Ink box inlet and outlet conversion device

Abstract

The utility model discloses an ink box inlet and outlet switching device, which relates to the technical field of printing equipment and comprises a switching valve plate and a pneumatic two-way diaphragm pump, the switching valve plate is provided with a movable valve plate and a fixed valve plate which rotate coaxially, and the movable valve plate and the fixed valve plate are in sealing contact. The movable valve plate and the fixed valve plate are each provided with two connectors, the connectors are communicated and exchange corresponding connectors after coaxial rotation, one of the movable valve plate and the fixed valve plate is correspondingly connected to the pneumatic two-way diaphragm pump, and the two connectors of the other valve plate are connected to an ink barrel and an ink box respectively. And an elastic limiting structure is arranged between the movable valve plate and the fixed valve plate. The utility model provides an ink box inlet and outlet conversion device which can conveniently convert the flowing direction of ink and recycle the ink in a time-saving and labor-saving manner.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field, concretely relates to an ink box import and export conversion device. BACKGROUND

[0002] The recovery operation of printing ink faces multiple technical bottlenecks in equipment disassembly link, and its complexity is derived from the integrated design of printing system. Taking a typical six-color rotary printing machine as an example, after completing a single printing task, the ink supply unit to be disassembled contains 12-18 precision components, involving scraper, anilox roller, ink cavity and other core components. Among them, the matching gap between the anilox roller and the scraper needs to be controlled within 50-80 μm, and the small deformation in the disassembly process can cause the gap deviation to exceed ± 15 μm, resulting in uneven ink layer thickness or ink flying phenomenon after reassembly. From the operation process analysis, the equipment disassembly needs to follow strict procedures. Therefore, it is very inconvenient to disassemble the scraper, ink box and other mechanisms to recover the ink. SUMMARY

[0003] Technical problems to be solved by the utility model

[0004] The technical problem to be solved by the utility model is to provide an ink box import and export conversion device, which can conveniently convert the ink flow direction and save time and labor to recover the ink.

[0005] Technical scheme

[0006] To solve the above problems, the technical scheme provided by the utility model is:

[0007] An ink box import and export conversion device, comprising a conversion valve plate and a pneumatic bidirectional diaphragm pump, the conversion valve plate is provided with a movable valve plate and a fixed valve plate rotating coaxially, the movable valve plate and the fixed valve plate are in sealing contact, both the movable valve plate and the fixed valve plate are provided with two interfaces, the interfaces are communicated and the corresponding interfaces are exchanged after rotating coaxially, one of the movable valve plate and the fixed valve plate is connected to the pneumatic bidirectional diaphragm pump, the two interfaces of the other valve plate are connected to an ink barrel and an ink box respectively, and an elastic limiting structure is arranged between the movable valve plate and the fixed valve plate.

[0008] The switching valve plate comprises a movable valve plate and a fixed valve plate that rotate coaxially. Each valve plate is provided with two interfaces, which are in communication in the initial state. When the movable valve plate rotates, the positions of the interfaces are interchanged, thereby achieving a change in the direction of ink flow. The two valve plates are connected by a sealing contact to prevent ink leakage. A pneumatic bidirectional diaphragm pump is connected to one of the valve plates (movable or fixed) to drive the flow of ink. It provides power for the entire system, ensuring that the ink can flow in the predetermined direction, whether from the ink tank to the ink cartridge or in the opposite direction. One valve plate is connected to the pneumatic bidirectional diaphragm pump, and the two interfaces of the other valve plate are connected to the ink tank and the ink cartridge, respectively. Such a design allows the operator to simply control the rotation of the switching valve plate to conveniently change the direction of ink flow without the need for complex disassembly of the equipment.

[0009] As an option, the fixed valve plate is fastened with a fixed frame, which is fixed to a moving frame.

[0010] By fastening the fixed valve plate to the fixed frame and then fastening the fixed frame to the moving frame, additional structural support and stability can be provided, reducing vibration and displacement during operation, and helping to maintain the overall stability and reliability of the device. The moving frame allows the entire switching device to be adjusted in position, facilitating maintenance and increasing the flexibility of the device arrangement.

[0011] As an option, the interfaces of the movable valve plate are connected by hoses.

[0012] Using hoses to connect the interfaces of the movable valve plate can effectively adapt to the position changes of the movable valve plate when switching the direction of ink flow. The hoses can bend and stretch, ensuring that the connection between the interfaces is not affected by the rotation of the valve plate, thereby maintaining the sealing and stability of the system.

[0013] As an option, the inner diameters of the interfaces of the movable valve plate and the fixed valve plate are the same.

[0014] When the inner diameters of the interfaces are the same, the flow path of the ink through the movable valve plate and the fixed valve plate can be ensured to remain consistent, reducing fluid disturbances caused by changes in diameter, thereby maintaining the stability and consistency of fluid flow. A uniform inner diameter of the interfaces helps to reduce energy loss during the transmission of ink, as additional pressure is not needed to overcome the increased fluid resistance caused by changes in diameter. This makes the entire system run more efficiently.

