Temperature control device of digital printing head

Abstract

The utility model provides a temperature control device of a digital printing head, the printing head comprises an upper ink guide plate and a lower ink guide plate, an accommodating space is arranged between the upper ink guide plate and the lower ink guide plate, the temperature control device comprises a water cooling box, the water cooling box comprises a water cooling box body and a bottom plate arranged at the bottom of the water cooling box body, and the bottom plate is provided with a water inlet and a water outlet. The water cooling box body and the bottom plate are contained in the containing space, a water cooling channel is formed in the lower surface of the water cooling box body, the water cooling box body is further provided with a water outlet and a water inlet, the two ends of the water cooling channel are communicated with the water outlet and the water inlet respectively, the bottom of the water cooling channel is covered with the bottom plate, and the bottom plate is arranged in the containing space. And the water cooling channel is closed. The design of the water cooling channel enables cooling water to take away heat continuously, compared with a natural heat dissipation mode, the heat dissipation efficiency is greatly improved, and it is ensured that the printing head works stably at the proper temperature.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and more specifically, to a temperature control device for a digital printhead. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] With the widespread application of digital printing technology, such as in advertising inkjet printing, textile printing, and 3D printing, the requirements for printhead stability and printing accuracy are increasing. Traditional digital printheads generate a large amount of heat during printing, and early printheads often relied on natural cooling or simple air cooling methods, which were ineffective in dissipating the heat quickly and efficiently. This resulted in the printhead remaining at a high temperature for extended periods, causing changes in ink viscosity and consequently affecting ink ejection performance.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a temperature control device for a digital printhead.

[0006] To solve the above-mentioned technical problems, this utility model provides a temperature control device for a digital printhead. The printhead includes an upper ink guide plate and a lower ink guide plate, with a receiving space between the upper and lower ink guide plates. The temperature control device includes a water-cooled box, which includes a water-cooled box body and a bottom plate located at the bottom of the water-cooled box body. The water-cooled box body and the bottom plate are housed within the receiving space. A water-cooling channel is formed on the lower surface of the water-cooled box body. The water-cooled box body also has a water outlet and a water inlet. The two ends of the water-cooling channel are respectively connected to the water outlet and the water inlet. The bottom plate covers the bottom of the water-cooling channel, sealing the water-cooling channel.

[0007] Preferably, the water-cooling channel is a serpentine channel that bends back and forth.

[0008] Preferably, the outlet is connected to a cooling water outlet pipe, the inlet is connected to a cooling water inlet pipe, the cooling water outlet pipe and the cooling water inlet pipe are connected to the pump body, and the pump body is used to control the cooling water circulation.

[0009] Preferably, the water-cooled box body is further provided with heat sinks, which are located outside the receiving space.

[0010] Preferably, the temperature control device further includes a heating element, which includes a heating rod, and the lower ink guide plate has an installation channel in which the heating rod is installed.

[0011] Preferably, the printhead further includes a protective shell, which is installed on the upper side of the upper ink guide plate, and the ink sac of the printhead is enclosed within the protective shell.

[0012] Preferably, the protective shell has heat dissipation holes on its side wall, and a cooling fan is installed on the inner wall of the protective shell. The cooling fan is located at the position of the heat dissipation holes and is used to dissipate the heat inside the protective shell to the outside of the protective shell through the heat dissipation holes.

[0013] Preferably, the temperature control device further includes a temperature controller, which is used to control the pump and cooling fan to start when the internal temperature of the protective shell is greater than the maximum set temperature, and to control the heating element to start when the internal temperature of the protective shell is less than the minimum set temperature.

[0014] Preferably, the water-cooled box is made of aluminum, the upper and lower ink guide plates are made of graphite, and the cooling water inlet and outlet pipes are made of silicone.

[0015] Based on the above technical solution, the beneficial effects of this utility model are as follows:

[0016] This invention relates to a temperature control device for a digital printhead. During printing, the printhead continuously generates heat, which, if not dissipated in time, can affect print quality or even damage the printhead. The water-cooling channel design allows cooling water to continuously remove heat, significantly improving heat dissipation efficiency compared to natural cooling methods and ensuring stable operation of the printhead at a suitable temperature. Attached Figure Description

[0017] Figure 1 This is a partial structural diagram of the digital printhead of this utility model.

[0018] Figure 2 This is a schematic diagram of the heat dissipation device for the digital printhead of this utility model.

[0019] Figure 3 This is a partial structural diagram of the heat dissipation device for the digital printhead of this utility model.

[0020] Figure 4 This is a partial exploded view of the digital printhead of this utility model.

[0021] Figure 5This is a schematic diagram of the structure of the digital printhead of this utility model.

[0022] Figure 6 This is a partial structural diagram of the digital printhead of this utility model.

[0023] Figure 7 This is a partial structural schematic diagram of the heating element of this utility model.

