Ink box device with negative pressure suction protection function

Abstract

An ink box device with a negative pressure suction protection function comprises a double-cavity ink box installed on the upper portion of a support and a negative pressure gas cylinder installed on an extension plate on the lower portion of the support, a T-shaped shell base is connected between the lower ends of two cylinders in the double-cavity ink box, and a plurality of connector pipes are evenly arranged on the bottom face of the shell base. Two electromagnetic control valves are symmetrically arranged at the two ends of the shell base, an ink inlet pipe is arranged on the upper surface of the end of the shell base, a square box base is arranged between the upper ends of the two cylinders, a negative pressure connector is arranged at the end of the square box base, and a suction pipe is connected between the connector at the upper end of the negative pressure gas cylinder and the negative pressure connector. The upper space of the ink box is increased through the square box base of the device, redundancy is provided for liquid level monitoring errors of the floater, meanwhile, negative pressure is provided for the interior of the square box base through connection of the negative pressure gas cylinder and the negative pressure connector, and when the ink reaches the upper warning liquid level, the ink can be sucked out and discharged in time; the phenomenon that ink overflows and pollutes a printing medium due to inaccurate monitoring of the floater is avoided, and safe and stable operation of printing work is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to inkjet printer field especially relates to ink box device with negative pressure suction protection function. BACKGROUND

[0002] Inkjet printer is through printing dolly to take the nozzle to move in the printing medium width direction and carries on the continuous printing, and the ink consumption is huge for continuous printing, and the printing dolly needs to keep high action sensitivity to improve the printing quality, but the printing dolly carries a large amount of ink and generates a large inertia, and the sensitivity of the printing dolly is affected. At present, a small capacity secondary ink supply ink box is usually installed on the printing dolly to solve the problem of large amount of ink carrying, and compared with the integrated ink box, the oil reservoir of the secondary ink box can be replaced or added individually, thereby reducing the use cost, and since each nozzle can be controlled individually as required, the secondary ink box can realize high-quality image and text output. The current secondary ink box mainly monitors the liquid level through the float, but the ink liquid level will be shaken during the movement of the secondary ink box with the printing dolly, causing inaccurate float monitoring, and in serious cases, it can cause ink overflow and pollute the printing medium. SUMMARY

[0003] In order to solve the above problems, the utility model provides an ink box device with negative pressure suction protection function.

[0004] The technical scheme of the utility model is: an ink box device with negative pressure suction protection function, comprising a double-cavity ink box installed on the upper part of a U-shaped support, a negative pressure gas cylinder installed on the extension plate of the lower part of the U-shaped support, a through hole is arranged on the upper part of the U-shaped support, the lower part of the double-cavity ink box is sleeved in the through hole, the double-cavity ink box comprises two cylindrical bodies arranged side by side, a T-shaped shell seat is connected between the lower ends of the two cylindrical bodies, the inner chamber of the T-shaped shell seat is communicated with the inner chambers of the two cylindrical bodies, a plurality of joint pipes are uniformly arranged on the bottom surface of the T-shaped shell seat, the joint pipes are connected with the nozzles at the bottom of the printing dolly through ink pipes, two electromagnetic control valves are symmetrically arranged at the two ends of the T-shaped shell seat, an ink inlet pipe is arranged on the upper surface of the end part of the T-shaped shell seat, a square box seat is arranged between the upper ends of the two cylindrical bodies, two sleeve holes are arranged side by side on the bottom plate of the square box seat, the inner chamber of the square box seat is communicated with the inner chambers of the two cylindrical bodies, a negative pressure joint is arranged at the end part of the square box seat, and a suction pipe is connected between the joint of the upper end of the negative pressure gas cylinder and the negative pressure joint.

[0005] Preferably, the top plate of the square box seat is provided with two floats arranged side by side, the liquid level is displayed through the floats, and the two floats correspond to the centers of the two cylindrical bodies respectively.

[0006] Preferably, vertical support screw is arranged between the side of the square box seat and the T-shaped shell seat, the square box seat and the T-shaped shell are fixedly connected into one body through the vertical support screw, the hexagonal head of the upper end of the vertical support screw is sleeved into the groove of the top plate of the square box seat, and the lower end is threadedly connected into the threaded hole of the upper end of the T-shaped shell seat.

[0007] Preferably, the upper end of the vertical support screw is provided with an upper auxiliary nut abutting against the bottom surface of the square box seat, the upper end of the vertical support screw is locked with the square box seat through the upper auxiliary nut, and the lower end is provided with a lower auxiliary nut abutting against the upper surface of the T-shaped shell seat, and the lower end of the vertical support screw is locked with the T-shaped shell seat through the lower auxiliary nut.

