Quick-release nozzle assembly for small-character ink-jet printer

Abstract

The utility model relates to a quick-release nozzle assembly for a small character inkjet printer, which comprises a nozzle conversion module and a header pipe conversion module, the nozzle conversion module comprises a nozzle conversion block, the nozzle conversion block is constructed into a cavity structure, and a first liquid channel, an elastic sheet circuit board group and a high-voltage line female head are connected in the cavity. The nozzle conversion block is provided with a first wire passing hole; the header pipe conversion module comprises a header pipe conversion block matched with the spray head conversion block in shape, the header pipe conversion block is detachably connected to the spray head conversion block, the header pipe conversion block is constructed to be of a cavity structure, and a second liquid channel combined with the first liquid channel, a soldering lug circuit board set and a high-voltage line male head are connected in the cavity; and the header pipe conversion block is provided with a second wire passing hole. According to the utility model, the nozzle and the header pipe are respectively arranged as independent modules, so that when the nozzle of the small character machine breaks down, the nozzle header pipe assembly does not need to be replaced, only the independent modules need to be replaced, and quick disassembly and assembly can be realized through detachable matching between the two conversion blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of small character inkjet printers, and particularly to a quick-disassembly nozzle assembly for a small character inkjet printer. Background Art

[0002] The small character inkjet printer, also known as the continuous inkjet printer, i.e., the CIJ inkjet printer, mainly consists of parts such as a nozzle, a main pipe, an ink path system, and a machine case. Most of the existing nozzles of small character inkjet printers and the nozzle main pipes form an integral structure. In some use environments with severe dust, the nozzles of the inkjet printers are prone to failures. Since the pipelines and circuits in the main pipe of the inkjet printer are directly connected or welded to the nozzle valve plate and the front nozzle plate, the nozzle cannot be disassembled and replaced separately, and only the nozzle main pipe can be replaced together. The replacement steps are cumbersome and the cost is high. Content of the Utility Model

[0003] The purpose of the utility model is to provide a quick-disassembly nozzle assembly for a small character inkjet printer, which can solve the technical problems mentioned in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A quick-disassembly nozzle assembly for a small character inkjet printer includes a nozzle conversion module and a main pipe conversion module. The nozzle conversion module includes a nozzle conversion block, which is configured as a cavity structure. Inside the cavity, a first liquid channel, a shrapnel circuit board group, and a high-voltage female head are connected. The nozzle conversion block is provided with a first wire passing hole. The main pipe conversion module includes a main pipe conversion block that is adapted to the shape of the nozzle conversion block. The main pipe conversion block is detachably connected to the nozzle conversion block and is configured as a cavity structure. Inside the cavity, a second liquid channel combined with the first liquid channel, a solder pad circuit board group, and a high-voltage male head are connected. The main pipe conversion block is provided with a second wire passing hole.

[0005] In a preferred implementation, a first installation base is provided inside the cavity of the nozzle conversion block, and the first liquid channel is configured as a plurality of through channels provided on the first installation base. A second installation base is provided inside the cavity of the main pipe conversion block, and the second liquid channel is configured as a plurality of through channels provided on the second installation base.

[0006] In a preferred implementation, the second liquid channel protrudes from the surface of the second installation base on the side facing the nozzle conversion block to form a protruding pipeline, and the outer diameter of the protruding pipeline is adapted to the inner diameter of the first liquid channel.

[0007] In a preferred embodiment, the elastic sheet circuit board group includes a first elastic sheet circuit board and a second elastic sheet circuit board respectively arranged on both sides of the first mounting base, and the solder tab circuit board group includes a first solder tab circuit board and a second solder tab circuit board respectively arranged on both sides of the second mounting base.

[0008] In a preferred embodiment, there are two groups of high-voltage female connectors, which are respectively arranged on the other two sides of the first mounting base, and the position of the high-voltage male connector corresponds to that of the high-voltage female connector.

[0009] In a preferred embodiment, both the first mounting base and the second mounting base are configured as a T-shaped structure, and liquid channels are distributed on both the horizontal end and the vertical end of the T-shaped structure.

