Ink jet device capable of supplying ink in large-ink-amount expansion mode

Abstract

The invention discloses an ink jet device capable of supplying ink in a large-ink-amount expansion mode. The ink jet device comprises a frame body, a back pressure adjusting mechanism, two sets of ink films, two sets of shell cover bodies, a connecting assembly and an ink supply cartridge. The frame body is provided with air holes and ink supply channels. The air hole and the ink supply channel penetrate through the interior of the frame body. The inkjet cartridge also includes an inkjet wafer. The ink supply channel of the ink jet cartridge is communicated with the ink supply channel of the ink supply cartridge through a connecting assembly. The ink-jet cartridge forms large-ink-amount expanded ink supply, and the back pressure adjusting mechanism can be adjusted to keep certain internal pressure balance, so that the ink-jet wafer can eject ink when the ink is supplied and keep no leakage when the ink is not supplied.

Description

Technical Field

[0001] The present invention relates to an inkjet device for large ink volume expansion and ink supply. More specifically, it is an inkjet cartridge that solves the problem of insufficient large-volume ink supply by improving the supply ink cartridge structure of the inkjet cartridge, so as to enhance the large ink volume expansion and ink supply of the ink. Background Art

[0002] The present invention relates to applications where inkjet printers require precise inkjetting, such as the layout of printed circuit boards. In such printers, the ink storage component is usually maintained under sub-atmospheric pressure or negative pressure so that ink does not leak or drip from the nozzles of the inkjet chip. Various types of ink storage elements can be used, such as storage cartridges and membranes, etc., including refillable ink storage cartridges mounted on a movable printer carriage, disposable replaceable cartridges mounted on the printer carriage, and remote or off-machine ink storage assemblies that pump ink from them to the printhead through pipes. In refillable or disposable cartridges on printers, polymer foam is usually provided in the cartridge so that the capillary action of the foam will prevent ink from dripping from the printhead. The type of polymer foam commonly used for this purpose is non-biodegradable, so it causes environmental problems whenever a previously used cartridge is discarded at its due time. In addition, using industrial foam in the cartridge limits the operating pressure range of the cartridge, and such polymer foam usually leaves chemical residues that are incompatible or react adversely with the printer ink. Therefore, the relatively long pipe used to transport ink from the backpressure regulating mechanism to the nozzles of the inkjet chip cannot well adapt to different printing pressure ranges.

[0003] However, although in the existing technologies, for example, U.S. Patent Publication No.: US5541632A, published on July 30, 1996, discloses the structure and manufacturing method of a backpressure regulating mechanism, and U.S. Patent Publication No.: US6000791A, published on December 14, 1999, discloses the structure and manufacturing method of a backpressure regulating mechanism, the aforementioned two disclosures have significantly improved the ink supply efficiency. Due to the increasing demand in current technology and the market for reducing the volume of ink cartridges or increasing the ink supply volume, how to further improve the structure of the inkjet cartridge with a backpressure regulating mechanism based on traditional technologies to increase the ink supply transmission volume and thinness of the inkjet cartridge remains an unchanged topic. In addition, when the external ink storage component is used to increase the ink supply volume and supply efficiency, the structure of the external ink storage component itself also requires a significant improvement. The reason is that the internal stress of the inkjet cartridge and the external ink storage component are different, which will cause the ink inside the ink storage component to not be completely supplied to the inkjet cartridge, and will also make the ink supply process intermittent. Therefore, from the current market perspective, the existing inkjet cartridges with backpressure regulating mechanisms still have great room for improvement. Summary of the Invention

