imaging device through the gravity seal valve 62 to perform normal printing work; when the electronic imaging device stops working, the electronic imaging device stops sucking the printing head and the ink box, at this time, the gravity seal valve 62 loses the action of the sucking force of the electronic imaging device, and because the density of the gravity seal valve 62 is greater than the density of the liquid ink in the cavity structure, the gravity seal valve 62 closes the valve nozzle under the action of self gravity, and further seals the liquid ink flow channel 3.
In the present embodiment, in order to ensure that the gravity sealing valve 62 can open the valve nozzle when the electronic imaging device is operating, the gravity of the gravity sealing valve 62 itself must be smaller than the suction force generated when the electronic imaging device is operating, which is the basic design knowledge in the art, and therefore, the relationship between the gravity of the gravity sealing valve 62 and the suction force generated when the electronic imaging device is operating is not specifically limited.
With reference to fig. 4 and fig. 5, further, the aperture of the ink outlet 33 of the ink flow channel 3 may be larger than the size of the gravity sealing valve 62, in this embodiment, in order to prevent the gravity sealing valve 62 from flowing out of the ink flow channel 3 along with the flowing ink and causing the electronic imaging device to fail to return to the initial position when the electronic imaging device stops operating, specifically, the aperture of the ink outlet 33 of the ink flow channel 3 is smaller than the size of the gravity sealing valve 62 in any direction, wherein the ink outlet 33 is the ink outlet 33 of the liquid inlet channel 31 or the ink inlet of the liquid outlet channel 32.
In this embodiment, in order to ensure that the gravity sealing valve 62 can return to the initial position when the electronic imaging device stops operating, specifically, when the density of the gravity sealing valve 62 is greater than the density of the liquid ink in the cavity structure, a connecting rod 722 may also be disposed on the gravity sealing valve 62, and further, the moving stroke of the gravity sealing valve 62 is set to be no greater than the length of the connecting rod 722.
In order to further ensure that the movement locus of the gravity sealing valve 62 during the opening and closing processes is not shifted, in the present embodiment, the distance of the gravity sealing valve 62 in the direction perpendicular to the direction of gravity is not greater than the inner diameter of the liquid ink flow channel 3, and preferably, the distance of the gravity sealing valve 62 in the direction perpendicular to the direction of gravity is equal to the inner diameter of the liquid ink flow channel 3.
Specifically, the shape of the gravity seal valve 62 may be a variety of structures such as a sphere and an umbrella, and in this embodiment, the specific shape of the valve body 421 is not limited.
EXAMPLE III
As shown in fig. 4 and 5, another ink cartridge is provided in this embodiment, which is similar to the ink cartridge in the first embodiment described above, with a notable difference including a float pressure control valve 5. Therefore, descriptions of similar components are not repeated, and the following description is mainly focused on the float pressure control valve 5. Specifically, the float pressure control valve 5 includes a valve seat 51 disposed in the liquid ink flow passage 3, a float portion 53 configured to open and close a valve nozzle sealing portion 52 and be connected to the sealing portion 52, wherein the valve seat 51 is provided with a valve nozzle, a rotating shaft 8 is disposed on the valve seat 51, a joint of the sealing portion 52 and the float portion 53 is rotatably connected to the rotating shaft 8, further, the float pressure control valve 5 is configured to drive the float pressure control valve 5 to integrally rotate when the electronic imaging device is in operation, so that the sealing portion 52 opens the valve nozzle, and when the electronic imaging device is not in operation, the float pressure control valve 5 integrally rotates in the static liquid ink in a direction opposite to that in the dynamic liquid ink, so that the sealing portion 52 seals the valve nozzle. In order to meet the design requirement of the sealing valve, the float part 53 is closer to the center of the ground than the sealing part 52 in the natural state. During the actual operation of the sealing valve, the gravity of the sealing part 52 is designed to be G1, the buoyancy of the sealing part 52 in the static ink is F1, the gravity of the float part 53 is designed to be G2, and the buoyancy of the sealing part 52 in the static ink is F2, wherein G2-F2 is greater than G1-F1, so that when the electronic imaging device does not operate, the float part 53 can drive the sealing part 52 to be close to the valve nozzle to seal the valve nozzle and prevent the flow of the liquid ink; when the electronic imaging device works, in order to ensure that the sealing valve can open the valve nozzle under the action of flowing liquid ink, the closing value F of the sealing valve is set to be (G2-F2) - (G1-F1), wherein the suction force generated when the electronic imaging device works is F3, and F3 is greater than F, so that continuous ink supply is realized, and normal printing is ensured.
