Ink sprayer

Abstract

The utility model relates to a printing ink sprayer and belongs to the field of plate spraying. The ink sprayer comprises a mounting frame, a sprayer body and a leakage-proof cover. The mounting frame is provided with a supporting surface for supporting a plate; the sprayer body is provided with a spray head, the spray head is arranged on the mounting frame and located above the supporting face, and the mounting frame is used for driving the spray head to move; a containing cavity is formed in the leakage-proof cover, the leakage-proof cover is arranged outside the spray head in a sleeving mode, a collecting groove is formed in the side, away from the supporting face, of the leakage-proof cover, the collecting groove is formed around the periphery of the spray head, and a liquid passing gap communicated with the containing cavity is formed in the bottom wall of the collecting groove.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal spraying, and specifically relates to an ink sprayer. Background Technology

[0002] In the process of creating ancient architectural models, ink spraying is required on the sheet metal parts to give the outer surface an antique-style line or texture. However, if the pipes rupture or the joints become loose during spraying, the ink may travel along the pipes and nozzles, falling directly onto the sheet surface as droplets, creating localized spots, streaks, or uneven coatings. Simultaneously, leaked ink may stain the supporting surfaces, causing secondary contamination as the sheets move. Minor contamination requires additional manual cleaning or sanding repair, increasing labor costs. Heavily contaminated sheets may need to be scrapped, resulting in wasted raw materials and order delays.

[0003] Therefore, limiting ink contamination of the substrate during the period between the pipe rupture and its discovery is a pressing technical problem that needs to be solved. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide an ink sprayer that can limit ink contamination of the substrate during the period from when a pipeline ruptures until the rupture is discovered.

[0005] This application provides an ink sprayer, which includes a mounting frame, a sprayer body, and a leak-proof cover. The mounting frame has a support surface for supporting a plate; the sprayer body has a nozzle, which is mounted on the mounting frame and located above the support surface, and the mounting frame is used to move the nozzle; the leak-proof cover has a receiving cavity, and the leak-proof cover is fitted over the nozzle. A collection groove is provided on the side of the leak-proof cover away from the support surface, and the collection groove is arranged around the outer periphery of the nozzle. The bottom wall of the collection groove has a liquid passage gap communicating with the receiving cavity.

[0006] In the above technical solution, after the pipeline ruptures, as the ink flows along the pipeline towards the printhead, the ink comes into contact with the leak-proof cover and moves along the side of the cover away from the support surface, thereby entering the collection tank and entering the receiving cavity along the liquid passage gap. This keeps the ink in the collection tank within a certain amount, thereby reducing the risk of ink spilling out of the collection tank when the mounting frame drives the printhead to move, and thus reducing the risk of ink overflowing or spilling from the collection tank and contaminating the board.

[0007] In some embodiments, the liquid passage gap has a first end communicating with the collection tank and a second end communicating with the accommodating cavity, wherein, in the direction of gravity, the dimension between the first end and the supporting surface is not greater than the dimension between any point on the bottom of the collection tank and the supporting surface.

[0008] In the above technical solution, the dimension between the first end and the supporting surface is not greater than the dimension between any point at the bottom of the collection tank and the supporting surface. Thus, when the ink enters the collection tank, gravity will cause the ink to move towards the first end, thereby enabling the ink to enter the receiving cavity through the liquid gap, which facilitates the collection of the ink.

[0009] In some embodiments, the leak-proof cover includes a first wall, a second wall, and a guide wall; the first wall is attached to the outer periphery of the nozzle; the second wall is surrounding the outer periphery of the first wall; the guide wall is connected to the second wall, the thickness direction of the guide wall is parallel to the direction of gravity, the first wall, the second wall, and the guide wall enclose to form the collection groove, and there is a liquid passage gap between the guide wall and the first wall along the radial direction of the nozzle, the radial direction being perpendicular to the direction of gravity.

