Coating circulating device for coating ink-jet printing paper

Abstract

The utility model discloses a coating circulating device for coating ink-jet printing paper, which comprises a printer body, a display controller is arranged on the front side of the printer body, an ink-jet coating circulating mechanism is arranged in the printer body, and the ink-jet coating circulating mechanism comprises an ink storage cabin arranged in the printer body. A liquid level meter in signal connection with the display controller is arranged at the upper end of the interior of the ink storage bin, the output end of the bottom of the ink storage bin is connected with an ink outlet pump outlet pipe, the output end of the ink outlet pump outlet pipe is communicated with a connecting pipe, and the outer end of the connecting pipe is connected with a reflux pump return pipe and an ink outlet branch pipe through an arranged three-way electromagnetic valve; the coating circulating device effectively solves the problems that an existing coating circulating device cannot suck ink cleanly and leaks ink, meanwhile, the defect that a current ink-jet printer cannot recycle residual ink after being used, consequently, long-time stagnation occurs, and a plug is blocked is overcome, and convenience is brought to use of the printer.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet printing, in particular to a coating circulation device for coating inkjet printing paper. Background Art

[0002] As a small printing machine widely used by people, inkjet printers have been widely used by people in various fields. In actual applications, since the ink cartridges used are consumables, the ink cannot be recycled, resulting in high costs, and if they are not used for a long time, it will cause clogging and damage to the instrument; and the amount of ink cannot be known at any time, which brings some inconvenience to use. The patent document with the announcement number CN209904256U discloses a coating circulation device for inkjet printing paper coating, which can measure the ink level in the ink storage tank through a liquid level gauge and transmit the information to the display screen for direct observation. The ink passes through the ink outlet tube and is controlled by the solenoid valve to enter the ink outlet tank, and then flows into the inkjet print head through the catheter for printing. After printing is completed, the micro pump can be used to draw the excess ink in the ink cartridge into the ink storage tank through the return pipe to reduce the possibility of ink leakage; it solves the problem that the ink amount cannot be known at any time, consumables are consumed during the printing process, and there is a possibility of ink leakage.

[0003] The above-mentioned device and technical solution still have shortcomings during use, and there are certain irrationalities in the ink diversion path and recycling recovery; for example, after printing is completed, the suction force generated by the micro pump is not enough to form timely and coherent suction of the ink storage cartridge through the ink outlet box. Insufficient negative pressure will still increase the possibility of liquid deposition, unclean suction or ink leakage, making the entire inkjet paint circulation system need to be further improved. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a coating circulation device for coating inkjet printing paper, so as to solve the problem that the coating circulation device for coating inkjet printing paper in the prior art proposed in the above background technology has certain irrationalities in the ink diversion path and circulation recovery, which makes the entire inkjet coating circulation system need to be further improved.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coating circulation device for coating inkjet printing paper, comprising a printer body, a display controller provided on the front of the printer body, an inkjet coating circulation mechanism provided inside the printer body, the inkjet coating circulation mechanism comprising an ink storage chamber provided inside the printer body, a liquid level gauge provided at the upper end of the ink storage chamber that is connected to the display controller signal, an output end at the bottom of the ink storage chamber connected to an ink pump outlet pipe, an output end of the ink pump outlet pipe is connected to a connecting pipe, an outer end of the connecting pipe is respectively connected to a reflux pump return pipe and an ink outlet branch pipe through a three-way solenoid valve, and the other end of the reflux pump return pipe is connected to the ink storage chamber, and an output end of the ink outlet branch pipe is connected to an inkjet print head.

[0007] As a preferred solution of the coating circulation device for inkjet printing paper coating described in the present invention, an ink injection port is also provided at the upper end of the ink storage chamber, and a plug cover is matched at the ink injection port, and the plug cover is located at the top of the printer body.

[0008] As a preferred solution of a coating circulation device for coating inkjet printing paper described in the present invention, the ink outlet pump outlet pipe includes an ink outlet main pipe connected to the ink storage cabin at one end and connected to the connecting pipe at the other end, a solenoid valve arranged at the junction of the ink outlet main pipe and the ink storage cabin, and a peristaltic metering pump arranged at the junction of the ink outlet main pipe and the connecting pipe.

[0009] As a preferred solution of the coating circulation device for coating inkjet printing paper described in the present invention, a micro pump is further provided at the connection portion between the return pipe of the reflux pump and the ink storage compartment.

[0010] As a preferred embodiment of the coating circulation device for inkjet printing paper coating of the present invention, a pressure relief valve is further provided at the junction of the inkjet printing head and the ink outlet branch pipe. In this embodiment, when the printer stops working.