In this embodiment, when the electronic imaging device is operated, the suction force of the electronic imaging device is larger than the closing value of the sealing valve, which is a common general design knowledge in the art, and therefore, the closing value of the sealing valve and the suction force generated when the electronic imaging device is operated are not specifically described.
Example four
In this embodiment, another ink cartridge is provided, which is similar to the ink cartridges of the first, second and third embodiments, with the notable difference including the buoyancy pressure control valve 7. Therefore, descriptions of similar components are not repeated, and the following description mainly focuses on the buoyancy pressure control valve 7. The buoyancy pressure control valve 7 is arranged in the liquid ink flow channel 3, wherein the buoyancy pressure control valve 7 is arranged to be opened under the action of a suction force when the electronic imaging device works so that the liquid ink in the cavity structure flows out along the liquid ink flow channel 3, and returns to an initial position under the action of buoyancy of static liquid ink when the electronic imaging device does not work so as to seal the liquid ink flow channel 3. Specifically, the buoyancy pressure control valve 7 includes a valve seat 71 disposed in the liquid ink flow channel 3 and a buoyancy sealing valve 72 disposed in the valve seat 71, the valve seat 71 is provided with a valve nozzle, further, to meet the design requirement, the density of the buoyancy sealing valve 72 is smaller than the density of the liquid ink in the cavity structure, and the moving direction of the sealing valve is parallel to the gravity direction. When the electronic imaging device works, due to the suction force of the electronic imaging device, at this time, the buoyancy sealing valve 72 moves away from the valve nozzle under the suction force of the electronic imaging device to open the valve nozzle, so that liquid ink flows to the printing head of the electronic imaging device through the buoyancy sealing valve 72 to perform normal printing work; when the electronic imaging device stops working, the electronic imaging device stops sucking the printing head and the ink box, at this time, when the suction force of the electronic imaging device is lost, the buoyancy sealing valve 72 moves towards the direction close to the valve nozzle under the buoyancy effect of the static liquid ink on the buoyancy sealing valve 72 because the density of the buoyancy sealing valve 72 is smaller than the density of the liquid ink in the cavity structure, so as to close the valve nozzle, and further seal the liquid ink flow channel 3.
However, in this embodiment, in order to ensure that the buoyancy sealing valve 72 can open the valve nozzle when the electronic imaging device is operating, the buoyancy of the buoyancy sealing valve 72 itself must be smaller than the suction force generated when the electronic imaging device is operating, which is the basic design knowledge in the art, and therefore, the relationship between the buoyancy of the buoyancy sealing valve 72 in the static ink and the suction force generated when the electronic imaging device is operating is not particularly limited.
As shown in fig. 8, specifically, in the present embodiment, the buoyancy sealing valve 72 includes a link 722 and a buoyancy valve 721 configured to open and close the valve nozzle, wherein one end of the link 722 is connected to the buoyancy valve 721, the other end of the link 722 is slidably connected to the valve seat 71, and the movable stroke of the buoyancy valve 721 is set to be not greater than the length of the link 722, and this structural design is that, since the movable stroke of the buoyancy valve 721 is not greater than the length of the link 722, after the electronic imaging device stops working, the buoyancy valve 721 can return to the initial position under the guiding action of the link 722 to seal the valve nozzle, and preferably, the movable stroke of the buoyancy valve 721 is set to be less than the length of the link 722.
With continued reference to fig. 6 and 7, in order to further ensure that the moving trajectory of the sealing valve during the opening and closing processes is not shifted, in the present embodiment, the distance of the buoyancy valve 721 in the direction perpendicular to the direction of gravity is not greater than the inner diameter of the liquid ink flow channel 3, and preferably, the distance of the buoyancy valve 721 in the direction perpendicular to the direction of gravity is equal to the inner diameter of the liquid ink flow channel 3.
As shown in fig. 8, the shape of the buoyancy valve 721 may be a spherical shape, an umbrella shape, or other structures, and in this embodiment, the specific shape of the valve body 421 is not limited. When the buoyancy valve 721 is umbrella-shaped, the bottom of the umbrella-shaped buoyancy valve 721 may be processed into a cavity to ensure the buoyancy requirement of the buoyancy valve 721.
EXAMPLE five
This embodiment provides a printer, including mounting box and the ink horn described in any one of the above embodiments, the ink horn is detachably mounted in the mounting box.