[0010] In the above technical solution, a liquid-passing gap exists between the guide wall and the first wall, allowing the liquid-passing gap to surround the outer periphery of the first wall. This enables the ink to directly enter the receiving cavity through the liquid-passing gap as it moves along the outer edge of the first wall, reducing the ink's residence time in the collection tank. Consequently, when the mounting frame moves the printhead, the risk of ink spilling from the collection tank is reduced, thus minimizing the risk of ink overflowing or contaminating the substrate.

[0011] In some embodiments, the dimensions of the guide wall and the support surface gradually decrease in the direction of gravity, from the first wall to the second wall.

[0012] In the above technical solution, from the first wall to the second wall, the dimensions of the guide wall and the support surface gradually decrease in the direction of gravity. As a result, when the ink drips due to the movement of the pipeline and under the action of inertia, the ink dripping on the guide wall can be guided to move towards the liquid gap, so that the ink can enter the receiving cavity.

[0013] In some embodiments, the leak-proof cover further includes a connecting wall for connecting one end of the first wall near the support surface and one end of the second wall near the support surface; the first wall, the second wall, the guide wall and the connecting wall together form the receiving cavity.

[0014] In the above technical solution, the first wall and the second wall are connected by a connecting wall, which on the one hand increases the integrity of the leak-proof cover, and on the other hand forms a accommodating cavity. The structure is simple and easy to implement.

[0015] In some embodiments, the inner surface of the connecting wall is recessed to form a groove, and the orthographic projection of the groove does not overlap with the orthographic projection of the liquid passage gap on a plane perpendicular to the direction of gravity.

[0016] In the above technical solution, the orthographic projection of the groove and the orthographic projection of the liquid passage gap do not overlap on the plane perpendicular to the direction of gravity. As a result, after the ink enters the receiving cavity, it will move along the wall of the groove towards the lowest point of the groove under the action of gravity. At the same time, since the orthographic projection of the groove and the orthographic projection of the liquid passage gap do not overlap, the ink moves away from the liquid passage gap in the radial direction of the nozzle, thereby reducing the risk of ink backflow from the liquid passage gap.

[0017] In some embodiments, the ink sprayer further includes an indicator light, a wire, and a flexible membrane; the indicator light is disposed on the mounting bracket; the wire is used to connect the indicator light and a power source, the wire including a first segment, a second segment, and a third segment, the first segment communicating with the indicator light, the third segment communicating with the power source, and portions of the first segment and the third segment located within the groove; the flexible membrane is disposed within the groove, the second segment being disposed on the side of the flexible membrane facing the support surface, the flexible membrane being configured to deform under force to move the second segment closer to the first segment and the third segment, thereby connecting the first segment and the third segment.

[0018] In the above technical solution, ink accumulates in the groove, so that the weight of the ink can cause the flexible membrane to deform, thereby connecting the second section to the first and third sections, and then connecting the wires to the indicator light and the power supply, so that the indicator light can be lit up so that the operator can notice the ink leakage and deal with it in time.

[0019] In some embodiments, the first wall is detachably connected to the nozzle.

[0020] In the above technical solution, the first wall is detachably connected to the printhead, allowing the leak-proof cover to be replaced after ink processing, facilitating rapid resumption of production. This reduces downtime and improves production efficiency.

[0021] In some embodiments, the leak-proof cover further includes an elastic sleeve disposed at one end of the first wall away from the support surface, and the elastic sleeve is fitted around the outer periphery of the nozzle.

[0022] In the above technical solution, the elastic sleeve is fitted around the outer periphery of the printhead. On the one hand, the elastic sleeve detachably connects the first wall and the printhead, facilitating the installation and removal of the leak-proof cover. On the other hand, the elastic sleeve can be interference-fitted with the outer surface of the printhead to reduce the risk that ink will pass directly through the gap between the leak-proof cover and the printhead, causing the leak-proof cover to fail to restrict the ink.