[0010] In a preferred embodiment, a gasket is also connected between the first mounting base and the second mounting base.

[0011] In a preferred embodiment, a sealing positioning post is also connected to one side of the gasket, and corresponding sealing positioning holes are provided on the first mounting base or the second mounting base.

[0012] On the other hand, the present utility model also provides a technical solution for a small character inkjet printer, including the quick-release nozzle assembly described in any of the above solutions.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: the quick-release nozzle assembly for the small character inkjet printer provided by the present utility model sets the nozzle and the main pipe as separate modules respectively by adding a conversion block structure. When the nozzle of the small character machine fails, there is no need to replace the nozzle main pipe assembly, and only the separate module needs to be replaced. Through the detachable cooperation between the two conversion blocks, quick disassembly and assembly can be achieved; through the elastic sheet circuit board group and the solder tab circuit board group arranged on the two conversion blocks, the signal and power supply conduction problems generated when replacing the nozzle alone can also be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cooperation of the quick-release nozzle assembly, the inkjet printer main pipe, and the inkjet printer nozzle in the embodiment of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the nozzle conversion module in the embodiment of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the nozzle conversion module from another angle in the embodiment of the present utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the main pipe conversion module in the embodiment of the present utility model;

[0018] Figure 5 Schematic diagram of the structure of the main pipe conversion module from another angle in the embodiment of the present utility model;

[0019] Figure 6 Schematic diagram of the structure of the gasket in the embodiment of the present utility model.

[0020] The meanings of each label in the figure are as follows:

[0021] 1. Sprayer head main body; 2. Sprayer head conversion module; 21. Sprayer head conversion block; 22. First liquid channel; 23. Elastic sheet circuit board group; 24. High-voltage wire female head; 25. First installation base; 26. First wire passing hole; 3. Main pipe main body; 4. Main pipe conversion module; 41. Main pipe conversion block; 42. Second liquid channel; 421. Convex pipeline; 43. Solder sheet circuit board group; 44. High-voltage wire male head; 45. Second installation base; 46. Second wire passing hole; 5. Pipe joint; 6. Gasket; 61. Sealing positioning column; 7. Sealing positioning hole; 8. Block positioning column; 9. Block positioning hole. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0024] Refer to Figure 1 , this embodiment discloses a quick-disassembly sprayer head assembly for a small-character inkjet printer. The inkjet printer sprayer head is connected to the inkjet printer main pipe through this assembly, and the quick disassembly and assembly of the inkjet printer sprayer head and the main pipe can be realized through this assembly.

[0025] The quick-disassembly sprayer head assembly includes a sprayer head conversion module 2 for connecting to the sprayer head main body 1 of the inkjet printer and a main pipe conversion module 4 for connecting to the inkjet printer main pipe main body 3, and the sprayer head conversion module 2 is detachably connected to the main pipe conversion module 4.

[0026] Combined with Figure 2 and Figure 4 , the nozzle conversion module 2 includes a nozzle conversion block 21. In this embodiment, the nozzle conversion block 21 is configured as a rectangular cavity enclosed by a housing, and it is detachably connected to the nozzle body 1 by bolts. Inside the cavity of the nozzle conversion block 21, a first liquid channel 22, a shrapnel circuit board group 23, and a high-voltage female head 24 are connected. The main pipe conversion module 4 includes a main pipe conversion block 41, which is also configured as a rectangular cavity enclosed by a housing. The main pipe conversion block 41 is detachably connected to the main pipe body 3 by bolts. Inside the cavity of the main pipe conversion block 41, a second liquid channel 42, a solder pad circuit board group 43, and a high-voltage male head 44 are connected. The shapes of the nozzle conversion block 21 and the main pipe conversion block 41 are adapted to each other, and the two are tightly connected by bolts, and the two cavities are connected to each other. The first liquid channel 22 and the second liquid channel 42 are joined to form a connected liquid channel.

