Printing device with stable ink circulation

Abstract

This utility model relates to a printing device for stable ink circulation, belonging to the field of ink printing technology. It includes a printing box, with an ink storage tank fixedly installed on the top of the printing box. A stirring shaft is rotatably connected inside the ink storage tank, and stirring blades are fixedly connected at equal intervals to the outer side of the stirring shaft. A ring-shaped heating plate is fixedly installed on the inner wall of the ink storage tank, and a temperature sensor is fixedly installed inside the ink storage tank. A pressure pump is fixedly installed at one end of the top of the printing box, with its input end extending into the interior of the printing box and its output end extending into the interior of the ink storage tank. The beneficial effects of this utility model are that the rotation of the stirring shaft drives multiple stirring blades to rotate, ensuring uniform distribution of pigment in the ink, thereby reducing the problem of ink deposition in the ink storage tank. Furthermore, the pressure pump allows ink from the printing box to be drawn into the ink storage tank for further stirring, ensuring continuous ink circulation in both the ink storage tank and the printing box.

Description

Technical Field

[0001] This utility model relates to the field of ink printing technology, and in particular to a printing device for stable ink circulation. Background Technology

[0002] A printing press is a machine for printing text and images. A modern printing press generally consists of mechanisms such as plate mounting, inking, printing, and paper feeding. Its working principle is as follows: First, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. Then, ink is applied to the areas of the printing plate containing the text and images, either manually or by the printing press itself. The ink is then transferred directly or indirectly to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood, glass, and ceramics), thereby reproducing printed materials identical to the printing plate. The invention and development of the printing press has played an important role in the dissemination of human civilization and culture.

[0003] Currently, during prolonged use of printing equipment, ink tends to accumulate in the ink reservoir, leading to poor output and uneven color in printed patterns, which in turn affects product quality and production efficiency. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a printing device with stable ink circulation.

[0005] The technical solution of this utility model is as follows: a printing device for stable ink circulation includes a printing box, an ink storage tank fixedly installed on the top of the printing box, a stirring shaft rotatably connected inside the ink storage tank, stirring blades fixedly connected at equal intervals on the outer side of the stirring shaft, an annular heating plate fixedly installed on the inner wall of the ink storage tank, a temperature sensor fixedly installed inside the ink storage tank, and a pressure pump fixedly installed at one end of the top of the printing box, the input end of the pressure pump extending into the interior of the printing box, and the output end of the pressure pump extending into the interior of the ink storage tank.

[0006] By adopting the above technical solution, the rotation of the stirring shaft can drive multiple stirring blades to rotate, ensuring that the pigment in the ink is evenly distributed, thereby solving the problem of ink easily depositing in the ink storage tank. Furthermore, by setting up a pressure pump, the ink in the printing box can be drawn into the ink storage tank for further stirring, so that the ink in the ink storage tank and the printing box can continuously flow and circulate.

[0007] In a preferred embodiment, the printing box is provided with a filter assembly, which includes two filter plates disposed inside the printing box. One of the filter plates has a medium-sized perforated filter screen fixedly connected inside, and the other filter plate has a small perforated filter screen fixedly connected inside.

[0008] By adopting the above technical solution, both medium-sized and small-sized pore filter screens are made of microporous materials with different pore sizes, which sequentially intercept and remove large particulate impurities and fine fibers in the ink.

[0009] In a preferred embodiment, the filter assembly further includes two snap-fit ​​grooves formed on both sides of the inner wall of the printing box. Both sides of the medium-sized pore filter screen and the small-sized pore filter screen are fixedly connected with snap-fit ​​blocks, and the snap-fit ​​blocks engage with the corresponding snap-fit ​​grooves.

[0010] By adopting the above technical solution, and through the combined use of snap-fit ​​blocks and snap-fit ​​slots, it is possible for staff to replace and repair medium-sized and small-sized perforated filter screens.

[0011] In a preferred embodiment, the printing box is equipped with a monitoring component, which includes a liquid level sensor fixedly installed on the inner wall of the printing box, a buzzer fixedly connected to the top of the liquid level sensor, and a controller fixedly installed on the outer side of the printing box.

[0012] By adopting the above technical solution, the ink level in the printing box can be monitored by a liquid level sensor. When the ink level is lower than the warning line, a message will be sent to the controller, and the controller will control the buzzer to sound an alarm.

[0013] In a preferred embodiment, two printing rollers are rotatably mounted inside the printing box, and the small-pore filter screen is positioned below the medium-pore filter screen.

[0014] By adopting the above technical solution and using printing rollers, printing operations can be performed on printed materials.

[0015] In a preferred embodiment, a drive motor is fixedly installed at the top center of the ink reservoir, and the output shaft of the drive motor extends into the interior of the ink reservoir and is fixedly connected to the stirring shaft.

[0016] By adopting the above technical solution, the rotation of the output shaft of the drive motor can drive the stirring shaft to rotate.

