Ink-jet printer nozzle heating mechanism

Abstract

The utility model discloses a heating mechanism for a nozzle of an ink-jet printer. The heating mechanism comprises a primary heating mechanism, a secondary heating mechanism and an anti-condensation mechanism which are sequentially connected between an ink conveying pipe and a nozzle main body of the ink-jet printer, and the second-stage heating mechanism comprises a second box body, and an upper confluence cavity, a water heating assembly and a lower confluence cavity are arranged in the second box body from top to bottom. According to the scheme, the two stages of heating mechanisms are arranged, the wavy ink holes are formed in the heating block of the first-stage heating mechanism, the flow channel length of ink is increased, the preheating time of the ink is prolonged, and heating is more uniform through multi-hole arrangement; the second-stage heating mechanism is provided with a water heating mechanism, a plurality of thin ink pipes with the diameter smaller than that of the wave-shaped ink holes are used for heating, the heating speed can be increased more quickly, and the water heating mechanism is used, so that the temperature can be kept basically constant more easily; and in addition, an anti-condensation mechanism is arranged, so that condensation and precipitation of the ink can be effectively prevented, the ink is more uniform, and the code spraying effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet printer structures, and particularly relates to an inkjet printer nozzle heating mechanism. Background Art

[0002] The ink used in an inkjet printer needs to be used at a certain temperature. If the ambient temperature is too low, the fluidity of the ink will decrease, seriously affecting the use of the inkjet printer. Currently, in order to control the temperature rise of the ink, a nozzle heating mechanism is usually provided. However, when the currently used nozzle heating mechanism heats the ink, there are generally problems such as uneven heating and slow speed, which need to be further improved. Summary of the Utility Model

[0003] Aiming at the technical problems pointed out in the background art, the purpose of the utility model is to provide an inkjet printer nozzle heating mechanism.

[0004] To achieve the purpose of the utility model, the technical solutions provided by the utility model are as follows:

[0005] An inkjet printer nozzle heating mechanism includes a primary heating mechanism, a secondary heating mechanism, and an anti-condensation mechanism that are sequentially connected between an ink delivery pipe and the main body of the inkjet printer nozzle;

[0006] The primary heating mechanism includes a first box body. The upper end of the first box body is connected to the ink delivery pipe. Inside the first box body, a transition cavity and an electric heating block are sequentially arranged from top to bottom. A plurality of wavy ink holes are longitudinally arranged in the electric heating block. The upper end of the wavy ink hole is communicated with the transition cavity, and the lower end is communicated with the secondary heating mechanism;

[0007] The secondary heating mechanism includes a second box body. The upper end of the second box body is communicated with the first box body. Inside the second box body, an upper confluence cavity, a water heating component, and a lower confluence cavity are sequentially arranged from top to bottom. The water heating component includes an upper fixing plate and a lower fixing plate that are spaced apart up and down. A water heating cavity is formed between them, and they are communicated by a plurality of thin ink pipes arranged at equal intervals. A circulating hot water for heating the thin ink pipes is arranged in the water heating cavity; the lower confluence cavity is communicated with the anti-condensation mechanism;

[0008] The anti-condensation mechanism includes a third box body. A rotatable rotating rod is horizontally arranged inside the third box body. A plurality of blades are arranged on the rotating rod. One end of the rotating rod passes through the side wall of the third box body and is rotatably connected to the third box body. The part located outside the third box body is provided with a driven gear ring. A servo motor is arranged outside the third box body. The output shaft of the servo motor is connected with a driving gear, and the driving gear is in transmission connection with the driven gear ring; the lower end of the third box body is communicated with the main body of the inkjet printer nozzle.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The solution of this application is provided with a two-stage heating mechanism. A wavy ink hole is arranged on the heating block of the primary heating mechanism, which increases the flow path length of the ink, improves the preheating time of the ink, and through the porous arrangement, the heating is more uniform; the secondary heating mechanism is provided with a water heating mechanism. By using a plurality of thin ink tubes with a diameter smaller than that of the wavy ink hole for heating, the heating rate can be increased more quickly, and by using a water heating structure, it is easier to keep the temperature basically constant; in addition, an anti-condensation mechanism is provided, which can effectively prevent the condensation and precipitation of the ink, and make the ink more uniform, resulting in a better inkjet coding effect. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the heating mechanism provided by an embodiment of this application;

