Discharging device for flexo printing machine

Abstract

The utility model relates to a feeding device for a flexographic printing machine, which comprises a mounting frame, a supply cylinder fixedly mounted on the inner side of the mounting frame, a pressurizing mechanism fixedly mounted at the top end in the supply cylinder, a material guide pipe fixedly connected to the outer side of the supply cylinder, a feeding cylinder fixedly mounted at the top end of the material guide pipe, and a cylinder cover fixedly mounted at the top of the feeding cylinder. A stirrer is fixedly installed in the barrel cover, a conveying pipe is fixedly connected to the bottom end of the supply barrel, an ink box is fixedly installed at the bottom end of the conveying pipe, and a flow dividing annular pipe is fixedly installed at the end, located in the ink box, of the conveying pipe. The beneficial effects of the utility model are that through the design, the circulation speed of the printing ink can be improved, and the printing ink can be supplemented timely to avoid ink shortage.

Description

Technical Field

[0001] The utility model relates to the technical field of flexographic printing machines, in particular to a material discharging device for a flexographic printing machine. Background Art

[0002] Flexographic printing presses use highly fluid inks. The ink is transferred to the image and text of the printing plate by the ink fountain rubber roller and anilox roller, causing it to settle. Then, the impression roller applies printing pressure, transferring the ink from the plate to the substrate. Finally, the printing process is completed by drying the surface. The printing section is the core of the flexographic printing press. The arrangement of the printing section directly affects the operating performance, print quality, printing speed, and the scope of application. Flexographic printing presses can be divided into three types based on the arrangement of the printing sections: stacked, satellite, and unitized.

[0003] Traditional flexographic printing machines are connected to the feed barrel to discharge the ink. Due to the strong viscosity of the ink, the ink supply is slow and ink shortage is prone to occur. In addition, the single discharge port limits the ink supply, resulting in low ink supply efficiency and making some parts of the print too dark or too light. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model designs a discharge device for a flexographic printing press, which can increase the circulation speed of ink through the design, and replenish ink in time to avoid ink shortage.

[0005] The utility model provides the following technical solution: a discharging device for a flexographic printing machine, comprising: a mounting frame, a supply cylinder fixedly mounted on the inner side of the mounting frame, a pressurizing mechanism fixedly mounted on the top end of the supply cylinder, a material guide pipe fixedly connected to the outer side of the supply cylinder, a discharging cylinder fixedly mounted on the top end of the material guide pipe, a cylinder cover fixedly mounted on the top of the discharging cylinder, an agitator fixedly mounted on the inside of the cylinder cover, a material delivery pipe fixedly connected to the bottom end of the supply cylinder, an ink tank fixedly mounted on the bottom end of the material delivery pipe, and a diversion ring pipe fixedly mounted on one end of the material delivery pipe located inside the ink tank.

[0006] As a preferred solution of the present invention, the pressurizing mechanism includes a bidirectional threaded rod rotatably connected to the top end of the inner part of the supply cylinder, a motor is fixedly installed on the top end of the outer side of the supply cylinder, and the driving end of the motor is fixedly connected to the bidirectional threaded rod, and the left and right ends of the bidirectional threaded rod are threadedly connected to connecting sleeves, and an extrusion plate is slidably connected to the inside of the supply cylinder and below the bidirectional threaded rod, and a transmission rod is installed between the two sets of connecting sleeves and the extrusion plate.

[0007] As a preferred solution of the present invention, multiple groups of exhaust holes are opened on the top of the supply cylinder, a positioning ring is fixedly connected to the inside of the supply cylinder and above the extrusion plate, two groups of sealing rings are provided on the outer side of the extrusion plate, and the two ends of the transmission rod are rotatably connected to the connecting sleeve and the extrusion plate respectively.

[0008] As a preferred solution of the present invention, the top of the barrel cover is fixedly connected to the feed pipe, the top of the feed pipe is threadedly connected to the sealing cover, a fixed block is installed between the barrel cover and the discharge barrel, the interiors of the two sets of fixed blocks are rotatably connected to threaded columns, the top of the threaded column is movably installed with a clamping block, and the top of the threaded column and the top of the clamping block are threadedly connected to a nut.