[0011] As a preferred solution of a coating circulation device for coating inkjet printing paper described in the present invention, a paper feed port and a flip limit plate cooperating therewith are further provided at the rear upper end of the printer body, and a paper outlet cooperating with the paper feed port is further provided at the bottom front end of the printer body.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: when the printer stops working and is used for coating inkjet printing paper, the solenoid valve will be closed in time. At this time, the three-way solenoid valve, the pressure relief valve and the micro pump are in the fully open state. During this process, by opening the pressure relief valve, a sufficient amount of air from the outside is passively introduced into the ink outlet branch pipe, which is beneficial to the full-speed suction of the micro pump. At the same time, under the strong negative pressure force and the cooperation of the narrow channel, the remaining ink in the ink outlet main pipe, the connecting pipe, the ink outlet branch pipe and the inkjet print head will be quickly sucked into the ink storage tank by the return pipe of the reflux pump, which effectively solves the problems of unclean ink suction and ink leakage in the existing coating circulation device, and solves the problem that the current inkjet printer cannot recycle the remaining ink after use, which leads to long-term stagnation and blockage, bringing convenience to the use of the printer. In addition, it should be noted that the ink outlet branch pipe here is made of a hose material, so it needs to cooperate with the inkjet print head for horizontal movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the external structure of the body of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the inkjet paint circulation mechanism of the utility model.

[0015] In the figure: 100, printer body; 110, display controller; 120, paper inlet; 130, paper outlet; 200, inkjet paint circulation mechanism; 210, ink storage chamber; 2101, plug cover; 2102, liquid level gauge; 220, ink pump outlet pipe; 2201, ink outlet main pipe; 2202, solenoid valve; 2203, peristaltic metering pump; 230, connecting pipe; 240, three-way solenoid valve; 250, reflux pump return pipe; 251, micro pump; 260, ink outlet branch pipe; 270, inkjet print head; 280, pressure relief valve. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0017] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0019] Figure 1-Figure 2The following is a schematic diagram of the entire structure of a coating circulation device for inkjet printing paper coating according to the present invention. Figure 1-Figure 2 , a coating circulation device for coating inkjet printing paper in this embodiment includes a printer body 100, a display controller 110 is provided on the front of the printer body 100, an inkjet coating circulation mechanism 200 is provided inside the printer body 100, and the inkjet coating circulation mechanism 200 includes an ink storage chamber 210 provided inside the printer body 100, and a liquid level gauge 2102 is provided at the upper end of the ink storage chamber 210, which is connected to the display controller 110 signal. The output end of the bottom of the ink storage chamber 210 is connected to the ink pump outlet pipe 220, and the output end of the ink pump outlet pipe 220 is connected to the connecting pipe 230. The outer end of the connecting pipe 230 is respectively connected to the reflux pump return pipe 250 and the ink outlet branch pipe 260 through the provided three-way solenoid valve 240, and the other end of the reflux pump return pipe 250 is connected to the ink storage chamber 210, and the output end of the ink outlet branch pipe 260 is connected to the inkjet print head 270. A paper feed port 120 and a flap limit plate cooperating therewith are further provided at the upper rear portion of the printer body 100 , and a paper outlet 130 cooperating therewith is further provided at the front bottom portion of the printer body 100 .

[0020] An ink injection port is also provided at the upper end of the ink storage chamber 210, and a plug cover 2101 is matched at the ink injection port, and the plug cover 2101 is located at the top of the printer body 100. It can be understood that the plug cover 2101 can be used to seal the ink injection port on the top of the ink storage chamber 210 to prevent ink from volatilizing or impurities from entering. In addition, through the provided liquid level gauge 2102, the remaining ink amount in the ink storage chamber 210 can be detected during use, and the information value of the remaining ink amount can be displayed through the display controller 110, which is convenient for people to observe intuitively and brings convenience to use.