[0008] Preferably, the square box seat is provided with at least two negative pressure connectors, the negative pressure connectors vertically penetrate into the square box seat, and the two negative pressure connectors are connected with the connectors at the upper end of the negative pressure gas cylinder.

[0009] Preferably, the lower part of the U-shaped support is provided with an ink pipe baffle, the ink pipe baffle is in a groove plate structure, and a plurality of pipe penetrating holes corresponding to the positions of the connectors of the upper part are uniformly arranged on the ink pipe baffle.

[0010] Preferably, the upper part of the U-shaped support is uniformly provided with four double-cavity ink cartridges, and the extending plate is uniformly provided with four negative pressure gas cylinders, the four negative pressure gas cylinders are arranged in a line and side by side, and each negative pressure gas cylinder corresponds to a double-cavity ink cartridge.

[0011] The utility model discloses a square box seat and T-shaped shell seat are connected into one body through the vertical support screw, the upper end of the vertical support screw is sleeved into the groove of the top plate of the square box seat, and the lower end is threadedly connected into the threaded hole of the upper end of the T-shaped shell seat. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0013] Figure 2 It is the main view structure schematic diagram of the utility model;

[0014] Figure 3 It is the three-dimensional structure schematic diagram of double-cavity ink cartridge;

[0015] Figure 4 It is the three-dimensional structure schematic diagram of double-cavity ink cartridge after removing the square box seat;

[0016] Figure 5 It is the three-dimensional structure schematic diagram of square box seat.

[0017] In the figure, 1. Double cavity ink box, 11. Cylinder, 12. T-shaped shell seat, 121. Ink inlet pipe, 122. Joint pipe, 13. Square box seat, 131. Negative pressure joint, 14. Electromagnetic control valve, 15. Float, 16. Vertical support screw, 2. Negative pressure cylinder, 21. Suction pipe, 3. U-shaped support, 31. Ink pipe baffle, 311. Pipe hole, 5. U-shaped support. DETAILED DESCRIPTION

[0018] Embodiment one, see attached Figures 1-5 An ink box device with negative pressure suction protection function, comprising a double cavity ink box 1 installed on the upper part of the U-shaped support 3, a negative pressure cylinder 2 installed on the extension plate of the lower part of the U-shaped support, the double cavity ink box 1 comprises two cylindrical bodies 11 arranged side by side, a T-shaped shell seat 12 is connected between the lower ends of the two cylindrical bodies, the bottom surface of the T-shaped shell seat is uniformly arranged with a plurality of joint pipes 122, the ink delivery pipe is connected to the joint pipe, the ink delivery pipe is connected to the nozzle, two electromagnetic control valves 14 are symmetrically arranged at the two ends of the T-shaped shell seat 12, the pipeline for supplying ink is opened or closed through the electromagnetic control valve, the ink inlet pipe 121 is arranged on the upper surface of the end of the T-shaped shell seat, the ink inlet pipe is connected with the fixed installation of the large ink bottle on the rack through the pipeline, the square box seat 13 is arranged between the upper ends of the two cylindrical bodies 11, the internal chamber of the square box seat is communicated with the internal chambers of the two cylindrical bodies 11, the upper space of the ink box is increased through the square box seat 13, the redundancy of the liquid level monitoring error of the float 15 is provided, the monitoring accuracy of the float 15 is improved, the negative pressure joint 131 is arranged at the end of the square box seat 13, the suction pipe 21 is connected between the joint of the upper end of the negative pressure cylinder 2 and the negative pressure joint 131, the top plate of the square box seat 13 is arranged with two floats 15 side by side, the two floats correspond to the centers of the two cylindrical bodies 11 respectively.

[0019] At least two negative pressure joints 131 are arranged at the end of the square box seat 13, the two negative pressure joints are respectively connected with the joint of the upper end of the negative pressure cylinder 2, the suction force of the two negative pressure joints 131 is stronger, the ink can be sucked out in time in case of unexpected situation, the ink overflow is avoided, and the safety of printing work is ensured. Four double cavity ink boxes 1 are uniformly arranged on the upper part of the U-shaped support 3, four negative pressure cylinders 2 are uniformly arranged on the extension plate, each negative pressure cylinder corresponds to one double cavity ink box 1, the number of ink boxes and negative pressure cylinders 2 is arranged according to the number of nozzles on the printing trolley.