[0023] In some embodiments, the leak-proof cover further includes a guide. One end of the guide is disposed within the collection tank, and the other end of the guide is disposed within the receiving cavity. The guide is provided with capillary pores for guiding liquid from the collection tank to the receiving cavity.

[0024] In the above technical solution, the capillary pores are used to guide the liquid from the collection tank to the receiving cavity. On the one hand, this facilitates the ink to quickly enter the receiving cavity from the collection tank through the guide. On the other hand, the guide can restrict the backflow of ink from the receiving cavity to the collection tank. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the ink sprayer provided in an embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the leak-proof cover provided in an embodiment of the present utility model;

[0028] Figure 3 A cross-sectional view of the leak-proof cover provided in an embodiment of this utility model;

[0029] Figure 4 for Figure 3 Sectional view of AA. Detailed Implementation

[0030] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0031] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In the process of creating ancient architectural models, ink spraying is required on the sheet metal parts to give the outer surface an antique-style line or texture. However, if the pipes rupture or the joints become loose during spraying, the ink may travel along the pipes and nozzles, falling directly onto the sheet surface as droplets, creating localized spots, streaks, or uneven coatings. Simultaneously, leaked ink may stain the supporting surfaces, causing secondary contamination as the sheets move. Minor contamination requires additional manual cleaning or sanding repair, increasing labor costs. Severely contaminated sheets may need to be scrapped, resulting in wasted raw materials and order delays.

[0035] Therefore, limiting ink contamination of the substrate during the period between the pipe rupture and its discovery is a pressing technical problem that needs to be solved.

[0036] To solve the above technical problems, refer to Figures 1-4 This application provides an ink sprayer, which includes a mounting frame 10, a sprayer body 20, and a leak-proof cover 30. The mounting frame 10 has a support surface 11 for supporting a plate; the sprayer body 20 has a nozzle 21, which is mounted on the mounting frame 10 and located above the support surface 11. The mounting frame 10 is used to move the nozzle 21; the leak-proof cover 30 has a receiving cavity 301 inside, and the leak-proof cover 30 is sleeved on the outside of the nozzle 21. A collection groove 302 is provided on the side of the leak-proof cover 30 away from the support surface 11. The collection groove 302 is arranged around the outer periphery of the nozzle 21, and the bottom wall of the collection groove 302 is provided with a liquid passage gap 303 communicating with the receiving cavity 301.

[0037] The mounting bracket 10 can be a dual-axis platform, which can be a platform composed of two linear modules extending along a first direction and a second direction, respectively. The nozzle 21 is mounted on the output mechanism of one of the linear modules, which in turn is mounted on the output mechanism of the other linear module to drive the cutting blade to move along the first and second directions. The first and second directions are horizontal directions perpendicular to the direction of gravity Z.

[0038] The sprayer body 20 may include a feeding section, a pressurizing section, an atomizing section, and a control section. The feeding section includes a pressure tank (with a stirring device and a removable inner liner) and an alcohol cleaning tank, which are used to store and transport ink to ensure a stable ink supply during the spraying process. The pressurizing section may be a pressure pump, which is used to extract ink from the pressure tank and transport it to the atomizing section through pipelines. The atomizing section is a nozzle 21, which is used to atomize the ink for spraying onto the substrate.

[0039] In this technical solution, after the pipeline ruptures, as the ink flows along the pipeline to the nozzle 21, the ink comes into contact with the leak-proof cover 30 and moves along the side of the cover away from the support surface 11, thereby entering the collection tank 302 and entering the receiving cavity 301 along the liquid passage gap 303. This keeps the ink in the collection tank 302 within a certain amount, thereby reducing the risk of ink spilling out of the collection tank 302 when the mounting bracket 10 drives the nozzle 21 to move, thus reducing the risk of ink overflowing or spilling from the collection tank 302 and contaminating the board.