[0027] See Figure 2 、 Figure 3 , specifically, a first mounting base 25 is fixedly provided in the cavity of the nozzle conversion block 21. The first mounting base 25 is arranged along the height direction of the cavity of the nozzle conversion block 21. The first liquid channel 22 is configured as a plurality of through channels provided on the first mounting base 25. On the side of the first liquid channel 22 facing the nozzle body 1, a plurality of pipe joints 5 are correspondingly connected. The liquid pipeline of the nozzle body 1 is joined through the pipe joints 5. Preferably, at least two sets of tower-shaped annular protrusions are provided at both ends of the pipe joint 5, and the outer diameter of the annular protrusion is slightly larger than the inner diameter of the channel or pipeline with which it cooperates. This structure can make the pipe joint 5 tightly fit into the cooperating channel to enhance the connection sealing performance. It can be understood that the pipe joint 5 or the structure cooperating with it should be made of elastic material to ensure the embeddability of the annular protrusion.

[0028] The shrapnel circuit board group 23 includes a first shrapnel circuit board and a second shrapnel circuit board. The two shrapnel circuit boards are respectively arranged on both sides of the first mounting base 25. There are two groups of high-voltage female heads 24, which are respectively arranged on the other two sides of the first mounting base 25. Such an arrangement can make more reasonable use of the space in the cavity and is also convenient for circuit layout. Correspondingly, the nozzle conversion block 21 is also provided with a first wire passing hole 26 for the wire to pass through. During application, first pass the wire in the nozzle body 1 through the first wire passing hole 26, then weld the wire to the first shrapnel circuit board and the second shrapnel circuit board in sequence, where the positive and negative high-voltage wires are welded to the high-voltage female head 24, and then use bolts to connect the two shrapnel circuit boards to the nozzle conversion block 21.

[0029] See Figure 4 、 Figure 5, a second mounting base 45 is fixedly installed in the cavity of the main pipe conversion block 41. The second mounting base 45 is arranged along the height direction of the cavity of the main pipe conversion block 41. The second liquid channel 42 is configured as a plurality of through channels arranged on the second mounting base 45. On the side facing the main pipe body 3, the second liquid channel 42 is correspondingly connected with a plurality of pipe connectors 5, and is joined to the liquid pipeline of the main pipe body 3 through the pipe connectors 5. The structure of the pipe connector 5 is the same as that of the pipe connector 5 installed in the aforementioned nozzle conversion module 2, and will not be elaborated here.

[0030] In this embodiment, on the side facing the nozzle conversion block 21, the second liquid channel 42 protrudes from the surface of the second mounting base 45 to form a protruding pipeline 421. The outer diameter of the protruding pipeline 421 is adapted to the inner diameter of the first liquid channel 22. When the first liquid channel 22 and the second liquid channel 42 are joined, the protruding pipeline 421 is inserted into the first liquid channel 22. This structure can not only make the alignment of the two faster and more accurate, but also strengthen the sealing performance between the two.

[0031] See Figure 6 , in this embodiment, a gasket 6 is also connected between the first mounting base 25 and the second mounting base 45 to ensure the sealing performance of the connection and prevent liquid leakage. To prevent the gasket 6 from shifting, a sealing positioning post 61 is connected to one side of the gasket 6, and the first mounting base 25 or the second mounting base 45 is provided with a corresponding sealing positioning hole 7.

[0032] The solder pad circuit board group 43 includes a first solder pad circuit board and a second solder pad circuit board. The two solder pad circuit boards are respectively arranged on both sides of the second mounting base 45. There are two groups of high-voltage male connectors 44, which are respectively arranged on the other two sides of the second mounting base 45 and correspond to the positions of the high-voltage female connectors 24. Correspondingly, the main pipe conversion block 41 is also provided with a second wire passing hole 46 for the wire to pass through. During application, first pass the wire in the main pipe body 3 through the second wire passing hole 46, and then weld it to the first solder pad circuit board and the second solder pad circuit board in sequence. Among them, the positive and negative high-voltage wires are welded to the high-voltage male connectors 44, and then use bolts to connect the two solder pad circuit boards to the main pipe conversion block 41.

[0033] Preferably, both the first mounting base 25 and the second mounting base 45 are configured as T-shaped structures. Liquid channels are distributed on both the horizontal end and the vertical end of the T-shaped structure. The multi-directional distribution of the liquid channels is more convenient for matching with the main pipe bodies 3 and nozzle bodies 1 of different models. At the same time, one end of the T-shaped structure corresponds to the position of the wire passing hole, and the corresponding wire passing hole is divided into two parts, which is more conducive to the orderly arrangement of the wire harness.