The printer has the same advantages as the ink cartridge in any of the above embodiments, and will not be described herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. An ink cartridge detachably mountable to an electronic image forming apparatus, comprising:
the air conditioner comprises a shell (1) which is arranged into a cavity structure, wherein the shell (1) is provided with an air inlet (2);
the liquid ink flow channel (3) is positioned in the cavity structure, and the liquid ink flow channel (3) is communicated with the air inlet hole (2);
a pressure control valve (4) disposed in the ink flow passage (3),
the elastic part of the pressure control valve (4) is arranged to deform under the action of suction force when the electronic imaging device works so as to open the sealing part of the pressure control valve (4), so that liquid ink in the cavity structure flows out along the liquid ink flow channel (3), and when the electronic imaging device does not work, the sealing part and the elastic part of the pressure control valve (4) both return to an initial position along a direction parallel to gravity so as to seal the liquid ink flow channel (3);
the liquid ink flowing channel (3) comprises a liquid inlet channel (31) and a liquid outlet channel (32), the liquid inlet channel (31) is provided with an ink inlet and an ink outlet (33), the liquid inlet channel (31) is communicated with the liquid outlet channel (32) through the ink outlet (33), and the height of the ink outlet (33) is higher than that of the ink inlet;
the pressure control valve (4) comprises:
a valve seat (41) provided in the liquid ink flow passage (3), the valve seat (41) being provided with a valve nozzle;
a resilient sealing valve (42) disposed within the valve seat (41), and a density of a sealing portion of the resilient sealing valve (42) is configured to be greater than a density of the liquid ink within the cavity structure,
the elastic part of the elastic sealing valve (42) is arranged to deform under the action of suction force when the electronic imaging device works so as to open the sealing part of the elastic sealing valve (42) to enable the liquid ink in the cavity structure to flow out along the liquid ink flow channel (3),
when the electronic imaging device is not in operation, the sealing part and the elastic part of the elastic sealing valve (42) return to the initial position along the direction parallel to the gravity to seal the valve nozzle.
2. The cartridge according to claim 1, characterized in that the elastic sealing valve (42) comprises:
a valve body (421) disposed in the valve seat (41), and a density of the valve body (421) is configured to be greater than a density of the liquid ink in the cavity structure;
the return elastic piece (422) is arranged between the valve seat (41) and the valve body (421) in a deformation state;
wherein when the valve body (421) is in a closed state, the elastic force generated by the return elastic member (422) is set to be smaller than the pressure formed on the surface of the valve body (421) by the flowing liquid ink when the electronic imaging device works,
the buoyancy force formed on the surface of the valve body (421) by static liquid ink when the electronic imaging device is not in operation is larger than the buoyancy force formed on the surface of the valve body (421).
3. A printer comprising a mounting box and the ink cartridge of any one of claims 1-2, the ink cartridge being mounted in the mounting box.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018111095836 | 2018-09-21 | ||
| CN201811109583 | 2018-09-21 |
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| CN110936720A CN110936720A (en) | 2020-03-31 |
| CN110936720B true CN110936720B (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592679.2A Active CN110936720B (en) | 2018-09-21 | 2018-12-25 | Ink cartridge and printer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112874166B (en) * | 2020-12-24 | 2022-03-01 | 浙江师范大学行知学院 | Printer with inquiry type ink distributing structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08174860A (en) * | 1994-10-26 | 1996-07-09 | Seiko Epson Corp | Ink cartridge for ink jet printer |
| CN1631676A (en) * | 2003-12-22 | 2005-06-29 | 珠海天威飞马打印耗材有限公司 | Cartridge of ink-jet printer |
| CN2910576Y (en) * | 2006-04-28 | 2007-06-13 | 珠海天威技术开发有限公司 | Ink cartridge of ink-jet printer and its one-way valve |
| CN201049541Y (en) * | 2007-06-08 | 2008-04-23 | 聂瑞权 | Ink-jet printer cartridge |
| CN201105537Y (en) * | 2007-10-16 | 2008-08-27 | 珠海天威技术开发有限公司 | Print cartridge |
| CN201291640Y (en) * | 2008-10-30 | 2009-08-19 | 聂瑞权 | Ink ribbon cartridge for ink-jet typewriter |
| CN101693424B (en) * | 2009-10-30 | 2012-07-18 | 珠海纳思达电子科技有限公司 | Ink box of ink jet printer |
| CN201559362U (en) * | 2009-11-26 | 2010-08-25 | 珠海纳思达电子科技有限公司 | Ink box for ink jet printer |
| CN202271661U (en) * | 2011-06-28 | 2012-06-13 | 珠海纳思达企业管理有限公司 | Print cartridge used for ink jet printer |
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