CN217863346U

CN217863346U - Ink box

Info

Publication number: CN217863346U
Application number: CN202220511258.8U
Authority: CN
Inventors: 黄喜龙; 徐长江; 毕庆功
Original assignee: Topjet Technology Co ltd
Current assignee: Topjet Technology Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-11-22
Anticipated expiration: 2032-03-07

Abstract

The ink box is detachably mounted to the ink-jet imaging equipment and comprises a shell, an ink outlet device arranged on the shell, the shell comprises an ink cavity capable of storing ink, the ink outlet device comprises an ink outlet cavity communicated with the ink cavity, an ink outlet positioned at the end part of the ink outlet cavity, a piston and an elastic part, the piston is mounted in the ink outlet cavity and is forced to push towards the ink outlet by the elastic part, the diameter of the piston is larger than or equal to the inner diameter of the ink outlet cavity, the ink outlet device is provided with a first through hole and a second through hole which are communicated with each other, the first through hole is also communicated with the ink cavity, the second through hole is selectively communicated with the ink outlet, the piston can move between a first position and a second position, when the first position is set, the piston is abutted against the ink outlet under the elastic action of the elastic part, the second through hole is not communicated with the ink outlet, when the second position is set, the piston moves between the first through hole and the second through hole, the second through hole is communicated with the ink outlet, the diameter of the piston is increased, the sealing performance of the ink box can be improved, and ink leakage during transportation can be avoided.

Description

Ink box

Technical Field

The utility model relates to an inkjet formation of image field especially relates to an ink horn that detachably installed in inkjet imaging device.

Background

There is an ink cartridge for supplying ink to an inkjet image forming apparatus (hereinafter referred to as "apparatus"), the ink cartridge being detachably mounted to the apparatus, the ink cartridge including an ink chamber for storing ink, an ink outlet chamber, an ink outlet port at an end of the ink outlet chamber, a piston mounted inside a cavity of the ink outlet chamber, and an elastic member for applying elastic force to the piston, the ink being supplied from the ink chamber to the apparatus through the ink outlet port via the ink outlet chamber, and the sealing plug being urged to the ink outlet port by the elastic force of the elastic member, thereby maintaining the ink outlet port in a sealed state.

After the ink cartridge is mounted to the equipment, the ink sucking needle in the equipment applies a force opposite to the mounting direction to the sealing plug, and the ink cartridge may be withdrawn from the equipment when the elastic force of the elastic member is too large because the ink cartridge is kept stable by the friction force between itself and the equipment. Therefore, in order to prevent the ink cartridge from being ejected, there is a technique of reducing the elastic force of an elastic member in the ink cartridge to weaken the force of ejecting the ink cartridge from the apparatus.

SUMMERY OF THE UTILITY MODEL

The elastic force of the elastic piece is reduced in the prior art, so that the ink box cannot be withdrawn after being installed on the equipment, but after the elastic force of the elastic piece is reduced, the piston cannot be tightly combined with the ink outlet, and ink can leak from a gap between the piston and the ink outlet to cause environmental pollution under the condition of shaking in the transportation process.

The utility model provides an ink box to solve the piston and can't combine closely and produce the technical problem that the ink leaked with the ink outlet, resources are saved, environmental protection can also further keep the stability of ink box installation to equipment after. The specific scheme is as follows:

the ink box is detachably mounted to the ink-jet imaging equipment and comprises a shell and an ink outlet device arranged on the shell, wherein the shell comprises an ink cavity capable of storing ink, the ink outlet device comprises an ink outlet cavity communicated with the ink cavity, an ink outlet positioned at the end part of the ink outlet cavity, a piston and an elastic member, the piston is mounted in the ink outlet cavity, and the piston is forced to push towards the ink outlet by the elastic member;

the diameter of the piston is larger than or equal to the inner diameter of the ink outlet cavity;

the ink outlet device is provided with a first through hole and a second through hole which are mutually communicated, the first through hole is also communicated with the ink cavity, and the second through hole is selectively communicated with the ink outlet;

the piston can move between a first position and a second position, when the piston is at the first position, the piston is abutted to the ink outlet under the action of the elastic force of the elastic piece, the second through hole is not communicated with the ink outlet, and when the piston is at the second position, the piston moves to a position between the first through hole and the second through hole, and the second through hole is communicated with the ink outlet.

The ink outlet device is provided with a transfer cavity, the first through hole and the second through hole are communicated through the transfer cavity, and the transfer cavity is arranged outside the ink outlet cavity.