[0009] As a preferred solution of the present invention, the discharge barrel is fixedly connected to the supply barrel through a connecting frame, and a first solenoid valve is fixedly installed between the guide tube and the discharge barrel.

[0010] As a preferred solution of the present invention, a second solenoid valve is fixedly installed between the material delivery pipe and the supply cylinder, and the material delivery pipe is fixedly connected to the diversion ring pipe through a connector.

[0011] As a preferred solution of the present invention, an annular flow channel is provided inside the diverter ring tube, and multiple groups of diverter outlets are provided on the inner side of the diverter ring tube.

[0012] The beneficial effects of the present invention are as follows: through the coordinated design of the supply cylinder, the extrusion mechanism, the guide rod, the discharge cylinder, the agitator, the feed pipe and the diversion ring pipe, the ink is introduced into the interior of the discharge cylinder and the agitator is started, the ink is stirred by the agitator to improve the fluidity of the ink, the first solenoid valve is opened to introduce the ink into the interior of the supply cylinder through the guide pipe, and after all the ink in the discharge cylinder is introduced into the interior of the supply cylinder, the first solenoid valve is closed, and then the second solenoid valve is opened to introduce the ink into the interior of the feed pipe. In this process, pressure is applied to the ink by the pressurizing mechanism to increase the circulation speed of the ink, and the ink is introduced into the interior of the diversion ring pipe through the connector and then enters the interior of the annular flow channel, and then the ink is squeezed out simultaneously through the multi-component flow outlet, which can increase the pressure of the ink extrusion to ensure its fluidity, thereby replenishing the ink in time to avoid ink shortage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a schematic diagram of the internal structure of the feeding cylinder and the discharge cylinder of the utility model;

[0016] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0017] Figure 5 This is a schematic diagram of the structure of the diverter ring pipe of the utility model;

[0018] Figure 6This is a schematic diagram of the internal structure of the diverter ring pipe of the utility model;

[0019] In the figure: 1. Mounting frame; 2. Supply cylinder; 3. Pressurizing mechanism; 301. Bidirectional threaded rod; 302. Motor; 303. Connecting sleeve; 304. Extrusion plate; 305. Transmission rod; 306. Exhaust hole; 307. Positioning ring; 308. Sealing ring; 4. Material guide pipe; 5. Discharge cylinder; 501. Connecting frame; 502. First solenoid valve; 6. Cylinder cover; 601. Feed pipe; 602. Sealing cover; 603. Fixing block; 604. Threaded column; 605. Clamping block; 606. Nut; 7. Agitator; 8. Feed pipe; 801. Second solenoid valve; 802. Connector; 9. Ink tank; 10. Diverter ring pipe; 1001. Annular flow channel; 1002. Diverter outlet. DETAILED DESCRIPTION

[0020] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0021] Example:

[0022] like Figures 1 to 6 As shown, a discharging device for a flexographic printing machine includes: a mounting frame 1, a supply cylinder 2 is fixedly mounted on the inner side of the mounting frame 1, a pressurizing mechanism 3 is fixedly mounted on the top end of the supply cylinder 2, a material guide pipe 4 is fixedly connected to the outer side of the supply cylinder 2, a discharging cylinder 5 is fixedly mounted on the top end of the material guide pipe 4, a cylinder cover 6 is fixedly mounted on the top of the discharging cylinder 5, an agitator 7 is fixedly mounted inside the cylinder cover 6, a feed pipe 8 is fixedly connected to the bottom end of the feed pipe 8, an ink tank 9 is fixedly mounted on the bottom end of the feed pipe 8, and a diversion ring pipe 10 is fixedly mounted on one end of the feed pipe 8 located inside the ink tank 9.

