Temperature control device

Abstract

The utility model relates to the technical field of temperature control, and discloses a temperature control device which is applied to a printing machine, the printing machine comprises an ink box and a spray head board card, the spray head board card is provided with a spray head, and the temperature control device comprises a first temperature control pipeline, a second temperature control pipeline, a temperature sensor and a temperature controller; the first temperature control pipeline is arranged on the outer side surface of the ink box; the second temperature control pipeline is arranged on the surface of the spray head board card; the first temperature control pipeline is communicated with the second temperature control pipeline; the temperature sensor is arranged in the nozzle, connected with the temperature controller and used for detecting the temperature of the ink in the nozzle; a liquid outlet of the temperature controller is communicated with the first temperature control pipeline, and a liquid return opening of the temperature controller is communicated with the second temperature control pipeline. Based on the scheme of the utility model, the temperature of the ink in the ink box can be controlled through the first temperature control pipeline, the temperature of the nozzle board card can be controlled through the second temperature control pipeline, the first temperature control pipeline is communicated with the second temperature control pipeline, and the temperature of the ink in the ink box and the temperature of the nozzle board card can be controlled at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control, in particular to a temperature control device. Background Art

[0002] When the printing machine is working normally, it has high requirements for the working temperature of the ink. The optimal working temperature range of the ink is generally 28-32°C. When the temperature is too high, the ink is easy to evaporate and cause the ink to dry easily. When the temperature is too low, the fluidity of the ink deteriorates. Both of these situations will cause the ink output of the nozzle to deteriorate, affecting the printing quality. The continuous operation of the printing machine will also cause the temperature of the nozzle board to rise. The temperature of the nozzle board when working is generally around 60°C. If the nozzle board is at a high temperature for a long time, it will affect the working performance of the nozzle board and affect the printing effect of the printing machine. Therefore, it is very important to control the temperature of the ink and nozzle board.

[0003] In the related art, a heat exchanger is usually provided, and the ink flows through the heat exchanger, and the ink passing through the heat exchanger is heated or cooled by a heating plate or a cooling plate provided on the heat exchanger. The heating plate can be used in a low-temperature external environment, and the cooling plate can be used in a high-temperature external environment, but it cannot be used in both low-temperature and high-temperature external environments at the same time, and the heat dissipation requirements of the printhead board are not taken into consideration.

[0004] Therefore, there is an urgent need for a temperature control device that is suitable for different external temperatures and can simultaneously meet the temperature control requirements of the ink and the nozzle board. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the related technology cannot be applied to different external temperatures and cannot simultaneously meet the temperature control requirements of the ink and the nozzle board.

[0006] In order to solve the above technical problems, the utility model provides a temperature control device, which is applied to a printing machine, the printing machine includes an ink cartridge and a nozzle card, the nozzle card is provided with a nozzle, and the temperature control device includes:

[0007] A first temperature control pipeline, a second temperature control pipeline, a temperature sensor and a temperature control machine;

[0008] The first temperature control pipeline is arranged on the outer surface of the ink cartridge; the second temperature control pipeline is arranged on the surface of the nozzle board; the first temperature control pipeline and the second temperature control pipeline are connected;

[0009] The temperature sensor is arranged in the nozzle and connected to the temperature controller to detect the temperature of the ink in the nozzle;

[0010] The liquid outlet of the temperature control machine is connected to the first temperature control pipeline, and the liquid return port of the temperature control machine is connected to the second temperature control pipeline.

[0011] In an optional embodiment, the first temperature control pipe is provided with a first liquid inlet and a first liquid outlet; the second temperature control pipe is provided with a second liquid inlet and a second liquid outlet;

[0012] The first liquid inlet of the first temperature control pipe is connected to the liquid outlet of the temperature control machine, and the first liquid outlet is connected to the second liquid inlet of the second temperature control pipe;

[0013] The second liquid outlet of the second temperature control pipeline is connected to the liquid return port of the temperature control machine.

[0014] In an optional embodiment, the temperature control machine, the first temperature control pipe and the second temperature control pipe form a temperature control loop, and there is a temperature control medium in the temperature control loop. The temperature control machine is used to heat or cool the temperature control medium according to the temperature of the ink in the nozzle detected by the temperature sensor.

[0015] In an optional embodiment, the temperature control device further comprises: a heat sink;

[0016] The heat sink is arranged between the second temperature control pipe and the nozzle board.