The first through hole and the second through hole are arranged at intervals along the side wall of the ink outlet cavity, and the piston is contacted with the side wall of the ink outlet cavity between the first through hole and the second through hole in the second position.

The cross section of the first through hole is larger than that of the second through hole.

The ink box further comprises a limiting device, and the limiting device is used for being abutted to a limiting rod in the ink-jet imaging equipment.

The limiting device comprises a base and a fixing piece arranged on the base, wherein the base is provided with an accommodating cavity and a through hole, and the through hole is provided with a central line (L) parallel to the vertical direction.

The fixing member is made of a material having a rough surface.

The fixing member is installed in the receiving cavity, and includes a contact surface and an installation portion separated from each other, and a waist portion of the installation portion is farther from the center line (L) than both ends are.

The contact surface is used for butting with the limiting rod, and the mounting part is clamped in the through hole.

As described above, the ink cartridge according to the present invention can improve the sealing performance of the ink cartridge, so that the ink cartridge can maintain a sealed state during transportation, and thus, the problem of ink leakage is not caused, resources are saved, the environment is protected, and it is also possible to ensure that ink can be smoothly supplied to the apparatus. Further, the stability of the ink cartridge after being mounted to the apparatus can be further maintained.

Drawings

Fig. 1 is a perspective view of an ink cartridge according to an embodiment of the present invention.

Fig. 2 is a partially exploded view of an ink cartridge according to an embodiment of the present invention.

Fig. 3 is a schematic view of a part of components of an ink discharging device according to an embodiment of the present invention.

Fig. 4 is a schematic view of a piston according to an embodiment of the present invention.

Fig. 5 is a partial cross-sectional view of the ink discharging device according to the first embodiment of the present invention, which is sectioned along a plane perpendicular to the left-right direction and passing through the center line of the ink inlet, after the ink discharging device has hidden parts.

Fig. 6A is a partial cross-sectional view of the piston according to the first embodiment of the present invention, taken along a plane perpendicular to the up-down direction and passing through the center line of the ink outlet, in the first position.

Fig. 6B is a partial sectional view of the piston according to the first embodiment of the present invention, taken along a plane perpendicular to the up-down direction and passing through the center line of the ink outlet, in the second position.

Fig. 7 is a schematic view of a limiting device according to a second embodiment of the present invention.

Detailed Description

[ example one ]

Fig. 1 is a perspective view of an ink cartridge according to a first embodiment of the present invention, and fig. 2 is an exploded view of a part of the ink cartridge according to the first embodiment of the present invention.

For convenience of description, the length direction of the ink cartridge 100 is the front-back direction, the width direction of the ink cartridge 100 is the left-right direction, the height direction of the ink cartridge 100 is the up-down direction, and the ink cartridge 100 is mounted forward and dismounted backward, based on the state of the ink cartridge 100 when mounted.

As shown in fig. 1 and 2, the ink cartridge 100 includes a first casing 1 and a second casing 2 coupled to each other, the first casing 1 has a larger thickness in the left-right direction than the second casing 2, the first casing 1 is provided with an ink chamber 14 for containing ink, and the second casing 2 can be engaged with the first casing 1, and is easy to operate and has a high degree of tightness. The upper surface of the first housing 1 is provided with a rotatable chip holder 12, a support member 11 for rotating the chip holder 12, the support member 11 is located in front of the chip holder 12 in a front-rear direction, the support member 11 is configured to be rotatable/slidable, and the chip holder 12 is provided with a chip (not shown) thereon for contacting with a contact pin in the apparatus to enable the apparatus to read information related to the ink cartridge 100.

The ink cartridge 100 is further provided with a handle 13, and the handle 13 is located at a rear end of the ink cartridge 100 in the front-rear direction, for example, in the up-down direction, extending from the upper surface of the first casing 1 in a direction away from the first casing 1, for attachment and detachment of the ink cartridge 100.

The ink cartridge 100 further includes an ink discharging device 3, and the ink discharging device 3 is disposed below the first casing 1 at the front end of the ink cartridge 100 in the front-rear direction. The ink outlet device 3 includes an ink outlet chamber 31 communicated with the ink chamber 14, and an ink outlet 32 located at an end of the ink outlet chamber 31, the ink outlet chamber 31 has a center line C parallel to the front-rear direction, a communication port 15 is provided at a connection of the first housing 1 and the ink outlet chamber 31, the communication port 15 communicates the ink chamber 14 and the ink outlet chamber 31, and ink flows from the ink chamber 14 into the ink outlet chamber 31 through the communication port 15 and is supplied to the apparatus through the ink outlet 32.

