Cleaning mechanism for nozzle of UV ink-jet printer

Abstract

The utility model discloses a nozzle cleaning mechanism of a UV ink-jet printer. The nozzle cleaning mechanism comprises a propelling cylinder, a piston rod, a three-way valve and a liquid distribution pipe. According to the cleaning device, the sliding sleeve on the outer surface wall of the vertical end of the liquid distribution pipe slides along the arc-shaped end of the outer frame, one side of the corrugated sleeve is shrunk, and the other side of the corrugated sleeve is expanded, so that the deflection requirement of the liquid distribution pipe is met, normal transfer of cleaning liquid is guaranteed, and after the cleaning pipe deflects to a proper angle, a positioning rod is rotated to enable the open end of the positioning rod to abut against the outer surface wall of the outer frame; the cleaning pipes are aligned to external spray heads, the piston rods are pushed upwards to enable cleaning liquid to be transferred to the liquid distribution pipes through the connecting pipes and the corrugated sleeves, and then the cleaning liquid is guided out through the multiple sets of cleaning pipes, so that corresponding cleaning of the multiple sets of spray heads is achieved, and the orientation of the cleaning pipes can be conveniently adjusted according to use requirements; and therefore, the use convenience of the cleaning mechanism for the nozzle of the UV ink-jet printer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of UV inkjet printer maintenance, in particular to a cleaning mechanism for the nozzles of a UV inkjet printer. Background Art

[0002] Due to the volatilization of UV ink or the irradiation of the UV lamp during the printing process, if the ink does not circulate on the nozzle for a long time, the nozzle will be blocked.

[0003] Chinese Patent Publication No. CN209888425U, published on January 3, 2020, discloses a cleaning device for the nozzles of a UV inkjet printer, including an injection mechanism. The injection mechanism is connected to a connection mechanism through a first connecting pipe. The connection mechanism is connected with a plurality of cleaning pipes. The distance between adjacent cleaning pipes is equal to the distance between adjacent nozzles of the UV inkjet printer. A valve is arranged on the cleaning pipe to control the conduction and disconnection of the cleaning pipe. The cleaning pipe is connected with a second connecting pipe, and the second connecting pipe is used to block the nozzles of the UV inkjet printer.

[0004] In the existing cleaning mechanism for the nozzles of a UV inkjet printer, such as the above, the cleaning liquid is pressed into the nozzle position through the injection mechanism to clean the nozzle. In the specific implementation process, after the operator holds the syringe barrel, the orientation of the cleaning pipe is relatively fixed, and only the operator can adjust the posture of the overall cleaning mechanism to make the cleaning pipe correspond to the nozzle. The overall operation is relatively inconvenient. Therefore, it is urgent to propose a corresponding cleaning mechanism for the nozzles of a UV inkjet printer to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a cleaning mechanism for the nozzles of a UV inkjet printer to solve the above problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A cleaning mechanism for the nozzles of a UV inkjet printer includes a push cylinder, a piston rod, a three-way valve and a liquid distribution pipe. The horizontal end of the liquid distribution pipe is integrated with multiple groups of cleaning pipes, and plastic angle valves are integrated inside multiple groups of the cleaning pipes. The push cylinder is communicated with the liquid distribution pipe through a corrugated sleeve. An outer frame is fixedly connected to the outer wall of the connecting pipe, and an adjusting component for adjusting the axial position of the liquid distribution pipe is arranged on the outer wall of the outer frame.

[0008] Preferably, the three-way valve includes a main body, a port one, a port two and a port three. The connecting pipe is connected to the port three, and the port two is connected with a liquid inlet pipe.

[0009] Preferably, a support frame is fixedly connected between the connecting pipe and the push cylinder.

[0010] Preferably, a clamping seat is fixedly connected to one side of the support frame close to the liquid inlet pipe, and the clamping seat is snap-connected to the outer wall of the liquid inlet pipe.

[0011] Preferably, the adjusting assembly includes a sliding sleeve fixedly connected to the outer wall of the vertical end of the liquid distribution pipe. The inner wall of the sliding sleeve is slidably connected to the outer wall of the arc end of the outer frame, and a fixing portion for fixedly connecting the sliding sleeve to the outer frame is provided on the outer wall of the sliding sleeve.

[0012] Preferably, the fixing portion includes a positioning rod. The outer wall of the positioning rod is screwed to the inner wall of the sliding sleeve, and the open end of the positioning rod abuts against the outer wall of the outer frame.

[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0014] 1. In this application, when the liquid distribution pipe is toggled, the sliding sleeve on the outer wall of the vertical end of the liquid distribution pipe slides along the arc end of the outer frame. While one side of the corrugated sleeve contracts, the other side expands to meet the deflection requirement of the liquid distribution pipe and ensure the normal transfer of the cleaning liquid. Until the cleaning pipe deflects to an appropriate angle, rotate the positioning rod so that its open end abuts against the outer wall of the outer frame, thereby realizing the positioning of the liquid distribution pipe through contact friction, aligning the cleaning pipe with the external nozzle, and pushing the piston rod upward to make the cleaning liquid transfer from the connecting pipe and the corrugated sleeve to the liquid distribution pipe and then be led out through multiple groups of cleaning pipes, so as to realize the corresponding cleaning of multiple groups of nozzles, and the orientation of the cleaning pipe can be conveniently adjusted according to the use requirements, thus improving the convenience of use of the UV inkjet printer nozzle cleaning mechanism.

