Nozzle heat dissipation device and ink-jet printing equipment

Abstract

The utility model belongs to the technical field of code spraying and printing, solves the technical problems of short circuit or complex structure and high cost caused by a nozzle heat dissipation technology in the prior art, and provides a novel nozzle heat dissipation device and ink-jet printing equipment, the nozzle heat dissipation device comprises a main body and an ink outlet unit installed at the bottom of the main body; the circuit mechanism is mounted on the side wall of the main body and is used for driving the ink outlet unit to perform code spraying and printing; the heat removal mechanism is installed on the side wall of the main body and used for removing heat generated by the circuit mechanism, the circuit mechanism is installed on the side wall of the main body, meanwhile, the heat removal mechanism is arranged on the side wall for removing heat, the heat can be removed out of the main body in time without influencing a circuit, and the heat removal structure is simple in structure and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet printing, in particular to a nozzle heat dissipation device and inkjet printing equipment. Background Art

[0002] With the development of inkjet technology, the demand for high-speed, efficient and high-quality printing is increasing. In order to meet the high-speed, efficient and high-quality printing requirements, the nozzle array of the inkjet printing equipment will be increased during inkjet printing. However, due to the high heat generation of the nozzle and the nozzle drive circuit, the increase in nozzle nozzles will cause greater heat in the nozzle. If the heat in the nozzle is not eliminated in time, it will seriously affect the stability of the ink and circuit, thereby causing the problem of unstable inkjet. In the prior art, cold air technology or water cooling technology is used to eliminate the heat in the nozzle, but the use of air cooling technology is likely to cause the ink to enter the internal circuits and components of the trolley to form a short circuit, but the water cooling system is relatively complex and costly. Therefore, it is urgent to design a nozzle and driver board installation method that can dissipate heat well without affecting the stability of the equipment. Utility Model Content

[0003] In view of this, the embodiments of the present invention provide a nozzle heat dissipation device and an inkjet printing device to solve the technical problems that the existing nozzle heat dissipation technology causes the nozzle circuit to short-circuit or causes the nozzle structure to be difficult to repair.

[0004] In a first aspect, an embodiment of the utility model provides a nozzle heat dissipation device, the nozzle heat dissipation device comprising:

[0005] A main body, and an ink outlet unit installed at the bottom of the main body;

[0006] A circuit mechanism, installed on the side wall of the main body, for driving the ink outlet unit to perform inkjet printing;

[0007] The heat dissipation mechanism is installed on the side wall of the main body and is used for dissipating the heat generated by the circuit mechanism.

[0008] Preferably, the circuit mechanism includes a first circuit unit installed on a first side wall, and a second circuit unit installed on a second side wall opposite to the first side wall.

[0009] Preferably, the circuit mechanism comprises a main control unit, and the main control unit is suspended and installed in the main body.

[0010] Preferably, the heat dissipation mechanism includes a first heat dissipation unit and a second heat dissipation unit, the first heat dissipation unit is installed on the first side wall, and the second heat dissipation unit is installed on the second side wall.

[0011] Preferably, the first heat dissipation unit is installed on the outer wall of the first side wall, and the first circuit unit is installed inside the same position of the first side wall; the second heat dissipation unit is installed on the outer wall of the second side wall, and the second circuit unit is installed inside the same position of the second side wall.

[0012] Preferably, the relative direction of the first side wall and the second side wall is the main scanning direction of the ink outlet unit.

[0013] Preferably, the nozzle heat dissipation device is a sealing structure for preventing dust from entering the nozzle heat dissipation device.

[0014] Preferably, an opening and closing unit is provided on the top of the main body.

[0015] Preferably, a plurality of ink outlet units are arranged at the bottom of the main body.

[0016] In a second aspect, an embodiment of the utility model provides an inkjet printing device, which includes a plurality of nozzle heat dissipation devices as described in the first aspect above.

[0017] In summary, the beneficial effects of the utility model are as follows:

[0018] The nozzle heat dissipation device and inkjet printing equipment provided by the embodiment of the utility model, by arranging the circuit mechanism and the heat dissipation mechanism on the side wall of the main body, can discharge the heat generated by the circuit mechanism out of the main body in time, while ensuring the stability of the circuit and ink. At the same time, the nozzle heat dissipation device provided by the utility model has a simple structure and is easy to install in the early stage and maintain in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment of the utility model will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the utility model.