[0015] As an option, the outer surface of the interface is provided with a corrugated anti-dropping structure.

[0016] The corrugated anti-dropping structure increases the friction and physical locking effect to improve the connection strength between the hose and the interface, effectively reducing the risk of hose detachment caused by external pulling force or internal pressure.

[0017] As an option, a sealing ring is provided at the interface between the movable valve plate and the fixed valve plate.

[0018] The sealing ring can fill the small gap between the movable valve plate and the fixed valve plate, providing an effective barrier to prevent ink leakage, ensuring the sealing of the system.

[0019] As an option, the sealing ring is provided with multiple layers.

[0020] The multi-layer sealing structure provides additional security, even if one layer of the sealing ring fails due to wear or other reasons, other layers can still provide effective sealing, greatly reducing the risk of leakage. The multi-layer sealing ring can achieve more uniform pressure distribution on the contact surface, helping to reduce local stress concentration, thereby reducing the possibility of early failure due to uneven wear.

[0021] As an option, the movable valve plate is provided with a handle.

[0022] The presence of the handle allows the operator to easily rotate the movable valve plate without the need for additional tools or complex control systems, simplifying the operation process.

[0023] As an option, the switching valve plate and the pneumatic bidirectional diaphragm pump are provided on a mobile cart, and the mobile cart is provided with a flat plate for placing the ink bucket.

[0024] By installing key components on the mobile cart, the entire ink recovery system can be easily moved to different working positions as needed, adapting to different printing machines or sites. The design of the mobile cart helps better organize and utilize limited working space, which is particularly important for those working environments that are space-constrained or have variable layouts.

[0025] Advantages

[0026] Compared with the prior art, the technical scheme provided by the present application has the following advantages:

[0027] The technical scheme provided by the present application not only improves the efficiency of ink recovery, but also reduces the complexity and labor intensity of manual operation, achieving the goal of saving time and effort. At the same time, due to its relatively simple structure and reliable performance, it also increases the stability and service life of the system. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A structural schematic diagram of an ink cartridge import / export switching device is provided for an embodiment of the present application;

[0029] Figure 2 A structural schematic diagram of a switching valve plate of an ink cartridge import / export switching device is provided for an embodiment of the present application;

[0030] Figure 3 A cross-sectional view of a conversion valve plate of an ink cartridge import and export conversion device is provided for the embodiment of the utility model;

[0031] 1, mobile vehicle; 101, mobile wheel; 2, mobile frame; 3, pneumatic bidirectional diaphragm pump; 4, first interface; 5, second interface; 6, conversion valve plate; 601, handle; 602, fixed frame; 603, movable valve plate; 604, rotating shaft; 605, third interface; 606, fourth interface; 607, elastic limiting structure; 608, fifth interface; 609, sixth interface; 6010, fixed valve plate; 6011, sealing ring; 7, ink barrel pipe; 8, ink cartridge pipe; 9, ink barrel. DETAILED DESCRIPTION

[0032] In order to further understand the content of the utility model, the utility model is described in detail in combination with the drawings and embodiments.

[0033] Embodiment 1

[0034] In combination with the drawings Figure 1 An ink cartridge import and export conversion device, comprising a conversion valve plate 6 and a pneumatic bidirectional diaphragm pump 3, the pneumatic bidirectional diaphragm pump 3 is provided with a first interface 4 and a second interface 5. In the embodiment, the pneumatic bidirectional diaphragm pump 3 is connected to the interface of the fixed valve plate 6010. The working principle of the pneumatic bidirectional diaphragm pump 3 is to drive the diaphragm reciprocating motion by using compressed air, and the bidirectional means that two diaphragms work alternately, improving the efficiency. The pneumatic bidirectional diaphragm pump 3 has no leakage and can handle high viscosity liquid, and is suitable for high viscosity medium such as ink.

[0035] In combination with the drawings Figures 2-3 The conversion valve plate 6 is provided with a movable valve plate 603 and a fixed valve plate 6010 rotating coaxially, the movable valve plate 603 and the fixed valve plate 6010 are circular, and the rotating shaft 604 is connected in the middle, the rotating shaft 604 penetrates the movable valve plate 603 and the fixed valve plate 6010, the rotating shaft 604 is a bolt structure, and the other end is provided with a nut for fastening. The inside of the movable valve plate 603 and the fixed valve plate 6010 is provided with a bearing, and the bearing is matched with the rotating shaft 604.

[0036] The fixed valve plate 6010 is fastened with the fixed frame 602, and the fixed frame 602 is fastened to the mobile frame 2 by bolts. The conversion valve plate 6 and the pneumatic bidirectional diaphragm pump 3 are arranged on the mobile vehicle 1, and the mobile vehicle 1 is provided with a flat plate for placing the ink barrel 9. The mobile wheel 101 is arranged below the flat plate.

