Pictorial machine ink bag with double-sided filter cavity

Abstract

The photo machine ink bag comprises a frame body and a partition plate, the top and the bottom of the frame body are provided with an ink inlet nozzle and an ink outlet nozzle respectively, the partition plate divides an inner cavity of the frame body into a first chamber and a second chamber which are integrated and provided with two faces, and the first chamber and the second chamber are each provided with at least one filtering cavity. The filter cavities are sequentially communicated with one another, any one of the first chamber and the second chamber is further provided with a pressure cavity, and the other one of the first chamber and the second chamber is provided with a flow guide cavity communicated with the pressure cavity; the ink inlet nozzle communicates with the filtering cavity, the filtering cavity communicates with any one of the flow guide cavity and the pressure cavity, and the other one of the flow guide cavity and the pressure cavity communicates with the ink outlet nozzle. The two faces of the ink bag are respectively provided with at least one filter screen, on one hand, impurities are filtered in batches and multiple times, and the ink outlet nozzle is effectively prevented from being blocked; and on the other hand, the ink gradually seeps from the filter screen, so that uneven distribution of the sprayed ink caused by uneven flow velocity is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field, concretely relates to a photographic machine ink bag with double -sided filter cavity. BACKGROUND

[0002] At present, the working principle of the common photographic machine ink bag on the market is that: negative pressure is manufactured in the ink bag, the valve door of the ink bag is opened by utilizing the air pressure difference inside and outside the ink bag to make the ink flow to the ink outlet of the photographic machine nozzle, so that the ink delivery and printing are realized. However, the photographic machine nozzle of the prior art may cause uneven distribution of the ejected ink due to uneven ink flow rate of the input nozzle during work, the ejected pattern has different color depth, and the spraying quality is affected.

[0003] Among them, the patent CN 221794185 U discloses an improved ink bag, which forms a circuitous flow guide channel 7 by setting a guide piece 8, prevents the vertical flow of ink, reduces the change of pressure in the ink bag cavity, and to some extent, avoids uneven distribution of the ejected ink caused by uneven ink flow rate.

[0004] However, the flow guide channel 7 is circuitous and narrow, which hinders the progress of the ink to some extent, causes the ink to stagnate on the flow guide channel 7, accelerates the concentration and deposition of the ink, and easily causes the ink outlet to be blocked. UTILITY MODEL CONTENT

[0005] In order to solve the technical problems existing in the prior art, the purpose of the utility model is to provide a photographic machine ink bag with double -sided filter cavity, which abandons the narrow and circuitous flow guide channel, adopts double -sided filter cavity to guide the ink, can effectively control the ink flow rate, and can avoid the ink outlet to be blocked.

[0006] The purpose of the utility model is realized by the following technical scheme: a photographic machine ink bag with double -sided filter cavity, including frame and baffle, the top and bottom of the frame are respectively provided with ink inlet and ink outlet, the baffle separates the inner cavity of the frame into integrated two -sided first chamber and second chamber, the first chamber and the second chamber are respectively provided with at least one filter cavity, the filter cavities are sequentially communicated with each other, any one of the first chamber and the second chamber is further provided with a pressure cavity, the other one of the first chamber and the second chamber is provided with a flow guide cavity communicated with the pressure cavity;The ink inlet communicates the filter cavities, the filter cavities communicate any one of the flow guide cavity and the pressure cavity, and the other one of the flow guide cavity and the pressure cavity communicates the ink outlet.

[0007] Specifically, the first chamber is provided with a first filtering cavity, and the second chamber is provided with a second filtering cavity; the first filtering cavity is provided with a first filter screen, and the first filtering cavity is divided into a first filtering outer cavity and a first filtering inner cavity by the first filter screen; the ink inlet nozzle is communicated with the first filtering outer cavity, and the first filtering inner cavity is communicated with the second filtering cavity through a first flow guide hole.

[0008] Specifically, the second filtering cavity is provided with a second filter screen, and the second filtering cavity is divided into a second filtering outer cavity and a second filtering inner cavity by the second filter screen; the first filtering inner cavity is communicated with the second filtering inner cavity through the first flow guide hole.