[0017] In a preferred embodiment, a liquid inlet is fixedly connected to the top of the printing box, and a transfer pipe is fixedly connected between the printing box and the ink storage tank. A solenoid valve is fixedly installed inside the transfer pipe.

[0018] By adopting the above technical solution and using a solenoid valve, the ink flow rate from the ink reservoir into the printing chamber can be precisely controlled.

[0019] In a preferred embodiment, the printing box has an inlet on one side and an outlet on the other side.

[0020] By adopting the above technical solution, and through the setting of the inlet and outlet, printing operations can be carried out in conjunction with printed materials.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In this utility model, the temperature sensor monitors the ink temperature in the ink tank. When the temperature is lower than the preset value, the information is transmitted to the controller, which then activates the annular heating plate to ensure the ink remains at a constant temperature. This reduces ink viscosity and improves printing quality. The rotation of the stirring shaft drives multiple stirring blades to ensure uniform pigment distribution in the ink, reducing ink deposition in the ink tank. Furthermore, the pressure pump draws ink from the printing chamber into the ink tank for re-stirring, ensuring continuous ink circulation in both the ink tank and printing chamber, further guaranteeing uniform color distribution in the ink.

[0023] 2. In this utility model, both the medium-sized and small-sized pore filter screens are made of microporous materials with different pore sizes, which sequentially intercept and remove large particulate impurities and fine fibers in the ink. After step-by-step filtration, the pure ink is sent to the next process stage, ensuring that the final output ink has a delicate and stable texture. Attached Figure Description

[0024] Figure 1 An overall perspective view of a printing device for stable ink circulation according to this utility model;

[0025] Figure 2 Rear view of a printing apparatus for stable ink circulation provided by this utility model;

[0026] Figure 3 A cross-sectional view of a printing apparatus for stable ink circulation provided by this utility model;

[0027] Figure 4 This invention provides a printing apparatus for stable ink circulation. Figure 3 Enlarged view of point A in the middle.

[0028] Legend: 1. Printing box; 2. Ink reservoir; 3. Drive motor; 4. Controller; 5. Pressure pump; 6. Printing roller; 7. Liquid level sensor; 8. Temperature sensor; 9. Annular heating plate; 10. Stirring blades; 11. Stirring shaft; 12. Medium-sized perforated filter screen; 13. Small perforated filter screen; 14. Clip-on block; 15. Clip-on groove; 16. Inlet; 17. Outlet. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-4 A printing device for stable ink circulation includes a printing chamber 1, an ink reservoir 2 fixedly mounted on the top of the printing chamber 1, a stirring shaft 11 rotatably connected inside the ink reservoir 2, stirring blades 10 fixedly connected at equal intervals to the outer side of the stirring shaft 11, an annular heating plate 9 fixedly mounted on the inner wall of the ink reservoir 2, a temperature sensor 8 fixedly mounted inside the ink reservoir 2, and a pressure pump 5 fixedly mounted at one end of the top of the printing chamber 1. The input end of the pressure pump 5 extends into the interior of the printing chamber 1, and the output end of the pressure pump 5 extends into the interior of the ink reservoir 2. Before the printing machine starts, the operator can pour ink into the ink reservoir 2, and the temperature of the ink in the ink reservoir 2 can be monitored by the temperature sensor 8. When the temperature is lower than a preset value, the information will be transmitted to the controller 4. The controller 4 controls the ring heating plate 9 to start, ensuring that the ink is always at a constant temperature, thereby reducing the viscosity of the ink and improving the printing effect. The rotation of the stirring shaft 11 drives multiple stirring blades 10 to rotate, ensuring that the pigment in the ink is evenly distributed, thereby reducing the problem of ink deposition in the ink storage tank 2. Furthermore, the pressure pump 5 can draw the ink in the printing box 1 into the ink storage tank 2 for re-stirring, so that the ink in the ink storage tank 2 and the printing box 1 flows and circulates continuously, thereby further ensuring the uniform distribution of color in the ink.

[0031] Specifically, the printing chamber 1 is equipped with a filtration assembly, which includes two filter plates inside the printing chamber 1. One filter plate has a medium-sized pore filter screen 12 fixedly connected inside, and the other filter plate has a small-sized pore filter screen 13 fixedly connected inside. Both the medium-sized pore filter screen 12 and the small-sized pore filter screen 13 are made of microporous materials with different pore sizes. They sequentially intercept and remove large particles and fine fibers from the ink. After step-by-step filtration, the pure ink is sent to the next process stage, ensuring that the final output ink has a fine and stable texture. The filtration assembly also includes two filters located on both sides of the inner wall of the printing chamber 1. The two sides of the snap-fit ​​slot 15, the medium-sized perforated filter screen 12, and the small perforated filter screen 13 are all fixedly connected with snap-fit ​​blocks 14. The snap-fit ​​blocks 14 are engaged with the corresponding snap-fit ​​slots 15. The printing box 1 is equipped with a monitoring component, which includes a liquid level sensor 7 fixedly installed on the inner wall of the printing box 1. A buzzer is fixedly connected to the top of the liquid level sensor 7. The liquid level sensor 7 can monitor the ink level in the printing box 1. When the ink level is lower than the warning line, it will send a message to the controller 4, and the controller 4 will control the buzzer to sound an alarm to remind the staff to refill the ink in time. The controller 4 is fixedly installed on the outside of the printing box 1.