[0024] The components are as follows: 11. Cooling water inlet pipe; 12. Cooling water outlet pipe; 2. Ink outlet pipe; 3. Ink cartridge; 4. Water-cooled box; 5. Upper ink guide plate; 6. Lower ink guide plate; 41. Water outlet; 42. Water inlet; 43. Water-cooled box body; 44. Heat sink; 45. Base plate; 46. Water cooling channel; 7. Protective shell; 71. Heat dissipation hole; 8. Cooling fan; 9. Heating element; 91. Heating rod; 92. Heating wire. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] like Figure 1-7As shown, this utility model provides a temperature control device for a digital printhead. The printhead includes an upper ink guide plate 5 and a lower ink guide plate 6, with a receiving space between them. The temperature control device includes a water-cooled box 4, which includes a water-cooled box body 43 and a bottom plate 45 located at the bottom of the body 43. The body 43 and the bottom plate 45 are housed within the receiving space. A water-cooling channel 46 is formed on the lower surface of the body 43. The body 43 also has a water outlet 41 and a water inlet 42. The two ends of the water-cooling channel 46 are connected to the water outlet 41 and the water inlet 42, respectively. The bottom plate 45 covers the bottom of the water-cooling channel 46, sealing it. The water-cooled box is made of aluminum. The upper ink guide plate 5 and the lower ink guide plate 6 are made of graphite. The water-cooling channel 46 is a serpentine channel with back-and-forth bends. The serpentine channel design improves the heat dissipation efficiency of the water cooling system by increasing the heat dissipation area, enhancing heat dissipation uniformity, and improving coolant flow. The outlet 41 is connected to a cooling water outlet pipe 12, and the inlet 42 is connected to a cooling water inlet pipe 11. The cooling water outlet pipe 12 and the cooling water inlet pipe 11 are connected to the pump body, which controls the cooling water circulation. The cooling water inlet pipe 11 and the cooling water outlet pipe 12 are flexible hoses made of silicone material. Figure 1 As shown, the water-cooled box body 43 is also provided with heat sink 44, which is located outside the accommodating space.

[0028] like Figure 6 and 7 As shown, the temperature control device further includes a heating element 9, which includes a heating rod 91. The lower ink guide plate 6 has an installation channel, and the heating rod 91 is installed in the installation channel. The printhead also includes a protective shell 7, which is installed on the upper side of the upper ink guide plate 5, and the ink sac 3 of the printhead is surrounded within the protective shell 7.

[0029] like Figure 5 As shown, the protective shell 7 has heat dissipation holes 71 on its side wall, and a cooling fan 8 is installed on the inner wall of the protective shell 7. The cooling fan 8 is located at the position of the heat dissipation holes 71, and the cooling fan 8 is used to dissipate the heat inside the protective shell 7 to the outside of the protective shell 7 through the heat dissipation holes 71.

[0030] The temperature control device also includes a temperature controller (not shown in the figure). The temperature controller activates the pump and cooling fan 8 when the internal temperature of the protective shell 7 exceeds the maximum set temperature, and activates the heating element 9 when the internal temperature of the protective shell 7 is below the minimum set temperature. The introduction of the temperature controller enables intelligent and automated temperature management, maintaining the printhead temperature between 25°C and 35°C, effectively preventing overheating and overcooling, improving printing efficiency, and making it suitable for high-precision, high-intensity printing applications.

[0031] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A temperature control device for a digital printing head, the printing head comprising an upper ink guide plate and a lower ink guide plate, the upper ink guide plate and the lower ink guide plate having a receiving space therebetween, characterized in that the temperature control device comprising a water cooling box, the water cooling box comprising a water cooling box body and a bottom plate arranged at the bottom of the water cooling box body, the water cooling box body and the bottom plate being received in the receiving space, a water cooling channel being formed in the lower surface of the water cooling box body, the water cooling box body further comprising a water outlet and a water inlet, the two ends of the water cooling channel being connected to the water outlet and the water inlet respectively, the bottom plate covering the bottom of the water cooling channel to seal the water cooling channel.

2. The temperature control device of claim 1, wherein The water cooling channel is a serpentine channel.

3. The temperature control device of claim 1, wherein, The water outlet is connected to a cooling outlet pipe, and the water inlet is connected to a cooling inlet pipe, the cooling outlet pipe and the cooling inlet pipe being connected to a pump body, the pump body being used to control the circulation of cooling water.

4. The temperature control device of claim 3, wherein The water cooling box body further comprises a heat sink, the heat sink being located outside the receiving space.

5. The temperature control device of claim 4, wherein, The temperature control device further comprises a heating element, the heating element comprising a heating rod, the lower ink guide plate comprising an installation channel, and the heating rod being installed in the installation channel.

6. The temperature control device of claim 5, wherein, The printing head further comprises a protective shell, the protective shell being installed on the upper side of the upper ink guide plate, and the ink sac of the printing head being enclosed in the protective shell.

7. The temperature control device of claim 6, wherein, The side wall of the protective shell comprises a heat dissipation hole, and the inner wall of the protective shell further comprises a heat dissipation fan, the heat dissipation fan being located at the position of the heat dissipation hole, and the heat dissipation fan being used to dissipate the heat in the protective shell to the outside of the protective shell through the heat dissipation hole.

8. The temperature control device of claim 7, wherein, The temperature control device further comprises a temperature controller, the temperature controller being used to control the pump body and the heat dissipation fan to start when the temperature inside the protective shell is greater than a maximum set temperature, and the temperature controller being used to control the heating element to start when the temperature inside the protective shell is less than a minimum set temperature.

9. The temperature control device of claim 7, wherein, The water cooling box is made of aluminum, the upper ink guide plate and the lower ink guide plate are made of graphite, and the cooling inlet pipe and the cooling outlet pipe are made of silica gel.

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