[0004] The main object of the present invention is to provide an inkjet device with large ink supply expansion. To avoid insufficient ink supply in the inkjet cartridge, the ink supply process cannot adapt to the internal negative pressure of the inkjet cartridge and the supply ink cartridge, which affects the ink supply transmission process and the problem that a large amount of ink cannot be supplied. Therefore, an inkjet cartridge and a supply ink cartridge with back pressure adjustment mechanisms are respectively adopted to suppress the internal pressure balance of the inkjet cartridge and the supply ink cartridge, so that the inkjet chip can smoothly supply ink to the nozzle holes to eject ink when heated, and the problem of no leakage when not supplying ink. After further improving the traditional inkjet cartridge structure, continuous large ink supply expansion is achieved, and the inkjet efficiency and ink supply volume of the inkjet cartridge are further improved. To achieve the above object, the present invention provides an inkjet cartridge with an expanded back pressure adjustment mechanism, including: an inkjet cartridge, including an inkjet chip, a frame body, a back pressure adjustment mechanism, two ink membranes and two outer shell covers. The inkjet chip is arranged outside the frame body and has a plurality of nozzle holes communicating with the internal space of the frame body to eject an ink when heated. The back pressure adjustment mechanism is arranged inside the frame body. The two ink membranes are respectively sealed on both sides of the frame body to form a sealed internal space of the frame body for accommodating an ink. The two outer shell covers are sealed on both sides of the frame body to cover the two ink membranes to form the inkjet cartridge. The frame body is provided with an air hole and at least one ink supply channel respectively penetrating and communicating with the internal space of the frame body. The ink supply channel is used for injecting the ink and storing it in the frame body; at least one supply ink cartridge, including a frame body, a back pressure adjustment mechanism, two ink membranes and two outer shell covers. The back pressure adjustment mechanism is arranged inside the frame body. The two ink membranes are respectively sealed on both sides of the frame body to form a sealed internal space of the frame body for accommodating the ink. The two outer shell covers are sealed on both sides of the frame body to cover the two ink membranes to form the supply ink cartridge. The frame body is provided with at least one ink supply channel respectively penetrating and communicating with the internal space of the frame body. The ink supply channel is used for injecting the ink and storing it in the frame body; wherein, the ink supply channel of the inkjet cartridge is communicated with the ink supply channel of the supply ink cartridge through a connection component, so that the inkjet cartridge can form a large ink supply expansion. When the inkjet chip of the inkjet cartridge is heated and controlled, through the back pressure adjustment mechanism, the air hole of the inkjet cartridge and the back pressure adjustment mechanism of the supply ink cartridge, a certain internal pressure balance can be adjusted and maintained, so that the nozzle holes of the inkjet chip can smoothly supply ink and eject ink, and no leakage occurs when not supplying ink.

[0005] To achieve the above object, in the inkjet device with large ink supply expansion of the present invention, the ink supply channels of multiple supply ink cartridges form a specific series connection large ink supply expansion method through the connection component. Description of the Drawings

[0006] Figure 1A Schematic diagram of the appearance of the ink cartridge of the present invention.

[0007] Figure 1B Exploded view of the ink cartridge of the present invention.

[0008] Figure 1C This is a schematic longitudinal partial cross-sectional view of the ink cartridge of the present invention.

[0009] Figure 1D This is a schematic transverse partial cross-sectional view of the ink cartridge of the present invention.

[0010] Figure 2A This is a schematic external view of the supply ink cartridge of the present invention.

[0011] Figure 2B This is an exploded schematic view of the supply ink cartridge of the present invention.

[0012] Figure 2C This is a schematic longitudinal partial cross-sectional view of the supply ink cartridge of the present invention.

[0013] Figure 2D This is a schematic transverse partial cross-sectional view of the supply ink cartridge of the present invention.

[0014] Figure 3 This is a schematic view of the connection between the ink cartridge and the supply ink cartridge of the present invention.

[0015]

Symbol Explanation

[0016] 1: Inkjet Cartridge

[0017] 11: Inkjet Chip

[0018] 11a: Nozzle

[0019] 12, 21: Housing

[0020] 13, 22: Back Pressure Adjustment Mechanism

[0021] 13a, 22a: Side Plate

[0022] 13b, 22b: Bow Spring

[0023] 14, 23: Ink Film

[0024] 15, 24: Outer Shell Cover

[0025] 16: Air Hole

[0026] 17, 25: Ink Supply Channel

[0027] 2: Supply Ink Cartridge

[0028] 3: Plug Cover 4: Connection Component Detailed Embodiment

[0029] Embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different aspects, all of which do not depart from the scope of the present invention, and the descriptions and drawings therein are for illustrative purposes in essence and not for limiting the present invention.