[0040] According to some embodiments of this application, the liquid passage gap 303 has a first end 3031 communicating with the collection tank 302 and a second end 3032 communicating with the accommodating cavity 301. In the direction of gravity Z, the dimension between the first end 3031 and the support surface 11 is not greater than the dimension between any point at the bottom of the collection tank 302 and the support surface 11.

[0041] "In the direction of gravity Z, the dimension between the first end 3031 and the support surface 11 is not greater than the dimension between any point on the bottom of the collection tank 302 and the support surface 11" and the first end 3031 is flush with any point on the bottom of the collection tank 302 or the first end 3031 is located below any point on the bottom of the collection tank 302, so that the ink will move towards the first end 3031 under the action of gravity.

[0042] In this technical solution, the dimension between the first end 3031 and the support surface 11 is not greater than the dimension between any point at the bottom of the collection tank 302 and the support surface 11. Thus, when the ink enters the collection tank 302, gravity will cause the ink to move towards the first end 3031, thereby enabling the ink to enter the receiving cavity 301 through the liquid passage gap 303, which facilitates the collection of the ink.

[0043] According to some embodiments of this application, the leak-proof cover 30 includes a first wall 31, a second wall 32, and a guide wall 33; the first wall 31 is attached to the outer periphery of the nozzle 21; the second wall 32 is arranged around the outer periphery of the first wall 31; the guide wall 33 is connected to the second wall 32, and the thickness direction of the guide wall 33 is parallel to the gravity direction Z. The first wall 31, the second wall 32, and the guide wall 33 enclose a collection groove 302. Along the radial direction of the nozzle 21, there is a liquid passage gap 303 between the guide wall 33 and the first wall 31, and the radial direction is perpendicular to the gravity direction Z.

[0044] In this technical solution, a liquid-passing gap 303 exists between the guide wall 33 and the first wall 31. This gap 303 surrounds the outer periphery of the first wall 31, allowing ink to directly pass through the gap 303 into the receiving cavity 301 as it moves along the outer edge of the first wall 31, thus reducing the ink's retention time in the collection tank 302. Consequently, when the mounting bracket 10 moves the printhead 21, the risk of ink spilling from the collection tank 302 is reduced, thereby minimizing the risk of ink overflowing or contaminating the substrate.

[0045] According to some embodiments of this application, the dimensions of the guide wall 33 and the support surface 11 gradually decrease in the direction of gravity Z from the first wall 31 to the second wall 32.

[0046] "From the first wall 31 to the second wall 32, the dimensions of the guide wall 33 and the support surface 11 in the direction of gravity Z gradually decrease" and the end of the guide wall 33 away from the second wall 32 tilts towards the support surface 11.

[0047] In this technical solution, from the first wall 31 to the second wall 32, the dimensions of the guide wall 33 and the support surface 11 gradually decrease in the direction of gravity Z. As a result, when the ink drips due to the movement of the pipeline and under the action of inertia, the ink dripping on the guide wall 33 can be guided to move towards the liquid gap 303, so that the ink can enter the receiving cavity 301.

[0048] According to some embodiments of this application, the leak-proof cover 30 further includes a connecting wall 34, which is used to connect one end of the first wall 31 near the support surface 11 and one end of the second wall 32 near the support surface 11; the first wall 31, the second wall 32, the guide wall 33 and the connecting wall 34 together form a receiving cavity 301.

[0049] In some embodiments, the first wall 31, the second wall 32, the guide wall 33, and the connecting wall 34 can be integrally formed.

[0050] In some embodiments, the first wall 31, the second wall 32, the guide wall 33, and the connecting wall 34 may all be made of transparent material to facilitate observation of the ink storage status within the accommodating cavity 301.

[0051] In this technical solution, the first wall 31 and the second wall 32 are connected by the connecting wall 34. On the one hand, this increases the integrity of the leak-proof cover 30, and on the other hand, it encloses and forms the accommodating cavity 301. The structure is simple and easy to implement.