[0009] Further, the area of the first filtering cavity accounts for 30% to 60% of the area of the first chamber; and / or, the area of the second filtering cavity accounts for 30% to 60% of the area of the second chamber.

[0010] Specifically, the second chamber is provided with a flow guide channel and a flow guide cavity, and the second filtering outer cavity is communicated with the flow guide cavity through the flow guide channel.

[0011] Specifically, the first chamber is provided with a pressure cavity, the flow guide cavity is communicated with the pressure cavity through a second flow guide hole, the pressure cavity is communicated with the ink outlet nozzle, and a switch valve is arranged in the flow guide cavity and the pressure cavity.

[0012] Specifically, the filtering cavity is provided with a filter screen and a supporting frame, the filter screen is laid in the filtering cavity, the supporting frame surrounds the edge of the filter screen, and the filtering cavity is divided into a filtering outer cavity close to the open surface of the frame body and a filtering inner cavity close to the partition plate by the filter screen.

[0013] Further, the supporting frame is protruded inwardly to form a surrounding edge based on the inner wall of the filtering cavity, and the position of the supporting frame is lower than the open surface of the frame body; or the supporting frame is formed by a surrounding plate protruding to the open surface of the frame body based on the end surface of the partition plate, and the height of the protrusion is lower than the open surface of the frame body.

[0014] Further, the filtering cavity is further provided with a plurality of supporting protrusions, which are formed into columns protruding to the open surface of the frame body based on the end surface of the partition plate, and the upper end surface of the supporting protrusions abuts against the filter screen to support the filter screen.

[0015] Specifically, the filtering cavity is formed by a surrounding plate protruding to the open surface of the frame body based on the end surface of the partition plate, and the height of the protrusion is the same as the open surface of the frame body.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] 1. The utility model discloses a filter screen is arranged to the both sides of ink sac at least one, one hand, filters the impurity in batches many times, promotes the purity of ink, effectively avoids the blockage of ink outlet; on the other hand, ink gradually seeps from the filter screen, effectively reduces the impact force of ink to ink sac cavity in the flowing process, gently adjusts the flow rate of ink, avoids the uneven distribution of the ink that sprays causes.

[0018] 2. The utility model discloses abandoning the circuitous narrow flow guide channel to control ink flow rate, and mainly guide ink with multiple ink storage cavities, and the ink storage cavity has greater volume and area to guide ink than the flow guide channel of prior art, avoids the local accumulation of ink.

[0019] 3. The utility model discloses the reasonable zoning under the frame of original ink sac, increases the filter space to improve the performance of ink sac, so that the ink sac of the utility model is applicable to various photo machines and printers on the market, has huge market prospect. DRAWINGS

[0020] Figure 1 It is the structure schematic drawing of this embodiment, and shows the structure of the first chamber.

[0021] Figure 2 It is the structure schematic drawing of this embodiment, and shows the structure of the second chamber.

[0022] Figure 3 It is the A-A sectional view of Figure 2 .

[0023] Figure 4 It is the structure schematic drawing of this embodiment, and shows the part that pressure cavity communicates with ink outlet.

[0024] Figure 5 It is the structure schematic drawing of this embodiment that removes the first filter screen and switch valve.

[0025] Figure 6 It is the structure schematic drawing of this embodiment that removes the second filter screen and switch valve.

[0026] In the drawing:

[0027] 01-frame body;02-ink inlet;03-ink outlet;04-baffle;041-first flow guide hole;042-second flow guide hole;

[0028] 10-first chamber;11-first filter cavity;111-first filter screen;112-first support frame;113-first bearing convex;114-first filter outer cavity;115-first filter inner cavity;14-pressure cavity;146-second disc;147-push rod;148-second spring;

[0029] 20-Second chamber; 22-Second filter chamber; 221-Second filter screen; 222-Second support frame; 223-Second support protrusion; 224-Second filter outer cavity; 225-Second filter inner cavity; 23-Guide cavity; 236-First disc; 238-First spring; 239-Seal; 25-Guide channel. Detailed Implementation

