Printing machine nozzle structure and ink-jet printing machine

Abstract

The utility model provides a printing machine nozzle structure and an ink jet printing machine, and relates to the technical field of jet printing equipment, the printing machine nozzle structure comprises an ink jet assembly, a cleaning mechanism and a displacement mechanism; the ink jet assembly comprises a mounting plate and a plurality of sprayers, a plurality of mounting grooves are formed in the mounting plate, the sprayers are provided with nozzles, the nozzles are arranged in the mounting grooves, and the length of the nozzles is smaller than the thickness of the mounting grooves; the cleaning mechanism is arranged on one side below the spray head assembly, and the cleaning position of the cleaning mechanism faces the mounting plate and the spray head; the displacement mechanism is in transmission connection with the nozzle assembly or the cleaning mechanism, and the driving direction of the displacement mechanism is the horizontal direction. The nozzle is contracted in the mounting groove, the nozzle and the mounting plate form an embedded structure, and the nozzle cannot be scratched by the outside in the process of cleaning and drying the nozzle, so that the nozzle is protected.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printing equipment technology, and more specifically, to a printing machine printhead structure and an inkjet printing machine. Background Technology

[0002] An inkjet printer is a device that uses inkjet printing technology to print on textiles or other materials. It is widely used in clothing, home furnishings, advertising materials and other fields, and has the advantages of high efficiency, flexibility and environmental friendliness.

[0003] Inkjet printers spray ink into a substrate as tiny droplets through printheads. A printhead typically consists of multiple nozzles, each capable of precisely controlling the amount and location of ink sprayed. The substrate (such as fabric or paper) moves within the machine via a conveyor belt or roller system, ensuring the ink is evenly distributed in the desired areas. After inkjet printing, the substrate usually requires drying and curing to ensure the ink adheres firmly. This can be achieved through methods such as hot air drying, infrared heating, or ultraviolet curing.

[0004] However, after inkjet printing is finished, the nozzles of the printhead need to be cleaned and maintained. In the existing technology, the nozzles are often cleaned by spraying and then wiping manually or by spraying and drying, which can easily damage the printhead. Utility Model Content

[0005] The purpose of this utility model is to provide a printing machine nozzle structure to alleviate the technical problem that the nozzle is easily damaged when cleaning it by spraying and then manually wiping or spraying and drying.

[0006] This utility model provides a printhead structure for a printing machine, including: an inkjet assembly, a cleaning mechanism, and a displacement mechanism; the inkjet assembly includes a mounting plate and multiple printheads, the mounting plate is provided with multiple mounting grooves, each printhead has a nozzle, the nozzle is disposed in the mounting groove, and the length of the nozzle is less than the thickness of the mounting groove; the cleaning mechanism is disposed on one side below the printhead assembly, and the cleaning position of the cleaning mechanism faces the mounting plate and the printheads; the displacement mechanism is drively connected to the printhead assembly or the cleaning mechanism, and the driving direction of the displacement mechanism is horizontal.

[0007] Furthermore, the cleaning mechanism includes a spray assembly and a suction assembly; the spray assembly is used to spray cleaning liquid onto the nozzle; the suction assembly is used to suction the cleaning liquid from the surface of the nozzle; the spray assembly and the suction assembly are spaced apart along the moving direction of the displacement mechanism.

[0008] Furthermore, a squeegee is provided at the end of the suction assembly away from the spray assembly; the height of the squeegee is greater than the height of the suction assembly, and the squeegee is used to abut against the bottom surface of the mounting plate to scrape off the washing liquid.

[0009] Furthermore, the suction assembly includes a plurality of suction holes; the suction holes are used to suck up residual washing liquid, and the plurality of suction holes are spaced apart along the arrangement direction of the nozzle.

[0010] Furthermore, the cleaning mechanism includes a mounting base; the mounting base is provided with a groove; the spray assembly is located on the side of the groove near the inkjet assembly, the suction hole is located in the groove, and the wiper is located at the end of the groove away from the inkjet assembly.

[0011] Furthermore, the suction assembly also includes a negative pressure pump; the output end of the negative pressure pump is connected to the suction port.

[0012] Furthermore, the nozzle has spray holes; the spray holes are used to spray washing liquid, and a plurality of the spray holes are evenly and spaced apart on the surface of the spray assembly.

[0013] Furthermore, the spray assembly also includes a booster pump; the output end of the booster pump is connected to the spray hole.

[0014] Furthermore, the cleaning mechanism also includes a lifting assembly; the moving end of the lifting assembly is connected to the inkjet assembly via a transmission connection.

[0015] The purpose of this utility model is also to provide an inkjet printer, including the provided printer nozzle structure.