The ink cartridge 100 is further provided with an air vent (not shown) capable of communicating the atmosphere with the inside of the ink cartridge 100 to keep the pressure inside the ink cartridge 100 balanced when an ink suction needle in the apparatus sucks the ink after the ink cartridge 100 is mounted to the apparatus.

Fig. 3 is a partial part schematic diagram of the ink discharging device according to the first embodiment of the present invention, fig. 4 is a piston schematic diagram according to the first embodiment of the present invention, and fig. 5 is a partial cross-sectional view of the ink discharging device according to the first embodiment of the present invention, which is sectioned along a plane perpendicular to the left and right directions and passing through the central line of the ink port, after the partial part is hidden.

As shown in fig. 3, 4, and 5, the ink discharging device 3 further includes a sealing plug 33 installed at the ink outlet 32, a piston 34 installed inside the cavity of the ink discharging chamber 31, and an elastic member 35, where the piston 34 includes a main body 341 and a contact portion 342 extending along a circumference of the main body toward a direction away from the center line C, the contact portion 342 is used to cooperate with an inner wall of the ink discharging chamber 31, the elastic member 35 is used to urge the piston 34 to move toward the ink outlet 32, one end of the elastic member 35 abuts against the main body 341 of the piston 34, and the other end abuts against the inner wall of the ink discharging chamber 31, optionally, a step 311 is provided inside the ink discharging chamber 31, and the other end of the elastic member 35 may also abut against the step 311.

The utility model discloses design the diameter D of contact portion 342 for the internal diameter D that is more than or equal to out the china ink chamber 31, make contact portion 342 more inseparable with the cooperation of play china ink chamber 31, do not have the clearance, can not produce the condition of leaking the china ink because of rocking in the transportation, can further strengthen out the leakproofness of china ink device 3.

Because the contact portion 342 is closely matched with the ink outlet cavity 31, the ink in the ink outlet cavity 31 cannot flow out through the ink outlet 32, therefore the utility model discloses set up the first through-hole 37 and the second through-hole 38 that run through the inside and outside of ink outlet cavity 31 on the cavity of ink outlet cavity 31, first through-hole 37 and second through-hole 38 communicate with each other, first through-hole 37 communicates with ink cavity 14 for making the ink flow in, second through-hole 38 optionally communicates with ink outlet 32 for making the ink flow out, preferably, the cross-section of first through-hole 37 is greater than the cross-section of second through-hole, the cross-section of first through-hole 37 is great can increase the ink volume when the ink flows in, makes the ink pass through first through-hole 37 fast, and the cross-section of second through-hole 38 is less than first through-hole 37 then can make the ink reduce the ink volume when flowing out, reduce the ink through speed, thereby make the ink smoothly and stably supply to equipment.

In the left-right direction, a boss 36 (as shown in fig. 2 and 6A) extends from the outer surface of the ink outlet chamber 31 in a direction away from the ink outlet chamber 31, the first through hole 37 and the second through hole 38 are within the range of the boss 36, the end surface 362 of the boss 36 is farther from the center line C than the inner wall of the ink outlet chamber 31 in the left-right direction, the boss 36 and the outer surface of the ink outlet chamber 31 form a relay chamber 361, and the end surface 362 of the boss 36 is sealed by a sealing film (not shown), so that a specific path S (as shown in fig. 6A and 6B) is formed in which ink flows from the first through hole 37 into the relay chamber 361 and then flows from the second through hole 38, and the ink can be smoothly supplied to the apparatus with the contact portion 342 tightly fitted to the ink outlet chamber 31.

As shown in fig. 6A, before the ink cartridge 100 is mounted to the apparatus, the piston 34 abuts against the sealing plug 33 by the elastic force of the elastic member 35, so that the ink outlet 32 is kept in a sealed state, and the contact portion 342 of the piston 34 is located in front of the second through hole 38 and close to the first position of the ink outlet 32, at which time the second through hole 38 is not communicated with the ink outlet 32.

As shown in fig. 6B, when the ink cartridge 100 is mounted to the apparatus, the ink suction needle in the apparatus abuts the piston 34 and applies a rearward force F to the piston 34, the piston 34 moves from the first position to the second position, the contact portion 342 of the piston 34 moves rearward from the front of the second through hole 38 to between the first through hole 37 and the second through hole 38 and contacts the side wall of the ink outlet chamber 31 between the first through hole 37 and the second through hole 38, and the elastic member 35 is compressed. At this time, the ink discharge chamber 31 is partitioned by the piston 34, the second through hole 38 communicates with the ink discharge port 32, and ink flows from the rear half of the ink discharge chamber 31 to the front half of the ink discharge chamber 31 along the specific path S and is supplied from the ink discharge port 32 to the apparatus.