[0052] According to some embodiments of this application, the inner surface of the connecting wall 34 is recessed to form a groove 3011, and the orthographic projection of the groove 3011 does not overlap with the orthographic projection of the liquid passage gap 303 on a plane perpendicular to the direction of gravity Z.

[0053] In this technical solution, on a plane perpendicular to the direction of gravity Z, the orthographic projection of the groove 3011 does not overlap with the orthographic projection of the liquid passage gap 303. As a result, after the ink enters the accommodating cavity 301, it will move along the wall of the groove 3011 towards the lowest point of the groove 3011 under the action of gravity. At the same time, since the orthographic projection of the groove 3011 does not overlap with the orthographic projection of the liquid passage gap 303, the ink moves in the radial direction of the nozzle 21 away from the liquid passage gap 303, thereby reducing the risk of ink backflow from the liquid passage gap 303.

[0054] According to some embodiments of this application, the ink sprayer further includes an indicator light 40, a wire 50, and a flexible membrane 60; the indicator light 40 is disposed on the mounting bracket 10; the wire 50 is used to connect the indicator light 40 and the power supply, and the wire 50 includes a first segment 51, a second segment 52, and a third segment 53, the first segment 51 is connected to the indicator light 40, the third segment 53 is connected to the power supply, and a portion of the first segment 51 and a portion of the third segment 53 are located in the groove 3011; the flexible membrane 60 is disposed in the groove 3011, the second segment 52 is disposed on the side of the flexible membrane 60 facing the support surface 11, and the flexible membrane 60 is configured to deform under force to move the second segment 52 closer to the first segment 51 and the third segment 53, thereby connecting the first segment 51 and the third segment 53.

[0055] In some embodiments, on a plane perpendicular to the direction of gravity Z, the orthographic projection of the second segment 52 overlaps with the orthographic projection of the portion of the first segment 51 located within the flexible membrane 60, and the orthographic projection of the second segment 52 overlaps with the orthographic projection of the portion of the third segment 53 located within the flexible membrane 60.

[0056] In this technical solution, ink accumulates at the groove 3011, so that the weight of the ink can cause the flexible membrane 60 to deform, thereby causing the second segment 52 to connect the first segment 51 and the third segment 53, and then the wire 50 connects the indicator light 40 and the power supply, so that the indicator light 40 lights up so that the operator can notice the ink leakage and deal with it in time.

[0057] According to some embodiments of this application, the first wall 31 is detachably connected to the nozzle 21.

[0058] In some embodiments, the nozzle 21 and the first wall 31 can be connected to each other by a threaded connection.

[0059] In this technical solution, the first wall 31 is detachably connected to the printhead 21, allowing the leak-proof cover 30 to be replaced after ink processing, facilitating rapid resumption of production. This reduces downtime and improves production efficiency.

[0060] According to some embodiments of this application, the leak-proof cover 30 further includes an elastic sleeve 35, which is disposed at the end of the first wall 31 away from the support surface 11 and is sleeved on the outer periphery of the nozzle 21.

[0061] For example, the elastic sleeve 35 may be made of rubber.

[0062] In this technical solution, the elastic sleeve 35 is sleeved on the outer periphery of the printhead 21. On the one hand, the elastic sleeve 35 detachably connects the first wall 31 and the printhead 21, which facilitates the installation and removal of the leak-proof cover 30. On the other hand, the elastic sleeve 35 can be interference-fitted with the outer surface of the printhead 21 to reduce the risk that ink will pass directly through the gap between the leak-proof cover 30 and the printhead 21, causing the leak-proof cover 30 to fail to restrict the ink.

[0063] According to some embodiments of this application, the leak-proof cover 30 further includes a guide 36. One end of the guide 36 is disposed in the collection tank 302, and the other end of the guide 36 is disposed in the receiving cavity 301. The guide 36 is provided with capillary holes for guiding liquid from the collection tank 302 to the receiving cavity 301.