[0034] For the convenience of the quick and accurate docking of the main pipe conversion block 41 and the nozzle conversion block 21, the nozzle conversion block 21 is also connected with a block positioning column 8 on the side facing the main pipe conversion block 41, and the main pipe conversion block 41 is provided with a block positioning hole 9 that cooperates with it.

[0035] The quick-release nozzle assembly for the small-character inkjet printer provided in this embodiment sets the nozzle and the main pipe as separate modules respectively by adding a conversion block structure. When the nozzle of the small-character printer fails, there is no need to replace the nozzle main pipe assembly, and only the separate module needs to be replaced; through the elastic sheet circuit board group 23 and the solder tab circuit board group arranged on the two conversion blocks, the signal and power supply conduction problems generated when replacing the nozzle alone can also be solved.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release nozzle assembly for a small-character inkjet printer, characterized in that, Comprising: A nozzle conversion module (2), including a nozzle conversion block (21), the nozzle conversion block (21) being configured as a cavity structure, with a first liquid channel (22), a shrapnel circuit board group (23), and a high-voltage female head (24) connected inside the cavity. The nozzle conversion block (21) is provided with a first wire passing hole (26); A main pipe conversion module (4), including a main pipe conversion block (41) adapted to the shape of the nozzle conversion block (21), the main pipe conversion block (41) being detachably connected to the nozzle conversion block (21). The main pipe conversion block (41) is configured as a cavity structure, with a second liquid channel (42) combined with the first liquid channel (22), a solder pad circuit board group (43), and a high-voltage male head (44) connected inside the cavity. The main pipe conversion block (41) is provided with a second wire passing hole (46).

2. The quick-release nozzle assembly for a small-character inkjet printer according to claim 1, characterized in that, A first mounting base (25) is provided inside the cavity of the nozzle conversion block (21), and the first liquid channel (22) is configured as a number of through channels provided on the first mounting base (25); a second mounting base (45) is provided inside the cavity of the main pipe conversion block (41), and the second liquid channel (42) is configured as a number of through channels provided on the second mounting base (45).

3. The quick-release nozzle assembly for a small character inkjet printer according to claim 2, characterized in that, The second liquid channel (42) protrudes from the surface of the second mounting base (45) on the side facing the nozzle conversion block (21) to form a protruding pipeline (421), and the outer diameter of the protruding pipeline (421) is adapted to the inner diameter of the first liquid channel (22).

4. The quick-release nozzle assembly for a small-character inkjet printer according to claim 2, wherein, The shrapnel circuit board group (23) includes a first shrapnel circuit board and a second shrapnel circuit board respectively arranged on both sides of the first mounting base (25), and the solder pad circuit board group (43) includes a first solder pad circuit board and a second solder pad circuit board respectively arranged on both sides of the second mounting base (45).

5. The quick-release nozzle assembly for a small-character inkjet printer according to claim 4, characterized in that, There are two groups of the high-voltage female heads (24), which are respectively arranged on the other two sides of the first mounting base (25), and the position of the high-voltage male head (44) corresponds to that of the high-voltage female head (24).

6. The quick-release nozzle assembly for a small-character inkjet printer according to claim 2, wherein, Both the first mounting base (25) and the second mounting base (45) are configured as T-shaped structures, and liquid channels are distributed on both the horizontal end and the vertical end of the T-shaped structure.

7. The quick-release nozzle assembly for a small-character inkjet printer according to claim 2, wherein, A gasket (6) is also connected between the first mounting base (25) and the second mounting base (45).

8. The quick-release nozzle assembly for a small-character inkjet printer according to claim 7, wherein A sealing positioning post (61) is also connected to one side of the gasket (6), and a corresponding sealing positioning hole (7) is provided on the first mounting base (25) or the second mounting base (45).

9. A small character inkjet printer, characterized in that, Including the quick-release nozzle assembly according to any one of claims 1-8.

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