[0020] Figure 1 A schematic diagram of the structure of the nozzle heat dissipation device provided in Example 1 of the utility model;

[0021] Figure 2 A schematic diagram of the top view of the structure of the nozzle heat dissipation device provided in Example 1 of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the inkjet printing device provided in Example 2 of the utility model.

[0023] Parts and numbers in the figure: 1. main body; 11. bottom; 12. first side wall; 13. second side wall; 2. ink outlet unit; 31. first heat dissipation unit; 32. second heat dissipation unit; 41. first circuit unit; 42. second circuit unit. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of this (utility model or utility model), it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the application 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 a restriction to this (utility model or utility model). Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the statement "includes..." do not exclude the presence of other identical elements in the process, method, article or equipment including the elements. If there is no conflict, the various features in the embodiments and embodiments of the present (utility model or utility model) can be combined with each other, all within the scope of protection of the present (utility model or utility model).

[0025] Example 1

[0026] See also Figure 1 , an embodiment of the present invention provides a nozzle heat dissipation device, the nozzle heat dissipation device comprising:

[0027] A main body 1, and an ink outlet unit 2 installed at a bottom 11 of the main body 1;

[0028] A circuit mechanism, installed on the side wall of the main body 1, for driving the ink outlet unit 2 to perform inkjet printing;

[0029] The heat dissipation mechanism is installed on the side wall of the main body 1 and is used to dissipate the heat generated by the circuit mechanism.

[0030] Specifically, the bottom 11 of the main body 1 faces the surface of the substrate to be printed during inkjet printing, and the ink outlet unit 2 sprays ink onto the surface of the substrate to form an image.

[0031] The circuit mechanism is installed on the side wall of the main body 1, which reduces the space of the circuit mechanism in the main body 1. At the same time, the circuit mechanism can be divided into multiple units and installed on the side walls of the main body 1 respectively, which solves the problem of large space occupation and untimely heat dissipation caused by the circuit components and circuit board blocks being arranged as a whole in the prior art.

[0032] At the same time, a discharge mechanism is provided on the side wall of the main body 1, which can timely dissipate the heat generated by the circuit mechanism installed on the side wall out of the main body 1, thereby ensuring the temperature inside the main body 1 and avoiding the instability of the circuit and ink due to high temperature. At the same time, it also avoids the ink solidification due to high temperature that clogs the nozzle installed at the bottom 11 of the main body 1, thereby affecting the printing quality and shortening the life of the nozzle.

[0033] In this embodiment, the circuit mechanism and the heat dissipation mechanism are arranged on the side wall of the main body 1, so that the heat generated by the circuit mechanism is discharged out of the main body 1 in time, thereby ensuring the stability of the circuit and the ink. At the same time, the nozzle heat dissipation device provided by the utility model has a simple structure and is easy to install in the early stage and maintain in the later stage.

[0034] In one embodiment, the circuit mechanism includes a first circuit unit 41 installed on the first side wall 12 , and a second circuit unit 42 installed on the second side wall 13 opposite to the first side wall 12 .

[0035] Specifically, the circuit mechanism in the nozzle is divided into a first circuit unit 41 and a second circuit unit 42, which are respectively installed on the first side wall 12 and the second side wall 13 of the main body 1, so that the heat generated by the circuit can be timely discharged out of the main body 1 through the heat dissipation mechanism on the side wall, thereby avoiding the temperature rise in the main body 1. At the same time, the circuit mechanism is divided into the first circuit unit 41 and the second circuit unit 42 and installed on different side walls, which can effectively save the volume of the main body 1.

[0036] In one embodiment, when printing, in order to meet the printing requirements, when multiple nozzles are added, the circuit structure will be designed to be more complex and huge. In order to protect the circuit structure, the volume of the main body 1 will also become larger, occupying a larger space, which is not conducive to installation and inkjet printing. According to the printing requirements, the circuit structure can be divided into a number of circuit units for installation, and the specific number is not limited. This avoids the problem of installing all circuits and circuit components on the same circuit board, resulting in a large space occupation and difficulty in heat dissipation.

[0037] In one embodiment, the circuit mechanism includes a main control unit, and the main control unit is suspended and installed in the main body 1.

[0038] Specifically, in order to realize inkjet printing of the nozzle, the prior art generally sets the main control unit and the circuit on one board, which makes the circuit board huge and complicated. In this embodiment, the circuit board in the circuit mechanism is split into multiple circuit units according to the printing requirements, and the main control unit for controlling the nozzle and the circuit is also split separately, installed inside the main body 1, and suspended through the side wall of the main body 1 or the top of the main body 1. The heat generated by the main control unit will also be discharged outside the main body 1 through the heat dissipation mechanism.