[0015] 2. In this application, after the cleaning liquid in the push cylinder is pushed, open port 2 of the three-way valve and close port 3 correspondingly. Place the liquid inlet pipe into the cleaning liquid container and pull back the piston rod. The inside of the push cylinder will be filled with cleaning liquid again. Then open port 3 of the three-way valve and snap the liquid inlet pipe onto the clamping seat, which not only ensures the convenience of filling the cleaning liquid of the cleaning mechanism but also ensures the stable position of the liquid inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows the overall structural schematic diagram provided by an embodiment of the present utility model;

[0017] Figure 2 Shows the structural schematic diagram of the clamping seat provided by an embodiment of the present utility model;

[0018] Figure 3 Shows the structural schematic diagram of the outer frame provided by an embodiment of the present utility model;

[0019] Figure 4 Shows the structural schematic diagram of the corrugated sleeve provided by an embodiment of the present utility model.

[0020] Legend Explanation:

[0021] 1. Propelling cylinder; 2. Piston rod; 3. Support frame; 4. Three-way valve; 401. Main body; 402. Port 1; 403. Port 2; 404. Port 3; 5. Liquid inlet pipe; 6. Connecting pipe; 7. Outer frame; 8. Liquid distribution pipe; 9. Cleaning pipe; 10. Sliding sleeve; 11. Positioning rod; 12. Corrugated sleeve; 13. Plastic angle valve; 14. Clamping seat. Detailed Implementation Manner

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

[0023] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0024] A cleaning mechanism for the nozzle of a UV inkjet printer includes a propelling cylinder 1, a piston rod 2, a three-way valve 4 and a liquid distribution pipe 8. The horizontal end of the liquid distribution pipe 8 is integrated with multiple groups of cleaning pipes 9, and multiple groups of plastic angle valves 13 are integrated inside the cleaning pipes 9. The propelling cylinder 1 is communicated with the liquid distribution pipe 8 through a corrugated sleeve 12. The outer wall of the connecting pipe 6 is fixedly connected with an outer frame 7, and an adjusting component for adjusting the axial position of the liquid distribution pipe 8 is arranged on the outer wall of the outer frame 7;

[0025] When the liquid distribution pipe 8 is toggled, the sliding sleeve 10 on the outer wall of the vertical end of the liquid distribution pipe 8 slides along the arc end of the outer frame 7. While one side of the corrugated sleeve 12 contracts, the other side expands to meet the deflection requirement of the liquid distribution pipe 8 and ensure the normal transfer of the cleaning liquid. Until the cleaning pipe 9 is deflected to a suitable angle, rotate the positioning rod 11 so that its open end abuts against the outer wall of the outer frame 7, thereby realizing the positioning of the liquid distribution pipe 8 through contact friction. Align the cleaning pipe 9 with the external nozzle. Push up the piston rod 2 to make the cleaning liquid transfer from the connecting pipe 6 and the corrugated sleeve 12 to the liquid distribution pipe 8, and then be led out through multiple groups of cleaning pipes 9, so as to realize the corresponding cleaning of multiple groups of nozzles. Moreover, the orientation of the cleaning pipe 9 can be conveniently adjusted according to the use requirements, thereby improving the convenience of using the cleaning mechanism for the nozzle of the UV inkjet printer.

[0026] Specifically, as Figure 2 and Figure 4As shown, the three-way valve 4 includes a main body 401, port one 402, port two 403 and port three 404, the connecting pipe 6 is connected to port three 404, port two 403 is connected to the liquid inlet pipe 5, and a support frame 3 is fixedly connected between the connecting pipe 6 and the propulsion cylinder 1 to reinforce the propulsion cylinder 1 and the connecting pipe 6, and a clamping seat 14 is fixedly connected to the side of the support frame 3 close to the liquid inlet pipe 5, and the clamping seat 14 is snap-connected to the outer wall of the liquid inlet pipe 5. After the cleaning liquid inside the propulsion cylinder 1 is pushed, the port two 403 of the three-way valve 4 is opened and the port three 404 is closed accordingly. The liquid inlet pipe 5 is placed in the cleaning liquid container, and the piston rod 2 is pulled back. The cleaning liquid will be filled into the propulsion cylinder 1 again. Then the port three 404 of the three-way valve 4 is opened, and the liquid inlet pipe 5 can be clamped on the clamping seat 14, so as to ensure the convenience of filling the cleaning liquid into the cleaning mechanism while ensuring the stable position of the liquid inlet pipe 5.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, the adjustment component includes a sleeve 10, which is fixedly connected to the outer wall of the vertical end of the liquid distribution pipe 8, and the inner wall of the sleeve 10 is slidably connected to the outer wall of the arc-shaped end of the outer frame 7. The outer wall of the sleeve 10 is provided with a fixing portion for fixing the sleeve 10 to the outer frame 7, and the fixing portion includes a positioning rod 11. The outer wall of the positioning rod 11 is screwed into the inner wall of the sleeve 10, and the open end of the positioning rod 11 abuts against the outer wall of the outer frame 7. The liquid distribution pipe 8 is moved, and the sleeve 10 on the outer wall of the vertical end of the liquid distribution pipe 8 slides along the arc-shaped end of the outer frame 7 until the cleaning pipe 9 is deflected to a suitable angle. The positioning rod 11 is rotated so that its open end abuts against the outer wall of the outer frame 7, thereby realizing the positioning of the liquid distribution pipe 8 through contact friction.