[0016] Beneficial effects:

[0017] The printing machine printhead structure provided by this utility model includes an inkjet assembly, a cleaning mechanism, and a displacement mechanism. The inkjet assembly includes a mounting plate and multiple printheads. The mounting plate is provided with multiple mounting grooves. Each printhead has a nozzle, which is located in the mounting groove. The length of the nozzle is less than the thickness of the mounting groove. The cleaning mechanism is located on one side below the printhead assembly, and the cleaning position of the cleaning mechanism faces the mounting plate and the printheads. The displacement mechanism is connected to the printhead assembly or the cleaning mechanism in a driving direction, which is horizontal.

[0018] Specifically, in this invention, the printhead is set in the mounting groove of the mounting plate, and the nozzle is located inside the mounting groove. With the length of the nozzle being less than the thickness of the mounting groove, the nozzle retracts into the mounting groove, and the nozzle and the mounting plate form an embedded structure. When cleaning the inkjet assembly, the displacement mechanism drives the printhead assembly or cleaning mechanism to move, so that the nozzle and the mounting plate can be opposite to the cleaning mechanism. The cleaning mechanism cleans the nozzle. Since the nozzle retracts into the mounting groove, the nozzle will not be scratched by the outside during the cleaning and drying process, thus protecting the printhead. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the printing machine nozzle structure provided in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the inkjet assembly in the printhead structure of a printing machine provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram illustrating the structural relationship between the nozzle and the mounting plate in the printhead structure of the printing machine provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the cleaning mechanism in the print head structure of the printing machine provided in an embodiment of the present utility model.

[0024] icon:

[0025] 100 - Inkjet assembly; 110 - Mounting plate; 120 - Printhead; 121 - Nozzle; 200 - Cleaning mechanism; 210 - Spray assembly; 220 - Suction assembly; 230 - Wiper; 240 - Mounting base; 241 - Groove; 300 - Displacement mechanism. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0033] See Figures 1 to 4 The printing machine printhead structure provided in this embodiment includes an inkjet assembly 100, a cleaning mechanism 200, and a displacement mechanism 300.

[0034] The inkjet assembly 100 includes a mounting plate 110 and multiple printheads 120. The mounting plate 110 has multiple mounting slots. Each printhead 120 has a nozzle 121 disposed within a mounting slot, and the length of the nozzle 121 is less than the thickness of the mounting slot. A cleaning mechanism 200 is located on one side below the printhead 120 assembly, with its cleaning position facing the mounting plate 110 and the printheads 120. A displacement mechanism 300 is drively connected to either the printhead 120 assembly or the cleaning mechanism 200, and the driving direction of the displacement mechanism 300 is horizontal.

[0035] Specifically, in this embodiment, the nozzle 120 is disposed in the mounting groove of the mounting plate 110, and the nozzle 121 is located in the mounting groove.

[0036] With the length of nozzle 121 less than the thickness of the mounting groove, nozzle 121 retracts into the mounting groove, forming an embedded structure with mounting plate 110. During cleaning of the inkjet assembly 100, displacement mechanism 300 moves printhead 120 assembly or cleaning mechanism 200, allowing nozzle 121 and mounting plate 110 to face the cleaning mechanism 200. The cleaning mechanism 200 then cleans nozzle 121. Because nozzle 121 retracts into the mounting groove, it is protected from external abrasion during cleaning and drying, thus protecting the printhead 120.

[0037] In this embodiment, the cleaning mechanism includes a spray assembly 210 and a suction assembly 220. The spray assembly 210 sprays cleaning solution onto the nozzle 120. The suction assembly 220 suctions cleaning solution from the surface of the nozzle 120. The spray assembly 210 and the suction assembly 220 are spaced apart along the moving direction of the displacement mechanism 300.

[0038] Specifically, in this embodiment, the spray assembly 210 can spray cleaning fluid onto the surfaces of the nozzle 120 and the mounting plate 110, thereby rinsing the nozzle 121 and the mounting plate 110. In this embodiment, each individual nozzle 120 can be connected to a separate pump to achieve pressurized spraying. Compared to a large-area spray structure, the smaller area of ​​individual nozzles 120 can further ensure the cleaning pressure of the cleaning fluid during rinsing, thus ensuring a more thorough cleaning effect.

[0039] Furthermore, the suction component 220 is positioned behind the spray component 210 along the moving direction of the displacement mechanism 300. In this configuration, the suction component 220 contacts the inkjet component 100 after the spray component 210 performs spraying. The suction component 220 is connected to a negative pressure device such as a negative pressure pump, so that the suction component 220 can use negative pressure to suction and remove residual liquid from the corresponding area. After spray cleaning, the washing liquid remaining on the mounting plate 110 and the nozzle 121 is sucked into the suction component 220 under the suction force generated by the negative pressure, preventing washing liquid residue from remaining on the surface of the mounting plate 110 and affecting the effect of the next inkjet printing.