[0030] To facilitate understanding of this utility model, the technical solutions and advantages of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Any mechanisms or methods not elaborated in this utility model can be referred to in the prior art. The specific structure and features of this utility model are illustrated below by way of example and should not constitute any limitation on this utility model. Furthermore, any technical feature mentioned below (including implicit or disclosed features), as well as any technical feature directly shown or implied in the figures, can be arbitrarily combined or deleted among these technical features to form more other embodiments that may not be directly or indirectly mentioned in this utility model. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0031] like Figures 1-6 As shown in the figure, this embodiment of an ink cartridge for a photo printer has a double-sided filter chamber. The ink cartridge is a single-channel ink cartridge, including a frame 01. The top and bottom of the frame 01 are respectively provided with a pagoda-shaped ink inlet 02 and an ink outlet 03. The frame 01 has two open surfaces enclosed by a frame, and the two open surfaces are sealed by a flexible sealing membrane. A partition 04 is provided in the frame 01, which divides the inner cavity of the frame 01 into a first chamber 10 and a second chamber 20 for guiding ink flow. The first chamber 10 and the second chamber 20 are connected through a flow guide hole. The first chamber 10 and the second chamber 20 are each provided with at least one filter chamber, and the filter chambers are sequentially connected to each other. Either the first chamber 10 and the second chamber 20 are also provided with a pressure chamber with a switching valve. The other of the first chamber 10 and the second chamber 20 is provided with a flow guide chamber that communicates with the pressure chamber. The ink inlet 02 is connected to the filter chamber. The filter chamber is connected to either the flow guide chamber or the pressure chamber. The other of the flow guide chamber and the pressure chamber is connected to the ink outlet 03.

[0032] Specifically, the first chamber 10 is provided with a first filter cavity 11 and a pressure cavity 14, the ink inlet nozzle 02 is communicated with the first filter cavity 11, and the ink outlet nozzle 03 is communicated with the pressure cavity 14. The second chamber 20 is provided with a second filter cavity 22, a flow guide channel 25 and a flow guide cavity 23, the second filter cavity 22 is communicated with the flow guide cavity 23 through the flow guide channel 25. The partition plate 04 is provided with a first flow guide hole 041 and a second flow guide hole 042. The ink inlet nozzle 02 is communicated with the first filter cavity 11, the first filter cavity 11 is communicated with the second filter cavity 22 through the first flow guide hole 041, the second filter cavity 22 is communicated with the flow guide cavity 23 through the flow guide channel 25, the flow guide cavity 23 is communicated with the pressure cavity 14 through the second flow guide hole 042, and the pressure cavity 14 is communicated with the ink outlet nozzle 03.

[0033] The first filter cavity 11 is a square frame type, which is formed by a surrounding plate protruding from the end face of the partition plate 04 to the open face, and the protruding height is the same as the open height of the frame body 01. The first filter cavity 11 is provided with a first filter screen 111, a first supporting frame 112 and a plurality of first supporting protrusions 113, and the first filter screen 111 is laid in the first filter cavity 11. The first supporting frame 112 surrounds the edge of the first filter screen 111 to help the first filter screen 111 to separate the first filter cavity 11 into the inside and the outside. The first supporting frame 112 is formed by a surrounding plate protruding from the end face of the partition plate 04 to the open face, and the protruding height is lower than the open face of the frame body 01. In this embodiment, preferably, the height of the first supporting frame 112 is half of the height of the first filter cavity 11. The first filter cavity 11 is divided into a first filter outer cavity 114 close to the open face of the frame body 01 and a first filter inner cavity 115 close to the partition plate 04 by the first filter screen 111, the first filter outer cavity 114 is communicated with the ink inlet nozzle 02, and the first filter inner cavity 115 is communicated with the first flow guide hole 041. The first supporting protrusions 113 are three, which are formed in a column shape protruding from the end face of the partition plate 04 to the open face, and the upper end face of the first supporting protrusions 113 corresponds to the first filter screen 111 to support the first filter screen 111. In this embodiment, preferably, the area of the first filter cavity 11 accounts for 30% to 60% of the area of the first chamber 10.