[0028] Working principle: Toggle the liquid distribution pipe 8, and the sliding sleeve 10 on the outer surface of the vertical end of the liquid distribution pipe 8 slides along the arc end of the outer frame 7. While one side of the corrugated sleeve 12 contracts, the other side expands to meet the deflection requirements of the liquid distribution pipe 8 and ensure the normal transfer of the cleaning liquid. Until the cleaning pipe 9 deflects to an appropriate angle, rotate the positioning rod 11 so that its open end abuts against the outer surface of the outer frame 7, thereby realizing the positioning of the liquid distribution pipe 8 through contact friction, aligning the cleaning pipe 9 with the external nozzle. Push up the piston rod 2 to transfer the cleaning liquid from the connecting pipe 6 and the corrugated sleeve 12 to the liquid distribution pipe 8, and then discharge it through multiple groups of cleaning pipes 9, thereby realizing the corresponding cleaning of multiple groups of nozzles. Moreover, the orientation of the cleaning pipe 9 can be conveniently adjusted according to the use requirements, thus improving the convenience of using the cleaning mechanism for the UV inkjet printer nozzles. After the cleaning liquid in the propulsion cylinder 1 is pushed, open the port two 403 of the three-way valve 4 and close the port three 404 correspondingly. Place the liquid inlet pipe 5 into the cleaning liquid container, pull back the piston rod 2, and the cleaning liquid will be refilled into the propulsion cylinder 1 again. Then open the port three 404 of the three-way valve 4 and can clamp the liquid inlet pipe 5 on the card seat 14, thereby ensuring the convenience of filling the cleaning liquid in the cleaning mechanism while also ensuring the stable position of the liquid inlet pipe 5.

[0029] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cleaning mechanism for a UV inkjet printer nozzle, comprising a propulsion cylinder (1), a piston rod (2), a three-way valve (4), a connecting pipe (6) and a liquid distribution pipe (8). The horizontal end of the liquid distribution pipe (8) is integrated with multiple groups of cleaning pipes (9), and plastic angle valves (13) are integrated inside multiple groups of the cleaning pipes (9). It is characterized in that, The propulsion cylinder (1) is communicated with the liquid distribution pipe (8) through a corrugated sleeve (12). An outer frame (7) is fixedly connected to the outer surface wall of the connecting pipe (6), and an adjusting assembly for adjusting the axial position of the liquid distribution pipe (8) is arranged on the outer surface wall of the outer frame (7).

2. The cleaning mechanism for the UV inkjet printer nozzle according to claim 1, wherein, The three-way valve (4) includes a main body (401), a port one (402), a port two (403) and a port three (404). The connecting pipe (6) is connected to the port three (404), and the port two (403) is connected to a liquid inlet pipe (5).

3. The cleaning mechanism for the UV inkjet printer nozzle according to claim 2, characterized in that, A support frame (3) is fixedly connected between the connecting pipe (6) and the propulsion cylinder (1).

4. The cleaning mechanism for the UV inkjet printer nozzle according to claim 3, characterized in that, A clamping seat (14) is fixedly connected to one side of the support frame (3) close to the liquid inlet pipe (5), and the clamping seat (14) is snap-connected to the outer surface wall of the liquid inlet pipe (5).

5. The cleaning mechanism for the UV inkjet printer nozzle according to claim 4, characterized in that, The adjusting assembly includes a sliding sleeve (10). The sliding sleeve (10) is fixedly connected to the outer surface wall of the vertical end of the liquid distribution pipe (8). The inner surface wall of the sliding sleeve (10) is slidably connected to the outer surface wall of the arc end of the outer frame (7). A fixing part for fixedly connecting the sliding sleeve (10) and the outer frame (7) is arranged on the outer surface wall of the sliding sleeve (10).

6. The cleaning mechanism for the UV inkjet printer head according to claim 5, characterized in that, The fixing part includes a positioning rod (11). The outer surface wall of the positioning rod (11) is screwed to the inner surface wall of the sliding sleeve (10), and the open end of the positioning rod (11) abuts against the outer surface wall of the outer frame (7).

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