[0037] The movable valve plate 603 and the fixed valve plate 6010 are in sealing contact, and both the movable valve plate 603 and the fixed valve plate 6010 are provided with two interfaces. In the embodiment, the fixed valve plate 6010 is provided with a fifth interface 608 and a sixth interface 609. The interfaces of the movable valve plate 603 are connected through hoses. The interfaces are communicated and coaxially rotated to exchange the corresponding interfaces. One of the movable valve plate 603 and the fixed valve plate 6010 is connected to the pneumatic bidirectional diaphragm pump 3, and the other two interfaces of the other valve plate are connected to the ink barrel 9 and the ink cartridge. The movable valve plate 603 is provided with a third interface 605 and a fourth interface 606, the third interface 605 and the fifth interface 608 are communicated, and the fourth interface 606 and the sixth interface 609 are communicated. After the movable valve plate 603 is rotated, the third interface 605 and the sixth interface 609 are communicated, and the fourth interface 606 and the fifth interface 608 are communicated. The interfaces of the movable valve plate 603 and the fixed valve plate 6010 have the same inner diameter. The interfaces are inserted into the movable valve plate 603 and the fixed valve plate 6010 and fastened by nuts.

[0038] The outer surface of the interface is provided with a corrugated anti-dropping structure, and the outside is provided with a multi-layer barbed structure.

[0039] The interfaces of the movable valve plate 603 and the fixed valve plate 6010 are provided with a sealing ring 6011. The sealing ring 6011 is provided with multiple layers. In the embodiment, the sealing ring 6011 has two layers.

[0040] The movable valve plate 603 is provided with a handle 601, and the handle 601 includes a double-end external thread lead screw. One end of the double-end external thread lead screw is threadedly connected to a threaded hole in the movable valve plate 603, and the other end of the double-end external thread lead screw is threadedly connected to a handle 601 ball.

[0041] The movable valve plate 603 and the fixed valve plate 6010 are provided with an elastic limiting structure 607. The elastic limiting structure 607 includes a ball, a spring and a nut. In the embodiment, the inner side of the fixed valve plate 6010 is provided with a tapered groove, and the corresponding position of the movable valve plate 603 is provided with a channel. The channel is provided with a spring, one end of the spring is connected to the ball, and the other end of the spring is connected to the nut. The nut is threadedly fixed on the mouth of the channel to limit the spring. When the movable valve plate 603 rotates, the ball will roll into the tapered groove, making a sound and generating a resistance to limit the rotation.

[0042] Working principle:

[0043] Combined with the drawings Figure 1 The first interface 4 is connected to the fifth interface 608, the second interface 5 is connected to the sixth interface 609 (not shown in the figure), the third interface 605 is connected to the ink barrel 9 through the ink barrel 9 pipe 7, and the fourth interface 606 is connected to the ink cartridge through the ink cartridge pipe 8. In state one, the ink in the ink barrel 9 is sucked into the ink cartridge, and after the movable valve plate 603 is rotated by 180°, the connection of the ink barrel 9 and the ink cartridge is switched, and the ink is directly extracted from the ink cartridge to return to the ink barrel 9.

[0044] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An ink cartridge import / export conversion device characterized by comprising: The application relates to a switch valve plate and a pneumatic bidirectional diaphragm pump, the switch valve plate is provided with a movable valve plate and a fixed valve plate which rotate coaxially, the movable valve plate and the fixed valve plate are in sealing contact, the movable valve plate and the fixed valve plate are both provided with two interfaces, the interfaces are communicated and the interfaces are interchanged after coaxial rotation, one of the movable valve plate and the fixed valve plate is connected to the pneumatic bidirectional diaphragm pump, the other two interfaces of the valve plate are connected to an ink barrel and an ink box respectively, and elastic limiting structures are arranged between the movable valve plate and the fixed valve plate.

2. The ink cartridge inlet / outlet conversion device according to claim 1, wherein The fixed valve plate is fastened with a fixed frame, and the fixed frame is fixed to a moving frame.

3. The ink cartridge inlet / outlet conversion device of claim 1, wherein The interfaces of the movable valve plate are connected through hoses.

4. The ink cartridge access port switching device of claim 1, wherein The interfaces of the movable valve plate and the fixed valve plate have the same inner diameter.

5. The ink cartridge access port switching device of claim 4, wherein The interfaces are provided with corrugated anti-falling structures.

6. The ink cartridge access port conversion device of claim 1, wherein Sealing rings are arranged at the interfaces of the movable valve plate and the fixed valve plate.

7. The ink cartridge access port switching device of claim 6, wherein The sealing rings are provided with multiple layers.

8. The ink cartridge access port conversion device of claim 1, wherein, The movable valve plate is provided with a handle.

9. The ink cartridge access port switching device of any one of claims 1 to 8, wherein, The switch valve plate and the pneumatic bidirectional diaphragm pump are arranged on a moving vehicle, and the moving vehicle is provided with a flat plate for placing the ink barrel.

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