[0017] In an optional embodiment, the first temperature control pipe is arranged between adjacent ink cartridges, and the side surfaces of the first temperature control pipe are in contact with the outer side surfaces of the adjacent ink cartridges.

[0018] In an optional embodiment, the first temperature control pipe and the ink cartridge are of equal length.

[0019] In an optional implementation, the first temperature control pipe and the second temperature control pipe are both water cooling plates.

[0020] The technical solution provided by the utility model has the following technical effects:

[0021] The embodiment of the utility model can realize temperature control of the ink in the ink cartridge by setting the first temperature control pipe on the outer surface of the ink cartridge, and can realize temperature control of the nozzle board by setting the second temperature control pipe on the surface of the nozzle board. The first temperature control pipe and the second temperature control pipe are connected to each other, and the temperature control of the ink in the ink cartridge and the nozzle board can be realized at the same time. The temperature sensor set in the nozzle can detect the temperature of the ink in the nozzle, and the temperature controller can heat and cool based on the temperature of the ink in the nozzle, and adjust the temperature of the temperature control medium flowing through the liquid outlet of the temperature controller, which can be suitable for different external temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of a temperature control device according to an embodiment of the utility model;

[0024] Figure 2 is a schematic structural diagram of another temperature control device according to an embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of the connection between the first temperature control pipeline and the second temperature control pipeline according to an embodiment of the utility model;

[0026] The reference numerals in the accompanying drawings are: 11, first temperature control pipeline, 12, second temperature control pipeline, 13, temperature sensor, 14, temperature controller, 15, ink cartridge, 16, nozzle board, 17, heat sink. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Figure 1 It is a structural schematic diagram of a temperature control device according to an embodiment of the utility model.

[0032] like Figure 1 As shown, a temperature control device provided in an embodiment of the utility model is applied to a printing machine, the printing machine includes an ink cartridge and a nozzle card, the nozzle card is provided with a nozzle, and the temperature control device includes:

[0033] A first temperature control pipe 11 , a second temperature control pipe 12 , a temperature sensor 13 and a temperature control machine 14 .

[0034] The first temperature control pipe is arranged on the outer surface of the ink cartridge 15. The second temperature control pipe 12 is arranged on the surface of the nozzle board 16. The first temperature control pipe 11 and the second temperature control pipe 12 are in communication.

[0035] The temperature sensor 13 is disposed in the nozzle and connected to the temperature controller 14 to detect the temperature of the ink in the nozzle.

[0036] The liquid outlet of the temperature control machine 14 is connected to the first temperature control pipeline 11 , and the liquid return port of the temperature control machine 14 is connected to the second temperature control pipeline 12 .

[0037] In this embodiment, the temperature control machine 14, the first temperature control pipe 11 and the second temperature control pipe 12 can form a temperature control loop, in which there is a temperature control medium. The temperature control machine 14 can be used to heat or cool the temperature control medium according to the temperature of the ink in the nozzle detected by the temperature sensor.

[0038] In this embodiment, the temperature sensor 13 is arranged in the nozzle to detect the temperature of the ink in the nozzle. The temperature sensor 13 is connected to the temperature controller 14. The temperature controller 14 can obtain the temperature of the ink in the nozzle detected by the temperature sensor 13. Based on the detected temperature of the ink in the nozzle and the type of ink in the nozzle, it can be judged whether the temperature of the ink in the nozzle is in the range of the best working temperature corresponding to the ink type. The temperature controller 14 can heat or cool according to the temperature of the ink in the nozzle detected by the temperature sensor 13 and the range of the best working temperature corresponding to the ink type. Considering that the range of the best working temperature corresponding to the ink is generally 28-32°C, the temperature of the nozzle board 16 will be around 60°C when it is working, and the temperature difference is quite large. At the same time, the temperature control medium in the temperature control circuit first flows through the first temperature control pipe 11 and then flows through the second temperature control pipe 12. Therefore, no matter whether the first temperature control pipe 11 heats or cools the ink in the ink cartridge 15, the second temperature control pipe 12 always cools the nozzle board 16.

[0039] In this embodiment, there is no specific limitation on the type of printing machine to which the temperature control device is applied. As an example, the printing machine to which the temperature control device is applied may be a digital printing machine.