[0039] Separating the circuit unit that generates a lot of heat from the main control unit that generates less heat can prevent the heat of the circuit unit from affecting the operation of components on the main control unit, thereby preventing damage to the components of the main control unit and increasing costs.

[0040] At the same time, the circuit structure is split into multiple circuit units and a main control unit, so that when a problem occurs in a circuit unit or a main control unit, it can be discovered in time for repair or replacement, avoiding the need to replace or repair the entire circuit board block when a problem occurs in a certain place.

[0041] In one embodiment, the heat dissipation mechanism is provided with only one heat dissipation unit which is installed on the side wall to discharge heat to the outside.

[0042] The heat dissipation unit is a heat dissipation tooth installed on a side wall and can be used when the circuit mechanism generates less heat or generates heat more slowly.

[0043] In one embodiment, the heat dissipation mechanism includes a first heat dissipation unit 31 and a second heat dissipation unit 32 . The first heat dissipation unit 31 is installed on the first side wall 12 , and the second heat dissipation unit 32 is installed on the second side wall 13 .

[0044] Specifically, when the heat dissipation mechanism includes a heat dissipation unit installed on the first side wall 12 and a heat dissipation unit installed on the second side wall 13, the heat generated by the first circuit unit 41 can be timely discharged through the first heat dissipation unit 31, and similarly, the second heat dissipation unit 32 can timely discharge the heat of the second circuit unit 42 to avoid the temperature rise in the main body 1. The first side wall 12 and the second side wall 13 are arranged relative to each other, so that the installation space of the heat dissipation mechanism and the circuit mechanism installed thereon is sufficient.

[0045] In one embodiment, the first heat dissipation unit 31 is installed on the outer wall of the first side wall 12, and the first circuit unit 41 is installed inside the same position of the first side wall 12; the second heat dissipation unit 32 is installed on the outer wall of the second side wall 13, and the second circuit unit 42 is installed inside the same position of the second side wall 13.

[0046] Specifically, the first circuit unit 41 and the first heat dissipation unit 31 are respectively installed at the inner and outer positions of the same position of the first side wall 12, so that the first heat dissipation unit 31 can timely discharge the heat generated by the first circuit unit 41. Similarly, the second circuit unit 42 and the second heat dissipation unit 32 are respectively installed at the inner and outer positions of the same position of the second side wall 13.

[0047] In one embodiment, if Figure 2 As shown, the relative direction of the first side wall 12 and the second side wall 13 is the main scanning direction of the ink outlet unit 2 .

[0048] Specifically, Figure 2 As shown, the main scanning direction is the direction in which the nozzle performs inkjet coverage scanning printing, and the sub-scanning direction is the stepping direction in which the nozzle moves to the next printing area after completing printing of the previous printing area.

[0049] When the nozzle moves back and forth in the main scanning direction, the moving nozzle causes air to flow, and then flows into the main body 1 or is discharged by the heat exhaust mechanism, taking the heat in the main body 1 out and dissipating it into the external environment, keeping the temperature in the main body 1 low.

[0050] In one embodiment, the nozzle heat dissipation device is a sealing structure for preventing dust from entering the nozzle heat dissipation device.

[0051] Specifically, the nozzle heat dissipation device is sealed except for the heat dissipation mechanism to prevent dust, impurities and the like in the external environment from entering the main body 1 and affecting the normal operation of the electronic components in the main body 1 or affecting the ink discharge of the nozzle.

[0052] At the same time, the heat dissipation mechanism uses heat dissipation teeth to dissipate heat outwards, and will not bring dust, impurities and other substances into the main body 1.

[0053] In one embodiment, an opening and closing unit is disposed on the top of the main body 1 .

[0054] Specifically, an opening and closing unit of the main body 1 is provided at the top position corresponding to the bottom 11 of the main body 1. When inkjet printing is performed, the opening and closing unit is closed. When installing or performing later maintenance, the operator can open the opening and closing unit to repair, replace, or clean the circuit units, circuit connecting lines, main control units, ink paths, etc. in the circuit structure inside the main body 1, so as to facilitate the installation and maintenance of the nozzle heat dissipation device.

[0055] The utility model divides the circuit mechanism for driving the nozzle to perform inkjet printing into multiple circuit units and a main control unit to prevent the heat generated on the circuit unit from damaging the main control unit. The circuit unit that generates a lot of heat is installed on the side wall, and a heat dissipation mechanism for dissipating heat is installed on the side wall. The heat generated by the circuit unit can be promptly discharged from the main body 1, thereby ensuring the stability of the circuit and ink in the main body 1, so that the nozzle can perform normal inkjet printing.