[0023] In this embodiment, the pressurizing mechanism 3 includes a bidirectional threaded rod 301 rotatably connected to the top of the inner part of the supply cylinder 2, a motor 302 is fixedly installed on the top of the outer side of the supply cylinder 2, and the driving end of the motor 302 is fixedly connected to the bidirectional threaded rod 301, and the left and right ends of the bidirectional threaded rod 301 are threadedly connected with a connecting sleeve 303, and the interior of the supply cylinder 2 and the bottom of the bidirectional threaded rod 301 are slidably connected with an extrusion plate 304, and a transmission rod 305 is installed between the two sets of connecting sleeves 303 and the extrusion plate 304. At this time, the ink inside the discharge barrel 5 is introduced into the interior of the supply barrel 2 through the guide tube 4, and then the ink is introduced into the ink box 9 through the delivery pipe 8. The interior of the ink box 9 is connected to an ink-dipping roller that is used to stick the ink. During this process, the motor 302 is started to drive the two-way threaded rod 301 to rotate, and the two sets of connecting sleeves 303 are driven to move relative to each other on the two-way threaded rod 301, and the extrusion plate 304 is pushed under the transmission of the transmission rod 305, thereby applying pressure to the ink to increase the circulation speed of the ink, and then replenishing the ink in time to avoid ink shortage.

[0024] In this embodiment, a plurality of exhaust holes 306 are provided on the top of the supply cylinder 2. A positioning ring 307 is fixedly connected to the interior of the supply cylinder 2 and above the extrusion plate 304. Two sets of sealing rings 308 are provided on the outer side of the extrusion plate 304. The two ends of the transmission rod 305 are rotatably connected to the connecting sleeve 303 and the extrusion plate 304 respectively. Before the ink is introduced into the interior of the supply cylinder 2, the extrusion plate 304 is first moved upward until it is against the positioning ring 307 for positioning. During the movement of the extrusion plate 304, the squeezed air is discharged through the exhaust holes 306. At the same time, the sealing between the extrusion plate 304 and the supply cylinder 2 can be ensured by the sealing ring 308, thereby ensuring the extrusion effect of the ink.

[0025] The top of the cylinder cover 6 is fixedly connected to the feeding pipe 601, and the top of the feeding pipe 601 is threadedly connected to the sealing cover 602. A fixing block 603 is installed between the cylinder cover 6 and the discharge cylinder 5. The interiors of the two sets of fixing blocks 603 are rotatably connected to the threaded column 604. The top of the threaded column 604 is movably installed with a clamping block 605. The top of the threaded column 604 and the top of the clamping block 605 are threadedly connected with a nut 606. The ink is introduced into the interior of the discharge cylinder 5 through the feeding pipe 601. Then the sealing cover 602 is covered and the agitator 7 is started. The ink is stirred by the agitator 7 to improve the fluidity of the ink. When the cylinder cover 6 is closed, the nut 606 is locked at the top of the threaded column 604. The cylinder cover 6 and the discharge cylinder 5 are fixed by the fixing block 603 and the clamping block 605. After loosening the nut 606, the threaded column 604 can be rotated to quickly release the fixation between the cylinder cover 6 and the discharge cylinder 5, thereby facilitating the cleaning of the interior of the discharge cylinder 5.

[0026] In this embodiment, the discharge cylinder 5 is fixedly connected to the supply cylinder 2 through the connecting frame 501, and a first solenoid valve 502 is fixedly installed between the material guide tube 4 and the discharge cylinder 5. The discharge cylinder 5 is fixedly installed on the outside of the supply cylinder 2 through the connecting frame 501. After the ink is stirred by the agitator 7, the first solenoid valve 502 is opened to introduce the ink into the interior of the supply cylinder 2 through the material guide tube 4.

[0027] In this embodiment, a second solenoid valve 801 is fixedly installed between the feed pipe 8 and the supply cylinder 2. The feed pipe 8 is fixedly connected to the diversion ring pipe 10 through the connector 802. After all the ink inside the discharge cylinder 5 is introduced into the interior of the supply cylinder 2, the first solenoid valve 502 is closed, and then the second solenoid valve 801 is opened to introduce the ink into the interior of the feed pipe 8. During this process, the extrusion plate 304 is moved downward to apply pressure to the ink to increase the circulation speed of the ink.

[0028] In this embodiment, an annular flow channel 1001 is opened inside the diversion ring tube 10, and a multi-component diversion outlet 1002 is opened on the inner side of the diversion ring tube 10. The ink is introduced into the interior of the diversion ring tube 10 through the connector 802 and then enters the interior of the annular flow channel 1001. The ink is then squeezed out simultaneously through the multi-component flow outlet 1002, which not only increases the pressure of ink extrusion to ensure its fluidity, but also can quickly supply the ink box 9.