[0040] In this embodiment, a wiper 230 is provided at the end of the suction assembly 220 that is away from the spray assembly 210. The height of the wiper 230 is greater than the height of the suction assembly 220, and the wiper 230 is used to abut against the bottom surface of the mounting plate 110 to scrape off the washing liquid.

[0041] Specifically, a wiper 230 is provided on the side of the suction assembly 220 away from the spray assembly 210. The height of the wiper 230 is greater than the height of the suction assembly 220, and the wiper 230 is used to abut against the bottom surface of the mounting plate 110 to scrape off residual washing liquid on the nozzle 120.

[0042] Furthermore, since the wiper 230 is located on the side of the suction assembly 220 away from the spray assembly 210, the wiper 230 can scrape off the cleaning liquid remaining on the bottom surface of the mounting plate 110 after suction cleaning. This allows the residual cleaning liquid to flow downwards along the side wall of the wiper 230 near the suction assembly 220, so that the suction assembly 220 can absorb the residual cleaning liquid, achieving a thorough cleaning of the mounting plate 110 with excellent cleaning effect.

[0043] In this embodiment, the suction assembly 220 includes a plurality of suction holes. The suction holes are used to suction residual washing liquid, and the plurality of suction holes are spaced apart along the arrangement direction of the nozzle 120.

[0044] Specifically, in this embodiment, multiple suction holes form suction areas of equal length to the mounting plate 110 in the same direction. During the relative movement of the inkjet assembly 100 and the cleaning mechanism 200 driven by the displacement mechanism 300, the multiple suction holes can comprehensively suction and clean the side of the mounting plate 110 opposite to the cleaning mechanism 200.

[0045] In this embodiment, the cleaning mechanism includes a mounting base 240. A groove 241 is provided on the mounting base 240. A spray assembly 210 is provided on the side of the groove 241 near the inkjet assembly 100, a suction hole is provided in the groove 241, and a wiper 230 is provided at the end of the groove 241 away from the inkjet assembly 100.

[0046] Specifically, in this embodiment, the spray assembly 210, the suction assembly 220, and the wiper 230 are all mounted on the mounting base 240. The spray assembly 210 is located on the side of the groove 241 near the inkjet assembly 100. When cleaning the mounting plate 110 and the printhead 120, the spray assembly 210 can first contact the mounting plate 110 and the printhead 120 to achieve rinsing.

[0047] After rinsing, the suction hole in the groove 241 draws the washing liquid from the mounting plate 110 and the nozzle 120. Combined with the scraper 230, the remaining washing liquid on the mounting plate 110 is scraped off and flows into the groove 241. The suction hole is located in the groove 241, forming an embedded structure with the top surface of the mounting base 240. The height of the suction hole opening is lower than the height of the scraper 230, preventing the suction hole from being too close to the mounting plate 110 and causing suction problems. Furthermore, this structure facilitates the scraper 230 in scraping the washing liquid into the tank, making it easier for the suction hole to draw it in.

[0048] Furthermore, in this embodiment, the wiper 230 can be used in conjunction with the embedded nozzle 121, which not only enables the wiping action, but also prevents the nozzle 121 from colliding or rubbing against the wiper 230 during the wiping process, thus avoiding damage to the nozzle 121. This achieves cleaning of the mounting plate 110 and the nozzle 121 while avoiding damage to the nozzle 121.

[0049] In this embodiment, the suction assembly 220 also includes a negative pressure pump. The output end of the negative pressure pump is connected to the suction port.

[0050] The suction assembly 220 is connected to a negative pressure device such as a negative pressure pump so that the suction assembly 220 can use negative pressure to suction and remove residual liquid in the corresponding area. After spray cleaning, the washing liquid left on the mounting plate 110 and nozzle 121 is sucked into the suction assembly 220 under the suction force generated by the negative pressure, so as to avoid washing liquid residue.

[0051] In this embodiment, the nozzle 121 has spray holes. The spray holes are used to spray washing liquid, and multiple spray holes are evenly and spaced apart on the surface of the spray assembly 210.

[0052] Specifically, in this embodiment, multiple spray holes form a rinsing area with the same length as the mounting plate 110 in the same direction. During the relative movement between the inkjet assembly 100 and the cleaning mechanism 200 driven by the displacement mechanism 300, the multiple spray holes can thoroughly rinse and clean the side of the mounting plate 110 opposite to the cleaning mechanism 200.