[0040] In this embodiment, as an example, when the printing machine to which the temperature control device is applied is in working state, the temperature control device is also in working state, the temperature sensor 13 continuously detects the temperature of the ink in the nozzle, and the temperature control machine 14 heats or cools based on the temperature of the ink in the nozzle detected by the temperature sensor 13 and the optimal working temperature range corresponding to the ink type, adjusts the temperature of the temperature control medium, and performs temperature control on the ink in the ink cartridge 15 and the nozzle board 16, so that the temperature of the ink in the nozzle is in the optimal working temperature range, and the nozzle board 16 can be dissipated and cooled to ensure the working performance of the nozzle board 16 and improve the printing effect of the printing machine to which the temperature control device is applied.

[0041] In this embodiment, as an example, the temperature sensor 13 can also be arranged on the surface or periphery of the nozzle board 16 to detect the surface or periphery temperature of the nozzle board 16. The surface or periphery temperature of the nozzle board 16 can be used as the working temperature of the nozzle board 16. The temperature controller 14 can be connected to the temperature sensor 13 arranged in the nozzle, and can also be connected to the temperature sensor 13 arranged on the surface or periphery of the nozzle board 16.

[0042] The temperature control machine 14 can heat or cool based on the temperature of the ink in the nozzle detected by the temperature sensor 13 or the temperature of the nozzle board 16 when it is working, and adjust the temperature of the temperature control medium, so that the first temperature control pipe 11 controls the ink in the ink cartridge 15, and the second temperature control pipe 12 controls the temperature of the nozzle board 16. When the temperature of the ink in the nozzle is not in the optimal working temperature range corresponding to the ink type, or when the temperature of the nozzle board 16 when it is working is greater than the preset value, the temperature control machine 14 heats or cools to adjust the temperature of the temperature control medium. The preset value can be set and modified according to actual needs.

[0043] As an example, the temperature control medium may be a liquid, specifically pure water, distilled water, automotive coolant, cooling oil, etc. Considering that the heat exchange efficiency of gas is low, the gas consumption for temperature control by gas is very large and the cost is high, so the utility model does not use gas as the temperature control medium.

[0044] In an optional embodiment, the first temperature control pipe 11 is provided with a first liquid inlet and a first liquid outlet, and the second temperature control pipe 12 is provided with a second liquid inlet and a second liquid outlet.

[0045] The first liquid inlet of the first temperature control pipe 11 is connected to the liquid outlet of the temperature control machine 14 , and the first liquid outlet is connected to the second liquid inlet of the second temperature control pipe 12 .

[0046] The second liquid outlet of the second temperature control pipe 12 is connected to the liquid return port of the temperature control machine 14 .

[0047] In this embodiment, the temperature control medium flows out from the liquid outlet of the temperature control machine 14, flows through the first liquid inlet of the first temperature control pipe 11, the first liquid outlet of the first temperature control pipe 11, the second liquid inlet of the second temperature control pipe 12, the second liquid outlet of the second temperature control pipe 12, and the return liquid port of the temperature control machine 14 to form a temperature control circuit.

[0048] Figure 2 is a schematic diagram of the structure of another temperature control device according to an embodiment of the utility model. In an optional implementation, as Figure 2 As shown, the temperature control device further includes: a heat sink 17.

[0049] The heat sink 17 is disposed between the second temperature control pipe 12 and the nozzle board 16 .

[0050] In this embodiment, the heat sink 17 may be a metal plate. As an example, the heat sink 17 is a copper plate.

[0051] In this embodiment, the heat sink 17 is disposed between the second temperature control pipe 12 and the nozzle board 16. The heat sink 17 can be disposed on the surface of the nozzle board 16, and the side of the nozzle board 16 provided with the heat sink 17 can be closely fixed to the surface of the second temperature control pipe 12. The heat sink 17 can realize the cold and heat exchange between the nozzle board 16 and the second temperature control pipe 12, and realize the temperature control of the nozzle board 16. The heat sink 17 can also separate the nozzle board 16 from the second temperature control pipe 12 to prevent the second temperature control pipe 12 from being damaged or broken, thereby damaging the nozzle board 16.

[0052] As an example, the heat sink 17 can be specifically set at the portion of the surface of the nozzle board 16 where no nozzle is set. The portion of the surface of the nozzle board 16 where no nozzle is set can be used as the heat dissipation portion of the nozzle board 16. The heat sink 17 can be specifically set at the heat dissipation portion of the nozzle board 16.