[0020] The lower part of the U-shaped support 3 is provided with an ink pipe baffle 31, a plurality of pipe holes 311 corresponding to the positions of a plurality of joint pipes 122 on the upper part are uniformly arranged on the ink pipe baffle, the ink delivery pipe passes through the pipe hole 311 on the ink pipe baffle 31, the ink delivery pipe is supported by the ink pipe baffle 31, the phenomenon of shaking and instability of the ink delivery pipe caused by the inertia of the printing trolley is avoided, the sealing property and stability of the ink delivery pipe are ensured.

[0021] In the use of the ink cartridge device of the embodiment, the liquid level of the ink in the ink cartridge is monitored in real time by the float 15 to ensure the stability of the liquid level. When the float 15 cannot accurately monitor the liquid level due to the shaking of the liquid level caused by the reciprocating movement of the printing carriage during the printing operation, and the ink reaches the warning liquid level, the negative pressure provided by the negative pressure cylinder 2 through the suction pipe 21 for the inside of the square box seat 13 will suck out the upper ink to keep the liquid level stable, thereby avoiding the phenomenon that the inaccurate monitoring of the float 15 causes the ink to overflow and pollute the printing medium.

[0022] Embodiment Two, see attached Figures 4-5 The embodiment is basically the same as Embodiment One, except that a vertical support screw 16 is arranged between the side edges of the square box seat 13 and the T-shaped shell seat 12. The hexagonal head at the upper end of the vertical support screw 16 is sleeved into the groove in the top plate of the square box seat 13, and the lower end is threadedly connected to the threaded hole in the upper end of the T-shaped shell seat 12. The vertical support screw 16 is used to fix and support the square box seat 13 and the T-shaped shell seat 12, to ensure the stability of the two seat bodies, reduce the pressure received by the cylindrical body 11, and further improve the structural stability of the entire ink cartridge device. The upper end of the vertical support screw 16 is provided with an upper auxiliary nut that is tightly arranged on the bottom surface of the square box seat 13, and the lower end is provided with a lower auxiliary nut that is tightly arranged on the upper surface of the T-shaped shell seat 12. The auxiliary nuts are used to further improve the support stability of the vertical support screw 16.

Claims

1. An ink cartridge device having a negative pressure suction guard function, characterized by: The application relates to a double-cavity ink box installed on the upper part of a U-shaped support, a negative pressure gas cylinder installed on the extension plate of the lower part of the U-shaped support, and the double-cavity ink box comprises two cylinder bodies arranged side by side, a T-shaped shell base connected between the lower ends of the two cylinder bodies, a plurality of joint pipes uniformly arranged on the bottom surface of the T-shaped shell base, two electromagnetic control valves symmetrically arranged at the two ends of the T-shaped shell base, an ink inlet pipe arranged on the upper surface of the end part of the T-shaped shell base, a square box base arranged between the upper ends of the two cylinder bodies, an internal chamber of the square box base communicated with the internal chambers of the two cylinder bodies, a negative pressure joint arranged at the end part of the square box base, and a suction pipe connected between the joint of the upper end of the negative pressure gas cylinder and the negative pressure joint.

2. The ink cartridge device having a negative pressure suction protection function according to claim 1, characterized in that: The top plate of the square box base is provided with two floats arranged side by side, and the two floats correspond to the centers of the two cylinder bodies respectively.

3. The ink cartridge device having a negative pressure suction guard function according to claim 1, characterized in that: Vertical support screws are arranged between the side edges of the square box base and the T-shaped shell base, the hexagonal head of the upper end of the vertical support screw is sleeved into the groove in the top plate of the square box base, and the lower end of the vertical support screw is screw-connected into the threaded hole in the upper end of the T-shaped shell base.

4. The ink cartridge device having a negative pressure suction guard function according to claim 3, characterized in that: The upper end of the vertical support screw is provided with an upper auxiliary nut abutting against the bottom surface of the square box base, and the lower end of the vertical support screw is provided with a lower auxiliary nut abutting against the upper surface of the T-shaped shell base.

5. The ink cartridge device having a negative pressure suction guard function according to claim 1, characterized in that: The end part of the square box base is provided with at least two negative pressure joints, and the two negative pressure joints are connected with the joint of the upper end of the negative pressure gas cylinder respectively.

6. The ink cartridge device having a negative pressure suction guard function according to claim 1, characterized in that: The lower part of the U-shaped support is provided with an ink pipe baffle, and the ink pipe baffle is uniformly provided with pipe-through holes corresponding to the positions of the joint pipes in the upper part.

7. The ink cartridge device having a negative pressure suction guard function according to claim 1, characterized in that: The upper part of the U-shaped support is uniformly provided with four double-cavity ink boxes, and the extension plate is uniformly provided with four negative pressure gas cylinders, and each negative pressure gas cylinder corresponds to one double-cavity ink box.

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