[0029] Implementation plan: The mounting bracket 1 is fixedly mounted on the flexographic printing machine, and the ink is introduced into the interior of the discharge cylinder 5, and then the sealing cover 602 is covered and the stirrer 7 is started. The ink is stirred by the stirrer 7 to improve the fluidity of the ink, and then the first solenoid valve 502 is opened, and the ink is introduced into the interior of the supply cylinder 2 through the guide tube 4. After all the ink in the discharge cylinder 5 is introduced into the interior of the supply cylinder 2, the first solenoid valve 502 is closed, and then the second solenoid valve 801 is opened to introduce the ink into the interior of the feed pipe 8. In this process, the motor 302 is started to drive the bidirectional threaded rod 301 to move. The rotation drives the two sets of connecting sleeves 303 to move relative to each other on the bidirectional threaded rod 301, and pushes the extrusion plate 304 under the transmission of the transmission rod 305, thereby applying pressure to the ink to increase the circulation speed of the ink. The ink is introduced into the interior of the diversion ring tube 10 through the connector 802 and then enters the interior of the annular flow channel 1001. The ink is then squeezed out at the same time through the multi-component flow outlet 1002, which not only increases the pressure of ink extrusion to ensure its fluidity, but also can quickly supply the ink box 9. The design can increase the circulation speed of the ink and replenish the ink in time to avoid ink shortage.

[0030] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0031] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A discharge device for a flexographic printing press, characterized in that: include: The mounting frame has a supply cylinder fixedly installed on the inner side of the mounting frame, a pressurizing mechanism fixedly installed on the top of the supply cylinder, a material guide pipe fixedly connected to the outer side of the supply cylinder, a discharge cylinder fixedly installed on the top of the material guide pipe, a cylinder cover fixedly installed on the top of the discharge cylinder, an agitator fixedly installed inside the cylinder cover, a feed pipe fixedly connected to the bottom end of the feed pipe, an ink tank fixedly installed on the bottom end of the feed pipe, and a diversion ring pipe fixedly installed on one end of the feed pipe located inside the ink tank.

2. A discharge device for a flexographic printing press according to claim 1, characterized in that: The pressurizing mechanism includes a bidirectional threaded rod rotatably connected to the top of the inner part of the supply cylinder, a motor is fixedly installed on the top of the outer side of the supply cylinder, and the driving end of the motor is fixedly connected to the bidirectional threaded rod, and the left and right ends of the bidirectional threaded rod are threadedly connected to connecting sleeves, and an extrusion plate is slidably connected to the inside of the supply cylinder and below the bidirectional threaded rod, and a transmission rod is installed between the two sets of connecting sleeves and the extrusion plate.

3. The unloading device for a flexographic printing press according to claim 2, characterized in that: There are multiple sets of exhaust holes on the top of the supply cylinder. A positioning ring is fixedly connected to the inside of the supply cylinder and above the extrusion plate. Two sets of sealing rings are provided on the outer side of the extrusion plate. The two ends of the transmission rod are rotatably connected to the connecting sleeve and the extrusion plate respectively.

4. The unloading device for a flexographic printing press according to claim 1, characterized in that: The top of the cylinder cover is fixedly connected to the feed pipe, the top of the feed pipe is threadedly connected to the sealing cover, a fixed block is installed between the cylinder cover and the discharge cylinder, the inside of the two sets of fixed blocks are rotatably connected to the threaded column, the top of the threaded column is movably installed with a clamping block, the top of the threaded column and the top of the clamping block are threadedly connected with a nut.

5. The unloading device for a flexographic printing press according to claim 1, characterized in that: The discharge barrel is fixedly connected to the supply barrel through a connecting frame, and a first electromagnetic valve is fixedly installed between the material guide pipe and the discharge barrel.

6. The unloading device for a flexographic printing press according to claim 1, characterized in that: A second solenoid valve is fixedly installed between the material delivery pipe and the supply cylinder, and the material delivery pipe is fixedly connected to the diversion ring pipe through a connector.

7. The unloading device for a flexographic printing press according to claim 1, characterized in that: An annular flow channel is provided inside the diverter ring tube, and multiple diverter outlets are provided on the inner side of the diverter ring tube.

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