[0034] The second filtering cavity 22 is a square frame, which is formed by a wall protruding from the end surface of the partition plate 04 to the open surface, and the height of the protruding wall is equal to the height of the open surface of the frame body 01. The second filtering cavity 22 is provided with a second filter screen 221, a second supporting frame 222, and a plurality of second supporting protrusions 223, and the second filter screen 221 is arranged in the second filtering cavity 22. The second supporting frame 222 is arranged around the edge of the second filter screen 221 to help the second filter screen 221 to separate the second filtering cavity 22 into an inner part and an outer part. The second supporting frame 222 is formed by a wall protruding from the end surface of the partition plate 04 to the open surface, and the height of the protruding wall is lower than the height of the open surface of the frame body 01. In this embodiment, the height of the second supporting frame 222 is half of the height of the second filtering cavity 22. The second filtering cavity 22 is divided into a second filtering outer cavity 224 close to the open surface of the frame body 01 and a second filtering inner cavity 225 close to the partition plate 04 by the second filter screen 221, the second filtering inner cavity 225 is communicated with the first flow guide hole 041, and the second filtering outer cavity 224 is communicated with the flow guide channel 25. The first supporting protrusions 113 are three columnar protrusions protruding from the end surface of the partition plate 04 to the open surface, and the upper end surface of the second supporting protrusions 223 corresponds to the second filter screen 221 to support the second filter screen 221. In this embodiment, the area of the second filtering cavity 22 accounts for 30% to 60% of the area of the second chamber 20.

[0035] The flow guide cavity 23 is provided with a first disc 236, a first spring 238, and a sealing member 239. The first disc 236 covers the upper opening of the flow guide cavity 23, the sealing member 239 covers the second flow guide hole 042, and the two ends of the first spring 238 are elastically abutted against the first disc 236 and the sealing member 239, respectively. Through the elastic abutment of the first spring 238, the sealing member 239 is elastically pressed on the second flow guide hole 042 to block the second flow guide hole 042.

[0036] The pressure cavity 14 is provided with a second disc 146, a push rod 147, and a second spring 148. The second disc 146 covers the upper opening of the pressure cavity 14, and the outer surface of the second disc 146 is connected with the inner surface of the flexible sealing film, and the second disc 146 moves in and out with the flexible sealing film. The inner surface of the second disc 146 is fixedly connected with one end of the push rod 147, and the other end of the push rod 147 is suspended, and the suspended end of the push rod 147 penetrates through the second flow guide hole 042 and is connected with the sealing member 239. The second spring 148 is sleeved on the push rod 147, and the two ends of the second spring 148 are elastically abutted against the second disc 146 and the partition plate 04, respectively.

[0037] The first disc 236, the first spring 238, the sealing member 239, the second disc 146, the push rod 147, and the second spring 148 jointly form a switch valve for stopping the ink.

[0038] The working principle of the ink cartridge of the photo printer of the embodiment is as follows: ink enters the first filter outer cavity 114 from the ink inlet 02, enters the first filter inner cavity 115 through the first filter screen 111, enters the second filter inner cavity 225 through the first flow guide hole 041, enters the second filter outer cavity 224 through the second filter screen 221, and enters the flow guide cavity 23 through the flow guide channel 25. In the flow guide cavity 23, the second disc 146 is pushed inward under the action of atmospheric pressure by using the negative pressure in the ink cartridge, the push rod 147 pushes the sealing member 239 outward to move away from the second flow guide hole 042 along with the inward movement of the second disc 146, the second flow guide hole 042 is opened, the switch valve is opened, and the ink can enter the pressure cavity 14 from the flow guide cavity 23. At this time, the first spring 238 and the second spring 148 are in a compressed state. The internal pressure of the second chamber 20 can push the second disc 146 to reset after rising, the two springs are also elongated to reset, and the sealing member 239 also returns to the state of being pressed on the second flow guide hole 042, the second flow guide hole 042 is blocked, the switch valve is closed, and the ink stops being delivered.

[0039] In other embodiments, the supporting frame is protruded inwardly based on the inner wall of the filter cavity to form a surrounding edge, and the position of the supporting frame is lower than the opening of the frame body. Preferably, the position of the supporting frame is half of the height of the filter cavity.