[0053] Furthermore, the spray assembly 210 also includes a booster pump. The output end of the booster pump is connected to the spray nozzle.

[0054] Specifically, a booster pump is a device used to increase fluid pressure. In this embodiment, the output end of the booster pump is connected to the spray hole, which can increase the rinsing pressure of the cleaning fluid, thereby increasing the rinsing force and ensuring the rinsing effect.

[0055] In this embodiment, the cleaning mechanism 200 further includes a lifting assembly. The movable end of the lifting assembly is connected to the inkjet assembly 100 via a transmission connection.

[0056] After the moving end of the lifting component is connected to the inkjet component 100, the lifting component can drive the inkjet component 100 to move vertically, thereby changing the height of the mounting plate 110 and the nozzle 121. When dealing with substrates of different thicknesses, the height of the mounting plate 110 and the nozzle 121 can be adjusted by the lifting component so that the nozzle 121 can print on substrates of different thicknesses, thereby improving the applicability of the printing machine printhead structure.

[0057] The inkjet printer provided in this embodiment includes a printer printhead structure.

[0058] In the printhead structure of the printing machine, the length of the nozzle 121 is less than the thickness of the mounting groove, and the nozzle 121 retracts into the mounting groove, forming an embedded structure with the mounting plate 110. During the cleaning of the inkjet assembly 100, the displacement mechanism 300 moves the printhead 120 assembly or the cleaning mechanism 200, allowing the nozzle 121 and mounting plate 110 to face the cleaning mechanism 200. The cleaning mechanism 200 then cleans the nozzle 121. Because the nozzle 121 retracts into the mounting groove, it is protected from external abrasion during the cleaning and drying process, thus protecting the printhead 120.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A printing machine nozzle structure, characterized in that, include: Inkjet assembly (100), cleaning mechanism (200), and displacement mechanism (300); The inkjet assembly (100) includes a mounting plate (110) and a plurality of printheads (120). The mounting plate (110) is provided with a plurality of mounting slots. The printheads (120) have nozzles (121) disposed in the mounting slots. The length of the nozzles (121) is less than the thickness of the mounting slots. The cleaning mechanism (200) is located on one side below the nozzle (120) assembly, and the cleaning position of the cleaning mechanism (200) faces the mounting plate (110) and the nozzle (120). The displacement mechanism (300) is connected to the nozzle (120) assembly or the cleaning mechanism (200) in a transmission connection, and the driving direction of the displacement mechanism (300) is horizontal.

2. The printing machine nozzle structure according to claim 1, characterized in that, The cleaning mechanism includes a spray assembly (210) and a suction assembly (220); The spray assembly (210) is used to spray washing liquid onto the nozzle (120); The suction assembly (220) is used to suction the washing liquid from the surface of the nozzle (120); The spray assembly (210) and the suction assembly (220) are spaced apart along the moving direction of the displacement mechanism (300).

3. The printing machine nozzle structure according to claim 2, characterized in that, The suction assembly (220) is provided with a wiper (230) at the end away from the spray assembly (210); The height of the wiper (230) is greater than the height of the suction assembly (220), and the wiper (230) is used to abut against the bottom surface of the mounting plate (110) to scrape off the washing liquid.

4. The printing machine nozzle structure according to claim 3, characterized in that, The suction assembly (220) includes multiple suction holes; The suction holes are used to draw in the residual washing liquid, and the plurality of suction holes are spaced apart along the arrangement direction of the nozzle (120).

5. The printing machine nozzle structure according to claim 4, characterized in that, The cleaning mechanism includes a mounting base (240); The mounting base (240) is provided with a groove (241); The spray assembly (210) is located on the side of the mounting groove near the inkjet assembly (100), the suction hole is located in the groove (241), and the wiper (230) is located at the end of the groove (241) away from the inkjet assembly (100).

6. The printing machine nozzle structure according to claim 5, characterized in that, The suction assembly (220) also includes a negative pressure pump; The output end of the negative pressure pump is connected to the suction port.

7. The printing machine nozzle structure according to claim 2, characterized in that, The nozzle (121) has spray holes; The spray holes are used to spray washing liquid, and a plurality of the spray holes are evenly and spaced apart on the surface of the spray assembly (210).

8. The printing machine nozzle structure according to claim 7, characterized in that, The spray assembly (210) also includes a booster pump; The output end of the booster pump is connected to the spray hole.

9. The printing machine nozzle structure according to claim 2, characterized in that, The cleaning mechanism (200) also includes a lifting assembly; The moving end of the lifting component is connected to the inkjet component (100) via a transmission connection.

10. An inkjet printing machine, characterized in that, The printing machine nozzle structure includes any one of claims 1-9.

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