[0064] In some embodiments, the guide 36 can be a nylon thread assembly, with one end of the nylon thread assembly located in the collection groove 302 and the other end located in the receiving cavity 301, and at a certain distance from the groove 3011 in the gravitational direction Z. The capillaries are the gaps between the nylon fibers in the nylon thread assembly.

[0065] In this technical solution, the capillary pores are used to guide the liquid from the collection tank 302 to the accommodating cavity 301. On the one hand, this facilitates the ink to quickly enter the accommodating cavity 301 from the collection tank 302 through the guide 36. On the other hand, the guide 36 can restrict the backflow of ink from the accommodating cavity 301 to the collection tank 302.

[0066] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0067] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An ink sprayer, characterized in that, include: Mounting bracket, having a support surface for supporting the sheet metal; The sprayer body has a nozzle, which is mounted on the mounting bracket and located above the support surface. The mounting bracket is used to move the nozzle. A leak-proof cover has an internal cavity. The leak-proof cover is fitted over the nozzle. A collection groove is provided on the side of the leak-proof cover away from the support surface. The collection groove is arranged around the outer periphery of the nozzle. The bottom wall of the collection groove is provided with a liquid passage gap communicating with the cavity.

2. The ink sprayer according to claim 1, characterized in that, The liquid passage gap has a first end communicating with the collection tank and a second end communicating with the accommodating cavity. In the direction of gravity, the dimension between the first end and the supporting surface is not greater than the dimension between any point on the bottom of the collection tank and the supporting surface.

3. The ink sprayer according to claim 1, characterized in that, The leak-proof cover includes: The first wall is attached to the outer periphery of the nozzle; The second wall is arranged around the outer periphery of the first wall; A guide wall is connected to the second wall. The thickness direction of the guide wall is parallel to the direction of gravity. The first wall, the second wall, and the guide wall together form the collection groove. Along the radial direction of the nozzle, there is a liquid passage gap between the guide wall and the first wall. The radial direction is perpendicular to the direction of gravity.

4. An ink sprayer according to claim 3, characterized in that, From the first wall to the second wall, the dimensions of the guide wall and the support surface gradually decrease in the direction of gravity.

5. An ink sprayer according to claim 3, characterized in that, The leak-proof cover also includes: A connecting wall is used to connect the end of the first wall near the supporting surface and the end of the second wall near the supporting surface; The first wall, the second wall, the guide wall, and the connecting wall together form the accommodating cavity.

6. An ink sprayer according to claim 5, characterized in that, The inner surface of the connecting wall is recessed to form a groove, and the orthographic projection of the groove does not overlap with the orthographic projection of the liquid passage gap on a plane perpendicular to the direction of gravity.

7. An ink sprayer according to claim 6, characterized in that, The ink sprayer also includes: Indicator lights are mounted on the mounting bracket; A wire for connecting the indicator light and the power supply, the wire comprising a first segment, a second segment and a third segment, the first segment being connected to the indicator light, the third segment being connected to the power supply, and portions of the first segment and the third segment being located within the groove; A flexible membrane is disposed within the groove, and a second segment is disposed on the side of the flexible membrane facing the support surface. The flexible membrane is configured to deform under force to move the second segment closer to the first segment and the third segment, thereby connecting the first segment and the third segment.

8. An ink sprayer according to claim 3, characterized in that, The first wall is detachably connected to the nozzle.

9. An ink sprayer according to claim 8, characterized in that, The leak-proof cover also includes; An elastic sleeve is disposed at the end of the first wall away from the supporting surface, and the elastic sleeve is sleeved on the outer periphery of the nozzle.

10. An ink sprayer according to any one of claims 1-9, characterized in that, The leak-proof cover also includes: A guide is provided at one end in the collection tank and at the other end in the receiving cavity. The guide is provided with capillary pores, which are used to guide the liquid from the collection tank to the receiving cavity.

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