[0040] Compared with the prior art, the ink cartridge of the photo printer of the embodiment mainly guides the ink through four cavities to realize a large-capacity and large-area ink guiding space, avoids local accumulation of the ink, ensures smooth flow of the ink, and avoids uneven flow rate of the ink to cause uneven distribution of the ejected ink. More importantly, the ink cartridge of the photo printer of the embodiment is provided with at least one filter screen on each of the two surfaces, which can filter impurities in batches and multiple times to improve the purity of the ink, and on the other hand, the ink gradually seeps out from the filter screen to effectively reduce the impact force of the ink on the inner cavity of the ink cartridge during the flow process, gently adjusts the flow rate of the ink, and further avoids uneven flow rate of the ink to cause uneven distribution of the ejected ink.

[0041] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. For those skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An ink cartridge for an inkjet printer having a dual filter chamber, characterized by, The ink frame comprises a frame and a partition plate, the top and bottom of the frame are respectively provided with an ink inlet and an ink outlet, the partition plate divides the inner cavity of the frame into a first chamber and a second chamber, the first chamber and the second chamber are respectively provided with at least one filter cavity, the filter cavities are sequentially communicated with each other, any one of the first chamber and the second chamber is further provided with a pressure cavity, the other one of the first chamber and the second chamber is provided with a flow guide cavity communicated with the pressure cavity; the ink inlet is communicated with the filter cavities, the filter cavities are communicated with any one of the flow guide cavity and the pressure cavity, the other one of the flow guide cavity and the pressure cavity is communicated with the ink outlet.

2. The photo printer ink cartridge having a double filter chamber according to claim 1, wherein, The first chamber is provided with a first filter cavity, and the second chamber is provided with a second filter cavity; the first filter cavity is provided with a first filter screen, and the first filter cavity is divided into a first filter outer cavity and a first filter inner cavity by the first filter screen, the ink inlet is communicated with the first filter outer cavity, and the first filter inner cavity is communicated with the second filter cavity through a first flow guide hole.

3. The photo printer ink cartridge having a double filter chamber according to claim 2, wherein, The second filter cavity is provided with a second filter screen, and the second filter cavity is divided into a second filter outer cavity and a second filter inner cavity by the second filter screen, and the first filter inner cavity is communicated with the second filter inner cavity through the first flow guide hole.

4. The photo printer ink cartridge having a double filter chamber according to claim 3, wherein, The area of the first filter cavity accounts for 30% to 60% of the area of the first chamber; and / or, the area of the second filter cavity accounts for 30% to 60% of the area of the second chamber.

5. The photo printer ink cartridge having a double filter chamber according to claim 3, wherein, The second chamber is provided with a flow guide channel and a flow guide cavity, and the second filter outer cavity is communicated with the flow guide cavity through the flow guide channel.

6. The photo printer ink pod having a double filter cavity as claimed in claim 4 wherein, The first chamber is provided with a pressure cavity, the flow guide cavity is communicated with the pressure cavity through a second flow guide hole, the pressure cavity is communicated with the ink outlet, and a switch valve is arranged in the flow guide cavity and the pressure cavity.

7. The photo printer ink cartridge having a double filter chamber according to claim 1, wherein, The filter cavity is provided with a filter screen and a supporting frame, the filter screen is laid in the filter cavity, the supporting frame is arranged around the edge of the filter screen, and the filter cavity is divided into a filter outer cavity close to the open surface of the frame and a filter inner cavity close to the partition plate by the filter screen.

8. The photo printer ink pod having a double filter cavity as claimed in claim 7, wherein, The supporting frame is protruded inwardly from the inner wall of the filter cavity to form a surrounding edge, and the position of the supporting frame is lower than the open surface of the frame; or the supporting frame is protruded from the open surface of the frame to form a surrounding plate, and the height of the protrusion is lower than the open surface of the frame.

9. The photo printer ink cartridge having a double filter chamber according to claim 7, wherein, The filter cavity is further provided with a plurality of supporting protrusions, which are protruded from the end surface of the partition plate to form columns, and the upper end surface of the supporting protrusions abuts against the filter screen.

10. The photo printer ink cartridge having a double filter chamber according to claim 7, wherein, The filter cavity is formed by a surrounding plate protruded from the end surface of the partition plate to the open surface of the frame, and the height of the protrusion is the same as the open surface of the frame.

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