The diameter D of the contact portion 342 is larger than or equal to the inner diameter D of the ink outlet cavity 31, so that the contact portion 342 is tightly matched with the ink outlet cavity 31, the elastic force of the elastic piece 35 is small, the piston 34 cannot be forced to tightly seal the ink outlet 32, the sealing performance of the ink outlet device 3 can be enhanced, no matter shaking is generated in the transportation process, or the ink box 100 falls carelessly, ink cannot leak, and when ink is injected, ink dripping and ink leakage cannot be caused.

The first through-hole 37 and the second through-hole 38 communicate through a relay chamber 361, and the relay chamber 361 is sealed by a sealing film through which the passage of ink through the specific path S can be observed, thereby testing the effect of ink supply.

[ example two ]

As shown in fig. 7, in the first embodiment, the stopper 4 is provided at the upper end of the ink cartridge 100, the stopper 4 includes the base 42 integrally formed with the first casing 1 or the second casing 2, the base 42 is provided with the accommodating chamber 421 and the through hole 422, and the through hole 422 has the center line L parallel to the vertical direction. The spacing device 4 further includes a fixing member 41 installed in the accommodating chamber 421, the fixing member 41 includes a second contact surface 411 and an installation portion 412 separated from each other, a waist portion of the installation portion 412 is farther from the center line L than both ends in the front-rear direction, the installation portion 412 can be engaged with the through hole 422 and kept fixed, the second contact surface 411 is used for contacting with a spacing rod in the apparatus, the fixing member 41 is made of a material having a rough surface, for example, the fixing member 41 is made of a material such as rubber or sand paper, so as to increase the friction force between the second contact surface 411 and the spacing rod, and the ink cartridge 100 is further kept stable when the ink cartridge 100 is installed to the apparatus.

The utility model adopts the above technical scheme, can improve the leakproofness of ink horn to make the ink horn also can keep encapsulated situation in the transportation, can not produce the problem that the ink leaked, resources are saved, environmental protection also can ensure simultaneously that the ink can smoothly be supplied to equipment. Further, the stability of the ink cartridge after being mounted to the apparatus can be further maintained.

Claims

1. An ink box detachably mounted to an ink jet imaging device, comprising a shell and an ink outlet device arranged on the shell, wherein the shell comprises an ink cavity capable of storing ink, the ink outlet device comprises an ink outlet cavity communicated with the ink cavity, an ink outlet positioned at the end part of the ink outlet cavity, a piston and an elastic member, the piston is mounted in the ink outlet cavity, and the piston is forced to push towards the ink outlet by the elastic member,

the piston can move between a first position and a second position, when the piston is at the first position, the piston is abutted against the ink outlet under the action of the elastic force of the elastic piece, the second through hole is not communicated with the ink outlet, when the piston is at the second position, the piston moves to a position between the first through hole and the second through hole, and the second through hole is communicated with the ink outlet.

2. The ink cartridge as claimed in claim 1, wherein the ink discharging device is provided with a transfer chamber, and the first through hole and the second through hole communicate with each other through the transfer chamber, the transfer chamber being outside the ink discharging chamber.

3. The ink cartridge of claim 2 wherein the first and second through holes are spaced along the side wall of the ink outlet chamber, and wherein in the second position the piston contacts the side wall of the ink outlet chamber between the first and second through holes.

4. The ink cartridge as claimed in claim 3, wherein a cross section of the first through hole is larger than a cross section of the second through hole.

5. The ink cartridge as claimed in any one of claims 1 to 4, further comprising a stopper for abutting against a stopper rod in an inkjet image forming apparatus.

6. The ink cartridge as claimed in claim 5, wherein the stopper includes a base, and a fixing member mounted on the base, the base being provided with a receiving chamber and a through hole, the through hole having a center line (L) parallel to the up-down direction.

7. The ink cartridge as claimed in claim 6, wherein the fixing member is made of a material having a rough surface.

8. The ink cartridge as claimed in claim 7, wherein the fixing member is mounted in the accommodating chamber, the fixing member includes a contact surface and a mounting portion separated from each other, and a waist portion of the mounting portion is farther from the center line (L) than both ends are.

9. The ink cartridge as claimed in claim 8, wherein the contact surface is adapted to abut against a stopper rod, and the mounting portion is engaged with the through hole.