[0056] The circuit mechanism and the heat dissipation mechanism are arranged on the side wall in the main scanning direction, so that the airflow generated by the nozzle during inkjet printing can flow quickly in the main body 1 and dissipate heat in time. The main control unit is installed in the main body 1, and the flowing airflow flows through the main control unit to bring the heat out of the main body 1.

[0057] The nozzle heat dissipation device provided in the present embodiment has a simple structure and rapid heat dissipation. The faster the nozzle moves, the faster the air flows in the main body 1, and the large amount of heat generated by the rapid operation of the nozzle is quickly brought out of the main body 1. That is, the working speed of the nozzle and the working efficiency of the heat dissipation mechanism can be in a certain proportional relationship, thereby ensuring the stability of the temperature in the main body 1 and ensuring the stable operation of the circuit, electronic components and ink. The nozzle heat dissipation device provided in the present embodiment has a simple structure, and different circuit mechanisms and heat dissipation mechanisms can be set according to the number of installed nozzles, and can be split into a simple circuit unit and a main control unit, which can dissipate heat in time and facilitate installation and maintenance.

[0058] Example 2

[0059] See also Figure 3 An embodiment of the present invention provides an inkjet printing device, which includes several nozzle heat dissipation devices described in Example 1.

[0060] The inkjet printing device provided in the embodiment includes several nozzle heat dissipation devices, which have a simple structure and rapid heat dissipation. The faster the nozzle moves, the faster the air flows in the main body 1, and the large amount of heat generated by the rapid operation of the nozzle is quickly brought out of the main body 1. That is, the working speed of the nozzle and the working efficiency of the heat dissipation mechanism can be in a certain proportional relationship, ensuring the stability of the temperature in the main body 1 and ensuring the stable operation of the circuit, electronic components and ink. The nozzle heat dissipation device provided in this embodiment has a simple structure, and different circuit mechanisms and heat dissipation mechanisms can be set according to the number of installed nozzles, and it can be split into a simple circuit unit and a main control unit, which can dissipate heat in time and facilitate installation and maintenance.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention (utility model or utility model) rather than to limit it. Although the present utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present utility model.

Claims

1. A nozzle heat dissipation device, characterized in that: The nozzle heat dissipation device comprises: A main body, and an ink outlet unit installed at the bottom of the main body; A circuit mechanism, installed on the side wall of the main body, for driving the ink outlet unit to perform inkjet printing; The heat dissipation mechanism is installed on the side wall of the main body and is used for dissipating the heat generated by the circuit mechanism.

2. The nozzle heat dissipation device according to claim 1, characterized in that: The circuit mechanism includes a first circuit unit installed on a first side wall, and a second circuit unit installed on a second side wall opposite to the first side wall.

3. The nozzle heat dissipation device according to claim 2, characterized in that: The circuit mechanism comprises a main control unit, and the main control unit is suspended and installed in the main body.

4. The nozzle heat dissipation device according to any one of claims 2 or 3, characterized in that: The heat dissipation mechanism includes a first heat dissipation unit and a second heat dissipation unit. The first heat dissipation unit is installed on the first side wall, and the second heat dissipation unit is installed on the second side wall.

5. The nozzle heat dissipation device according to claim 4, characterized in that: The first heat dissipation unit is installed on the outer wall of the first side wall, and the first circuit unit is installed inside the same position of the first side wall; the second heat dissipation unit is installed on the outer wall of the second side wall, and the second circuit unit is installed inside the same position of the second side wall.

6. The nozzle heat dissipation device according to claim 5, characterized in that: The relative direction between the first side wall and the second side wall is the main scanning direction of the ink outlet unit.

7. The nozzle heat dissipation device according to claim 6, characterized in that: The nozzle heat dissipation device is a sealing structure, which is used to prevent dust from entering the nozzle heat dissipation device.

8. The nozzle heat dissipation device according to claim 7, characterized in that: An opening and closing unit is arranged on the top of the main body.

9. The nozzle heat dissipation device according to any one of claims 5 to 7, characterized in that: A plurality of ink outlet units are arranged at the bottom of the main body.

10. An inkjet printing device, characterized in that: The device comprises a plurality of nozzle heat dissipation devices as claimed in any one of claims 1 to 9.

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