[0012] In the figure, the ink delivery pipe 1, the heating rod 2, the wavy ink hole 3, the electric heating block 4, the first ink passing hole 5, the second box body 6, the circulating water outlet pipe 7, the second ink passing hole 8, the driven gear ring 9, the servo motor 10, the inkjet printer nozzle body 11, the transition cavity 12, the ink injection hole 13, the third box body 14, the rotating rod 15, the heat insulation layer 16, the water heating cavity 17, the circulating water inlet pipe 18, the first box body 19, the thin ink tube 20, the water heat preservation cavity 21, the upper fixing plate 22, the lower fixing plate 24;

[0013] Figure 2 It is a schematic top view structural diagram of the heating block provided by an embodiment of this application;

[0014] In the figure, the heating rod hole 23. Detailed Embodiments

[0015] The following combines the drawings in the embodiments of the present utility model to clearly and completely describe the technical solutions 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 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 belong to the scope of protection of the present utility model.

[0016] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it should not be construed as a limitation to the present utility model.

[0017] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. It can refer to direct connection or indirect connection. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0018] Embodiment

[0019] This embodiment provides an inkjet printer nozzle heating mechanism, which includes a primary heating mechanism, a secondary heating mechanism, and an anti-condensation mechanism that are sequentially connected between an ink delivery pipe 1 and an inkjet printer nozzle body 11.

[0020] The primary heating mechanism includes a first box body 19. The upper end of the first box body 19 is connected to the ink delivery pipe 1. Inside the first box body 19, a transition cavity 12 and an electric heating block 4 are sequentially arranged from top to bottom. Inside the electric heating block 4, a plurality of wavy ink holes 3 are longitudinally arranged. The upper end of the wavy ink holes 3 communicates with the transition cavity 12, and the lower end communicates with the secondary heating mechanism.

[0021] Among them, it should be noted that the heating structure on the electric heating block can adopt the structure in the known technology. For example, a heating rod hole 23 is provided on the electric heating block, a heating rod 2 is arranged inside the heating rod hole, and the heating rod is connected to a power source, etc.

[0022] The secondary heating mechanism includes a second box body 6. The upper end of the second box body 6 communicates with the first box body 19. Inside the second box body 6, an upper confluence cavity, a water heating component, and a lower confluence cavity are sequentially arranged from top to bottom. The water heating component includes an upper fixing plate 22 and a lower fixing plate 24 that are spaced apart up and down. A water heating cavity 17 is formed between them, and they are connected by a plurality of thin ink pipes 20 arranged at equal intervals. A circulating hot water for heating the thin ink pipes 20 is arranged inside the water heating cavity 17. The lower confluence cavity communicates with the anti-condensation mechanism.

[0023] The anti-condensation mechanism includes a third box body 14. A rotatable rotating rod 15 is horizontally arranged in the third box body 14. A plurality of blades are arranged on the rotating rod 15. One end of the rotating rod passes through the side wall of the third box body 14 and is rotatably connected to the side wall of the third box body 14. A driven gear ring 9 is arranged on the part of the rotating rod outside the third box body 14. A servo motor 10 is arranged outside the third box body 14. The output shaft of the servo motor 10 is connected with a driving gear. The driving gear is in transmission connection with the driven gear ring 9 and can drive the rotating rod to rotate. The lower end of the third box body 14 is communicated with the inkjet printer nozzle body 11.

[0024] It should be noted that the inkjet printer nozzle body adopts a structure of known technology.

[0025] The solution of this application provides a two-stage heating mechanism. A wavy ink hole is arranged on the heating block of the primary heating mechanism, which increases the flow path length of the ink, improves the preheating time of the ink, and through the porous arrangement, makes the heating more uniform. The secondary heating mechanism is provided with a water heating mechanism. By using a plurality of thin ink tubes with a diameter smaller than that of the wavy ink hole for heating, the heating rate can be increased more quickly, and by using a water heating structure, it is easier to keep the temperature basically constant. In addition, an anti-condensation mechanism is provided, which can effectively prevent the condensation and precipitation of the ink, and make the ink more uniform, resulting in a better inkjet effect.

[0026] In a preferred embodiment, in order to improve the heating effect of the water heating cavity, an annular water heat preservation cavity 21 is arranged in the side wall of the second box body 6. One side of the water heat preservation cavity 21 and the water heating cavity 17 is communicated with a circulating water inlet pipe 18, and the other side is communicated with a circulating water outlet pipe 7. It should be noted that the circulating water inlet pipe 18 and the circulating water outlet pipe 7 are both connected to a water supply mechanism, and the water supply mechanism adopts a structure of known technology, such as including a water tank, a heater, a water pump and pipelines, etc., which will not be elaborated here.