[0030] Please refer to Figure 1A and Figure 1B As shown, the structure of the inkjet cartridge 1 is composed of a frame 12, a back pressure adjusting mechanism 13, an ink film 14 and a housing cover 15. An inkjet chip 11 is provided outside the frame 12. The inkjet chip 11 has a plurality of nozzles 11a. The back pressure adjusting mechanism 13 and the ink film 14 are disposed inside the frame 12. The two sides of the frame 12 can respectively seal the ink film 14 to form an internal space of the frame 12 that can hermetically accommodate ink. The housing cover 15 covers the two sides of the frame 12 to shield the ink film 14 to form the structure of the inkjet cartridge 1. The nozzles 11a communicate with the internal space of the frame 12, and the ink is ejected through the heat control of the inkjet chip 11. There are air holes 16 and an ink supply channel 17 passing through the inside of the frame 12. The ink supply channel 17 can inject ink so that the internal space of the frame 12 can store ink. When the ink supply channel 17 does not inject ink, a plug cover 3 can be provided for capping and sealing to prevent ink leakage. In the embodiment of the present invention: the number of the ink film 14 and the housing cover 15 is two groups, the number of the air holes 16 and the plug cover 3 is 1, and the number of the ink supply channels 17 is at least 1, and the number is not limited thereto. Please refer to Figure 1C and Figure 1D As shown, the back pressure adjusting mechanism 13 has side plates 13a and an arcuate spring 13b. The side plates 13a are rectangular sheets with arcs made of specific materials and traditional techniques and crafts. The arcuate spring 13b is made of specific materials and traditional techniques and crafts. The techniques include, for example: forming methods such as cutting, integrally forming, bonding, snap assembling and welding of stainless steel metal materials. The arcuate spring 13b is fixed to the central position of the side plates 13a. The arcuate spring 13b can expand and contract to control the side plates 13a. The side plates 13a are controlled to expand and contract to transmit a force to the ink film 14, so that the internal space of the frame 12 storing ink can be adjusted to maintain a certain internal pressure balance through the back pressure adjusting mechanism 13 and the air holes 16. In the embodiment of the present invention: the number of the side plates 13a is two groups, and both the side plates 13a and the arcuate spring 13b are made of stainless steel metal materials by cutting and welding processes, and the number and the selected processes are not limited thereto.

[0031] Please refer to Figure 2A and Figure 2BAs shown, the structure of the ink supply cartridge 2 is composed of a housing 21, a back pressure adjusting mechanism 22, an ink film 23, and a housing cover 24. The back pressure adjusting mechanism 22 and the ink film 23 are disposed inside the housing 21. The two sides of the housing 21 can respectively seal the ink film 23 to form an internal space of the housing 21 that can hermetically accommodate ink. The housing cover 24 covers the two sides of the housing 21 to shield the ink film 23, constituting the structure of the ink supply cartridge 2. There are an air hole 16 and an ink supply channel 25 passing through the inside of the housing 21. Ink can be injected into the ink supply channel 25 so that the internal space of the housing 21 can store ink. When no ink is injected into the ink supply channel 25, a plug cap 3 can be set to seal it to prevent ink leakage. In the embodiment of the present invention: the number of the ink film 23 and the housing cover 24 is two groups, and the number of the ink supply channels 17 is at least one, and the number is not limited thereto.

[0032] Please refer to Figure 2C and Figure 2D As shown, the structure of the back pressure adjusting mechanism 22 is composed of a side plate 22a and an arcuate spring 22b. The side plate 22a is a rectangular piece with an arc made of a specific material and traditional craftsmanship. The arcuate spring 22b is made of a specific material and traditional craftsmanship. The craftsmanship of the side plate 22a and the arcuate spring 22b includes, for example, cutting and integrally forming, bonding, snap assembling, and welding of stainless steel metal materials. The arcuate spring 22b is fixed to the center position of the side plate 22a. The arcuate spring 22b can stretch or compress to control the side plate 22a. The side plate 22a is controlled to stretch and compress to transmit a force to the ink film 23, so that the internal space of the housing 21 storing ink can be adjusted to maintain a certain internal pressure balance through the back pressure adjusting mechanism 22 and the air hole 16. In the embodiment of the present invention: the number of the side plates 22a is two groups, and both the side plate 22a and the arcuate spring 22b are made of stainless steel metal materials by cutting and welding processes, and the number and the selected processes are not limited thereto.