[0032] Specifically, two printing rollers 6 are rotatably installed inside the printing box 1. A small perforated filter screen 13 is set below a medium perforated filter screen 12. A drive motor 3 is fixedly installed at the top center of the ink tank 2. The rotation of the output shaft of the drive motor 3 can drive the stirring shaft 11 to rotate. The output shaft of the drive motor 3 extends into the interior of the ink tank 2 and is fixedly connected to the stirring shaft 11. An inlet hopper is fixedly connected to the top of the printing box 1, which can fill the ink tank 2. A transfer pipe is fixedly connected between the printing box 1 and the ink tank 2. A solenoid valve is fixedly installed inside the transfer pipe. The flow rate of ink flowing from the ink tank 2 into the printing box 1 can be precisely controlled by the use of the solenoid valve. An inlet 16 is opened on one side of the printing box 1. The inlet 16 and the outlet 17 are set to cooperate with the printing operation. An outlet 17 is opened on the other side of the printing box 1.

[0033] Working principle: First, the operator pours ink into the ink storage tank 2 through the inlet hopper. The temperature sensor 8 monitors the ink temperature in the ink storage tank 2. When the temperature is lower than the preset value, the information is transmitted to the controller 4. The controller 4 then activates the annular heating plate 9 to ensure that the ink is always at a constant temperature, thereby reducing the viscosity of the ink. At the same time, the controller 4 activates the drive motor 3. The rotation of the output shaft of the drive motor 3 drives the rotation of the stirring shaft 11 to rotate multiple stirring blades 10, ensuring that the pigment in the ink is evenly distributed. After the printed matter enters the printing box 1, the operator can open the solenoid valve in the transfer pipe, allowing the ink in the ink storage tank 2 to flow into the printing box 1. The pressure pump 5 draws the ink from the printing box 1 into the ink storage tank 2 for further stirring, so that the ink in the ink storage tank 2 and the printing box 1 continuously circulates, thereby further ensuring the even distribution of color in the ink.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A printing apparatus for stable ink circulation, comprising a printing box (1), characterized in that: The top of the printing box (1) is fixedly installed with an ink tank (2). The inside of the ink tank (2) is rotatably connected with a stirring shaft (11). Stirring blades (10) are fixedly connected at equal intervals on the outside of the stirring shaft (11). An annular heating plate (9) is fixedly installed on the inner wall of the ink tank (2). A temperature sensor (8) is fixedly installed inside the ink tank (2). A pressure pump (5) is fixedly installed at one end of the top of the printing box (1). The input end of the pressure pump (5) extends into the inside of the printing box (1), and the output end of the pressure pump (5) extends into the inside of the ink tank (2).

2. The printing apparatus for stable ink circulation according to claim 1, characterized in that: The printing box (1) is equipped with a filter assembly inside. The filter assembly includes two filter plates disposed inside the printing box (1). One of the filter plates is fixedly connected to a medium-sized perforated filter screen (12), and the other filter plate is fixedly connected to a small perforated filter screen (13).

3. The printing apparatus for stable ink circulation according to claim 2, characterized in that: The filter assembly also includes two snap-fit ​​slots (15) on both sides of the inner wall of the printing box (1). Both sides of the medium-sized hole filter screen (12) and the small hole filter screen (13) are fixedly connected with snap-fit ​​blocks (14), and the snap-fit ​​blocks (14) are engaged with the corresponding snap-fit ​​slots (15).

4. The printing apparatus for stable ink circulation according to claim 1, characterized in that: The printing box (1) is equipped with a monitoring component inside. The monitoring component includes a liquid level sensor (7) fixedly installed on the inner wall of the printing box (1). A buzzer is fixedly connected to the top of the liquid level sensor (7). A controller (4) is fixedly installed on the outside of the printing box (1).

5. The printing apparatus for stable ink circulation according to claim 3, characterized in that: The printing box (1) has two printing rollers (6) mounted inside, and the small perforated filter screen (13) is located below the medium perforated filter screen (12).

6. The printing apparatus for stable ink circulation according to claim 1, characterized in that: A drive motor (3) is fixedly installed at the top center of the ink storage tank (2). The output shaft of the drive motor (3) extends into the interior of the ink storage tank (2) and is fixedly connected to the stirring shaft (11).

7. The printing apparatus for stable ink circulation according to claim 1, characterized in that: The top of the printing box (1) is fixedly connected to a liquid inlet hopper, and a transfer pipe is fixedly connected between the printing box (1) and the ink storage tank (2). A solenoid valve is fixedly installed inside the transfer pipe.

8. The printing apparatus for stable ink circulation according to claim 1, characterized in that: The printing box (1) has an inlet (16) on one side and an outlet (17) on the other side.

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