[0053] In an optional implementation, as an example, the first temperature control pipe 11 may be disposed between adjacent ink cartridges, and the side surfaces of the first temperature control pipe 11 are in contact with the outer side surfaces of the adjacent ink cartridges.

[0054] As another example, the first temperature control pipe 11 may also surround and cover the outer surface of the ink cartridge 15 .

[0055] In an optional embodiment, the first temperature control pipe 11 and the ink cartridge 15 are of equal length.

[0056] In this embodiment, the length of the second temperature control pipe 12 is greater than or equal to the length of the nozzle board 16 .

[0057] In an optional implementation, the first temperature control pipe 11 and the second temperature control pipe 12 are both water-cooled plates.

[0058] In this embodiment, as an example, the first temperature control pipe 11 and the second temperature control pipe 12 can both be aluminum profile water cooling plates. The temperature control medium flowing through the first temperature control pipe 11 (aluminum profile water cooling plate) is directed to the second temperature control pipe 12 (aluminum profile water cooling plate), so that the ink is kept at a constant temperature while the printhead board is cooled.

[0059] In the present invention, the temperature control device includes at least one first temperature control pipe and at least one second temperature control pipe. As an example, each of the at least one first temperature control pipe is connected to a second temperature control pipe.

[0060] As another example, each of the at least one first temperature-controlled pipes may be connected in sequence, wherein one first temperature-controlled pipe is connected to at least one second temperature-controlled pipe. Figure 3 Schematic diagram of the connection between the first temperature control pipeline and the second temperature control pipeline according to an embodiment of the utility model, as shown in Figure 3 As shown, the temperature control device includes 4 first temperature control pipes and 4 second temperature control pipes. The 4 first temperature control pipes are connected in sequence, wherein 1 first temperature control pipe is connected to 2 second temperature control pipes respectively, and among the 4 second temperature control pipes, except for the 2 second temperature control pipes connected to the first temperature control pipes, the remaining 2 second temperature control pipes can be connected to the second temperature control pipes adjacent thereto.

[0061] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention of the utility model.

Claims

1. A temperature control device, applied to a printing machine, the printing machine comprising an ink cartridge and a nozzle card, the nozzle card being provided with a nozzle, characterized in that: The temperature control device comprises: A first temperature control pipeline, a second temperature control pipeline, a temperature sensor and a temperature control machine; The first temperature control pipeline is arranged on the outer surface of the ink cartridge; the second temperature control pipeline is arranged on the surface of the nozzle board; the first temperature control pipeline and the second temperature control pipeline are connected; The temperature sensor is arranged in the nozzle and connected to the temperature controller to detect the temperature of the ink in the nozzle; The liquid outlet of the temperature control machine is connected to the first temperature control pipeline, and the liquid return port of the temperature control machine is connected to the second temperature control pipeline.

2. The device according to claim 1, characterized in that The first temperature control pipe is provided with a first liquid inlet and a first liquid outlet; the second temperature control pipe is provided with a second liquid inlet and a second liquid outlet; The first liquid inlet of the first temperature control pipe is connected to the liquid outlet of the temperature control machine, and the first liquid outlet is connected to the second liquid inlet of the second temperature control pipe; The second liquid outlet of the second temperature control pipeline is connected to the liquid return port of the temperature control machine.

3. The device according to claim 1 or 2, characterized in that: The temperature control machine, the first temperature control pipe and the second temperature control pipe form a temperature control loop. There is a temperature control medium in the temperature control loop. The temperature control machine is used to heat or cool the temperature control medium according to the temperature of the ink in the nozzle detected by the temperature sensor.

4. The device according to claim 1, characterized in that Also includes: Heat sink; The heat sink is arranged between the second temperature control pipe and the nozzle board.

5. The device according to claim 1, characterized in that The first temperature control pipe is arranged between adjacent ink cartridges, and the side surfaces of the first temperature control pipe are in contact with the outer side surfaces of the adjacent ink cartridges.

6. The device according to claim 1, characterized in that The first temperature control pipe and the ink cartridge are of equal length.

7. The device according to claim 1, characterized in that The first temperature control pipe and the second temperature control pipe are both water cooling plates.

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