[0021] The ink pump outlet pipe 220 includes an ink main pipe 2201, one end of which is connected to the ink reservoir 210 and the other end to the connecting pipe 230. A solenoid valve 2202 is located at the junction of the ink main pipe 2201 and the ink reservoir 210, and a peristaltic metering pump 2203 is located at the junction of the ink main pipe 2201 and the connecting pipe 230. A micropump 251 is also located on the return pipe 250 of the reflux pump, where it connects to the ink reservoir 210. A pressure relief valve 280 is also located at the junction of the inkjet print head 270 and the ink outlet branch pipe 260. In this embodiment, when the printer stops operating, the solenoid valve 2201 is promptly closed. At this point, the three-way solenoid valve 240, the pressure relief valve 280, and the micropump 251 are fully open. During this process, the opening of the pressure relief valve 280 allows a sufficient amount of outside air to be passively introduced into the ink outlet branch pipe 260, facilitating full-speed suction by the micropump 251. Simultaneously, under the strong negative pressure and the combined effect of the narrow channel, the remaining ink in the ink outlet main pipe 2201, the connecting pipe 230, the ink outlet branch pipe 260, and the inkjet printhead 270 is rapidly drawn into the ink reservoir 210 by the return pump return pipe 250. This effectively addresses the problems of incomplete ink suction and ink leakage that exist in existing paint circulation devices. It also addresses the drawback of current inkjet printers, which cannot recover excess ink after use, resulting in prolonged stagnation and blockage, thereby improving printer operation. Furthermore, it should be noted that the ink outlet branch pipe 260 is made of a flexible hose and therefore requires horizontal movement with the inkjet printhead 270.

[0022] In summary, in the coating circulation device for inkjet printing paper coating of the present embodiment, in the operation stage, the solenoid valve 2201 and the peristaltic metering pump 2203 are in the fully open state, and the three-way solenoid valve 240 conducts between the connecting pipe 230 and the ink outlet branch pipe 260 and closes the port of the reflux pump return pipe 250, so that the ink can be smoothly output. When the printer stops working, the solenoid valve 2201 will be closed in time. At this time, the three-way solenoid valve 240, the pressure relief valve 280 and the micro pump 251 are in the fully open state. In this process, by opening the pressure relief valve 280, a sufficient amount of air from the outside is passively Introducing the ink into the ink outlet branch pipe 260 is conducive to the full-speed suction of the micro pump 251. At the same time, under the strong negative pressure force and the cooperation of the narrow channel, the remaining ink in the ink outlet main pipe 2201, the connecting pipe 230, the ink outlet branch pipe 260 and the inkjet print head 270 will be quickly sucked into the ink storage cabin 210 by the reflux pump return pipe 250, effectively solving the problems of unclean ink suction and ink leakage in the existing paint circulation device, and solving the problem that the current inkjet printer cannot recycle the remaining ink after use, which leads to long-term stagnation and blockage, bringing convenience to the use of the printer.

[0023] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A coating circulation device for inkjet printing paper coating, characterized in that: The invention comprises a printer body (100), wherein a display controller (110) is provided on the front of the printer body (100), an inkjet paint circulation mechanism (200) is provided inside the printer body (100), and the inkjet paint circulation mechanism (200) comprises an ink storage chamber (210) provided inside the printer body (100), and a liquid level meter (2102) connected to the display controller (110) is provided at the upper end of the ink storage chamber (210). The output end at the bottom of the chamber (210) is connected to an ink pump outlet pipe (220), the output end of the ink pump outlet pipe (220) is connected to a connecting pipe (230), the outer end of the connecting pipe (230) is respectively connected to a reflux pump return pipe (250) and an ink outlet branch pipe (260) through a three-way solenoid valve (240), and the other end of the reflux pump return pipe (250) is connected to the ink storage chamber (210), and the output end of the ink outlet branch pipe (260) is connected to an inkjet print head (270).

2. A coating circulation device for inkjet printing paper coating according to claim 1, characterized in that: An ink injection port is also provided at the upper end of the ink storage chamber (210), and a plug cover (2101) is matched at the ink injection port, and the plug cover (2101) is located at the top of the printer body (100).

3. The coating circulation device for inkjet printing paper coating according to claim 1, characterized in that: The ink outlet pump outlet pipe (220) comprises an ink outlet main pipe (2201) connected to the ink storage chamber (210) at one end and connected to the connecting pipe (230) at the other end, a solenoid valve (2202) provided at the junction of the ink outlet main pipe (2201) and the ink storage chamber (210), and a peristaltic metering pump (2203) provided at the junction of the ink outlet main pipe (2201) and the connecting pipe (230).

4. The coating circulation device for inkjet printing paper coating according to claim 1, characterized in that: A micro pump (251) is further provided on the connection portion of the reflux pump return pipe (250) and the ink storage chamber (210).

5. The coating circulation device for inkjet printing paper coating according to claim 1, characterized in that: A pressure relief valve (280) is also provided at the connection point between the inkjet print head (270) and the ink outlet branch pipe (260).

6. The coating circulation device for inkjet printing paper coating according to claim 1, characterized in that: The upper rear portion of the printer body (100) is also provided with a paper feed port (120) and a flap limit plate matched therewith, and the front bottom portion of the printer body (100) is also provided with a paper outlet (130) matched with the paper feed port (120).

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