[0033] Please refer to Figure 3As shown in the figure, the present invention provides a structure of an inkjet device with large ink volume expansion for ink supply. The ink supply channels 17 of the inkjet cartridge 1 and the ink supply channels 25 of the supply ink cartridge 2 are connected and communicated through 4 sets of connection components. The connection component 4 is a conduit. When the inkjet chip 11 is under heat control, it guides the ink stored inside the frames 12 and 21 of the inkjet cartridge 1 and the supply ink cartridge 2 to flow through the ink supply channels 17 and 25, and adjusts and maintains the internal pressure balance through the back pressure adjustment mechanisms 13 and 22 and the air holes 16, so that the ink is smoothly supplied to the multiple nozzles 11a for ejection. When the inkjet chip 11 is not under heat control, through the connection mode of the connection component 4 to connect the ink supply channels 17 and 25, the ink in the multiple nozzles 11a will not leak. Moreover, at least one ink supply channel 25 of one supply ink cartridge 2 and at least one ink supply channel 25 of another supply ink cartridge 2 can be connected to each other through the connection component 4 to form a specific series ink supply mode, and the ink supply modes are respectively horizontal series arrangement and vertical series arrangement. To sum up, the present invention provides an inkjet device with large ink volume expansion for ink supply, which solves the problems that the ink is smoothly supplied when the inkjet chip of the inkjet cartridge is under heat control, and there is no leakage, dripping or insufficient ink supply when it is not under heat control. By adjusting the back pressure adjustment mechanism, a certain internal pressure balance is maintained inside the frames of the inkjet cartridge and the supply ink cartridge, and through the connection component, the inkjet cartridge has the effect of large ink volume expansion for ink supply. By connecting the supply ink cartridges to each other, the inkjet cartridge can achieve the effect of increasing the ink volume by several times. On the basis of further increasing the ink supply volume by several times, the combined structure of this inkjet device with large ink volume expansion for ink supply is very useful for production.

Claims

1. An inkjet device for large ink volume expansion and ink supply, comprising: An inkjet cartridge, including an inkjet chip, a frame, a backpressure adjustment mechanism, two ink films and two outer shell covers. The inkjet chip is disposed outside the frame and has a plurality of nozzles communicating with the internal space of the frame. The frame is heated to control the ejection of an ink through the plurality of nozzles. The backpressure adjustment mechanism is disposed inside the frame. The two ink films are respectively sealed on both sides of the frame to seal the internal space of the frame, enabling the frame to accommodate the ink. The two outer shell covers cover both sides of the frame and shield the two ink films to form the inkjet cartridge. The frame is provided with an air hole and at least one ink supply channel, and the air hole and the at least one ink supply channel respectively penetrate and communicate with the internal of the frame. The ink is supplied through the ink supply channel and injected and stored inside the frame; and At least one supply ink cartridge, including a frame, a backpressure adjustment mechanism, two ink films and two outer shell covers. The backpressure adjustment mechanism is disposed inside the frame. The two ink films are respectively sealed on both sides of the frame to seal the internal space of the frame, enabling the frame to accommodate the ink. The two outer shell covers cover both sides of the frame and shield the two ink films to form the supply ink cartridge. The frame is provided with the at least one ink supply channel, and the at least one ink supply channel penetrates and communicates with the internal of the frame. The ink is supplied through the ink supply channel and injected and stored inside the frame; Wherein, the ink supply channel of the inkjet cartridge is communicated with the ink supply channel of the supply ink cartridge through a connection component, so that the inkjet cartridge can achieve large ink volume expansion and ink supply. When the inkjet chip of the inkjet cartridge is heated and controlled, through the backpressure adjustment mechanism, the air hole of the inkjet cartridge and the backpressure adjustment mechanism of the supply ink cartridge, a certain internal pressure balance can be adjusted and maintained, so that the nozzles of the inkjet chip can eject ink, and no leakage occurs when no ink is supplied.

2. The inkjet device for large ink volume expansion and ink supply according to claim 1, wherein when the ink supply channels of the inkjet cartridge and the supply ink cartridge are not communicated, a plug cover can be respectively provided to seal and prevent the ink from leaking.

3. The inkjet device for large ink volume expansion and ink supply according to claim 1, wherein the backpressure adjustment mechanisms of the inkjet cartridge and the supply ink cartridge respectively have two side plates and a bow-shaped spring. The bow-shaped spring is fixed between the two side plates, so that when the two side plates are pressed, they can expand and compress, and the internal pressure of the ink in the frames of the inkjet cartridge and the supply ink cartridge can be adjusted.

4. The inkjet device for large ink volume expansion and ink supply according to claim 1, wherein the ink supply channels of multiple supply ink cartridges form a specific series connection large ink volume expansion and ink supply mode through the connection component.

5. The inkjet device for large ink volume expansion and ink supply according to claim 4, wherein the specific series connection large ink volume expansion and ink supply mode is a row longitudinal series connection arrangement mode.

6. The inkjet device for large ink volume expansion and ink supply according to claim 4, wherein the specific series connection large ink volume expansion and ink supply mode is a row transverse series connection arrangement mode.

7. The inkjet device with large ink volume extended ink supply as claimed in claim 1 or 4, wherein the connection component is a conduit.

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