[0027] In a preferred embodiment, in order to improve the ink heat preservation effect in the anti-condensation mechanism, a heat preservation layer 16 is arranged on the outer side of the side wall of the third box body.

[0028] In a preferred embodiment, a communication structure between the first box body and the second box body is provided. The first box body 19 and the second box body 6 are communicated through a first ink passing hole 5 penetrating through both of them.

[0029] In a preferred embodiment, a communication structure between the second box body and the third box body is provided. The second box body 6 and the third box body 14 are communicated through a second ink passing hole 8 penetrating through both of them.

[0030] In a preferred embodiment, a communication structure between a third box body and a main body of an inkjet printer nozzle is provided. The lower end of the third box body 14 is provided with a connection to the main body 11 of the inkjet printer nozzle through an ink injection hole 13.

[0031] It should be noted that for the structures not described in detail in the solution of this application, the solutions of well-known technologies are adopted.

[0032] Finally, it should be noted that the above embodiments are only used for exemplifying and explaining the present invention, and are not intended to limit the present invention to the scope of the described embodiments. In addition, those skilled in the art can understand that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of protection required by the present invention.

Claims

1. A nozzle heating mechanism for an inkjet printer, characterized in that: It comprises a primary heating mechanism, a secondary heating mechanism and an anti-condensation mechanism which are sequentially connected between an ink delivery tube (1) and a printer nozzle body (11); The primary heating mechanism comprises a first box (19), the upper end of the first box (19) is connected to an ink delivery tube (1), a transition chamber (12) and an electric heating block (4) are sequentially arranged in the first box (19) from top to bottom, a plurality of wavy ink holes (3) are longitudinally arranged in the electric heating block (4), the upper ends of the wavy ink holes (3) are connected to the transition chamber (12), and the lower ends are connected to the secondary heating mechanism; The secondary heating mechanism comprises a second box (6), the upper end of the second box (6) is connected to the first box (19), an upper confluence chamber, a water heating component and a lower confluence chamber are arranged in sequence from top to bottom in the second box (6), the water heating component comprises an upper fixing plate (22) and a lower fixing plate (24) arranged at intervals from top to bottom, a water heating chamber (17) is formed between the upper fixing plate and the lower fixing plate, and the upper fixing plate and the lower fixing plate are connected via a plurality of thin ink tubes (20) arranged at even intervals, and circulating hot water for heating the thin ink tubes (20) is arranged in the water heating chamber (17); the lower confluence chamber is connected to the anti-condensation mechanism; The anti-condensation mechanism comprises a third box (14), a rotatable rotating rod (15) is transversely arranged in the third box (14), a plurality of blades are arranged on the rotating rod (15), one end of the rotating rod passes through the side wall of the third box (14) and is rotatably connected to the third box (14), a driven gear ring (9) is arranged on the part located outside the third box (14), a servo motor (10) is arranged outside the third box (14), an output shaft of the servo motor (10) is connected to a driving gear, and the driving gear is transmission-connected to the driven gear ring (9); the lower end of the third box (14) is connected to a nozzle body (11) of the inkjet printer.

2. The inkjet printer nozzle heating mechanism according to claim 1, characterized in that: An annular water heat preservation chamber (21) is provided in the side wall of the second box body (6); one side of the water heat preservation chamber (21) and the water heating chamber (17) are both connected to the circulating water inlet pipe (18), and the other side is connected to the circulating water outlet pipe (7).

3. The inkjet printer nozzle heating mechanism according to claim 1, characterized in that: A heat-insulating layer (16) is arranged on the outer side of the side wall of the third box.

4. The inkjet printer nozzle heating mechanism according to claim 1, characterized in that: The first box (19) and the second box (6) are connected via a first ink hole (5) that passes through both.

5. The inkjet printer nozzle heating mechanism according to claim 1, characterized in that: The second box (6) and the third box (14) are connected via a second ink hole (8) that runs through both.

6. The inkjet printer nozzle heating mechanism according to claim 1, characterized in that: The lower end of the third box (14) is provided with an ink injection hole (13) which is connected to the inkjet printer nozzle body (11).

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